For your 2021 Toyota Highlander in 2026, the best undercarriage covers are the ones that match your trim, drivetrain, and OEM part number. Look for a front engine splash shield like 514410E100, a rear undercover shield, or a FWD- or hybrid-specific cover if that’s your setup. Choose durable plastic, bolt-on or snap-on fitment, and a solid warranty. The right cover protects against debris and moisture, and the details below help you pick the best match.
| Toyota Highlander Front Engine Splash Shield Cover (514410E100) |  | Best Front Cover | Fitment: 2020-2023 Highlander | Position: Front | Part Number: 514410E100 | VIEW LATEST PRICE | Read Our Analysis |
| Compatible Rear Driver Side Undercover Shield for Toyota Highlander |  | Rear Driver Side | Fitment: 2020-2022 Highlander | Position: Rear driver side | Part Number: TO1228274 | VIEW LATEST PRICE | Read Our Analysis |
| Garage-Pro Engine Splash Shield for Toyota Highlander FWD |  | FWD Specific Pick | Fitment: 2020-2022 Highlander FWD | Position: Rear passenger side | Part Number: 514430E050 / TO1228275 | VIEW LATEST PRICE | Read Our Analysis |
| YHTAUTO Rear Right Engine Splash Shield for Highlander |  | Best Right Fit | Fitment: 2020-2022 Highlander FWD | Position: Rear right passenger side | Part Number: 514430E050 / TO1228275 | VIEW LATEST PRICE | Read Our Analysis |
| Toyota Highlander Engine Splash Shield Skid Plate |  | Best Protection | Fitment: 2020-2022 Highlander | Position: Front | Part Number: Not listed | VIEW LATEST PRICE | Read Our Analysis |
| Toyota Highlander Front Engine Splash Shield Cover 2020-2023 |  | Best Front Replacement | Fitment: 2020-2023 Highlander | Position: Front | Part Number: 514410E180 / TO1228286 | VIEW LATEST PRICE | Read Our Analysis |
| Rareelectrical Under Engine Cover for Toyota Highlander 2020-2021 |  | Hybrid Compatible | Fitment: 2020-2021 Highlander Hybrid | Position: Rear | Part Number: 514200E040-Pfm | VIEW LATEST PRICE | Read Our Analysis |
| KarParts360 Toyota Highlander Engine Splash Shields Pair 2020-2022 |  | Best Pair Set | Fitment: 2020-2022 Highlander | Position: Rear left/right | Part Number: TO1228275 / TO1228274 | VIEW LATEST PRICE | Read Our Analysis |
| Parts N Go Front Engine Under Cover Highlander |  | OEM Match | Fitment: 2020-2023 Highlander | Position: Front | Part Number: 514410E101 / TO1228271 | VIEW LATEST PRICE | Read Our Analysis |
| Rareelectrical Under Engine Cover Splash Guard for Toyota Highlander |  | Best Bolt-On | Fitment: 2021-2023 Highlander | Position: Front | Part Number: 514410E180 | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Toyota Highlander Front Engine Splash Shield Cover (514410E100)
Need a replacement for your Highlander’s front underside? This STILEALUS Front Engine Splash Shield Cover fits 2020-2023 Toyota Highlander models and replaces OEM part 514410E100. You’ll get one wear-resistant plastic cover built for strong, long-lasting protection against road debris, water, and grime. It installs with snap-on and bolt-on points, and a professional install can help guarantee a proper fit. You also get a 1-year unlimited-mileage quality guarantee, plus support if you have questions. Amazon’s 30-day return guarantee adds extra confidence for your purchase.
- Fitment:2020-2023 Highlander
- Position:Front
- Part Number:514410E100
- Material:Plastic
- Install Type:Snap-on/bolt-on
- Warranty:1-year
- Additional Feature:Wear-resistant plastic
- Additional Feature:Excellent strength
- Additional Feature:1-year quality guarantee
Compatible Rear Driver Side Undercover Shield for Toyota Highlander
If you need a rear driver side undercover shield, this Toyota Highlander option fits 2020-2022 models well. You can use this compatible replacement shield, part number TO1228274, to restore protection under your Highlander. MDR Trading Inc. makes it under the Generic brand, and the listing emphasizes fitment for your vehicle. It’s sold as a universal fit part, but it’s specifically described for Toyota Highlander models from 2020 to 2022. If you order it, you’ll also get Amazon’s 30-day voluntary return guarantee, which gives you some flexibility if the fit isn’t right.
