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Cosworth High Volume/Pressure Oil Pump Kit ( Part Number:COS1 20001185)

Cosworth High Volume/Pressure Oil Pump Kit

Part #: COS1 20001185



Brand: Cosworth
Increased Pressure Over Stock: Yes
Increased Volume Over Stock: Yes

Mfgr. Warranty: No Warranty
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 Direct is proud to provide you with a great selection of Cosworth components. Cosworth has over 50 years of racing heritage and expertise and continue to develop high-performance products that can sustain the perils of motorsports. 

On this page, you are looking at the Cosworth High-Volume/Pressure Oil Pump Kit. This oil pump has been designed to provide an increased volume of oil to help prevent engine failure under high-performance driving conditions. 

Here are the details:

  • Increased volume to help dissipate heat and stabilize oil temperatures
  • Helps prevent bearing damage and engine failure under sustained high RPM use
  • Utilizes a new inner and outer 12mm rotor to increase volume by 20%
  • Ideal for street or race use 


This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:

  • Q: Cosworth HV/P Oil pum kit 20001185 on EJ207?  ricardohinestroza23433 10 months ago


    I will like to know if this kit will fit on a Subaru WRX from 2003 (EJ20 engine). Box only saids EJ25, thanks!

    • A: The blocks all have the same mounting locations however these kits do require you take your block to a machine shop to have the ports machined for 12 mm.

      Tyler A. 10 months ago
  • Q: 2015 STI Fitment?  Subasteve 3 years ago


    What is the compatibility issue with this pump assy. on the 2015 STI or EJ257B?

    • A: While I would imagine this pump will work without any issues on your car, Cosworth has yet to update the confirmed applications list.

      Josh P. 3 years ago
  • Q: Additional materials  jessepettry99116 3 years ago


    Are there other things needed to install this pump? Gaskets, o-rings etc. I have an 05 STI

    • A: You will want to purchase an oil pump to cylinder block O-ring. Beyond that you will reuse OEM hardware.

      Nick S. 3 years ago
  • Q: Daily driver  2014wrbsti 4 years ago


    Would you recommend this oil pump for a daily driver driven hard with some track days

    • A: The OEM pump should be able to handle what you are looking for. This however will move more oil which wont be a bad thing on track.

      guest569faaee2a8d2517038b4568 3 years ago
  • Q: Is this right for my car???  Leon 5 years ago


    I have a 2010 Subaru Legacy 2.5GT...I saw the figure says it's suitable for my car...I just need you to confirm this... and another question is what's the difference between this one and Cosworth Blueprinted Oil Pump w/ High Pressure (Part # COS1 KK3928) except their prices....

    • A: Yes this would be suited to be used on your vehicle. Compared to the other part number, this is higher volume and higher pressure. It has extra machining internally along with some different components to produce the higher volume of flow.

      Kirill C. 5 years ago