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Radiator Caps

A bad radiator cap may cause a bunch of problems in your engine, including overheating, so you need to replace it as soon as possible. Good thing you can get a high-quality replacement radiator cap right here at CarParts.com. Our radiator caps are manufactured by leading names in the aftermarket industry so you can be sure of their durability and quality. Shop for a new radiator cap now and enjoy our fast shipping and round-the-clock customer service, too.
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Radiator Cap, Plastic, Attaches To Expansion/Overflow Tank, Threaded Filler Neck
Part Number: REPB161801
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Notes : Attaches to Expansion/Overflow Tank; Threaded filler neckRecommended Use : OE ReplacementMaximum Pressure : 30 lbs.
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Radiator Cap - Round, 22 lbs., Blue, Plastic, Sold individually
Part Number: REPA162001
Vehicle Info Required to Guarantee Fit
$6.50
Product Details
Notes : Threaded filler neckRecommended Use : OE ReplacementMaximum Pressure : 22 lbs.
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6-Piece Kit Radiator, 2.5L/2.8L/3.0L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir, Radiator Cap, Radiator Hoses, and Thermostat
Part Number: KIT-052623-34
Vehicle Info Required to Guarantee Fit
$199.99
Product Details
Notes : Radiator Hose - With Quick Connect Fitting; Thermostat - Includes housing; Plastic housing; Blade type; 2-prong male terminal; Coolant Reservoir - Without cap; Radiator Cap - Attaches to Expansion/Overflow Tank; Threaded filler neckCore Dimensions : 22.81 x 17.63 x 1.25 in. Core SizeComponents : (1) Coolant Reservoir, (1) Radiator, (1) Radiator Cap, (2) Radiator Hose, and (1) Thermostat
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6-Piece Kit Cooling System Service, includes Coolant Reservoir, Fan Clutch, Radiator Cap, Radiator Fan Blade, Thermostat Housing, and Water Pump
Part Number: KIT-081017-31
Vehicle Info Required to Guarantee Fit
$135.99
Vehicle Fitment
  • 2001 - 2005 BMW 330xi Base 6 Cyl 3.0L
  • 2001 - 2006 BMW 325Ci Base 6 Cyl 2.5L
  • 2001 - 2005 BMW 325xi Base 6 Cyl 2.5L
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Product Details
Components : (1) Coolant Reservoir, (1) Fan Clutch, (1) Radiator Cap, (1) Radiator Fan Blade, (1) Thermostat Housing, and (1) Water PumpWarranty : 1-year DriveMotive unlimited-mileage warrantyQuantity Sold : Kit
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5-Piece Kit Radiator Fan - Includes Radiator, Radiator Cap, Radiator Fan, Radiator Support, and Radiator Support Cover
Part Number: KIT-060817-21
Vehicle Info Required to Guarantee Fit
$410.99
Vehicle Fitment
  • 2009 - 2012 Audi A4 Base 4 Cyl 2.0L
  • 2009 - 2012 Audi A4 Quattro Avant 4 Cyl 2.0L
  • 2009 - 2012 Audi A4 Quattro Base 4 Cyl 2.0L
Product Details
Notes : Cooling Fan Assembly - Does not include module; Radiator Cap - Threaded filler neck; Radiator Support Cover - Grille upper coverComponents : (1) Radiator, (1) Radiator Cap, (1) Radiator Fan, (1) Radiator Support, and (1) Radiator Support CoverType : Radiator Fan
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Radiator with Radiatior Cap, 1.4L/1.8L/2.0L/2.5L Engines, Plastic Tank
Part Number: KIT-020117-41
Vehicle Info Required to Guarantee Fit
$93.49
Product Details
Core Dimensions : 25.5 x 17.25 x 1.25 in. Core SizeComponents : (1) Radiator and (1) Radiator CapAutomatic Transmission Cooler : Without Transmission Cooler
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3-Piece Kit Radiator, 2.0L Engine, Aluminum Core, Plastic Tank, includes Cooling Fan Assembly and Radiator Cap
Part Number: KIT-060817-50
Vehicle Info Required to Guarantee Fit
$262.99
Product Details
Core Dimensions : 28.38 x 18.44 x 1 in. Core SizeComponents : (1) Radiator, (1) Radiator Cap, and (1) Radiator FanAutomatic Transmission Cooler : With Transmission Cooler
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Radiator Kit, 3.0L/3.2L/3.6L/4.2L/4.5L/4.8L/5.0L Engines, Aluminum Core, Plastic Tank, includes Radiator Cap
Part Number: KIT-021417-27
Vehicle Info Required to Guarantee Fit
$132.49
Product Details
Core Dimensions : 27.94 x 21.56 x 1.56 in. Core SizeComponents : (1) Radiator and (1) Radiator CapAutomatic Transmission Cooler : Without Transmission Cooler
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6-Piece Kit Radiator with Coolant Reservoir, Radiator Cap, Radiator Hoses, and Thermostat, E90 Body, Non-Turbo, Except SULEV Models
Part Number: KIT-052623-35
Vehicle Info Required to Guarantee Fit
$200.99
Product Details
Notes : Radiator - Automatic transmission; This Radiator does not replace units with emission sensor in core; Please measure your Radiator size before ordering.; Thermostat - Includes housing and sensor; Blade type; 2-prong male terminal; Coolant Reservoir - Without cap; Radiator Cap - Attaches to Expansion/Overflow Tank; Threaded filler neckCore Dimensions : 25.63 x 18 x 1.25 in. Core SizeComponents : (1) Coolant Reservoir, (1) Radiator, (1) Radiator Cap, (2) Radiator Hose, and (1) Thermostat
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RC85 GM Original Equipment Series Radiator Cap - Round, 15 lbs., Black, Plastic, Sold individually
Part Number: ACRC85
Vehicle Info Required to Guarantee Fit
$15.49
Product Details
Notes : 15 psi radiator capRecommended Use : OE ReplacementMaximum Pressure : 15 lbs.
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RC98 GM Original Equipment Series Radiator Cap - Round, 15 lbs., Black, Plastic, Sold individually
Part Number: ACRC98
Vehicle Info Required to Guarantee Fit
$13.99
Product Details
Notes : Use together with surge tank 15848518; 15 psi dual O-ringRecommended Use : OE ReplacementMaximum Pressure : 15 lbs.
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10234 Radiator Cap - Round, 18 lbs., Polished, Steel, Sold individually
Part Number: ST10234
Vehicle Info Required to Guarantee Fit
$20.99
Product Details
Recommended Use : OE ReplacementMaximum Pressure : 18 lbs.Material : Steel
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10242 Radiator Cap - Round, 16 lbs., Polished, Steel, Sold individually
Part Number: ST10242
Vehicle Info Required to Guarantee Fit
$21.49
Product Details
Recommended Use : OE ReplacementMaximum Pressure : 16 lbs.Material : Steel
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RS518 Motorcraft OE Replacement Radiator Cap - Black, Plastic, Sold individually
Part Number: MIRS518
Vehicle Info Required to Guarantee Fit
$17.99
Product Details
Recommended Use : OE ReplacementMaterial : PlasticColor Finish : Black
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4540 Radiator Cap - Steel, Sold individually
Part Number: CSF4540
Vehicle Info Required to Guarantee Fit
$5.99
Product Details
Recommended Use : OE ReplacementMaterial : SteelProduct Fit : Direct Fit
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Page 1 of 12 | Showing 1 - 15 of 168 results

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Perfect fit, functions great.
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