2021 Toyota Highlander Transmission Parts
Find Your Specific 2021 Toyota Highlander Transmission Parts
Below you will find various in-demand Toyota Transmission Parts, components and accessories for your 2021 Highlander. Advance Auto Parts has popular Highlander parts like Transmission Cooler and Parts Manual Transmission Gaskets and more. You’ll also find aftermarket and OEM Transmission Parts for other Highlander model years including
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2022 and more. Select a category of 2021 Toyota Highlander Transmission Parts below and start saving instantly.
Popular 2021 Toyota Highlander Transmission Parts Categories
Essential Transmission Parts for 2021 Toyota Highlanders
Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)
from
$25.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Transmission cooler reinstallation kit
- Contains part numbers 248001, 226201, 240250 and 4 hose clamps
- Provides all hardware for reinstallation of Imperial transmission coolers
- Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
- Made of high grade nylon for easy installation
- Removable buttons for cooler/fan relocation
- Made for both transmission coolers and electric fan installation
- Comes with Quick Connect coupler
Dorman – Differential, Transmission Drain And Fill Plug Crush Washers, Size 18mm (Part No.652-531CD)
from
$4.29
These automatic transmission drain plug gaskets are designed to match the fit and function of the original gaskets required to repair the drain plug on specified vehicles, and are made of durable materials for reliable service.
Product Features:
See More
Product Features:
- Direct replacement – these automatic transmission drain plug gaskets are designed to match the fit and function of the original gasket required to repair the plug on specified vehicles
- Ideal solution – recommended for replacement when transmission is serviced, or for an original gasket that is leaking
- Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Imperial – Maxi-Kool XL Transmission Oil Cooler (Part No.243012)
from
$85.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
Product Features:
- Class “A” motor homes, large travel trailers, 5th-wheel trailers
- GVWR up to 30,000 lbs.; towing up to 10,000 lbs.
- Compatible with OEM cooler systems
- 33% more efficient than a comparable tube and fin design
Imperial – High Performance Transmission Oil Cooler (Part No.240514)
from
$83.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 7-1/2″ x 15-7/8″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- Up to Class C motorhomes, towing up to 5,000 pounds
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242012)
from
$52.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Mid-size and full-size cars, pickups
- GVWR up to 18,000 lbs.; towing up to 3,500 lbs
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Dorman – Transmission Oil Cooler Assembly (Part No.904-955)
from
$358.99
This automatic transmission oil cooler is designed to match the function of an original cooler on specified vehicles. It is engineered to help maintain proper engine oil temperature when an original cooler has failed from heat, corrosion, or damage.
Product Features:
See More
Product Features:
- Direct replacement – this automatic transmission fluid cooler is designed to match the function of an original cooler on specified vehicle
- Ideal solution – engineered to help maintain proper transmission fluid temperature when an original cooler has failed from heat, corrosion or damage
- Durable construction – designed and manufactured to strict specifications for reliable performance
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
Imperial – Plate and Fin Style Transmission Cooler, Light Duty, 3/4" x 5-7/8" x 11" (Part No.243006)
from
$61.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
Product Features:
- Imperial Rapid-Cool plate and fin transmission cooler
- Size: 3/4″ x 11″ x 6″
- Sub-compact to compact cars
- GVWR up to 18,000 lbs.
- Compatible with OEM cooler systems
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242010)
from
$55.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial Econo-Kool tube and fin transmission cooler
- Size: 3/4″ x 5″ x 15-7/8″
- Compact and mid-size cars
- GVWR up to 16,000 lbs.; towing up to 2,500 lbs.
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – High Performance Transmission Oil Cooler (Part No.240512)
from
$67.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 7-1/2″ x 12-1/2″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – High Performance Transmission Oil Cooler (Part No.240516)
from
$85.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 10″ x 15-7/8″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11" (Part No.243008)
from
$80.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
Product Features:
- Imperial Rapid-Cool plate and fin transmission cooler
- Size: 3/4″ x 11″ x 9-1/2″
- Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
- GVWR up to 24,000 lbs.; towing up to 5,000 lbs.
- 33% more efficient than a comparable tube and fin design
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242009)
from
$40.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial Econo-Kool tube and fin transmission cooler
- Size: 3/4″ x 5″ x 12-1/2″
- Sub-compact to compact cars
- GVWR up to 12,000 lbs.