- Fitment:2020-2022 Highlander
- Position:Rear driver side
- Part Number:TO1228274
- Material:Not listed
- Install Type:Not listed
- Warranty:Not listed
- Additional Feature:Partslink TO1228274
- Additional Feature:MDR Trading Inc
- Additional Feature:Generic brand
Garage-Pro Engine Splash Shield for Toyota Highlander FWD
Garage-Pro’s splash shield is a smart FWD-specific pick for 2020-2022 Highlander owners. You get an OE replacement that fits the rear, passenger-side position on front-wheel-drive models, so you won’t waste time forcing an ill-matched part. It shields engine and exhaust heat components, helping protect critical underbody areas and support long-term maintenance. Garage-Pro builds it with reliable quality, and the part crosses to 514430E050 and TO1228275. You also get a 1-year unlimited-mileage warranty, which adds confidence if you’re replacing a worn or damaged shield.
- Fitment:2020-2022 Highlander FWD
- Position:Rear passenger side
- Part Number:514430E050 / TO1228275
- Material:Plastic
- Install Type:Bolt-on
- Warranty:1-year
- Additional Feature:FWD-specific fit
- Additional Feature:Shields exhaust heat
- Additional Feature:Garage-Pro warranty
YHTAUTO Rear Right Engine Splash Shield for Highlander
YHTAUTO’s rear right splash shield is the right fit for 2020–2022 FWD Highlanders. You get a precise OEM-style fit for the rear right passenger side, and it won’t work on AWD models. Its injection-molded plastic keeps weight down, while the nano-coating helps resist moisture and rust. You can protect your chassis from stones, mud, and road debris on rough drives. It mounts with bolts, needs no cutting or drilling, and matches reference numbers 514430E050 and TO1228275. Professional installation’s recommended, but you’ll benefit from durable protection and better efficiency.
- Fitment:2020-2022 Highlander FWD
- Position:Rear right passenger side
- Part Number:514430E050 / TO1228275
- Material:Advanced plastic
- Install Type:Bolt mounting
- Warranty:Not listed
- Additional Feature:Nano-coated surface
- Additional Feature:Moisture and rust resistant
- Additional Feature:No cutting or drilling
Toyota Highlander Engine Splash Shield Skid Plate
Toyota Highlander drivers who want dependable underbody defense will appreciate this engine splash shield skid plate. You can fit it on 2020-2022 2.5L models, including your 2021 Highlander, with a direct replacement design that uses existing mounting points. Its high-strength plastic steel construction blocks road spray, slush, gravel, and debris from reaching the engine bay, while solid edge sealing helps keep out small particles. You’ll also reduce splash during heavy rain, cut drag for better efficiency, and enjoy less cabin noise. Vent openings maintain airflow and cooling.
- Fitment:2020-2022 Highlander
- Position:Front
- Part Number:Not listed
- Material:Plastic steel
- Install Type:Existing points
- Warranty:Not listed
- Additional Feature:High-strength plastic steel
- Additional Feature:Sound-dampening effect
- Additional Feature:Ventilation openings
Toyota Highlander Front Engine Splash Shield Cover 2020-2023
If you need a direct-fit front replacement, this Highlander splash shield covers 2020-2023 models. You can install it on your Toyota Highlander, including XSE trims from 2021-2023, using the existing mounting points. Made from high-strength PP, it helps block road spray, slush, gravel, and debris from reaching the engine bay and oil pan. It also cuts down water splash in heavy rain, which can help prevent stalling. The shield’s sealed edges, ventilation openings, and aerodynamic shape support airflow, quieter operation, and better efficiency.
- Fitment:2020-2023 Highlander
- Position:Front
- Part Number:514410E180 / TO1228286
- Material:PP plastic
- Install Type:Direct replacement
- Warranty:Not listed
- Additional Feature:High-strength PP material
- Additional Feature:XSE-specific design
- Additional Feature:Sound-dampening effect
Rareelectrical Under Engine Cover for Toyota Highlander 2020-2021
Rareelectrical’s under engine cover is a smart hybrid-compatible pick for 2020–2021 Highlander owners. You get a new plastic engine splash shield made for the 2.5L 4-cylinder hybrid in Highlander Hybrid LE, Limited, Platinum, and XLE trims. It fits the rear position and helps protect undercarriage components from road debris. Because it’s a direct-fit, bolt-on part, you can install it without major hassle. Before you buy, verify the OEM number 514200E040-Pfm against your original unit so you match fitment exactly. This aftermarket cover keeps your engine area better shielded on daily drives.
