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Mishimoto M22 X 1.5 Sandwich Plate with Rear-Mounted Thermostat

Mishimoto M22 X 1.5 Sandwich Plate with Rear-Mounted Thermostat
Mishimoto M22 X 1.5 Sandwich Plate with Rear-Mounted Thermostat
Mishimoto M22 X 1.5 Sandwich Plate with Rear-Mounted Thermostat
Mishimoto M22 X 1.5 Sandwich Plate with Rear-Mounted Thermostat

Regular Price: $189.28

Sale Price $160.95

Installation Difficulty


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  • Constructed from billet 6061 CNC-machined aluminum
  • Two 1/8" NPT ports for sensors, oil feeds, etc
  • Built-in thermostat (185°F, 85°C)
  • Square O-ring design for superior sealing
  • M22 X 1.5 thread pitch fits numerous Ford and GM engines; see tech specs for specific details
  • Thermostat is interchangeable with alternate temperatures (160°F, 200°F) for additional fluid temperature regulation
  • Mishimoto Lifetime Warranty

Whether you have a daily driven Vette or a built Mustang, proper oil temperatures are crucial for engine longevity and performance. Keep temperatures in check with the Mishimoto M22 X 1.5 Oil Sandwich Plate with Rear-Mounted Thermostat. This high-flow sandwich plate is constructed from lightweight CNC-machined billet 6061 aluminum, providing unmatched precision and quality. The internal oil thermostat will restrict flow to the heat exchanger until the activation temperature is reached; this provides improved warm-up while maintaining efficient cooling properties. Thanks to a small footprint and rear-mounted thermostat, this sandwich plate can be installed in even the tightest engine bays where the exhaust or other engine components create strict space constraints. The sandwich plate includes two 1/8" NPT ports for use with temperature or pressure sensors. The included M22 X 1.5 sandwich plate adapter allows for fitment on various GM LSX vehicles and Ford V8's including the 4.6L, 5.4L, and Coyote 5.0L. For more specific fitment information, check our tech specs above! As with all our products, this sandwich plate includes the Mishimoto Lifetime Warranty

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



Material 6061 Aluminum

Install Torque Specs Recommended torque specification for all straight fittings and banjo bolts: 15-25 ft/lbs (operating range). Do not exceed the maximum torque rating of 35 ft/lbs.

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

Overall Height 3.19"

Overall Length 2.8"

Overall Width 1.18"

Port Sizes (2) 1/8" NPT Ports
(2) M20 x 1.5 Ports

Purchase Includes (1) Oil Sandwich Plate
Rubber O-ring
Built-in Thermostat (185°F / 85°C)
Stainless Steel Sandwich Plate Adapter, M22 x 1.5
(2) Black 1/8" NPT Plugs
Mishimoto Lifetime Warranty

Also Fits 2008+ Chrysler/Dodge V8 Engines
1992+ Ford/Lincoln/Mercury 4.6L, 5.0L, 5.4L V8 Engines
1995+ Ford/Lincoln/Mercury 2.5L Engine
1995+ Ford/Lincoln/Mercury 3.0L (24V) Engine
1984-1987 Honda Civic / CRX
1986-1987 Acura Integra
1999+ Ford 6.8L V10 Engine


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