SKU: 21787439205

Genuine Subaru Fuel Injector Seal (4-Pack)

Sale price$30.60 Regular price$34.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Genuine Subaru Fuel Injector Seal (4-Pack)The Vital Leak Prevention Kit for Side Feed EJ Engines. For the GC8, SF5, and early Liberty, the injector seals are a high fatigue component. Every time the fuel rails are disturbedor simply due to decades of heat soakthese seals lose their ability to compress. Reusing old, flattened seals is the most common cause of "unexplained" lean conditions and fuel odors in the cabin. The Genuine Subaru Injector Seal set is the 100% factory spec solution. We

The Vital Leak-Prevention Kit for Side-Feed EJ Engines.

For the GC8, SF5, and early Liberty, the injector seals are a high-fatigue component. Every time the fuel rails are disturbed—or simply due to decades of heat-soak—these seals lose their ability to compress. Reusing old, flattened seals is the most common cause of "unexplained" lean conditions and fuel odors in the cabin.

The Genuine Subaru Injector Seal set is the 100% factory-spec solution. We provide these as a Set of Four to ensure that your entire fuel rail is refreshed simultaneously, eliminating the risk of a single old seal failing a week after you've finished your service.

Why the Roo Racing Seal Set?

  • Pliable Protection: Sourced fresh from Subaru Japan, these seals have the correct elastomeric properties to expand and seal perfectly against the manifold casting.

  • Tuning Integrity: A leaking injector seal is essentially a "phantom" vacuum leak. By ensuring a perfect seal, you allow your ECU to accurately calculate airflow, resulting in smoother idling and consistent AFRs.

  • Professional Grade: We don’t deal in generic "universal" O-rings. These are the specific Upper/Lower interface seals (OEM 16608AA020) designed for the unique geometry of the early Subaru fuel rail.

Product Specifications

  • Component: Fuel Injector to Manifold Lower Seal

  • Part Number: 16608AA020

  • Quantity: 4 Pieces (Complete engine set)

  • Construction: Fuel-resistant Nitrile-based composite

Fitment & Compatibility

Fits Subaru models equipped with factory Side-Feed Injectors:

  • Subaru Impreza WRX / STI | GC8 (1992–2000)

  • Subaru Forester | SF5 (1997–2002)

  • Subaru Liberty / Legacy | BC, BD, BF (1989–1998)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21787439205

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Alan
Grantham, US
★★★★★ 5
Asurion coverage was worth every penny!
Bought a window AC in 2020 and was offered Asurion coverage at checkout. Paid $39 for the 4 year plan and never expceted it would be worth the money paid. Honestly, never expected to even use it. That said...the AC failed about 2 years later so I made a claim online. The claim went in but required a call to an Asurion rep (very nice guy on the phone). He asked a few questions then told me the claim was approved. Total time to for the entire process was about 15 mins. I had the choice of having it repaired or a refund check. I asked for the refund. An emailed pre-paid UPS label was recieved a few minites later and the guy said they'd mail me a check when the UPS package was received, so I dropped it off at UPS. Three weeks later I had a check in my hand for $399 (the excact cost I paid for the AC unit 2 years before minus taxes paid). Really easy process and quick time to receive the check. The only thing to note is that if you make a purchase like that (large electronic or home appliance)...keep that box and packaging. Luckily I had it all and just popped it back into the box for shipment. Not sure how I would have dealt with that if I hadn't saved the box. Thank you Asurion, for delivering on your promise of quick and easy extended warranty payment. I'll defintely purchase the plan again with my replacement AC!
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Reviewed in the United States on January 20, 2023
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Amazon Customer
Waukegan, US
★★★★★ 5
Best warranty ever.
Outstanding. No questions asked.
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Reviewed in the United States on June 4, 2026
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Christina Hughesman
Birmingham, US
★★★★★ 4
Clean air
I bought it to clean the air in the house took a few days to get it linked to my phone but finally got it working. It’s a little complicated because I didn’t know how to set it but getting better at it. I think it’s a good product.
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Reviewed in the United States on April 10, 2023
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Whitney Puckett
Birmingham, US
★★★★★ 5
Awesome Process
Fast, Easy process which is much appreciated. I was able to work through the process efficiently and will be using them on future purchases. I would highly recommend Asurion to protect your next purchase. Thank you!
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Reviewed in the United States on March 6, 2026
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bacdoc
Whiting, US
★★★★★ 5
Great Customer Service
Honored my protection plan without an issue They issued me a refund for the original cost in which I repurchased the same item. I also purchased the 4 Year Protection Plan again because their customer service is outstanding 👏
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Reviewed in the United States on April 24, 2026

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