Finding the right Best 36 Inch Microwave Filler Kit can transform your kitchen from cluttered to clean in minutes. If you have ever installed an over-the-range microwave and noticed ugly gaps on the sides, you know how frustrating it looks. Dust collects there, grease builds up, and it ruins the smooth look of your cabinetry. A quality filler kit solves this by bridging the space between your appliance and the cabinet frame. In this roundup, we look at top options that help you achieve a seamless, professional finish without hiring a contractor.
Quick Product Comparison
Our Top 10 Best 36 Inch Microwave Filler Kit Reviews – Expert Tested & Recommended
1. Whirlpool GE LG Microwave Trim Kit
The universal microwave trim kit fits whirlpool ge lg over the range models offers exceptional quality and performance. This 8171339 Universal microwave filler kit is designed to fill the over the range microwave oven cabinet gap effectively. Measuring 15.75 inches in length, 10.83 inches in width, and 2.95 inches in height, it comes with 16 screws for secure installation. It is compatible with Panasonic, Whirlpool, GE, and LG over the range microwaves, specifically made for a 30-inch oven in a 36-inch cabinet opening.
Key Features That Stand Out
- ✓ Stainless steel construction ensures long-lasting durability and rust resistance
- ✓ Universal fit for multiple major brands including Whirlpool, GE, and LG
- ✓ Includes all necessary mounting hardware with 16 screws for easy setup
- ✓ Dimensions of 15.75″L x 10.83″W x 2.95″H fit standard 30-inch microwaves in 36-inch cabinets
Why We Recommend It
We recommend this filler kit because it solves the common problem of ugly gaps around your microwave. The stainless steel material blends in perfectly with most appliances, preventing dust collection and creating a clean look. It is perfect for daily use with outstanding durability and reliability, making it a top choice for homeowners who want a professional finish without the professional price tag.
Best For
This kit is best for homeowners installing a 30-inch over-the-range microwave into a 36-inch cabinet space. It is also ideal for those looking to replace a worn-out filler kit with a high-quality stainless steel option that matches their existing appliance.
Pros and Cons
Pros:
- High-quality stainless steel material resists rust and wear
- Universal compatibility reduces the need to check specific brand models
- Complete kit with screws makes installation straightforward
- Effectively fills gaps to improve kitchen aesthetics
Cons:
- May require minor bending adjustments for perfect fit in some cabinets
- Not designed for microwaves larger than 30 inches in a 36-inch space
2. Stainless Steel Microwave Trim Kit 2 Pack
The 2 pcs stainless steel microwave trim kit 3 inch side panel for kitchen cabinets offers exceptional quality and performance. This package comes with 2 pieces of microwave trim kits and 16 screws, which will only take you a few minutes to install. The oven gap filler stainless is made of quality stainless steel material, sturdy and wear resistant, reliable and reusable, anti rust. It is perfect for daily use with outstanding durability and reliability, hiding unsightly space beneath your microwave.
Key Features That Stand Out
- ✓ Includes 2 pieces of microwave trim kits plus 16 screws for complete installation
- ✓ Made of quality stainless steel material that is sturdy and wear resistant
- ✓ Anti-rust design ensures reliability and reusability over time
- ✓ Quick installation process takes only a few minutes for most users
Why We Recommend It
We recommend this 2-pack option because it provides excellent value for money while delivering a polished look. The stainless steel construction is sturdy and wear resistant, making it a reliable choice for busy kitchens. It hides unsightly space effectively, ensuring your microwave area looks clean and organized without collecting dust in the gaps.
Best For
This product is best for homeowners who want a cost-effective solution to cover side gaps around their microwave. It is also great for those who prefer having extra hardware on hand or need to fill gaps on both sides of their appliance simultaneously.
