How to replace the thermostat in a 4.3 L engine on GMC Jimmy?

A 4.3 l engine Thermostat replacement begins with draining part of the cooling system. Begin by removing the air cleaner outlet duct before you unscrew throttle body bracket nuts to shift the bracket into position. Detach the water outlet housing from the lower Intake Manifold while removing its mounting bolts. Place the water outlet housing aside for now. Bring out the Thermostat along with gasket or o-ring before you clean all joining surfaces between the water outlet housing and lower Intake Manifold. Inspect all components and sealing areas before putting them together in order to block leaks between parts. Put the Thermostat and a new gasket or o-ring into position before installing the water outlet housing onto the lower Intake Manifold while following the fastener notice in service precautions. Mount the water outlet housing bolts securely at 19 nm torque setting (14 ft. Lbs.) before reattaching the throttle body bracket using nuts tightened to 10 nm (89 inch lbs.). Complete the cooling system fluid operation and conduct a check for all leakages.

OEM GMC Jimmy Thermostat

Engine Coolant Thermostat

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GMC Jimmy Thermostat Unit
Part Number: 24505924
$23.98 MSRP: $47.60
You Save: $23.62 (50%)
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Product Specifications
- Other Name: Thermostat Assembly-Engine Coolant (W/Gasket); Thermostat; Thermostat, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Jimmy | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy Thermostat
Part Number: 12632948
$29.24 MSRP: $54.92
You Save: $25.68 (47%)
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Replaces: 12257859, 12563335, 12557859, 12597583, 12551472
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2001 GMC Jimmy | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy Thermostat
Part Number: 10190925
$14.31 MSRP: $26.88
You Save: $12.57 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Replaces: 10147886, 10190927
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Jimmy | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy Thermostat
Part Number: 14077122
$51.94 MSRP: $103.08
You Save: $51.14 (50%)
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Product Specifications
- Other Name: Thermostat Assembly-Engine Coolant; Thermostat, Engine Coolant Temperature; Thermostat, Radiator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1987 GMC Jimmy | Base, High Sierra, Sierra Classic | 8 Cyl 6.2 L DIESEL
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GMC Jimmy Thermostat
Part Number: 10207373
$11.50 MSRP: $20.54
You Save: $9.04 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 GMC Jimmy | Base, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
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GMC Jimmy Thermostat
Part Number: 3041390
Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1991 GMC Jimmy | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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GMC Jimmy Thermostat Housing
Part Number: 23502517
Product Specifications
- Other Name: Housing-Engine Coolant Thermostat; Thermostat Housing Cover; Housing, Engine Coolant Thermostat; Housing, Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1990 GMC Jimmy | Base, High Sierra, Sierra Classic | 8 Cyl 6.2 L DIESEL

GMC Jimmy Thermostat

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GMC Jimmy Thermostat Parts Questions & Experts Answers

Thermostat
12632948
Q: How to replace the thermostat in a 4.3 L engine on GMC Jimmy?
A: A 4.3 l engine Thermostat replacement begins with draining part of the cooling system. Begin by removing the air cleaner outlet duct before you unscrew throttle body bracket nuts to shift the bracket into position. Detach the water outlet housing from the lower Intake Manifold while removing its mounting bolts. Place the water outlet housing aside for now. Bring out the Thermostat along with gasket or o-ring before you clean all joining surfaces between the water outlet housing and lower Intake Manifold. Inspect all components and sealing areas before putting them together in order to block leaks between parts. Put the Thermostat and a new gasket or o-ring into position before installing the water outlet housing onto the lower Intake Manifold while following the fastener notice in service precautions. Mount the water outlet housing bolts securely at 19 nm torque setting (14 ft. Lbs.) before reattaching the throttle body bracket using nuts tightened to 10 nm (89 inch lbs.). Complete the cooling system fluid operation and conduct a check for all leakages.