We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
IAG Stage 1 Blueprinted EJ25 11mm Oil Pump (04-21 STI, 02-14 WRX, 05-12 LGT, 04-13 FXT)
The oil pump is quite literally the heart of any engine. Responsible for pumping the oil through the entire engine, it is one of the most critical parts, but often one of the most overlooked.
Subaru EJ25 oil pumps should always be inspected before installation on any engine build. Over the years our experience shows that the OEM oil pumps are inconsistently assembled by the manufacturer. It is very common to find incorrectly torqued hardware and, at times, rotor tolerances that are not within specification. IAG now offers a Stage 1 Oil Pump that has the rotor tolerances, hardware, and pressure relief valve inspected. Each pump is also modified to increase oil pressure which aids in ensuring proper oil delivery. The pump is then assembled by our trained staff, providing you with a product which is ready to install, right out of the box.
Each Stage 1 pump starts as a new OEM Subaru oil pump with 11mm rotors. The pump is completely disassembled and checked for contaminants or debris from the manufacturer. The pump is then ultrasonically cleaned.
During the modification process the OEM Pressure Relief Valve Piston is REM polished, providing a low Ra surface, which reduces the friction of the component, and greatly reduces the chance of the piston galling or sticking in the bore - a problem that is frequently seen even on brand new oil pumps.
The piston is reinstalled and confirmed to operate correctly. The rotors are measured and checked to be within the manufacturer's specification - aka Blueprinted, and installed next. The pump is then put together with a light coating of assembly lube to reduce friction and scuffing and aid in priming on first start up.
Finally, the backing plate is installed. Loctite is added to the hardware, and each piece receives a painted mark after it is correctly torqued.
Features
- 11mm Oil Pump Rotors
- Shimmed and REM Polished Pressure Relief Valve
- Measured, Blueprinted, and Assembled
- Packed with assembly lube
- Ships ready to install with all required hardware
- Designed for Single and Dual AVCS engines
- Great for stock and mildly built (IAG Stage 1) engines used in street cars
- Fits all EJ series Subaru Engines
Includes
- (x1) IAG 11mm Blueprinted Oil Pump
- (x1) Front Crank Shaft Seal
- (x1) Oil Pump O-ring
- (x7) Oil Pump Zinc Plated Bolts
Recommended
- For use with Stock or IAG Stage 1 Engines.
$349.99
SKU
IAG-ENG-2230
IAG (Integrity Auto Group) was established in 2004, initially selling high quality used performance cars. Within a year and a half, IAG sold over 200 Subaru WRX / STI’s. Our clients began requesting us to provide performance products and services for their Subaru’s, which we quickly catered to. IAG extended these services and parts nationally by 2007. Fast forward to 2019, IAG Performance is known as a leader in the automotive performance industry (specifically Subaru) and carries an impeccable reputation among our clients and peers.
Oil Pump Buyers Guide
Can't get yor oil pump to prime?
Oil Pumps, Oil Pressure, and Shimming Subaru Oil Pumps
Vehicle Fitment
- 2004 - 2021 Subaru STI
- 2002 - 2014 Subaru WRX
- 2005 - 2012 Subaru Legacy GT
- 2004 - 2013 Subaru Forester XT
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
| SKU | IAG-ENG-2230 |
|---|---|
| Brand | IAG Performance |