OEM Pontiac Grand Prix Radiator Cap

Cooling Radiator Cap

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6 Radiator Caps found

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Pontiac Grand Prix Radiator Cap Part Number: 15042975
$10.21 MSRP: $20.28
You Save: $10.07 (50%)
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Product Specifications
- Other Name: Cap, Radiator Tank; Reservoir Cap; Filler Cap
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2008 Pontiac Grand Prix | Base, GT, GT1, GT2, GTP, GXP | 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS
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Pontiac Grand Prix Radiator Cap Part Number: 25730158
$10.72 MSRP: $19.13
You Save: $8.41 (44%)
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Product Specifications
- Other Name: Cap, Radiator Tank; Filler Cap
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Pontiac Grand Prix | GT, GTP, SE | 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
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Pontiac Grand Prix Radiator Cap Part Number: 15989074
$12.23 MSRP: $22.82
You Save: $10.59 (47%)
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Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Reservoir Cap; Tank Cap; Recovery Tank Cap; Cap
- Replaces: 15695491, 14094966
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 Pontiac Grand Prix | Base, LE, Mclaren, SE, STE | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS
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Pontiac Grand Prix Radiator Cap, Black Part Number: 10409635
$12.08 MSRP: $21.59
You Save: $9.51 (45%)
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Product Specifications
- Other Name: Cap, Radiator Filler *Black; Filler Cap; Cap; Filler, Engine Coolant; Cap, Radiator Tank
- Replaces: 6410785, 06410785, 10283897, 15953298
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2002 Pontiac Grand Prix | Base, GT, GTP, LE, Mclaren, SE, STE | 4 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS, 6 Cyl 3.8 L GAS
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Pontiac Grand Prix Cap Part Number: 10061000
$2.42 MSRP: $3.33
You Save: $0.91 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Radiator Cap
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1991 Pontiac Grand Prix | LE, SE | 4 Cyl 2.3 L GAS
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Pontiac Grand Prix Radiator Cap Part Number: 10049770
Product Specifications
- Other Name: Cap Assembly
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1991 Pontiac Grand Prix | Base, GT, LE, Mclaren, SE, STE | 4 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.4 L GAS

Pontiac Grand Prix Radiator Cap

Want to cut long-term maintenance and repair costs? Choose OEM Radiator Cap. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Pontiac Grand Prix parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Pontiac Grand Prix Radiator Cap 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 Grand Prix Radiator Cap sits at the heart of a car famed for blending style and punchy performance. The Pontiac engineers shaped the Grand Prix to slice through traffic with crisp steering, balanced suspension, and engines that pull hard yet sip fuel on long trips. Inside, the Grand Prix greets drivers with supportive seats, clear gauges, and tech that keeps road trips fun while the bold Pontiac grille still turns heads in any parking lot. The cabin swallows luggage for weekend escapes while its wide stance gives steady confidence in rough weather. Drivers trust the Grand Prix because parts remain available and affordable so every Pontiac fan can keep the legend alive. At the core of the cooling system, the Radiator Cap for the Pontiac Grand Prix seals the radiator, locks in pressure, and shuttles coolant to the overflow tank when heat rises. A healthy Radiator Cap keeps temperature stable, stops boil over, and prevents air pockets that could harm the aluminum heads and block, its spring loaded valve opens at the perfect pressure to send excess fluid to the reservoir then draws it back as the engine cools. It also saves money by reducing coolant loss, so replacing a tired Radiator Cap is cheap insurance for long engine life. Installation is simple, cool engine, wrap old Radiator Cap with cloth, twist off, clean neck, press lock new cap, run engine, check leaks.