- Fitment:2020-2021 Highlander Hybrid
- Position:Rear
- Part Number:514200E040-Pfm
- Material:Plastic
- Install Type:Direct fit/bolt-on
- Warranty:Not listed
- Additional Feature:Hybrid-specific fit
- Additional Feature:Bolt-on installation
- Additional Feature:New condition
KarParts360 Toyota Highlander Engine Splash Shields Pair 2020-2022
KarParts360’s pair set suits you when your 2020–2022 Highlander needs direct-fit rear undercovers. You get a two-piece splash shield kit for the driver and passenger sides, built for the rear underbody. The set matches Partslink TO1228275 and TO1228274, plus OEM 514430E050 and 514440E030, so you can verify fit before you buy. KarParts360 builds these to OEM specs with high-quality materials, and each piece gets evaluated for safety and durability. At 2.5 pounds, it stays lightweight, and Amazon’s 30-day return guarantee gives you extra peace of mind.
- Fitment:2020-2022 Highlander
- Position:Rear left/right
- Part Number:TO1228275 / TO1228274
- Material:High-quality material
- Install Type:Vehicle specific
- Warranty:Not listed
- Additional Feature:Set of 2
- Additional Feature:OEM-spec durability
- Additional Feature:Comprehensive evaluation
Parts N Go Front Engine Under Cover Highlander
Parts N Go’s Front Engine Under Cover is an OEM match for 2020-2023 Highlander drivers. You can use it on L, LE, Limited, Platinum, and Hybrid trims, with Hybrid fitment covering 2020-2022 LE, Limited, Platinum, and XLE models. It replaces part number 514410E101 and Partslink TO1228271, so you’re getting the right direct-fit piece. Because it meets OEM specs, you won’t need to modify anything during installation. Its durable build helps protect your engine bay, and the one-year manufacturer warranty gives you extra confidence after purchase.
- Fitment:2020-2023 Highlander
- Position:Front
- Part Number:514410E101 / TO1228271
- Material:Durable material
- Install Type:No modifications
- Warranty:1-year
- Additional Feature:OEM specifications
- Additional Feature:No modifications needed
- Additional Feature:Hybrid compatibility
Rareelectrical Under Engine Cover Splash Guard for Toyota Highlander
Built for 2021-2023 Highlanders, this bolt-on splash guard shields your engine from road debris. You get a direct-fit aftermarket replacement that matches OEM part number 514410E180 and mounts at the front undercarriage. Rareelectrical makes it from plastic, and it arrives new, ready for installation. It fits the 2023 Highlander XSE 2.4L 4-Cyl and the 2021-2022 XSE 3.5L V6. Because fitment can vary, you should verify the OEM number from your original part before you buy. This cover helps keep your engine bay protected.
- Fitment:2021-2023 Highlander
- Position:Front
- Part Number:514410E180
- Material:Plastic
- Install Type:Bolt-on/direct fit
- Warranty:Not listed
- Additional Feature:XSE-specific application
- Additional Feature:Bolt-on fit
- Additional Feature:New condition
Factors to Consider When Choosing a 2021 Toyota Highlander Undercarriage Cover
When you choose a 2021 Toyota Highlander undercarriage cover, you need to match your exact vehicle compatibility first, including trim and model year. You should also confirm whether the cover fits the front or rear, and check if it works with your FWD or AWD setup. Finally, verify the OEM part number and choose a durable material that can handle road debris and weather.
Vehicle Compatibility
To get the right fit, you’ll want to choose an undercarriage cover made specifically for the 2021 Toyota Highlander, since even small differences in design can affect installation and performance. Check that the part matches your exact Highlander variant, whether you drive a Hybrid, XSE, or another trim, because part numbers can change between models. You should also confirm the cover meets OEM specifications so it supports proper fit, structural integrity, and vehicle performance. Always compare the OEM or Partslink number from your original cover with the replacement listing to avoid mismatches. Even if a cover looks close, a verified compatibility match helps you install it confidently and keeps your Highlander protected the way Toyota intended.
Front Or Rear Fit
Once you’ve confirmed the right fit for your 2021 Toyota Highlander, the next step is choosing whether you need a front or rear undercarriage cover. A front cover protects the engine and other critical parts from road debris, moisture, and heat, so it’s the better choice if you want to guard the most exposed components. A rear cover focuses on the back undercarriage, helping preserve overall structure and blocking environmental damage. You should also check that the cover matches your model year and trim, including hybrid-specific versions when needed. Some covers install easily, while others use complex mounts and may need professional help. Picking the correct location keeps protection targeted, fit secure, and installation smoother for your Highlander.
