{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
0
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Select your vehicle

Volkswagen GTI Coolant Reservoir Caps

Refine by:

Shop Catalog

Showing 1 - 10 of 10 results
Sort by:
2Q0-121-321 A Genuine Volkswagen Coolant Reservoir Cap - Sold individually
GenuineXL®
2Q0-121-321 A Genuine Volkswagen Coolant Reservoir Cap - Sold individually
Part Number: GXL2Q0121321A
Vehicle Info Required to Guarantee Fit
$37.99
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.

Series : Genuine Volkswagen
40722 Expansion Tank Cap - Replaces OE Numbers
Febi®
40722 Expansion Tank Cap - Replaces OE Numbers
Part Number: FBI40722
Vehicle Info Required to Guarantee Fit
$5.49
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.

Replaces OE Number : 3B0-121-321, 958-106-447-00Recommended Use : OE ReplacementProduct Fit : Direct Fit
3B0-121-321 Genuine Audi, Porsche, Volkswagen Expansion Tank Cap - Replaces OE Numbers
GenuineXL®
3B0-121-321 Genuine Audi, Porsche, Volkswagen Expansion Tank Cap - Replaces OE Numbers
Part Number: GXL3B0121321
Vehicle Info Required to Guarantee Fit
$34.99
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.

Series : Genuine Audi, Porsche, VolkswagenRecommended Use : OE ReplacementProduct Fit : Direct Fit
54019 Help Series Coolant Reservoir Cap - Direct Fit, Sold individually
Dorman®
54019 Help Series Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: RB54019
Vehicle Info Required to Guarantee Fit
$16.49
Product Details
Warranty : Lifetime Dorman 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 : Help SeriesInterchange Part Number : 3B0121321Replaces OE Number : 3B0121321Recommended Use : OE ReplacementProduct Fit : Direct Fit
V10-0490 Coolant Reservoir Cap - Replaces OE Number 3B0 121 321
Vaico®
V10-0490 Coolant Reservoir Cap - Replaces OE Number 3B0 121 321
Part Number: VCOV100490
Vehicle Info Required to Guarantee Fit
$7.99
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 : European Vehicle PartsInterchange Part Number : 1J0121321B, 3B0121321, 8D0121403C, 95810644700, 1J0121321, 1J0121321AReplaces OE Number : 1J0121321B, 3B0121321, 8D0121403C, 95810644700, 1J0121321, 1J0121321AMaterial : PlasticRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Blue
103522 Coolant Reservoir Cap - Direct Fit, Sold individually
Febi®
103522 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: FBI103522
Vehicle Info Required to Guarantee Fit
$11.49
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.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
CPE0024P Coolant Reservoir Cap - Sold individually
Rein®
CPE0024P Coolant Reservoir Cap - Sold individually
Part Number: REICPE0024P
Vehicle Info Required to Guarantee Fit
$13.99
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.

V10-0890 Coolant Reservoir Cap - Replaces OE Number 5Q0 121 321
Vaico®
V10-0890 Coolant Reservoir Cap - Replaces OE Number 5Q0 121 321
Part Number: VCOV100890
Vehicle Info Required to Guarantee Fit
$11.99
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 : European Vehicle PartsInterchange Part Number : 2Q0121321A, 3C0121321, 5Q0121321, 2Q0121321, 5Q0121184Replaces OE Number : 2Q0121321A, 3C0121321, 5Q0121321, 2Q0121321, 5Q0121184Material : PlasticRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
T49 Coolant Reservoir Cap - Direct Fit, Sold individually
Motorad®
T49 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT49
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Notes : 22 PSI; 3.16 in. Width; Threaded 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 : Plastic and RubberRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Blue
3B0121321 APA/URO Parts OE Replacement Coolant Reservoir Cap - Direct Fit, Sold individually
APA/URO Parts®
3B0121321 APA/URO Parts OE Replacement Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: URO3B0121321
Vehicle Info Required to Guarantee Fit
$19.49
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 : European Vehicle PartsSeries : APA/URO Parts OE ReplacementInterchange Part Number : 603030, 54202, V100490, 603350, Z49036, 3B0121321Replaces OE Number : 603030, 54202, V100490, 603350, Z49036, 3B0121321Product Fit : Direct Fit
Page 1 of 1 | Showing 1 - 10 of 10 results

Helpful Automotive Resources

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?