Coolant Reservoir Caps

Is your coolant reservoir cap missing or damaged? Get a durable replacement here at CarParts.com! We carry a wide selection of coolant reservoir caps designed for a wide variety of makes and models. Enjoy competitive pricing on aftermarket parts manufactured by the top brands today. Place your order in just a few clicks, and we’ll ship the parts you need right to your doorstep. Shop now and get the best deal on a coolant reservoir cap today!
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4682828 Coolant Reservoir Cap - Direct Fit
Part Number: 4682828
Vehicle Info Required to Guarantee Fit
$12.99
Product Details
Notes : Use existing hardwareWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCWReplaces OE Number : 4401493Recommended Use : OE ReplacementProduct Fit : Direct Fit
17137516004 APA/URO Parts OE Replacement Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: URO17137516004
Vehicle Info Required to Guarantee Fit
$11.99
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : APA/URO Parts OE ReplacementInterchange Part Number : 603351, 17117639021, V202058, CPE0034, 376738384, 17137516004, 46222, CRB5000S, T65, RC0087, 29607|AReplaces OE Number : 603351, 17117639021, V202058, CPE0034, 376738384, 17137516004, 46222, CRB5000S, T65, RC0087, 29607|AEcomm Landing Page : EuroProduct Fit : Direct Fit
2105010615 APA/URO Parts Coolant Reservoir Cap Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: URO2105010615
Vehicle Info Required to Guarantee Fit
$18.49
Product Details
Warranty : 2-year, unlimited-mileage APA/URO Parts limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : APA/URO Parts Coolant Reservoir CapInterchange Part Number : 0005018215, 2105010715, 2105010515, 2105010615, V3003991, 2105010315, CPE0029P, V309567, 376738464, 210501061564, 31540, 30533, CRB7000S, T50|AReplaces OE Number : 0005018215, 2105010715, 2105010515, 2105010615, V3003991, 2105010315, CPE0029P, V309567, 376738464, 210501061564, 31540, 30533, CRB7000S, T50|AEcomm Landing Page : EuroRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
17132754264 OE Replacement Series Coolant Reservoir Cap - Sold individually
Part Number: URO17132754264
Vehicle Info Required to Guarantee Fit
$8.49
Product Details
Warranty : 2-year or unlimited-mile APA/URO Parts limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement SeriesInterchange Part Number : 17117639024, V201879, 376738454, 17132754264|AReplaces OE Number : 17117639024, V201879, 376738454, 17132754264|AEcomm Landing Page : EuroColor Finish : Black
52079331 Coolant Reservoir Cap - Direct Fit, Sold Individually
Part Number: 52079331
Vehicle Info Required to Guarantee Fit
$18.49
Product Details
Warranty : 1 year or 12,000-mile Crown limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCWReplaces OE Number : 52028251, 1046868Recommended Use : OE ReplacementProduct Fit : Direct Fit
V10-0490 Coolant Reservoir Cap - Replaces OE Number 3B0 121 321
Part Number: VCOV100490
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Warranty : 2-year or 24,000-mile Vaico limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroInterchange Part Number : 1J0121321B, 3B0121321, 8D0121403C, 95810644700, 1J0121321, 1J0121321AReplaces OE Number : 1J0121321B, 3B0121321, 8D0121403C, 95810644700, 1J0121321, 1J0121321AEcomm Landing Page : EuroMaterial : PlasticRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Blue
V10-0012 Coolant Reservoir Cap - Replaces OE Number 1H0 121 321 C
Part Number: VCOV100012
Vehicle Info Required to Guarantee Fit
$9.49
Product Details
Warranty : 24-month or 24,000-mile limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement SeriesInterchange Part Number : 1H0121321A, 1H0121321B, 1H0121321C, 357121321, 357121321A, 357121321C, 191809101A, 191809101F, 1GM809101AReplaces OE Number : 1H0121321A, 1H0121321B, 1H0121321C, 357121321, 357121321A, 357121321C, 191809101A, 191809101F, 1GM809101AEcomm Landing Page : EuroRecommended Use : OE ReplacementProduct Fit : Direct Fit
RC87 GM Original Equipment Series Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: ACRC87
Vehicle Info Required to Guarantee Fit
$13.99
Product Details
Notes : 18 P.S.I. radiator surge tank cap; Use with new pink long life coolantWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesReplaces OE Number : 25713160Recommended Use : OE ReplacementProduct Fit : Direct Fit