FWD Or AWD
Whether your 2021 Toyota Highlander is FWD or AWD is a key detail, because undercarriage covers aren’t always interchangeable between the two setups. You need to match the cover to your drivetrain, since FWD models and AWD variants often use different shapes, mounting points, and clearances. A cover built for FWD may fit cleanly and help keep weight down, which can support better fuel efficiency. AWD versions may need a different design, and some installations can call for extra adjustment or minor modifications. If you choose the wrong version, you could end up with poor fitment or reduced protection. Always confirm your drivetrain before you buy, so you get a cover that installs properly and performs the way your Highlander needs.
OEM Part Number
The OEM part number is your best guide when choosing a 2021 Toyota Highlander undercarriage cover, because it tells you exactly which part matches your vehicle’s specific configuration. You can verify that number against your Highlander’s specs to avoid fitment issues and save time. Check the existing cover or your vehicle’s service manual to find the exact identifier. When you use the correct OEM part number, you help preserve warranty coverage and keep the part aligned with factory performance standards. You can also cross-reference that number with aftermarket options, which gives you more choices without sacrificing compatibility. If you’re comparing listings, make the part number your first filter, then confirm the trim, drivetrain, and model-year details before you buy.
Material Durability
After you’ve matched the correct OEM part number, material durability should be your next focus when choosing a 2021 Toyota Highlander undercarriage cover. You’ll want a cover made from high-strength plastic, especially polypropylene, because it resists wear and impact well. Look for injection-molded construction, which gives you a lightweight but sturdy shield that won’t add unnecessary mass. If you drive in rain, snow, or slush, choose advanced materials with nano-coating for better moisture and rust resistance. A durable cover should also block road spray, gravel, and debris before they reach critical engine components. When the cover meets original equipment standards, you get a precise fit that helps it last longer and perform reliably.
Installation Method
Installation method can make or break the fit of your 2021 Toyota Highlander undercarriage cover, so focus on how it attaches before you buy. A bolt-on design usually gives you the most secure fit, and it often uses the Highlander’s existing mounting points, so you won’t need modifications. If you want a quicker setup, a snap-on cover can save time and may let you skip professional help. You should still confirm that the cover matches your vehicle’s mounts for clean alignment. For complex designs, professional installation can help you avoid gaps or loose edges. Check whether the package includes hardware and clear instructions, because that’ll make the job smoother and less frustrating. Pick the method that matches your skill level and your need for convenience.
Warranty Coverage
Warranty coverage is worth checking once you’ve narrowed down the fit and mounting style, because it tells you how much backup you’ll get if something goes wrong. You’ll usually see coverage from one year to unlimited mileage, which can protect you from defects in materials or workmanship. A longer, stronger warranty often signals that the maker trusts the cover’s durability. Check whether it covers replacement parts only or also pays labor if installation issues come up. Read the fine print for exclusions, since improper installation or misuse can void protection. It’s also smart to look for a return policy, because it gives you another way out if the cover arrives damaged or doesn’t fit your Highlander correctly.
Frequently Asked Questions
Do Undercarriage Covers Affect Fuel Economy on a 2021 Highlander?
Yes, they can slightly improve your 2021 Highlander’s fuel economy by reducing drag, especially at highway speeds. If you remove damaged covers, you might lose that small benefit and expose components underneath.
Can I Install a Replacement Cover Without Professional Help?
Yes, you can install it yourself if you’ve got basic tools and patience. Like fitting a puzzle piece, you’ll need to align clips and bolts carefully, then check for secure mounting before driving.
Are OEM Covers Better Than Aftermarket Options for Durability?
Yes, you’ll usually get better durability from OEM covers because they fit precisely and use factory-tested materials. Aftermarket options can still last well, but you should compare thickness, mounting points, and reviews carefully.
Will a Cover Fit if My Highlander Has AWD?
Yes, it might fit, and that’s often a lucky break. You’ll need an AWD-specific cover, though, because drivetrain layout changes mounting points and clearance. Check your VIN, trim, and part number before you buy.
How Often Should Undercarriage Covers Be Inspected for Damage?
You should inspect undercarriage covers at every oil change, after rough roads, and whenever you hear scraping. You’ll catch cracks, loose fasteners, or missing panels early, helping prevent bigger damage and costly repairs.
Conclusion
When you choose the right undercarriage cover, you’re like a traveler fitting armor before a long road. The best shield doesn’t just hide the engine’s underside; it keeps dirt, water, and damage from slipping in like unseen thieves. You want a cover that matches your Highlander’s fit, your driving habits, and your budget. Pick wisely, and you’ll help your SUV stay steady, protected, and ready for whatever the road throws at it.
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