{
    "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
}
Select your vehicle

Buick Roadmaster Coolant Reservoir Caps

Refine by:

Shop Catalog

Showing 1 - 6 of 6 results
Sort by:
RC74 GM Original Equipment Series Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: ACRC74
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Notes : 15 P.S.I. radiator surge tank cap; With brass ring on fill neckWarranty : 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 : 10244485Recommended Use : OE ReplacementProduct Fit : Direct Fit
ST16 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDST16
Vehicle Info Required to Guarantee Fit
$7.99
Product Details
Warranty : 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, Rubber, and SteelRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Silver
T39 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT39
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Notes : 15 PSI; 1.97 in. Width; 1.37 in. Valve OD; 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 : Black
RC87 GM Original Equipment Series Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: ACRC87
Vehicle Info Required to Guarantee Fit
$14.49
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
T31 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT31
Vehicle Info Required to Guarantee Fit
$14.99
Product Details
Notes : 1.77 in. Width; 1.26 in. Valve OD; 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 : Black
T16 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT16
Vehicle Info Required to Guarantee Fit
$6.49
Product Details
Warranty : 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
Page 1 of 1 | Showing 1 - 6 of 6 results

Top Rated Products

This order, like one that was made a few days earlier, promptly arrived and was a perSee More
Harry M.
VERIFIED PURCHASER

Product Questions & Answers

Q:will this cap keep it from overflowing?
nita t.
A:BEST ANSWERHi Nita, thank you for reaching out! Yes, it will keep the reservoir from overflowing. You can click the link below to order the cap while stocks last. Have a good one! https://www.carparts.com/coolant-reservoir-cap/ac-delco/acrc87?can=cpab2020_csqa_20231205 Show less
Andrew B.
 
1 Question, 1 AnswerView all Q&As >