Pros and Cons
Pros:
- Includes 2 panels and 16 screws for comprehensive coverage
- Stainless steel material is durable and resistant to rust
- Quick and easy installation saves time and effort
- Hides unsightly gaps to improve kitchen appearance
Cons:
- May require manual bending adjustment for some cabinet types
- Color may vary slightly from existing microwave finishes
3. Universal 30 Inch Microwave Trim Kit
The universal microwave trim kit for 30 inch over-the-range microwave installation offers exceptional quality and performance. Made from durable stainless steel with a titanium-plated brushed finish, it offers enhanced heat resistance and corrosion protection. This is a compatible replacement for part number 8171339, serving as a universal side filler set for Whirlpool, GE, and Maytag 30-inch over-the-range microwaves. It is designed to close side gaps when installing a 30-inch over-the-range microwave into a 36-inch cabinet opening.
Key Features That Stand Out
- ✓ Premium titanium-plated stainless steel for enhanced heat and corrosion resistance
- ✓ Compatible replacement for part number 8171339 ensures reliable fit
- ✓ Universal side filler set works with Whirlpool, GE, and Maytag brands
- ✓ Specifically designed to close side gaps in 30-inch microwave installations
Why We Recommend It
We recommend this budget-friendly option because it delivers premium features without the high cost. The titanium-plated brushed finish adds an extra layer of protection against heat and corrosion, which is essential near cooking appliances. It is a universal microwave trim kit side filler set that effectively closes gaps, making it perfect for daily use with outstanding durability and reliability.
Best For
This kit is best for budget-conscious homeowners who need a reliable filler for a 30-inch over-the-range microwave. It is also ideal for those replacing an old 8171339 part who want a durable titanium-plated option that withstands kitchen heat and moisture.
Pros and Cons
Pros:
- Titanium-plated finish provides superior heat and corrosion resistance
- Affordable price point makes it accessible for most budgets
- Universal compatibility with major brands like Whirlpool and GE
- Designed specifically for 30-inch microwaves in 36-inch cabinets
Cons:
- May not fit non-standard cabinet sizes without modification
- Titanium plating can show scratches if handled roughly during install
4. Whirlpool W10164745 Microwave Filler Kit
The stainless steel microwave filler kit 2.95 inch wide replaces w10164745 for whirlpool ge offers exceptional quality and performance. When using an over the range microwave convection oven that is slimmer than the cabinet space, this universal microwave trim kit beautifies the kitchen. This wall oven trim kit is made of nice stainless steel so it blends in perfectly with the microwave, ensuring this microwave kit won’t stand out awkwardly. It is 2.95 inches wide and is perfect for a 30-inch microwave in a 36-inch wide opening or for a 36-inch microwave in a 42-inch wide opening.
Key Features That Stand Out
- ✓ Beautifies the kitchen by filling gaps when using slimmer microwave ovens
- ✓ Made of nice stainless steel that blends in perfectly with existing appliances
- ✓ 2.95 inches wide design fits 30-inch microwaves in 36-inch openings
- ✓ Also suitable for 36-inch microwaves in 42-inch wide openings
Why We Recommend It
We recommend this filler kit because it seamlessly blends in with your microwave, creating a unified look. The stainless steel construction ensures it matches most standard appliances, while the 2.95-inch width is optimized for common installation scenarios. It is perfect for daily use with outstanding durability and reliability, making your kitchen look more polished and complete.
Best For
This kit is best for homeowners with a 30-inch microwave installed in a 36-inch cabinet space who need a direct replacement for the W10164745 part. It is also suitable for those with a 36-inch microwave in a 42-inch opening looking for a stainless steel filler that matches their appliance finish.
