{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": true,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": true,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": true,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": true,
    "zipPaymentFlag": "c",
    "hassleFreeReturn": true,
    "lifetimeReplacement": true,
    "cpn_off": false
}
Select your vehicle

Mazda Coolant Reservoir Caps

Refine by:

Shop Catalog

Showing 1 - 15 of 16 results
Display item:
15
30
45
Sort by:
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
T18R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT18R
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Notes : 18 PSI; 1.72 in. Width; 0.98 in. Cap DepthWarranty : 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 Fit
T47 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT47
Vehicle Info Required to Guarantee Fit
$8.99
Product Details
Notes : 18 PSI; 1.94 in. Width; 1.33 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
T112 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT112
Vehicle Info Required to Guarantee Fit
$11.49
Product Details
Notes : 1.54 in. Width; Push-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 : PlasticRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
T56 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT56
Vehicle Info Required to Guarantee Fit
$8.49
Product Details
Notes : 20 PSI; 1.96 in. Width; 1.16 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
ST13R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDST13R
Vehicle Info Required to Guarantee Fit
$7.49
Product Details
Notes : 13 PSI; 1.71 in. Width; 1.14 in. Valve ODWarranty : 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 Fit
T13R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT13R
Vehicle Info Required to Guarantee Fit
$15.99
Product Details
Notes : 13 PSI; 1.72 in. Width; 0.97 in. Cap DepthWarranty : 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 Fit
ST16R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDST16R
Vehicle Info Required to Guarantee Fit
$7.99
Product Details
Notes : 16 PSI; 1.71 in. Width; 1.14 in. Valve ODWarranty : 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 Fit
T38 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT38
Vehicle Info Required to Guarantee Fit
$6.49
Product Details
Notes : 16 PSI; 1.97 in. Width; 1.30 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
T20R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT20R
Vehicle Info Required to Guarantee Fit
$7.99
Product Details
Notes : 20 PSI; 1.72 in. Width; 0.97 in. Cap DepthWarranty : 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 Fit
T37 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT37
Vehicle Info Required to Guarantee Fit
$7.99
Product Details
Notes : 16 PSI; 1.97 in. Width; 1.30 in. Valve OD; 0.85 in. Cap DepthWarranty : 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 : Metal and RubberRecommended Use : OE ReplacementProduct Fit : Direct Fit
ST37 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDST37
Vehicle Info Required to Guarantee Fit
$12.49
Product Details
Notes : 16 PSI; 1.65 in. Width; 1.24 in. Cap Depth; Quick Pressure ReleaseWarranty : 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 Fit
T16R Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT16R
Vehicle Info Required to Guarantee Fit
$5.99
Product Details
Notes : 16 PSI; 1.72 in. Width; 0.97 in. Cap DepthWarranty : 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 Fit
31406 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: GAT31406
Vehicle Info Required to Guarantee Fit
$5.99
Product Details
Warranty : Lifetime Gates 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
T57 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT57
Vehicle Info Required to Guarantee Fit
$6.99
Product Details
Notes : 21 PSI; 2.71 in. Width; 2.04 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
Page 1 of 2 | Showing 1 - 15 of 16 results

Product Questions & Answers

Q:Can I get this over nighted ? 2001 Ford F-150 - Coolant Reservoir Cap - Direct Fit, Sold individuall... Highlights Vehicle Fitment Information Product Information Product Q&A Customer Ratings (5) Total Amount: $5.4 Show Less
Moses K.
A:BEST ANSWERHi Moses, thank you for reaching out! Kindly call our Parts Team at 1-866-529-0412 and provide your address so they can check. Have a good one! Show less
Andrew B.
 
1 Question, 1 AnswerView all Q&As >

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?