2021 Subaru WRX STI Transmission Parts
Find Your Specific 2021 Subaru WRX STI Transmission Parts
Below you will find various in-demand Subaru Transmission Parts, components and accessories for your 2021 WRX STI. Advance Auto Parts has popular WRX STI parts like Transmission Seals, Transmission Mounts, Automatic Transmission Pan and Gaskets and more. You’ll also find aftermarket and OEM Transmission Parts for other WRX STI model years including
2015,
2016,
2017,
2018,
2019,
2020 and more. Select a category of 2021 Subaru WRX STI Transmission Parts below and start saving instantly.
Popular 2021 Subaru WRX STI Transmission Parts Categories
Essential Transmission Parts for 2021 Subaru WRX STIs
Whiteline – Gearbox Crossmember Pad Bushing (Part No.KDT901)
from
$69.99
Replace worn suspension bushings to as new condition and appearance with Whiteline black synthetic elastomer bushings.
Product Features:
See More
Product Features:
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Specially bonded design for optimised strength typically required in high load bearing applications.
Whiteline – Gearbox Selector Bushing (Part No.KDT958)
from
$39.99
The Whiteline shifter bushing kit has been engineered to eliminate that sloppy, plush shifter feel found in the rubber OEM bushings. By drastically reducing the bushing compliance, improves the crispness of cross gate up and downshifts removing the potential of missed and poor shifts. Also incorporating a radius edged flanged bushing head reduces any potential of bushing grab or stiction on the mounting faces during the initial shifting moment allowing a bind free clean gear shift.
Product Features:
See More
Product Features:
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
- Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
- Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
Anchor – Torque Strut Motor Mount: Rear, 1 Piece (Part No.9559)
from
$29.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. The Torque Strut prevents engine rocking. Each part is engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to SAAB 05-06; SUBA 99-22;. Please verify your application.
Product Features:
See More
Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 1999-2022
- Weight approx: 1 Lbs
Nippon Reinz – Oil Drain Plug Gaske (Part No.A612028860NRZ)
from
$2.00
Oil Drain Plug Gaske
Anchor – Transmission Mount: Rear, 1 Piece (Part No.9566)
from
$81.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to SUBA 04-19;. Please verify your application.
Product Features:
See More
Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 2004-2019
- Weight approx: 3 Lbs
NOK – Drive Axle Seal (Part No.J7043406572NOK)
from
$11.06
Drive Axle Seal
NOK – MT Output Shaft Seal (Part No.J1157403532NOK)
from
$9.65
MT Output Shaft Seal
Upgrade your 2021 Subaru WRX STI with Top-Quality Transmission Parts
When it comes to maintaining or upgrading your 2021 Subaru WRX STI, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Subaru or enhancing its overall performance, Transmission Parts are key to keeping your WRX STI functioning at its best. At Advance Auto Parts, we offer a wide selection of 6 Transmission Parts for the 2021 Subaru WRX STI, designed to meet your needs without breaking the bank.
From
Transmission Seal
replacements to
Transmission Mounts
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 Subaru WRX STI at great prices.
Our Transmission Parts inventory for this model
ranges from just $2.00 to $81.99, with
an average price of $34.11.
Our 6 Transmission Parts in stock come from 4 trusted brands, so you’re sure to find the right part for your 2021 Subaru WRX STI without overspending.
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 Subaru WRX STI is always ready to roll. We’re committed to providing you with everything you need to keep your WRX STI in top shape, all in one place.
Start shopping confidently below for your 2021 Subaru WRX STI!
Best-Selling Transmission Seals for 2021 Subaru WRX STIs
Enhance the driving experience in your Subaru with 2 quality Transmission Seal components, starting at $9.65.
NOK – Drive Axle Seal (Part No.J7043406572NOK)
from
$11.06
Drive Axle Seal
NOK – MT Output Shaft Seal (Part No.J1157403532NOK)
from
$9.65
MT Output Shaft Seal
Most Popular 2021 Subaru WRX STI Transmission Mounts
Customize your Subaru with 2 Transmission Mounts products
like Transmission Mounts and
Torque Strut Mounts, all
priced under $81.99.
Anchor – Torque Strut Motor Mount: Rear, 1 Piece (Part No.9559)
from
$29.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. The Torque Strut prevents engine rocking. Each part is engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to SAAB 05-06; SUBA 99-22;. Please verify your application.
Product Features:
See More
Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 1999-2022
- Weight approx: 1 Lbs
Anchor – Transmission Mount: Rear, 1 Piece (Part No.9566)
from
$81.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to SUBA 04-19;. Please verify your application.
Product Features:
See More
Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 2004-2019
- Weight approx: 3 Lbs
Top Picks for 2021 Subaru WRX STI Automatic Transmission Pan and Gaskets
Upgrade Subaru WRX STIs with top-quality Automatic Transmission Pan and Gaskets parts, including 1 OEM and aftermarket selections for your 2021 model.
Nippon Reinz – Oil Drain Plug Gaske (Part No.A612028860NRZ)
from
$2.00
Oil Drain Plug Gaske
In-Demand Automatic Transmission Parts for 2021 Subaru WRX STIs
Select from 1 premium Automatic Transmission Parts parts for your 2021 Subaru WRX STI.
Whiteline – Gearbox Crossmember Pad Bushing (Part No.KDT901)
from
$69.99
Replace worn suspension bushings to as new condition and appearance with Whiteline black synthetic elastomer bushings.
Product Features:
See More
Product Features:
- Install guide included providing detailed instructions on how to install your new Whiteline purchase.
- Internal grease reservoirs provide continual self lubrication for optimum friction management.
- Specially bonded design for optimised strength typically required in high load bearing applications.
FAQs for 2021 Subaru WRX STI Transmission Parts
Which Transmission Parts are best-sellers for 2021 Subaru WRX STIs?
Out of 6 Transmission Parts that fit 2021 Subaru WRX STIs, the following parts are the top sellers:
- Torque Strut Motor Mount: Rear, 1 Piece (10460922) – $29.99
- Gearbox Crossmember Pad Bushing (12542237) – $69.99
- Transmission Mount: Rear, 1 Piece (10460884) – $81.99
What’s the price range for 2021 Subaru WRX STI Transmission Parts?
Transmission Part prices for the 2021 Subaru WRX STI start at $2.00 and go up to $81.99 for the most premium parts.
What’s the average price of a Transmission Part for a 2021 Subaru WRX STI?
The average price for Transmission Parts for the 2021 Subaru WRX STI is $34.11. 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 Subaru WRX STI model years?
What are the cheapest Transmission Parts for my 2021 Subaru WRX STI?
The cheapest 2021 Subaru WRX STI Transmission Parts we carry in stock are:
- Oil Drain Plug Gaske (11470778) – $2.00
- MT Output Shaft Seal (12615829) – $9.65
- Drive Axle Seal (12025505) – $11.06
- Torque Strut Motor Mount: Rear, 1 Piece (10460922) – $29.99
- Gearbox Crossmember Pad Bushing (12542237) – $69.99
What types of Transmission Parts do you sell for my 2021 Subaru WRX STI?
As of 2/5/25, these are some of the most in-demand types of Transmission Parts for a 2021 Subaru WRX STI:
Can I get help with 2021 Subaru WRX STI Transmission Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Subaru Transmission Parts and more.
What is your return policy for Subaru WRX STI Transmission Parts?
Advance Auto Parts keeps returns simple. For new Subaru WRX STI Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