Pros and Cons
Pros:
- Stainless steel finish blends seamlessly with most microwaves
- Versatile sizing fits both 30-inch and 36-inch microwave setups
- Replaces specific part number W10164745 for guaranteed compatibility
- Helps beautify the kitchen by eliminating visible gaps
Cons:
- Limited to specific width measurements, not universal for all sizes
- May require additional hardware if original screws are damaged
5. Whirlpool 8171339 Microwave Filler Kit
The stainless steel microwave filler kit 2.95 inch wide replaces whirlpool 8171339 for most brands offers exceptional quality and performance. When using an over-the-range microwave-convection oven that is smaller than the cabinet space, this cabinet gap filler will nicely beautify the kitchen. This over-the-range microwave filler kit is made from stainless steel so it blends in perfectly with the microwave, and this microwave space filler won’t look out of place. It is 2.95 inches wide and is perfect for a 30-inch oven in a 36-inch cabinet or a 36-inch in a 42-inch cabinet, serving as a replacement for the original 8171339 part.
Key Features That Stand Out
- ✓ Beautifies the kitchen by filling gaps when the microwave is smaller than the space
- ✓ Made from stainless steel to blend in perfectly with the microwave finish
- ✓ 2.95-inch width works for 30-inch ovens in 36-inch cabinets or 36-inch in 42-inch
- ✓ Acts as a direct replacement for the Whirlpool 8171339 part number
Why We Recommend It
We recommend this filler kit for its versatility and ability to match most microwave finishes. The stainless steel material ensures it blends in perfectly, avoiding any mismatched looks in your kitchen. It is a reliable replacement for the 8171339 part, making it perfect for daily use with outstanding durability and reliability in various cabinet configurations.
Best For
This kit is best for homeowners replacing a worn-out Whirlpool 8171339 filler kit with a durable stainless steel alternative. It is also ideal for those with either a 30-inch microwave in a 36-inch cabinet or a 36-inch microwave in a 42-inch cabinet who need a universal fit.
Pros and Cons
Pros:
- Stainless steel construction matches most microwave finishes
- Compatible with two common cabinet size configurations
- Direct replacement for Whirlpool 8171339 ensures proper fit
- Helps beautify the kitchen by covering unsightly gaps
Cons:
- Not suitable for microwaves significantly smaller or larger than specified
- Installation may require careful alignment for best results
6. Universal 30 Inch Microwave Trim Kit
The universal microwave trim kit designed for 30 inch over-the-range microwave units offers exceptional quality and performance. Made from durable stainless steel with a titanium-plated brushed finish, it provides enhanced heat resistance and corrosion protection. This is a compatible replacement for part number 8171339, serving as a universal side filler set for Whirlpool, GE, and Maytag 30-inch over-the-range microwaves. It is designed to close side gaps when installing a 30-inch over-the-range microwave into a 36-inch cabinet opening.
Key Features That Stand Out
- ✓ Premium titanium-plated stainless steel construction for durability
- ✓ Enhanced heat resistance and corrosion protection for kitchen environments
- ✓ Compatible replacement for part number 8171339 for reliable fit
- ✓ Universal side filler set supports Whirlpool, GE, and Maytag brands
Why We Recommend It
We recommend this trim kit because it combines premium materials with broad compatibility. The titanium-plated brushed finish adds an extra layer of protection against the heat and moisture common in kitchen environments. It is designed specifically to close side gaps for 30-inch over-the-range microwaves, making it perfect for daily use with outstanding durability and reliability.
Best For
This kit is best for homeowners installing a 30-inch over-the-range microwave from Whirlpool, GE, or Maytag into a 36-inch cabinet. It is also ideal for those seeking a durable, titanium-plated option to replace their existing 8171339 filler kit.
Pros and Cons
Pros:
- Titanium-plated finish offers superior heat and corrosion resistance
- Universal compatibility with multiple major appliance brands
- Designed as a direct replacement for part number 8171339
- Effectively closes side gaps for a clean, professional look
Cons:
- Specific to 30-inch microwaves, not suitable for other sizes
- Titanium plating may require gentle cleaning to maintain appearance
7. Whirlpool W10164739 Microwave Filler Kit
The black stainless steel microwave filler kit 2.95 inch wide replaces whirlpool w10164739 offers exceptional quality and performance. When using an over the range microwave convection oven that is slimmer than the cabinet space, this universal microwave trim kit beautifies the kitchen. This wall oven trim kit is made of nice black coated steel so it blends in perfectly with the microwave, ensuring this microwave kit won’t clash with your appliance. It is 2.95 inches wide and is perfect for a 30-inch microwave in a 36-inch wide opening or for a 36-inch microwave in a 42-inch wide opening.
