Cosworth Blueprinted Oil Pump w/ High Pressure Mod & Install Kit ( Part Number:COS1 KK3928)

Cosworth Blueprinted Oil Pump w/ High Pressure Mod & Install Kit

Manufacturer Part # KK3928


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High performance engines require additional oil pressure because of the increased demand placed upon various components within the engine. The Cosworth High Pressure Subaru EJ20/EJ25 series oil pump is modified to increase oil pressure helping to ensure superior lubrication. Each pump is carefully inspected and de-burred for unobstructed oil flow. Perfect for high performance daily use Each kit includes all required mounting hardware and seals.
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Brand: Cosworth
Increased Pressure Over Stock: Yes
Increased Volume Over Stock: No
Mfgr. Warranty: No Warranty
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.
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  • Q: everything included?  guest55c8d82bcaae52f460a9c495 2 years ago


    does this come with the tribond and proper seals? Couldn't find the subaru tribond on RSD

    • A: We have the Super Three Bond available as part number SUB 004403007 on the website. This unit comes with O-rings and other seals but does not include the Subaru bond.

      Nick S. 2 years ago
  • Q: Type of pump  gorilla 3 years ago


    ok. factory pump of what year?

    • A: This would be a 04-07 STi oil pump. For 08+ Sti pumps its a different part number from Cosworth.

      Kirill C. 3 years ago
  • Q: Type of pump  gorilla 4 years ago


    this is a 11mm pump like the 08+ bit modifier to provide more pressure?

    • A: This pump is a factory oil pump modified by Cosworth to supply higher pressure to the motor.

      Nick S. 3 years ago
  • Q: Good upgrade   nickWRX 4 years ago


    Is this a good upgrade for a 07 wrx with cobb stage 2 that's daily driven I'm planning on upgrading my timing belt water pump while I'm there should I upgrade my oil pump?

    • A: Unless you are seeing heavy track use typically an upgraded oil pump is not required.

      Nick S. 4 years ago
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