Perrin Rear Differential Cover Black ( Part Number:PER1 PSP-SUS-511BK)

Perrin Rear Differential Cover Black

Part #: PER1 PSP-SUS-511BK
MSRP: This Item is no longer available.


Capacity: +30%
Color: Black
Material: Aluminum

Mfgr. Warranty: 5 Years
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee
PERRIN knows it’s important to keep your rear end cool! So keep it cool with the PERRIN Performance Differential Cover. Made from high strength, heat-treated cast aluminum and finished with a durable black powder coating. The diff cover incorporates cooling fins to reduce oil temps, thus extending the life of your expensive differential. Additionally, the oil capacity is increased more than 30% over stock. All combined in a great looking design to positively accentuate your rear end!
This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:

  • Q: Fitment on 2005 STi?  NewShockerGuy 2 years ago


    This is saying on the webpage that it does not fit a 2005 STi? I was under the impression this did work with a 2005 Subaru wrx STi 2.5L? Is there a perrin rear diff cover that fits a 2005 STi?

    • A: This diff cover is for 2008+ model and will not fit the 04-07 models. The correct part for those years is PER1 PSP-DRV-510BK.

      Zach G. 2 years ago
  • Q: GASKET  viera.chris44913 4 years ago


    Does them come with gasket to reinstall and what size are the AN fitting on the side? If this is connected to cooler would I need a pump. Thank you again.

    • A: The OEM differential is sealed with Subaru Three Bond Sealant with gasket, the OEM gasket provides a splash shield to the breather plug. it is ok without, but beware diff oil will leak out from the breather overtime.

      SpeedingSideway 4 years ago