55056382AA Coolant Reservoir Cap - Direct Fit
Part Number: CR55056382AA
Vehicle Info Required to Guarantee Fit
$7.49
Product Details
Notes : Use existing hardwareWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Specialty Part : Performance Part by JCWReplaces OE Number : 5174456, 55056382Product Fit : Direct Fit
17111712669 APA/URO Parts OE Replacement Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: URO17111712669
Vehicle Info Required to Guarantee Fit
$8.49
Product Details
Warranty : 2-year or unlimited-mile APA/URO Parts limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : APA/URO Parts OE ReplacementInterchange Part Number : REPB161401, 17111468077, 17111468076, 17111742231, 17117639022, CPE0030P, V2000971, S49002, 376743451, 17111712669, 31332, 01617, CRB22000P|AReplaces OE Number : 17111468076, 17111742231, 17117639022, CPE0030P, V2000971, S49002, 376743451, 17111712669, 31332, 01617, CRB22000P|AEcomm Landing Page : EuroRecommended Use : OE ReplacementProduct Fit : Direct Fit
2Q0-121-321 A Genuine Volkswagen Coolant Reservoir Cap - Sold individually
Part Number: GXL2Q0121321A
Vehicle Info Required to Guarantee Fit
$45.49
Vehicle Fitment
  • 2015 - 2019 Volkswagen Golf Sportwagen All Submodels All Engines
  • 2019 - 2020 Volkswagen GTI All Submodels All Engines
  • 2019 - 2020 Volkswagen Jetta Highline 4 Cyl 1.4L
  • 2018 - 2020 Volkswagen Atlas S 4 Cyl 2.0L
  • 2018 - 2019 Volkswagen Atlas Trendline 4 Cyl 2.0L
  • 2018 - 2018 Volkswagen Atlas SEL 4 Cyl 2.0L
  • 2020 Volkswagen Atlas SEL 4 Cyl 2.0L
  • 2018 - 2020 Volkswagen Atlas SE 4 Cyl 2.0L
  • 2020 Volkswagen Atlas Cross Sport SEL 4 Cyl 2.0L
  • 2019 - 2020 Volkswagen Passat All Submodels All Engines
  • 2019 - 2020 Volkswagen Jetta SEL 4 Cyl 1.4L
  • 2019 - 2020 Volkswagen Jetta SE 4 Cyl 1.4L
  • 2015 - 2020 Volkswagen Golf All Submodels All Engines
  • 2019 - 2020 Volkswagen Jetta S 4 Cyl 1.4L
  • 2019 - 2020 Volkswagen Jetta Comfortline 4 Cyl 1.4L
  • 2020 Volkswagen Atlas SEL Premium 4 Cyl 2.0L
  • 2020 Volkswagen Atlas Cross Sport SE 4 Cyl 2.0L
  • 2019 - 2020 Volkswagen Jetta Execline 4 Cyl 1.4L
  • 2018 - 2020 Volkswagen Tiguan All Submodels All Engines
  • 2018 - 2019 Volkswagen Atlas Comfortline 4 Cyl 2.0L
  • 2017 - 2019 Volkswagen Golf Alltrack All Submodels All Engines
  • 2020 Volkswagen Atlas Cross Sport Comfortline 4 Cyl 2.0L
  • 2019 - 2020 Volkswagen Arteon All Submodels All Engines
  • 2020 Volkswagen Atlas Cross Sport S 4 Cyl 2.0L
  • 2019 - 2020 Volkswagen Jetta R-Line 4 Cyl 1.4L
  • 2019 - 2020 Volkswagen Jetta SEL Premium 4 Cyl 1.4L
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Genuine Volkswagen
T50 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT50
Vehicle Info Required to Guarantee Fit
$13.49
Product Details
Notes : 21 PSI; 1.33 in. Width; 0.83 in. Valve OD; Cam-On Attachment TypeWarranty : 12-month Motorad limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Material : Stainless steel and rubberRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Silver
Expansion Tank Cap - Replaces OE Number MJA4440BA
Part Number: T4ZMJA4440BA
Vehicle Info Required to Guarantee Fit
$10.49
Product Details
Warranty : 24-month or 24,000-mile limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : MJA4440BAReplaces OE Number : MJA4440BARecommended Use : OE ReplacementProduct Fit : Direct Fit
17-13-8-665-638 Genuine BMW Coolant Reservoir Cap - Sold individually
Part Number: GXL17138665638
Vehicle Info Required to Guarantee Fit
$32.99
Vehicle Fitment
  • 2019 - 2021 BMW 330i xDrive Base All Engines
  • 2020 BMW Z4 sDrive M40i All Engines
  • 2020 BMW M340i xDrive All Submodels All Engines
  • 2020 BMW Z4 M40i First Edition All Engines
  • 2020 BMW M340i All Submodels All Engines
  • 2019 - 2020 BMW Z4 sDrive30i All Engines
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Genuine BMW
17-11-7-639-022 Expansion Tank Cap - Mahle Behr 17117639022
Part Number: MHB17117639022
Vehicle Info Required to Guarantee Fit
$12.49
Product Details
Warranty : 24-month limited warrantyQuantity Sold : Sold IndividuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Interchange Part Number : 376743451, 17117639022, 17111742231Replaces OE Number : 376743451, 17117639022, 17111742231Recommended Use : OE ReplacementProduct Fit : Direct Fit
Page 1 of 17 | Showing 1 - 15 of 241 results

