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Mishimoto Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat
Mishimoto Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat
Mishimoto Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat
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Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat

Mishimoto
MISMMTS-WRA-87L
748666007598
Thermostats
20+ Units In Stock - Ships Next Business Day
$ 38.00 $ 34.95
$ 34.95

SKU: MMTS-WRA-87L | UPC: 748666007598

Mishimoto Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat

Mishimoto racing thermostat delivers direct-fit cooling upgrade for Jeep Wrangler 1987-2006 2.5L, 4.0L, 4.2L engines and extensive 1980-1995 GM lineup including Buick Century, Chevy Camaro, C/K trucks, Cadillac DeVille. Opens earlier at 87&deg.C (189&deg.F) versus OEM 195&deg.F for reduced operating temperatures, faster warm-up, and reliable performance during track or towing demands. Maintains pressure while boosting coolant flow to combat heat soak.

Key Features

  • Lower Opening Temperature: Activates at 87&deg.C (189&deg.F) to circulate coolant sooner, dropping peak engine temps by up to 20&deg.F in demanding conditions.
  • Direct OEM Replacement: Matches factory specs for Jeep Wrangler YJ/TJ and GM 3.8L/4.3L/5.0L/5.7L engines with no modifications required.
  • High-Flow Brass Pellet: Stainless steel construction resists corrosion and handles racing pressures for long-term durability.
  • Integrated O-Ring Seal: Eliminates gasket needs, ensuring leak-free installation and consistent sealing under heat expansion.
  • CNC-Machined Housing: Precision billet design optimizes flow dynamics, tested in-house for maximum efficiency.

Product Notes

  • Verify fitment using application guide for exact year/make/model/submodel compatibility.
  • Use high-quality coolant and bleed system properly after install to avoid air pockets.
  • Securely torqued to 8-10 ft-lbs. includes all necessary seals.

Installation Notes

  • Professional installation recommended.
  • Drain coolant, remove OEM thermostat/housing, clean mating surfaces before new install.
  • Compatible with stock hardware. no additional adapters needed for listed fitments.

This Part Fits

Year Make Model Submodel
1987-2006 Jeep Wrangler 2.5L 4.0L 4.2L
1981-1982 Alfa Romeo GTV-6 2.5
1980 American Motors AMX Base
1980-1983 American Motors Concord Base DL Limited
1981-1988 American Motors Eagle Base Limited
1980-1983 American Motors Spirit Base DL GT
1980-1992 Buick Century Base Custom Limited T-Type
1980-1989 Buick Electra Estate Wagon Limited Park Avenue
1980-1990 Buick LeSabre Base Custom Limited Estate Wagon
1980-1987 Buick Regal Base Limited Grand National T-Type
1980-1985 Buick Riviera Base T-Type
1980-1993 Buick Skylark Base Custom Limited Sport
1987-1992 Cadillac Allante Base
1980-1995 Cadillac DeVille Base d'Elegance
1980-1993 Cadillac Eldorado Base Touring
1980-1993 Cadillac Fleetwood Base Brougham
1980-1993 Cadillac Seville Base STS
1985-1994 Chevrolet Astro Base CL CS LT
1980-1986 Chevrolet C10 Custom Scottsdale Silverado
1988-1995 Chevrolet C1500 Cheyenne Silverado 454 SS
1980-1986 Chevrolet C20 Custom Scottsdale Silverado
1980-1992 Chevrolet Camaro Z28 IROC-Z Berlinetta
1980-1993 Chevrolet Caprice Classic LS Brougham
1980-1991 Chevrolet Corvette Base

Why Choose Mishimoto?

  • Proven track record in cooling solutions for off-road and racing applications worldwide.
  • Rigorously dyno and track tested for real-world heat rejection gains.
  • Precision engineering with lifetime warranty against defects.

Frequently Asked Questions

  • Q: Does this fit 1985-1990 Chevy Camaro Z28 or C1500 Silverado?
    A: Yes, direct replacement for 1980-1995 GM V6/V8 engines in Camaro, trucks, and listed models. confirm submodel via application guide.
  • Q: What material is the thermostat pellet and housing?
    A: Brass pellet with stainless steel components in CNC aluminum housing for corrosion resistance and high-pressure operation.
  • Q: What warranty coverage and install time?
    A: Lifetime warranty. installs in 30-45 minutes with basic tools after coolant drain.

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Compact retail box 5.5 x 3.75 x 2.25 inches
  • Weight: 0.45 lbs

Request For Information

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