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Replacement and OEM Parts for 2008 Cadillac STS Thermostat

2008 Cadillac STS Thermostat

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2008 Cadillac STS
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9 Products found

2 Q&A for Thermostat Repair
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  • OEM 2008 Cadillac STS Thermostat Diagram - 12559807
    View Related Parts

    OEM (Genuine) 2008 Cadillac STS Thermostat

    PartNumber: 12559807
    OEM 2008 Cadillac STS Thermostat - 12559807
    Product Specifications
    • Notes: Sts; 4.6 Liter, W/O Trailer Pkg; 4.6 Liter, W/Trailer Pkg
    • Other Names: Thermostat
    • Item Dimensions: 3.2 x 3.1 x 3.2 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 3531407, 12555811, 12554784
    • Part Description: 2008 Cadillac STS Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | Base, Platinum | 8 Cyl 4.6 L GAS
    $46.48 MSRP: $87.72
    You Save: $41.24 (48%)
  • Gates Premium Engine Coolant Thermostat for 2008 Cadillac STS - 34163S

    Gates® Premium Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 34163S
    Product Specifications
    • Notes: Excludes Housing; 180 Degree; OE Temperature; Seal included
    • By-Pass Flange Diameter: 1.5
    • Design: Bottom By-Pass
    • Height: 2.74
    • Height Between Flanges: 1.88
    • Height from Flange: .86
    • Includes Installation Tool: Yes
    • Jiggle Pin Weep Hole: Yes
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • Seal Type: O-Ring
    • Sealing Flange Outside Diameter: 1.66
    • Start to Open Temperature: 180; 82
    • UPC: 770075745341
    • Part Description: 2008 Cadillac STS Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 6 Cyl 3.6L
    $27.85
  • OEM 2008 Cadillac STS Thermostat Diagram - 12601556
    View Related Parts

    OEM (Genuine) 2008 Cadillac STS Thermostat

    PartNumber: 12601556
    OEM 2008 Cadillac STS Thermostat - 12601556
    Product Specifications
    • Notes: Sts-V; 4.4 Liter
    • Other Names: Thermostat
    • Item Dimensions: 4.3 x 4.3 x 4.3 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2008 Cadillac STS Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | V | 8 Cyl 4.4 L GAS
    $23.10 MSRP: $43.60
    You Save: $20.50 (48%)
  • Gates Oe Type Engine Coolant Thermostat for 2008 Cadillac STS - 33808

    Gates® Oe Type Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 33808
    Product Specifications
    • Notes: 180 Degree; OE Temperature; Seal Included
    • By-Pass Flange Diameter: 1.37"
    • Depth from Flange: 2.2"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.12"
    • Height from Flange: 0.8"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: Yes
    • Material: Steel, Brass, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 1
    • OE Comparison Rating: OE Performance
    • Seal Type: O-Ring
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 3"
    • Type: OE Type Thermostat
    • UPC: 072053061802
    • Part Description: 2008 Cadillac STS Oe Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.6L
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.4L
    $21.04
  • Gates Premium Engine Coolant Thermostat for 2008 Cadillac STS - 33808S

    Gates® Premium Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 33808S
    Product Specifications
    • Notes: 180 Degree; OE Temperature
    • By-Pass Flange Diameter: 1.2
    • Design: Bottom By-Pass
    • Height: 2.42
    • Height Between Flanges: 1.72
    • Height from Flange: .7
    • Includes Installation Tool: No
    • Jiggle Pin Weep Hole: Yes
    • Material: Stainless Steel, Copper
    • Number of Gaskets: 0
    • Number of Jiggle Pins/Check Valves: 1
    • Number of Seals: 0
    • Sealing Flange Outside Diameter: 2.52
    • Start to Open Temperature: 180; 82
    • UPC: 770075745464
    • Part Description: 2008 Cadillac STS Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.6L
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.4L
  • STANT OE Type Engine Coolant Thermostat for 2008 Cadillac STS - 14228

    STANT® OE Type Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 14228
    Product Specifications
    • Notes: Temperature 180 Degrees; Seal Included Seal Included; OE Temperature
    • Bypass Plate Diameter: 1.375"
    • Flange Diameter (With Seal): 2.28"
    • Flange Diameter (Without Seal): 2.125"
    • Height from Flange to Bottom: 1.975"
    • Height from Flange to Top of Bridge: 0.75"
    • OE Part Number: 12554784, 12555811, 12601556, 3539154, 12559807, 3531407, 89017649
    • Temperature (F): 180 Degrees
    • UPC: 033342054950
    • Part Description: 2008 Cadillac STS OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.6L
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.4L
  • STANT OE Type Engine Coolant Thermostat for 2008 Cadillac STS - 15148

