OEM Buick Radiator Cap

Cooling Radiator Cap

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16 Radiator Caps found

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Buick 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
Fits the following Buick Models:
- Enclave | 2008-2017 | Base, Convenience, CX, CXL, Leather, Premium | 6 Cyl 3.6 L GAS
- LaCrosse | 2005-2009 | CX, CXL, CXS, Super | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Reservoir Cap Part Number: 13502353
$9.15 MSRP: $19.64
You Save: $10.49 (54%)
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Product Specifications
- Other Name: Cap Assembly-Radiator Surge Tank; Radiator Cap; Cap; Cap, Engine Coolant Recovery; Cap, Radiator Tank
- Replaced by: 13545896
Fits the following Buick Models:
- Cascada | 2016-2019 | Base, Premium, Sport Touring | 4 Cyl 1.6 L GAS
- Enclave | 2018-2024 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
- Encore | 2013-2022 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
- Encore GX | 2020-2023 | Essence, Preferred, Select | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
- Envision | 2016-2023 | Avenir, Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- LaCrosse | 2010-2019 | Avenir, Base, Convenience, CX, CXL, CXS, Essence, Leather, Preferred, Premium, Sport Touring, Touring | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- Regal | 2011-2017 | Base, CXL, GS, Premium, Sport Touring | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal Sportback | 2018-2020 | Avenir, Base, Essence, GS, Preferred, Preferred II | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
- Regal TourX | 2018-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
- Verano | 2012-2017 | Base, Convenience, Leather, Premium, Sport Touring, Turbo | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick 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
Fits the following Buick Models:
- Century | 2002-2005 | Custom, Limited, Special Edition | 6 Cyl 3.1 L GAS
- LeSabre | 2002-2005 | Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 2002-2005 | Base, Ultra | 6 Cyl 3.8 L GAS
- Regal | 2002-2004 | GS, LS | 6 Cyl 3.8 L GAS
- Rendezvous | 2002-2007 | CX, CX Plus, CXL, CXL Plus, Ultra | 6 Cyl 3.4 L GAS, 6 Cyl 3.5 L GAS, 6 Cyl 3.6 L GAS
- Terraza | 2005-2006 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L GAS
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Buick 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
Fits the following Buick Models:
- Regal | 1988-1991 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS
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Buick Radiator Cap Part Number: 15293434
$12.77 MSRP: $23.11
You Save: $10.34 (45%)
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Product Specifications
- Other Name: Cap, Radiator Tank; Filler Cap
Fits the following Buick Models:
- LaCrosse | 2008-2009 | CX, CXL, CXS, Super | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.3 L GAS
- Terraza | 2006-2007 | CX, CXL | 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Buick Radiator Cap Part Number: 25730221
$13.24 MSRP: $24.86
You Save: $11.62 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cap Assembly-Radiator Surge Tank; Reservoir Cap; Tank Cap; Recovery Tank Cap; Cap; Cap, Engine Coolant Recovery; Cap, Radiator Tank
- Replaces: 25713159, 25723953, 25697430
Fits the following Buick Models:
- Skylark | 1989-1991 | Base, Custom, Gran Sport, Limited, Luxury Edition | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.3 L GAS
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Buick Radiator Cap, Green Line Part Number: 15075118
$13.60 MSRP: $25.54
You Save: $11.94 (47%)
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Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Reservoir Cap; Recovery Tank Cap; Cap; Cap, Radiator Tank
- Replaces: 15066786, 22671020, 22652695
Fits the following Buick Models:
- Enclave | 2016-2017 | Convenience, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Radiator Cap Part Number: 13502509
$11.77 MSRP: $22.11
You Save: $10.34 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cap, Radiator Tank; Reservoir Cap; Filler Cap; Cap; Cap, Engine Coolant Recovery
- Replaces: 92205634
Fits the following Buick Models:
- Enclave | 2011-2015 | Base, Convenience, CX, CXL, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick 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
Fits the following Buick Models:
- Century | 1984-2002 | Custom, Estate Wagon, Limited, Special, T-Type | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
- Commercial Chassis | 1991-1993 | Base | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- Electra | 1984-1990 | Estate Wagon, Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- LeSabre | 1984-2001 | Base, Collector's Edition, Custom, Estate Wagon, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Park Avenue | 1991-2001 | Base, Ultra | 6 Cyl 3.8 L GAS
- Reatta | 1988-1991 | Base | 6 Cyl 3.8 L GAS
- Regal | 1984-2002 | 25th Anniversary Edition, Base, Custom, GNX, Gran Sport, Grand National, GS, GSE, Limited, LS, LSE, Olympic Gold Edition, T-Type | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Rendezvous | 2002 | CX, CX Plus, CXL, CXL Plus | 6 Cyl 3.4 L GAS
- Riviera | 1995-1999, 1985-1993 | Base, Luxury, T-Type | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Roadmaster | 1991-1993 | Base, Estate Wagon, Limited | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Buick Radiator Cap Part Number: 6410785
$12.08 MSRP: $21.59
You Save: $9.51 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cap Assembly-Radiator Filler (Package); Cap, Radiator Filler
- Replaced by: 10409635
Fits the following Buick Models:
- Skyhawk | 1984-1989 | Custom, Limited, SE, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Buick Reservoir Cap Part Number: 14081627
$13.11
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Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Radiator Cap; Reservoir Tank Cap; Recovery Tank Cap; Cap
Fits the following Buick Models:
- Skyhawk | 1984-1989 | Custom, Limited, SE, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Skylark | 1985-1988 | Custom, Limited | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS
- Somerset | 1986-1987 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- Somerset Regal | 1985 | Base, Limited | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
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Buick Reservoir Cap Part Number: 13544913
$4.53 MSRP: $8.50
You Save: $3.97 (47%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cap Assembly-Radiator Surge Tank; Cap; Cap, Engine Coolant Recovery
Fits the following Buick Models:
- Encore GX | 2023-2024 | Avenir, Essence, Preferred, Select, Sport Touring | 3 Cyl 1.2 L GAS, 3 Cyl 1.3 L GAS
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Buick Radiator Cap Part Number: 6410962
Product Specifications
- Other Name: Radiator C; Filler Cap; Cap; Cap, Engine Coolant Recovery; Cap, Radiator Tank
Fits the following Buick Models:
- Century | 1984-1986 | Custom, Estate, Estate Wagon, Limited, Olympia Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
- Electra | 1985 | Limited, Park Avenue | 6 Cyl 4.3 L DIESEL
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Buick Reservoir Cap Part Number: 25631814
Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Radiator Cap; Recovery Tank Cap; Cap
- Replaces: 25553770
Fits the following Buick Models:
- LeSabre | 1991-1999 | Base, Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1991-2001 | Base, Ultra | 6 Cyl 3.8 L GAS
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Buick Reservoir Cap Part Number: 15630112
Product Specifications
- Other Name: Cap, Engine Coolant Recovery; Radiator Cap; Filler Cap; Reservoir Tank Cap; Recovery Tank Cap; Cap
Fits the following Buick Models:
- Century | 1984-1993 | Custom, Estate Wagon, Limited, Special, T-Type | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
- Electra | 1984-1990 | Estate Wagon, Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- LeSabre | 1984-1990 | Collector's Edition, Custom, Estate Wagon, Limited | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
- Regal | 1984 | Base, Limited | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L DIESEL
- Skylark | 1984-1985 | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS
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Buick Radiator Cap Part Number: 10049770
Product Specifications
- Other Name: Cap Assembly
Fits the following Buick Models:
- Regal | 1988-1991 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS

