OEM Pontiac Bonneville Thermostat

Engine Coolant Thermostat

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6 Thermostats found

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Pontiac Bonneville Thermostat Unit Part Number: 24505924
$28.31 MSRP: $48.56
You Save: $20.25 (42%)
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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:
- 1992-2005 Pontiac Bonneville | SE, SLE, SSE, SSEi | 6 Cyl 3.8 L GAS
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Pontiac Bonneville Thermostat Housing Part Number: 1647540
$11.19 MSRP: $21.01
You Save: $9.82 (47%)
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Product Specifications
- Other Name: Housing E; Thermostat Housing Cover; Water Outlet; Housing, Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Pontiac Bonneville | GXP | 8 Cyl 4.6 L GAS
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Pontiac Bonneville Thermostat Unit Part Number: 24506986
$18.12 MSRP: $34.02
You Save: $15.90 (47%)
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature; Thermostat
- Replaces: 03037747, 10207375, 3037747, 24500253
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1997 Pontiac Bonneville | Base, LE, SE, SSE, SSEi | 6 Cyl 3.8 L GAS
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Pontiac Bonneville Thermostat Part Number: 12559807
$47.41 MSRP: $94.12
You Save: $46.71 (50%)
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Replaces: 12555811, 12554784, 3531407
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Pontiac Bonneville | GXP | 8 Cyl 4.6 L GAS
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Pontiac Bonneville Thermostat Part Number: 3037747
$18.12 MSRP: $34.02
You Save: $15.90 (47%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Thermostat, Engine Coolant
- Replaced by: 24506986
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1991 Pontiac Bonneville | Base, LE, SE, SSE | 6 Cyl 3.8 L GAS
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Pontiac Bonneville 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:
- 1984-1986 Pontiac Bonneville | Base, Brougham, LE | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS

Pontiac Bonneville Thermostat

Want to cut long-term maintenance and repair costs? Choose OEM Thermostat. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Pontiac Bonneville parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Pontiac Bonneville Thermostat includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Pontiac Bonneville Thermostat maintains the engine at its sweet spot to protect power and fuel efficiency. The Pontiac Bonneville is a shining example of a spacious yet athletic sedan, which debuted in 1957 and underwent ten generations that incorporated more powerful V8s, responsive V6 engines and the transition from rear to front wheel drive, making drivers feel balanced while driving and accelerating quickly. Its four and later five speed automatic transmissions provide smooth gear changes, a rigid platform, anti-lock brakes and dual airbags provide safety without reducing excitement. Owners love the way authentic components maintain the hallowed artistry for a well-kept Bonneville to cruise with comfort on highways and glide through city streets with poise of reliability. The model's adaptability to technology makes Pontiac's commitment to durability and everyday practicality makes the Bonneville a smart classic for families and enthusiasts alike. A Thermostat in this context is a small gate in the coolant system that opens or closes in response to wax pellet expansion, allowing just enough coolant to pass through to keep the engine temperature near optimum to keep horsepower ready to go and components from heat stress. Because the Pontiac cooling system was designed for rugged service, the Thermostat needs to be fast acting and seal tightly to factory specifications over generations. Install, cool engine, drain coolant below housing, remove hose and cover, note orientation, fit new Thermostat, gasket, reassemble, refill, bleed air, start car check for leak free operation.