Key Features That Stand Out
- ✓ Beautifies the kitchen by filling gaps when the microwave is slimmer than the space
- ✓ Made of nice black coated steel to blend in perfectly with black stainless microwaves
- ✓ 2.95 inches wide design fits 30-inch microwaves in 36-inch openings
- ✓ Also suitable for 36-inch microwaves in 42-inch wide openings
Why We Recommend It
We recommend this filler kit for homeowners with black stainless steel appliances who want a seamless match. The black coated steel blends in perfectly with the microwave, avoiding any visible contrast between the filler and the appliance. It is 2.95 inches wide and perfect for common installation sizes, making it perfect for daily use with outstanding durability and reliability.
Best For
This kit is best for homeowners with black stainless steel microwaves who need a filler that matches their appliance finish. It is also ideal for those replacing a W10164739 part who want a black coated steel option for a 30-inch microwave in a 36-inch cabinet or a 36-inch microwave in a 42-inch cabinet.
Pros and Cons
Pros:
- Black coated steel matches black stainless steel microwave finishes
- Blends in perfectly to create a unified kitchen look
- Fits both 30-inch and 36-inch microwave installation scenarios
- Replaces specific part number W10164739 for guaranteed compatibility
Cons:
- Black coating may show scratches more easily than plain stainless steel
- Limited to specific cabinet and microwave size combinations
8. Stainless Steel 3 Inch Microwave Side Panel
The 2 pcs stainless steel 3 inch microwave side trim gap filler panel for oven offers exceptional quality and performance. The exposed space beneath the microwave often disrupts the visual harmony of the kitchen, and this microwave trim kit is specifically designed to cover up the mess. Each set of microwave filler kit measures 15.75 inches in height, 10.75 inches in width, and 3 inches in depth, making it suitable for common sizes. It comes with 2 microwave trim panels and 16 screws, allowing for manual bending adjustment without needing a professional installer.
Key Features That Stand Out
- ✓ Covers up the mess and exposed space beneath the microwave for visual harmony
- ✓ Each panel measures 15.75 inches height, 10.75 inches width, and 3 inches depth
- ✓ Comes with 2 microwave trim panels and 16 screws for complete installation
- ✓ Allows manual bending adjustment for custom fit without professional help
Why We Recommend It
We recommend this side panel set because it effectively covers the exposed space that disrupts kitchen harmony. The 3-inch depth provides ample coverage for larger gaps, while the included screws and panels make installation straightforward. It allows for manual bending adjustment, making it perfect for daily use with outstanding durability and reliability in various kitchen setups.
Best For
This product is best for homeowners with larger side gaps around their microwave who need 3-inch depth panels for full coverage. It is also great for DIY enthusiasts who want to install filler panels themselves without hiring a professional contractor.
Pros and Cons
Pros:
- 3-inch depth provides substantial coverage for larger gaps
- Includes 2 panels and 16 screws for complete installation
- Manual bending adjustment allows for custom fitting
- Stainless steel material is sturdy and wear resistant
Cons:
- May be too deep for smaller gap applications
- Manual bending required, which may be challenging for some users
9. Universal Black Metal Microwave Filler Kit
The universal black metal microwave trim kit filler fits most built in microwaves offers exceptional quality and performance. When using an over the range microwave convection oven that is slimmer than the cabinet space, this universal microwave trim kit beautifies the kitchen. This wall oven trim kit is made of nice black coated steel so it blends in perfectly with the microwave, ensuring this microwave kit won’t stand out awkwardly. It is 2.95 inches wide and is perfect for a 30-inch microwave in a 36-inch wide opening or for a 36-inch microwave in a 42-inch wide opening.
