Dorman 902-2055 Coolant Thermostat Housing

In stock
SKU: 591|9022055
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price $24.73
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|9022055
  • Barcode 885484546387

Product Description

This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

  • Ideal replacement - this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
  • Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housings

Detailed Applications

Year Make Model Configuration Positions Application Notes
1978 Chevrolet G10 V8 305 5.0L Cover; wo/Threaded Fitting
1978 Chevrolet G10 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1978 Chevrolet G20 V8 350 5.7L Cover; wo/Threaded Fitting
1978 Chevrolet G20 V8 400 6.6L Cover; wo/Threaded Fitting
1978 Chevrolet G30 V8 305 5.0L Cover; wo/Threaded Fitting
1978 Chevrolet G30 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1978 Chevrolet G30 V8 400 6.6L Cover; wo/Threaded Fitting
1978 GMC G15 V8 305 5.0L Cover; wo/Threaded Fitting
1978 GMC G15 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1978 GMC G25 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1978 GMC G25 V8 400 6.6L Cover; wo/Threaded Fitting
1978 GMC G35 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1978 GMC P35 V8 454 7.4L Cover; wo/Threaded Fitting
1977 Chevrolet G10 V8 305 5.0L Cover; wo/Threaded Fitting
1977 Chevrolet G10 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1977 Chevrolet G20 V8 350 5.7L Cover; wo/Threaded Fitting
1977 Chevrolet G20 V8 400 6.6L Cover; wo/Threaded Fitting
1977 Chevrolet G30 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1977 Chevrolet G30 V8 400 6.6L Cover; wo/Threaded Fitting
1977 GMC G15 V8 305 5.0L Cover; wo/Threaded Fitting
1977 GMC G15 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1977 GMC G25 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1977 GMC G25 V8 400 6.6L Cover; wo/Threaded Fitting
1977 GMC G35 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1977 GMC P35 V8 454 7.4L Cover; wo/Threaded Fitting
1976 Chevrolet G10 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 Chevrolet G20 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 Chevrolet G20 V8 400 6.6L Cover; wo/Threaded Fitting
1976 Chevrolet G30 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 Chevrolet G30 V8 400 6.6L Cover; wo/Threaded Fitting
1976 GMC G15 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 GMC G15 V8 400 6.6L Cover; wo/Threaded Fitting
1976 GMC G25 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 GMC G25 V8 400 6.6L Cover; wo/Threaded Fitting
1976 GMC G25 V8 454 7.4L Cover; wo/Threaded Fitting
1976 GMC G35 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1976 GMC P35 V8 454 7.4L Cover; wo/Threaded Fitting
1975 Chevrolet G10 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 Chevrolet G20 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 Chevrolet G20 V8 400 6.6L Cover; wo/Threaded Fitting
1975 Chevrolet G30 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 Chevrolet G30 V8 400 6.6L Cover; wo/Threaded Fitting
1975 GMC G15 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 GMC G25 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 GMC G25 V8 400 6.6L Cover; wo/Threaded Fitting
1975 GMC G25 V8 454 7.4L Cover; wo/Threaded Fitting
1975 GMC G35 V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1975 GMC P35 V8 454 7.4L Cover; wo/Threaded Fitting
1974 Chevrolet G10 Van V8 350 5.7L; GAS Cover; wo/Threaded Fitting
1974 Chevrolet G10 Van V8 454 7.4L Cover; wo/Threaded Fitting
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Product Specifications

Air Vent (Bleeder Valve): No
Bolts Included: No
Color: Natural
Gasket Or Seal Included: Yes
Housing Neck Angle (°): 80
Material: Metal
Mounting Hole Diameter: 0.313 in
Mounting Hole Quantity: 2
O Rings Included: No
Outside Diameter: 1.375 in
Package Contents: Thermostat Housing with Gasket
Package Quantity: 1
Packaging Type: Box
Thermostat Included: No

OE Numbers

DIRECT OE CROSS
3836209 GENERAL MOTORS