Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Silver

SKU: MISMMOC-STI-15T

Fluid Coolers

MM Oil Cooler - Kits - Tstat...

Mishimoto

Mishimoto 15 Subaru STI Thermostatic Oil Cooler Kit - Silver

SKU: MISMMOC-STI-15T

Fluid Coolers

MM Oil Cooler - Kits - Tstat...

Sale ends in Calculating... Wed 14 Oct, 2:07 pm AEST

IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

The Subaru WRX STI provides a great balance of power, handling, and reliability. As with any vehicle, controlling fluid temperatures will ensure consistent power and engine longevity. The Mishimoto Subaru WRX STI Oil Cooler Kit was developed specifically for the 2015 STI and is a great addition to any street or track-driven vehicle. A large 19-row cooler mounts in the front bumper to provide optimal airflow and cooling efficiency. The included direct-fit mounting brackets and preassembled stainless steel lines with -10AN fittings will ensure an easy and hassle-free installation. This cooler is proven to reduce oil temperatures by 20+ degrees Fahrenheit (16+degrees Celsius) degrees while maintaining minimal pressure loss. For further heat protection, this kit includes thermal reflective wrap for the oil lines, providing substantial heat deflection from the nearby exhaust. The Mishimoto Subaru WRX STI Oil Cooler Kit can be customized to meet your needs with either a Stealth Black or Sleek Silver cooler and your choice of the Mishimoto Oil Sandwich Plate or the Mishimoto Thermostatic Oil Sandwich Plate. As with all our products, this kit includes the Mishimoto Lifetime Warranty.

Product Overview

Features and Benefits

20+ F (16+ C) temperature drop
Minimal pressure loss
Direct fit for the 2015-2021 STI
This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
Sleek Silver or Stealth
Black cooler options
Thermostatic option available
Easily replaceable thermostat allows you to customize your fluid temperature
Additional thermostats available in 160Â°F, 185Â°F, and 200Â°F
Mishimoto Lifetime Warranty

Product Details

Alternate Part Number:	MMOC-STI-15T
Color:	Silver
Description:	Subaru WRX STI Oil Cooler Kit
Finish:	Painted
Install Difficulty:	3
Installation Difficulty:	3/5
Material:	Aluminum
OptionLabel:	Silver Cooler, Thermostatic
Part Number:	misMMOC-STI-15T
SellingPoint01:	20 F (16 C) temperature drop
SellingPoint02:	Minimal pressure loss
SellingPoint03:	Direct fit for the 2015+ STI
SellingPoint04:	This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
SellingPoint05:	Sleek Silver or Stealth
SellingPoint06:	Black cooler options
SellingPoint07:	Thermostatic option available
SellingPoint08:	Mishimoto Lifetime Warranty
SellingPoint09:	N/A
SellingPoint10:	N/A
SellingPoint11:	N/A
SellingPoint12:	N/A
SellingPoint13:	N/A
SellingPoint14:	N/A
SellingPoint15:	N/A
TechSpec Applications:	N/A
TechSpec Caution:	It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, contact our customer experience team.
TechSpec Chassis Codes:	VA
TechSpec Core Construction:	N/A
TechSpec Core Height (in):	5.43
TechSpec Core Length (in):	11
TechSpec Core Thickness (in):	1.97
TechSpec Engine Codes:	EJ257
TechSpec Fluid Capacity (qts):	N/A
TechSpec Includes:	Application-Specific Mounting Brackets--19-Row Oil Cooler--3.5-ft Stainless Steel Braided Hose with 150 -10AN Fittings--4-ft Stainless Steel Braided Hose with 90 and 150 -10AN Fittings--M20 Sandwich Plate--M20 Stainless Steel Sandwich Plate Adapter--M20 x -10AN Straight Fittings--Mounting Hardware Set--Mishimoto Lifetime Warranty
TechSpec Inlet:	N/A
TechSpec Installation Notes:	Recommended torque specification for all straight fittings and banjo bolts: 15-25 lb-ftDo not exceed the maximum torque rating of 35 ft-lb
TechSpec Note:	Recommended torque specification for all straight fittings and banjo bolts: 15-25 ft-lbDo not exceed the maximum torque rating of 35 ft-lb.----This oil cooler kit will only work with models with the single scroll turbo and un-equal length exhaust manifold. Models with a twin scroll turbo and equal length exhaust manifold may not be compatible with this oil cooler kit.----It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure
TechSpec Outlet:	N/A
TechSpec Overall Height (in):	N/A
TechSpec Overall Length (in):	N/A
TechSpec Overall Width (in):	N/A
TechSpec Rows:	19

Application Summary

2015 Subaru WRX STI Base 2.5 Liter TY856, 2015 Subaru WRX STI Launch Edition 2.5 Liter TY856, 2015 Subaru WRX STI Limited 2.5 Liter TY856

Part Type

Engine Oil Cooler

Data: v4.2 - Upd: 2026-10-13 18:11:17

Features

20 F (16 C) temperature drop
Minimal pressure loss
This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit

Specifications

Product Attributes - UPC: 748354015799
Product Attributes - Brand: Mishimoto
Product Attributes - Part Type: Fluid Coolers
Product Attributes - Product Line: Mishimoto Oil Cooler Kits
Product Attributes - Manufacturer's Part Number: MMOC-STI-15T

Reference Information

Brand Name/s	Mishimoto
StreetFX SKU	misMMOC-STI-15T
SFX Item ID	4050205
Supplier Item Code	4050205
Manufacturer SKU	MMOC-STI-15T
Manufacturer UPC	748354015799
Alternative References	mio-mmoc-sti-15t, MIMMMOC-STI-15T