Key Features That Stand Out
- ✓ Beautifies the kitchen by filling gaps when the microwave is slimmer than the cabinet space
- ✓ Made of nice black coated steel to blend in perfectly with black microwave finishes
- ✓ 2.95 inches wide design fits 30-inch microwaves in 36-inch openings
- ✓ Also suitable for 36-inch microwaves in 42-inch wide openings
Why We Recommend It
We recommend this black metal filler kit for its ability to blend in perfectly with black coated microwaves. The universal design fits most built-in microwaves, making it a versatile choice for various kitchen configurations. It is 2.95 inches wide and perfect for common installation sizes, making it perfect for daily use with outstanding durability and reliability.
Best For
This kit is best for homeowners with black metal or black coated microwaves who need a filler that matches their appliance color. It is also ideal for those looking for a universal fit for either a 30-inch microwave in a 36-inch cabinet or a 36-inch microwave in a 42-inch cabinet.
Pros and Cons
Pros:
- Black coated steel matches black microwave finishes for a seamless look
- Universal design fits most built-in microwave configurations
- 2.95-inch width works for two common cabinet size setups
- Helps beautify the kitchen by eliminating visible gaps
Cons:
- Black coating may show wear over time with heavy use
- Not suitable for microwaves with significantly different dimensions
10. Whirlpool GE LG Microwave Trim Kit
The microwave trim kit fits whirlpool ge lg over the range microwave models offers exceptional quality and performance. The 8171339 Microwave Filler Kit is compatible with Panasonic, Whirlpool, GE, LG, and most other brands, making this universal microwave trim kit a versatile choice. Each bracket measures 15.75 inches in height, 10.75 inches in depth, and 2.95 inches in width, designed to fill the side gaps when using a 30-inch microwave in a 36-inch cabinet. It effectively fills empty gaps around your microwave, preventing dust collection and creating a clean look.
Key Features That Stand Out
- ✓ Wide compatibility with Panasonic, Whirlpool, GE, LG, and most other brands
- ✓ Each bracket measures 15.75 inches H, 10.75 inches D, and 2.95 inches W
- ✓ Designed to fill side gaps when using a 30-inch microwave in a 36-inch cabinet
- ✓ Effectively fills empty gaps to prevent dust collection and improve appearance
Why We Recommend It
We recommend this trim kit for its wide compatibility and precise dimensions. The 8171339 Microwave Filler Kit works with multiple major brands, making it a versatile choice for various kitchen setups. It effectively fills empty gaps around your microwave, preventing dust collection and creating a clean, polished look that is perfect for daily use with outstanding durability and reliability.
Best For
This kit is best for homeowners with a 30-inch microwave installed in a 36-inch cabinet who need a universal filler that works with multiple brands. It is also ideal for those looking to prevent dust collection and improve the overall appearance of their microwave installation area.
Pros and Cons
Pros:
- Wide compatibility with multiple major appliance brands
- Precise dimensions ensure proper fit for standard installations
- Prevents dust collection by effectively filling empty gaps
- Stainless steel construction offers durability and reliability
Cons:
- Specific to 30-inch microwaves in 36-inch cabinets, not universal for all sizes
- May require additional hardware if existing mounting points are damaged
Complete Buying Guide for Best 36 Inch Microwave Filler Kit
Essential Factors We Consider
When evaluating the Best 36 Inch Microwave Filler Kit, we look at material quality first. Stainless steel is the gold standard because it resists rust and matches most appliances. We also consider dimensions carefully. A filler kit must match your specific microwave width and cabinet opening to avoid gaps or overhangs. Installation ease matters too. Kits that include all necessary screws and hardware save you time and frustration. We also check brand compatibility. Some kits are universal, while others are designed for specific brands like Whirlpool or GE. Finally, we consider finish options. Whether you need stainless steel, black coated steel, or titanium-plated options, the right finish ensures your filler kit blends seamlessly with your kitchen decor.
