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Mishimoto Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat
Mishimoto Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat
Mishimoto Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat
Mishimoto Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat
Mishimoto Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat
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Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat

Mishimoto
MISMMOP-SPTR
748354010831
Oil Filter Blocks
20+ Units In Stock - Ships Next Business Day
$ 188.00 $ 170.95
$ 170.95

SKU: MMOP-SPTR | UPC: 748354010831

Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat - Universal M20x1.5

This thermostatic sandwich plate installs between your oil filter housing and spin-on filter to manage oil flow to heat exchangers on performance vehicles like daily-driven Subarus or built Audi 20V engines. It ensures proper oil temperatures for engine longevity and power output with faster warm-up times and controlled cooling. The compact design works in restricted engine bays near exhaust components.

Key Features

  • CNC-Machined Billet 6061 Aluminum: Provides precision machining lightweight strength and corrosion resistance for reliable daily or track use
  • Rear-Mounted Thermostat: Activates at 160°F (71°C) to block cooler flow during warmup then opens for efficient cooling in tight spaces
  • Compact Footprint: Measures 2.9 x 2.6 x 1.3 inches to fit confined engine bays with exhaust or accessory interference
  • Dual 1/8 NPT Ports: Allows connection of oil temperature or pressure sensors for real-time monitoring
  • Lifetime Warranty: Covers defects in materials and craftsmanship for long-term confidence

Product Notes

  • Compatible with M20x1.5 spin-on oil filters common on Subaru EJ/FA Audi VW Porsche engines
  • Kit includes sandwich plate thermostat O-ring port plugs and mounting hardware
  • Ships ready for installation with no modifications required

Installation Notes

  • Professional installation recommended.
  • Torque oil filter housing bolts to manufacturer specifications during install
  • Uses factory oil filter housing threads and hardware for direct bolt-on fit

This Part Fits

Year Make Model Submodel
2002-2007 Subaru Impreza WRX
2004-2021 Subaru Impreza WRX STI
2004-2013 Subaru Forester XT
2005-2009 Subaru Legacy 2.5 GT
1996-2001 Audi A4 1.8T
1997-2003 Audi A4 2.8 Quattro 30V
1986-1994 Audi 80 20V Quattro
1990-1994 Audi Coupe Quattro 20V
1999-2005 Volkswagen Golf 1.8T MK4
1987-1991 Porsche 944 Turbo S2

Why Choose Mishimoto?

  • Engineered and tested for motorsport and street applications worldwide
  • High-flow design maintains oil pressure while regulating temperatures
  • Direct replacement backed by rigorous quality control

Frequently Asked Questions

  • Q: What oil filter thread does this fit?
    A: Designed for standard M20x1.5 spin-on filters on Subaru WRX STI Forester XT Audi A4 1.8T VW Golf 1.8T and similar engines
  • Q: What is the thermostat activation temperature?
    A: Opens at 160°F (71°C) to retain heat during warmup then allows full flow to cooler
  • Q: What does the lifetime warranty cover?
    A: Defects in materials or workmanship under normal use with registration recommended

Shipping & Handling

  • Method: Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box 7.9 x 6.1 x 2.6 inches
  • Weight: 1.1 lbs product 1.4 lbs shipping

Request For Information

Have questions about Mishimoto Oil Sandwich Plate w/ Rear-Mounted Thermostat? Fill out the form below and we'll get back to you by the next business day.
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