Subaru WRX STI Engine Internals

Your One-Stop Shop For Trusted Subaru WRX STI Engine Internals

If you’re in search of Subaru WRX STI Engine Internals aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 9 Engine Internals from top brands with prices ranging from $5.70 to $90.92.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Internals for your Subaru WRX STI. Of the 6 OEM and aftermarket parts brands we carry, some of the most popular are Felpro, National, and Mahle.

And don’t forget to read customer reviews across all Engine Internals categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Internals have to cost top dollar, and we prove it. Browse our top Subaru WRX STI Engine Internals below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Subaru WRX STI Engine Internals

National – Shaft Repair Sleeve (Part No.99166)

Shaft Repair Sleeve

from

$34.99
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft
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Mahle – CLEVITE Main Bearing Set (Part No.A2010248848MAH)

CLEVITE Main Bearing Set

from

$90.92
Clevite is the number one name in replacement engine bearings, delivering on the track and in machine shops around the country. As more and more OE manufacturers shift to aluminum bearings in OE engines, Clevite has introduced a new line of engine bearings designed to be the highest quality replacement bearings in the industry. Clevite BiMetal engine bearings carry on the tradition and reputation that Clevite has built throughout the course of time. Clevite BiMetal engine bearings feature a 100% lead free aluminum silicon bi-metal material, which includes 60% more silicon than the leading competitor’s bi-metal material for better conditioning of journal surfaces. These BiMetal bearings also offer greater wear resistance than the leading competitor’s bi-metal material, as well as greater seizure resistance. Clevite BiMetal bearings feature 100% bored ID’s for precision and surface characteristics and where appropriate – straight shell main bearings utilizing an umbrella groove that allows for superior oil control and improved pressure.

Product Features:
  • Original Equipment Manufacturer
  • Maximum Load-Bearing Capacity
  • Fatigue-Resistant, adaptable
  • Resistant to Wear and Corrosion
  • Advanced Surface Coatings
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Ishino Stone – Crankcase O-Ring (Part No.A1021344788ISH)

Crankcase O-Ring

from

$5.70
Crankcase O-Ring

Felpro – REAR MAIN BEARING SEAL SET (Part No.BS 40666)

REAR MAIN BEARING SEAL SET

from

$19.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Engine Crankshaft Seal (Part No.TCS 46009)

Engine Crankshaft Seal

from

$14.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
  • Includes all the parts necessary to complete the repair unless otherwise noted
  • Includes all the parts necessary to complete the repair unless otherwise noted
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NOK – Crankshaft Seal, OEM (Part No.A8060104473NOK)

Crankshaft Seal, OEM

from

$16.05
Crankshaft Seal, OEM

National – Multi Purpose Seal (Part No.3051N)

Multi Purpose Seal

from

$24.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
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NOK – Crankshaft Seal, OEM (Part No.A8060104474NOK)

Crankshaft Seal, OEM

from

$8.21
Crankshaft Seal, OEM

Driveworks – Crankshaft Seal (Part No.S-710235)

Crankshaft Seal

from

$9.29
Product Features:
  • Brand may vary by location
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Engine Internals Brands You Can Trust For Your Subaru WRX STI

6 trusted brands of Engine Internals line our shelves, ready to help keep your Subaru WRX STI running smooth. Below are some of the most popular brands and their top Engine Internals offerings:

Popular Felpro Engine Internals

Felpro products for the Subaru WRX STI span several categories. Some of the highest-rated Felpro Engine Internals that will fit your Subaru WRX STI are:
Engine Crankshaft Seal
from $14.99
(6)
Engine Crankshaft Seal
Crankshaft Seals
REAR MAIN BEARING SEAL SET
from $19.99
(5)
REAR MAIN BEARING SEAL SET
Crankshaft Seals

Most Purchased Subaru WRX STI Engine Internals from Felpro

When you buy the most frequently purchased Felpro brand Engine Internals, you can be confident it will be the right part for your Subaru WRX STI. Here are the Felpro Engine Internals Advanced Auto customers buy the most:
REAR MAIN BEARING SEAL SET
from $19.99
(5)
REAR MAIN BEARING SEAL SET
Crankshaft Seals
Engine Crankshaft Seal
from $14.99
(6)
Engine Crankshaft Seal
Crankshaft Seals
CLEVITE Main Bearing Set
from $90.92
This product is not rated
CLEVITE Main Bearing Set
Oversized Main Bearings

FAQs for Subaru WRX STI Engine Internals

What are the most purchased Engine Internals for the Subaru WRX STI?

Out of 9 Engine Internals for the Subaru WRX STI, the most popular in our inventory are:
Shaft Repair Sleeve
from $34.99
This product is not rated
Shaft Repair Sleeve
Main Bearing Repair Sleeves
CLEVITE Main Bearing Set
from $90.92
This product is not rated
CLEVITE Main Bearing Set
Oversized Main Bearings
Multi Purpose Seal
from $24.29
This product is not rated
Multi Purpose Seal
Crankshaft Seals