Top Rated Products

Fit perfect. Hard to find item. Looked at other sites too
Anonymous
VERIFIED PURCHASER
Good fit and fixed my issue of the old cap not sealing well and leaking water,
Anonymous
VERIFIED PURCHASER

Shopping for Coolant Reservoir Cap

Coolant Reservoir Cap Shopping Info

What Is a Coolant Reservoir Cap?

The engine coolant reservoir cap seals the coolant reservoir tank and prevents coolant contamination. It’s usually made of metal or plastic.

How Much Does a Coolant Reservoir Cap Replacement Cost?

A coolant reservoir replacement costs around $50 and $250. Coolant reservoir cap prices may vary depending on their brand, quantity, warranty, and series.

Shop for Aftermarket Coolant Reservoir Caps on CarParts.com

Need to replace your coolant’s reservoir cap? Find exactly what you need here at CarParts.com with just a few clicks!

We have top-notch coolant reservoir caps for various makes and models. They’re sold individually and in sets of 6. What’s more, they come with a low-price guarantee, so it doesn’t matter if you’re shopping while on a tight budget. You’re sure to get an OE-grade coolant reservoir cap replacement at a price that won’t break the bank.

We source all our replacement parts and accessories from top aftermarket brands. Our team of industry experts handpicked every coolant reservoir cap in our catalog to make sure you’re getting the best replacement part for your vehicle.

In a hurry to repair your ride? Take advantage of our fast shipping. All our coolant reservoir caps are on hand and ready to ship from strategically located warehouses across the country. Order now, and get your new coolant reservoir cap in a matter of days. If you have any questions about our products, our friendly customer service team is available round the clock to help you out.

Enter your ride’s exact details into our easy-to-use vehicle selector to view compatible coolant reservoir cap replacements. Then, use our filters to narrow down your search according to the brand, price range, and feature you prefer. Check out our catalog and shop now!

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Is Coolant the Same as Antifreeze? Plus Other Related Questions Answered
Is Coolant the Same as Antifreeze? Plus Other Related Questions AnsweredIf this seems confusing, don’t worry. Below, we’re going to cover the ins and outs of coolant, including the subtle yet important difference between the terms coolant and antifreeze. Many professionals use the terms coolant and antifreeze interchangeably because they mean almost the same thing—almost. What’s the Difference Between Coolant and Antifreeze?