Gates
OE Type Thermostat

Gates 33788 Engine Coolant Thermostat

Brand Gates 33788
Material Stainless steel, copper
Sealing Flange Outside Diameter 2.12
Sealing Flange Outside Diameter 2.13
Height Between Flanges 1.43
Height Between Flanges 1.51
Design Bottom by-pass
Type Oe type thermostat
Height 2.16
Height 2.21
Gasket Quantity 0
Jiggle Pin Weep Hole No
Jiggle Pin Weep Hole Yes
Seal Type O-ring
Start to Open Temperature 180
Start to Open Temperature 82
Installation Tool Included No
Flange Thickness .05
9812 1.45
9813 1.18
9841 1
9852 1
9907 .78
By-Pass Flange Diameter (in) 1.2
Design Bottom by-pass
Height from Flange (in) .78
Includes Installation Tool No
Material Steel, copper
Number of Gaskets 0
Number of Jiggle Pins/Check Valves 0
Number of Seals 1
Product line OE Type Thermostat
Fits Buick, Cadillac, Chevrolet, and Pontiac · 34 vehicles

OE Type thermostat. OEM-equivalent fit with precise temperature control and leak-free sealing.

Bottom by-pass design. Supports efficient coolant flow and stable engine temperature control.

Stainless steel and copper. Durable construction with a rubber O-ring seal for dependable sealing.

Cross-references AMS Automotive 4218, Carlson 14218 and Champion Spark Plug 130 for the same application. See all 17.

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OE Type Thermostat for GM V8 Cooling Control

Gates 33788 is an OE Type Engine Coolant Thermostat built for precise temperature regulation and a leak-resistant seal. It is a direct-fit cooling system service part for select Chevrolet, Pontiac, Buick, and Cadillac applications, including Camaro, Firebird, Corvette, Caprice, Impala, Roadmaster, Fleetwood, and Commercial Chassis models.

Key Features

  • OE Type thermostat construction for OEM-equivalent fit and function
  • 180 degree start-to-open temperature for factory-style coolant control
  • Bottom by-pass design for the listed GM applications
  • Stainless steel and copper construction with rubber O-ring seal
  • Seal included for a leak-free thermostat service
  • OE performance comparison rating
  • Gates part number 33788 for easy catalog matching

Product Details

The Gates OE Type Thermostat line focuses on accurate temperature control and consistent sealing in everyday cooling system service. Part number 33788 uses a bottom by-pass design, an O-ring seal, and OE-style dimensions to match the original thermostat layout in the listed vehicles. This thermostat is specified at 180 degrees and is a direct replacement choice for drivers servicing a 1992-1997 Chevrolet Corvette, 1993-1997 Chevrolet Camaro, or 1993-1997 Pontiac Firebird, as well as other GM full-size and performance applications shown in the fitment data.

This part cross-references Motorad 307-180 for the same application.

What It Helps Address

  • Engine running too cool or too warm
  • Slow warm-up after cold starts
  • Temperature fluctuation from a worn thermostat
  • Coolant seepage at the thermostat sealing surface
  • Cooling system service on a 1992-1997 Chevrolet Corvette or 1993-1997 Chevrolet Camaro

Installation Notes and Tips

Verify the thermostat orientation, by-pass design, and sealing surface before installation. Clean the housing mating surfaces thoroughly and inspect the coolant condition, radiator cap, and hoses while servicing the thermostat. Confirm the application by year, make, model, and engine cooling configuration before ordering Gates 33788.

Quality Assurance

Gates engineers this OE Type Thermostat to provide precise temperature control and an OEM-equivalent fit with leak-free sealing characteristics. The design and materials are selected to match the original service requirements for the listed GM vehicles, including Chevrolet Camaro, Pontiac Firebird, and Chevrolet Corvette applications.

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
1997ChevroletCamaro5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1997PontiacFirebird5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996BuickRoadmaster5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996CadillacCommercial Chassis5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996CadillacFleetwood5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996ChevroletCamaro5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996ChevroletCaprice4.3LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996ChevroletCaprice5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996ChevroletCorvette5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996ChevroletImpala5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1996PontiacFirebird5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995BuickRoadmaster5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995CadillacCommercial Chassis5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995CadillacFleetwood5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995ChevroletCamaro5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995ChevroletCaprice4.3LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995ChevroletCaprice5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995ChevroletCorvette5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995ChevroletImpala5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1995PontiacFirebird5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994BuickRoadmaster5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994CadillacCommercial Chassis5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994CadillacFleetwood5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletCamaro5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletCaprice4.3LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletCaprice5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletCommercial Chassis5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletCorvette5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994ChevroletImpala5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1994PontiacFirebird5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1993ChevroletCamaro5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1993ChevroletCorvette5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1993PontiacFirebird5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
1992ChevroletCorvette5.7LV8GASN/A180 Degree; OE Temperature; Seal included; OE Type Thermostat
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4218Carlson — 14218Champion Spark Plug — 130FEL-PRO — 35218Gates — 33788Motorad — 307-180Motorad — 719-180Motorad — 7307-18012TH10D131-57131-80131-100133-10029218328281022337012555290