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243007)
from
$73.99
Product Features:
See More
- Imperial Maxi-Cool« plate and fin transmission cooler
- Size: 3/4″ x 11″ x 7-1/2″
- Mid-size and full-size cars, pickups
- GVWR up to 20,000 lbs.; towing up to 2,500 lbs.
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Upgrade your 2021 Toyota Highlander with Top-Quality Transmission Parts
When it comes to maintaining or upgrading your 2021 Toyota Highlander, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Toyota or enhancing its overall performance, Transmission Parts are key to keeping your Highlander functioning at its best. At Advance Auto Parts, we offer a wide selection of 11 Transmission Parts for the 2021 Toyota Highlander, designed to meet your needs without breaking the bank.
From
Transmission Cooler and Part
replacements to
Manual Transmission Gaskets
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Transmission Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Transmission Parts for your 2021 Toyota Highlander at great prices.
Our Transmission Parts inventory for this model
ranges from just $4.29 to $85.99, with
an average price of $64.00.
Our 11 Transmission Parts in stock come from 2 trusted brands, so you’re sure to find the right part for your 2021 Toyota Highlander without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2021 Toyota Highlander, we stock popular OEM and aftermarket Transmission Parts from top names
like Imperial, and more.
Imperial Transmission Parts
start at just $55.99 and boast an impressive 4.1 stars average rating from customers.
With 584 customer reviews and counting, our 2021 Toyota Highlander Transmission Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Transmission Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2021 Toyota Highlander is always ready to roll. We’re committed to providing you with everything you need to keep your Highlander in top shape, all in one place.
Start shopping confidently below for your 2021 Toyota Highlander!
Best-Selling Transmission Cooler and Parts for 2021 Toyota Highlanders
Enhance the driving experience in your Toyota with 10 quality Transmission Cooler and Part components, starting at $25.99.
Imperial – High Performance Transmission Oil Cooler (Part No.240516)
from
$85.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 10″ x 15-7/8″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243007)
from
$73.99
Product Features:
See More
- Imperial Maxi-Cool« plate and fin transmission cooler
- Size: 3/4″ x 11″ x 7-1/2″
- Mid-size and full-size cars, pickups
- GVWR up to 20,000 lbs.; towing up to 2,500 lbs.
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242010)
from
$55.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial Econo-Kool tube and fin transmission cooler
- Size: 3/4″ x 5″ x 15-7/8″
- Compact and mid-size cars
- GVWR up to 16,000 lbs.; towing up to 2,500 lbs.
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242009)
from
$40.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial Econo-Kool tube and fin transmission cooler
- Size: 3/4″ x 5″ x 12-1/2″
- Sub-compact to compact cars
- GVWR up to 12,000 lbs.
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Maxi-Kool XL Transmission Oil Cooler (Part No.243012)
from
$85.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
Product Features:
- Class “A” motor homes, large travel trailers, 5th-wheel trailers
- GVWR up to 30,000 lbs.; towing up to 10,000 lbs.
- Compatible with OEM cooler systems
- 33% more efficient than a comparable tube and fin design
Imperial – Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11" (Part No.243008)
from
$80.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
Product Features:
- Imperial Rapid-Cool plate and fin transmission cooler
- Size: 3/4″ x 11″ x 9-1/2″
- Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
- GVWR up to 24,000 lbs.; towing up to 5,000 lbs.
- 33% more efficient than a comparable tube and fin design
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242012)
from
$52.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Mid-size and full-size cars, pickups
- GVWR up to 18,000 lbs.; towing up to 3,500 lbs
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – High Performance Transmission Oil Cooler (Part No.240514)
from
$83.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 7-1/2″ x 15-7/8″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- Up to Class C motorhomes, towing up to 5,000 pounds
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)
from
$25.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Transmission cooler reinstallation kit
- Contains part numbers 248001, 226201, 240250 and 4 hose clamps
- Provides all hardware for reinstallation of Imperial transmission coolers
- Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
- Made of high grade nylon for easy installation
- Removable buttons for cooler/fan relocation
- Made for both transmission coolers and electric fan installation
- Comes with Quick Connect coupler
Imperial – High Performance Transmission Oil Cooler (Part No.240512)
from
$67.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Imperial high-performance transmission cooler
- Size: 3/4″ x 7-1/2″ x 12-1/2″
- SAE 45-degree fittings for maximum reliability
- Electrostatic powder-coated to prevent corrosion
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Most Popular 2021 Toyota Highlander Manual Transmission Gaskets
Customize your Toyota with 1 Manual Transmission Gaskets products
like Manual Trans Drain Plug Gaskets, all
priced under $4.29.
