Heating and Cooling› Oil and Fluid Coolers

Mishimoto

19-Row Oil Cooler Kit

$706.95

SKU: MMOC-WRX-15KB

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mishimoto oil cooler kit is a direct-fit solution for the 2015-2021 Subaru WRX. The kit works in conjunction with the stock liquid-to-liquid oil cooler to maintain optimal oil temperature.

This full bolt-on kit features a 19-row oil cooler strategically mounted in the lower grille for maximum airflow. It includes a billet aluminum thermostatic oil sandwich plate and a CNC-machined aluminum spacer for proper oil filter clearance. The kit also comes with preassembled stainless steel braided oil lines with -10AN fittings.
Show original supplier description
The Mishimoto oil cooler kit provides a direct-fit solution designed specifically for the 2015-2021 Subaru WRX, addressing the limitations of the stock liquid-to-liquid oil cooler during prolonged aggressive driving or track use. This kit is engineered to work alongside the factory cooler, ensuring optimal oil temperatures and extending the life of your high-performance FA20 DIT engine. This comprehensive kit features a substantial 19-row oil cooler, strategically positioned in the lower grille for maximum airflow. Installation is facilitated by robust, application-specific brackets. A key component is the billet aluminum thermostatic oil sandwich plate, which allows oil to reach its optimal operating temperature efficiently. The kit includes pre-assembled stainless steel braided oil lines equipped with -10AN fittings, ensuring a secure and efficient flow of oil to and from the cooler. Installation is rated at medium difficulty and requires no modification to the vehicle. The kit includes 9 parts and bypasses the stock liquid-to-liquid heat exchanger with silicone hoses. The oil capacity is increased by 0.75 qt, and a proven temperature drop of 20°F (11.1°C) can be achieved with minimal pressure loss. The Mishimoto oil cooler kit comes with the Mishimoto Lifetime Warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMishimoto
Part NumberMMOC-WRX-15KB
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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