Budget Planning
Budget plays a big role in choosing the right filler kit. Basic stainless steel options are affordable and work well for most homes. If you want premium features like titanium plating or specialized finishes like black stainless steel, expect to pay a bit more. Keep in mind that buying a 2-pack can offer better value if you need to cover both sides or multiple installations. We recommend setting aside a small budget for tools if you don’t already have a drill or screwdriver. The good news is that most filler kits are inexpensive compared to the cost of replacing an entire microwave or cabinet. Investing in a quality filler kit now can save you from costly renovations later.
Final Thoughts
Choosing the Best 36 Inch Microwave Filler Kit comes down to your specific needs and kitchen setup. Whether you prioritize universal compatibility, premium materials, or budget-friendly options, there is a filler kit that fits your situation. We hope this guide helps you make an informed decision that transforms your kitchen into a clean, polished space. Remember to measure carefully, check compatibility, and choose a finish that matches your appliances for the best results.
Frequently Asked Questions
Q: What size microwave filler kit do I need for a 36-inch cabinet?
A: For a 36-inch cabinet, you typically need a filler kit designed for a 30-inch microwave. The most common size is 2.95 inches wide, 15.75 inches high, and 10.75 inches deep. This fills the gap when a 30-inch over-the-range microwave is installed in a 36-inch cabinet opening. Always measure your specific gap before purchasing to ensure a proper fit.
Q: Can I use a universal microwave trim kit with any brand?
A: Many universal microwave trim kits are designed to work with multiple brands including Whirlpool, GE, LG, and Panasonic. However, it is important to check the compatibility list before buying. Some kits are made as direct replacements for specific part numbers like 8171339 or W10164745. If your microwave is from a less common brand, measure your gap carefully and compare it to the kit dimensions.
Q: How difficult is it to install a microwave filler kit?
A: Most microwave filler kits are designed for easy installation. They typically come with pre-drilled holes and include all necessary screws. The process usually involves positioning the filler panel against the cabinet side, marking the holes, and screwing it in place. Some kits may require minor bending or adjustment to fit your specific cabinet. If you are comfortable using a screwdriver or drill, you can likely install it yourself in under 30 minutes.
Q: What is the difference between a trim kit and a filler kit?
A: A trim kit typically refers to the decorative frame that surrounds a built-in microwave, giving it a flush, integrated look with your cabinetry. A filler kit, on the other hand, is used to fill the empty space on the sides of an over-the-range microwave when it is smaller than the cabinet opening. Both improve the look of your kitchen, but they serve different purposes. Trim kits are for built-in installations, while filler kits are for over-the-range setups with side gaps.
Q: How do I clean and maintain my microwave filler kit?
A: Cleaning your microwave filler kit is simple. For stainless steel kits, use a soft cloth with mild soap and water. Avoid abrasive cleaners or steel wool, as they can scratch the surface. For black coated steel kits, use a non-abrasive sponge and gentle cleaner to preserve the finish. Wipe down the filler kit regularly to prevent grease and dust buildup, especially since it is located near the cooking area. With proper care, your filler kit should maintain its appearance for years.
Transforming your kitchen with the Best 36 Inch Microwave Filler Kit is easier than you think. These filler kits eliminate unsightly gaps, prevent dust buildup, and give your kitchen a polished, professional look. Whether you choose a universal stainless steel option, a budget-friendly titanium-plated kit, or a black coated steel filler for your specific appliance, you will notice the difference immediately. Take your time to measure your space, check compatibility, and select the kit that best matches your needs. With the right filler kit, your microwave installation will look seamless and complete. Don’t wait—explore the options above and find the perfect filler kit to upgrade your kitchen today.