Dorman – Differential, Transmission Drain And Fill Plug Crush Washers, Size 18mm (Part No.652-531CD)
from
$4.29
These automatic transmission drain plug gaskets are designed to match the fit and function of the original gaskets required to repair the drain plug on specified vehicles, and are made of durable materials for reliable service.
Product Features:
See More
Product Features:
- Direct replacement – these automatic transmission drain plug gaskets are designed to match the fit and function of the original gasket required to repair the plug on specified vehicles
- Ideal solution – recommended for replacement when transmission is serviced, or for an original gasket that is leaking
- Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Top-Rated Transmission Parts Brands For Your 2021 Toyota Highlander
Shop for the best-rated brands offering Transmission Parts and other products for your 2021 Toyota Highlanders. Below you’ll find some of our best rated Transmission Parts from Imperial, and more. Transmission Parts from these brands that fit a 2021 Highlander start at just $55.99 and are rated as high as 4.1 stars. OEM and aftermarket Transmission Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Imperial 2021 Toyota Highlander Transmission Parts
When it comes to maintaining or upgrading your 2021 Toyota Highlander, using quality Transmission Parts is essential to ensure durability and a perfect fit. Imperial ticks all of those boxes. We offer a wide selection of Imperial Transmission Parts, specifically designed for the 2021 Toyota Highlander. With over 3 Imperial brand Transmission Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $55.99, with an average price of just $71.99. Plus, with over 41 customer reviews and an average rating of 4.1 stars, you can trust that our Imperial Transmission Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$55.99
(30)
Econo-Kool Transmission Oil Cooler
“Tranny cooler lines rotted on my 06 Forester. Bought this and put it in between the ac condenser and engine radiator. Works great”
from
$73.99
(7)
Maxi-Kool® XL Transmission Oil Cooler
“this transmission oil cooler is replacing my one on my 2000 dodge dakota its priced right mid size and easy to put in the ome one is 250 this is 60 an”
FAQs for 2021 Toyota Highlander Transmission Parts
Which Transmission Parts are best-sellers for 2021 Toyota Highlanders?
Out of 11 Transmission Parts that fit 2021 Toyota Highlanders, the following parts are the top sellers:
- Econo-Kool Transmission Oil Cooler (6014720) – $40.99
- Transmission Oil Cooler Reinstallation Kit (5670023) – $25.99
- High Performance Transmission Oil Cooler (20230017) – $67.99
What’s the price range for 2021 Toyota Highlander Transmission Parts?
Transmission Part prices for the 2021 Toyota Highlander start at $4.29 and go up to $85.99 for the most premium parts.
What’s the average price of a Transmission Part for a 2021 Toyota Highlander?
The average price for Transmission Parts for the 2021 Toyota Highlander is $64.00. Keep in mind the variety of part types within our Transmission Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Transmission Parts for other Toyota Highlander model years?
What are the cheapest Transmission Parts for my 2021 Toyota Highlander?
The cheapest 2021 Toyota Highlander Transmission Parts we carry in stock are:
- Differential, Transmission Drain And Fill Plug Crush Washers, Size 18mm (50247702) – $4.29
- Transmission Oil Cooler Reinstallation Kit (5670023) – $25.99
- Econo-Kool Transmission Oil Cooler (6014720) – $40.99
- Econo-Kool® Transmission Oil Cooler (20230020) – $52.99
- Econo-Kool Transmission Oil Cooler (6015018) – $55.99
What are the top-rated Transmission Parts that fit the 2021 Toyota Highlander?
Out of 584 reviews by customers, our 2021 Toyota Highlander Transmission Parts have an average customer rating of . These are some of the highest-rated Transmission Part types for the 2021 Toyota Highlander and their top-rated products:
- Transmission Cooler and Parts
- High Performance Transmission Oil Cooler (15230020) – $85.99
- Maxi-Kool® XL Transmission Oil Cooler (12031443) – $73.99
- Maxi-Kool XL Transmission Oil Cooler (5670021) – $85.99
What types of Transmission Parts do you sell for my 2021 Toyota Highlander?
As of 11/2/25, these are some of the most in-demand types of Transmission Parts for a 2021 Toyota Highlander:
Can I get help with 2021 Toyota Highlander Transmission Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Toyota Transmission Parts and more.
What is your return policy for Toyota Highlander Transmission Parts?
Advance Auto Parts keeps returns simple. For new Toyota Highlander Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