    STANT® OE Type Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 15148
    Product Specifications
    • Notes: Temperature 180 Degrees; Part Replacement Replaces 46148; Excludes Housing; OE Temperature
    • Bypass Plate Diameter: 1.44"
    • Flange Diameter (Without Seal): 1.64"
    • Height from Flange to Bottom: 1.886"
    • OE Part Number: 12651113, 12638836, 12599235, 12597257, 12620254, 12586468, 12620258, 12574355, 12573977, 12557914, 12570247, 12638184, 12616820, 12652327, 12603830, 12608657, 12631889, 12620259, 12584433, 12597255, 12631895, 12638185, 12620251, 12638893, 12652328, 17690
    • Temperature (F): 180 Degrees
    • UPC: 033342130845
    • Part Description: 2008 Cadillac STS OE Type Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 6 Cyl 3.6L
  • STANT Superstat™ Premium Engine Coolant Thermostat for 2008 Cadillac STS - 46148

    STANT® Superstat™ Premium Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 46148
    Product Specifications
    • Notes: Temperature 180 Degrees; Part Replacement Replaced by 15148; Excludes Housing; OE Temperature
    • Bypass Plate Diameter (in): 1.44
    • Flange Diameter (Without Seal) (in): 1.64
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.886
    • Temperature (F): 180 Degrees
    • UPC: 333421694948
    • Part Description: 2008 Cadillac STS Superstat™ Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 6 Cyl 3.6L
  • STANT Superstat™ Premium Engine Coolant Thermostat for 2008 Cadillac STS - 46228

    STANT® Superstat™ Premium Engine Coolant Thermostat for 2008 Cadillac STS

    PartNumber: 46228
    Product Specifications
    • Notes: Temperature 180 Degrees; OE Temperature
    • Bypass Plate Diameter (in): 1.375
    • Flange Diameter (With Seal) (in): 2.28
    • Flange Diameter (Without Seal) (in): 2.125
    • Freight Class: 70
    • Height from Flange to Bottom (in): 1.975
    • Height from Flange to Top of Bridge (in): 0.75
    • Temperature (F): 180 Degrees
    • UPC: 333421698526
    • Part Description: 2008 Cadillac STS Superstat™ Premium Engine Coolant Thermostat
    More Info
    Vehicle Fitment
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.6L
    • 2008 Cadillac STS | All Trims | 8 Cyl 4.4L

FAQ for Thermostat Repair

Q: What is the recommended torque for the thermostat bolts?
A:
The recommended torque is 10 N.m (89 lb in).
By Bob
GM Specialist
01/11/2022
Q: What should be noticed in the removal procedure for Engine Coolant Thermostat (LY7-Gas, 6 CYL, 3.6L, SFI, V6, Alum)?
A:
You should not separate the upper and lower intake manifolds.
By Bob
GM Specialist
01/11/2022

FAQ for Other Repair Info

Q: What should be noticed when removing Radiator Cap?
A:
To avoid being burned, you should not remove the Radiator Cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if the radiator cap or surge tank cap is removed while the engine and radiator are still hot.
Q: What is the preliminary procedure for the Auxiliary Water Pump (LLT-Gas, 6 Cyl, 3.6L, Sidi, V6, Alum)?
A:
The procedure is to drain the coolant, disengage the auxiliary Water Pump inlet hose from the auxiliary water pump, disengage the auxiliary water pump outlet hose from the auxiliary water pump, disconnect the auxiliary water pump electrical connector, remove the lower fan shroud bolts, push the fan shroud rearward of the vehicle, push the fan shroud rearward of the vehicle, press the auxiliary water pump push-in retainers and pull auxiliary water pump rearward of the vehicle.
Q: How to install Engine Coolant Fan Motor?
A:
The procedure is to install the motor to the shroud, install the Cooling Fan Motor retaining screws, install the fan blade to the motor shaft, rotate the fan until the fan drops onto the shaft, install the fan blade retaining nut to the motor, and install the cooling fan assembly.