Buick Radiator Cap

Choose OEM Radiator Cap, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsGiant.com, you'll find it easy to get top-quality OEM Buick Radiator Cap. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

The Buick Radiator Cap maintains the appropriate amount of pressure in the cooling system in order to ensure that the engine remains cool even as the external temperature could be very high. In 1903 Buick started its car production, and soon gained popularity of a car that was perceived to be comfortable and silent. There is a touch of that serene tradition in Buick today that is combined with a touch of silent tuning, sophisticated safety features and flowing lines that are modern without losing tradition. The bold Wildcat EV concept demonstrates that Buick will bring its relaxed and high-style into an electric future and can provide drivers with a brand that will transform, but which will continue to be dependable and elegant. Soft touch materials, convenient touch screens, and smart phone integration are some of the recent interiors, and QuietTuning adds additional insulation and active noise cancellation to ensure that conversations are not distorted. A Radiator Cap is a small spring-loaded valve which closes the coolant, prevents boilover and directs unwanted fluid to the overflow tank until it cools down and returns. The Radiator Cap installation is easy in a Buick. Stop on flat areas and wait until the engine cools down. With a heavy cloth cover the old cap, squeeze it, and roll it lazily to bleed the pressure, and then roll it off. Clean the filler neck, check that the pressure rating of the new cap is the same as the owner guide, align the tabs, press downwards and twist until they are locked. Turn the engine on again, check leaks, check tightness with a short drive. The Radiator Cap is also tight, thus enabling the heater to warm the cabin quickly in winter.