Description
The Mishimoto MMOC-WRX-08BK is a direct-fit, black-finish oil cooler kit engineered specifically for the 2008-2014 Subaru WRX and its EJ255 flat-four engine. Built around a 19-row bar-and-plate cooler core, this Black Cooler, Non-Thermostatic configuration is rated to deliver a proven 25°F (13.9°C) drop in oil temperature. It’s a genuine bolt-on solution — no modification necessary for installation — using application-specific brackets and working alongside your WRX’s factory equipment.
Subaru’s WRX pairs a turbocharged flat-four with a fantastic AWD system, but the factory setup skips a dedicated oil cooler — a gap that matters more once you’ve modified your car or spend time tracking it. This Mishimoto oil cooler closes that gap, letting engine oil shed heat before it builds up and accelerates wear. The 19-row cooler is strategically mounted for maximum airflow near the front bumper/grille, and a CNC-machined aluminum spacer creates clearance for the oil sandwich plate while keeping the factory exhaust manifold heat shields in place. Preassembled stainless steel braided lines with -10AN fittings and a thermal reflective wrap that deflects radiant heat from the exhaust round out a full bolt-on oil cooling solution for street and track cars. This kit is engineered to work in conjunction with your WRX’s stock liquid-to-liquid heat exchanger, retaining that unit for proper fluid warm-up while adding true oil-to-air cooling capacity, plus a 0.75-quart increase in oil capacity.
Vehicle Applications
This Mishimoto oil cooler kit is a direct fit for the 2008-2014 Subaru Impreza WRX, including the 2010 WRX GT and WRX SE, the 2010-2014 WRX Limited, and the 2009-2014 WRX Premium. It also fits the 2012-2014 Subaru WRX Base, 2013-2014 WRX Limited, 2014 WRX SE, and 2012-2014 WRX STI. Coverage spans chassis codes GH, GE, GR, and GV, built around the EJ255 engine.
Features
- Direct fit for the 2008-2014 Subaru WRX with no modification necessary for installation
- 19-row bar-and-plate oil cooler strategically mounted for maximum airflow
- CNC-machined application-specific aluminum sandwich plate spacer clears the factory exhaust manifold heat shields
- Preassembled stainless steel braided lines with -10AN fittings
- Includes thermal reflective wrap to deflect radiant heat from the exhaust
- Works in conjunction with the stock liquid-to-liquid heat exchanger, retaining that unit for proper fluid warm-up and regulation
- Increases oil capacity by 0.75 qt
- Black, anodized finish with Performance-grade Bar-and-Plate core construction
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMOC-WRX-08BK
- Option: Black Cooler, Non-Thermostatic
- Color/Finish: Black, Anodized
- Core Type: Bar-and-Plate
- Grade Type: Performance
- Core Row Quantity: 19
- Core Height: 5.43 in
- Core Thickness: 1.97 in
- Core Width/Length: 11 in
- Inlet/Outlet Fitting Type: AN Flare, Male
- Fitting Size: -10AN
- Oil Capacity Increase: 0.75 qt
- Engine Code: EJ255
- Chassis Codes: GH, GE, GR, GV
- Recommended Torque: 15-25 lb-ft for straight fittings and banjo bolts (do not exceed 35 lb-ft)
- Includes: Application-specific mounting brackets and spacer, 19-row oil cooler, 2 ft 11 in stainless steel braided hose with 45-degree and 150-degree -10AN fittings, 3 ft 6 in stainless steel braided hose with 45-degree and 90-degree -10AN fittings, M20 thermostatic sandwich plate, 15mm CNC sandwich plate spacer, application-specific M20 sandwich plate adapter, M20 x -10AN straight fittings, 2 ft of thermal reflective wrap, mounting hardware set, Mishimoto Lifetime Warranty
Frequently Asked Questions
What does the Mishimoto MMOC-WRX-08BK oil cooler kit include?
The kit includes application-specific mounting brackets and spacer, a 19-row oil cooler, a 2 ft 11 in stainless steel braided hose with 45-degree and 150-degree -10AN fittings, a 3 ft 6 in stainless steel braided hose with 45-degree and 90-degree -10AN fittings, an M20 thermostatic sandwich plate, a 15mm CNC sandwich plate spacer, an application-specific M20 sandwich plate adapter, M20 x -10AN straight fittings, 2 ft of thermal reflective wrap, a mounting hardware set, and the Mishimoto Lifetime Warranty.
Which Subaru WRX models does this oil cooler kit fit?
It is a direct fit for the 2008-2014 Subaru Impreza WRX, including the 2010 WRX GT and WRX SE, the 2010-2014 WRX Limited, and the 2009-2014 WRX Premium, as well as the 2012-2014 Subaru WRX Base, 2013-2014 WRX Limited, 2014 WRX SE, and 2012-2014 WRX STI.
How much does this kit reduce oil temperature?
This kit is rated to deliver a proven 25°F (13.9°C) drop in oil temperature.
Does installing this oil cooler kit require any modification to the vehicle?
No, no modification is necessary for installation, and the kit functions with all stock equipment.
What torque specification should be used for the fittings and banjo bolts?
The recommended torque specification for all straight fittings and banjo bolts is 15-25 lb-ft, and the maximum torque rating of 35 ft-lb should not be exceeded.
Does this kit come with a warranty?
Yes, this kit includes the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
