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Audi S4 Coolant Reservoirs

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Coolant Reservoir, 1.8L/2.0L/3.2L Engine, 2.5L Capacity, With Cap, Single tube
Replacement
Coolant Reservoir, 1.8L/2.0L/3.2L Engine, 2.5L Capacity, With Cap, Single tube
Part Number: REPA161304
Vehicle Info Required to Guarantee Fit
$16.49
Product Details
Notes : With cap; 2.5L Capacity; Single tubeProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 8E0121403Replaces Partslink Number : AU3014101Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, 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 : 8E0121403, AU3014101Returns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPV161301
Vehicle Info Required to Guarantee Fit
$16.99
Product Details
Notes : With CapProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 8D0121403L-PFMWarranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, 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 : 603703, 8D0121403L-PFMReturns Policy : 30-Day Return Policy
Coolant Reservoir
Replacement
Coolant Reservoir
Part Number: REPA161309
Vehicle Info Required to Guarantee Fit
$12.58
Product Details
Notes : With cap and level sensorProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 4A0121403Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Phthalates, 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.

Deals : ClearanceInterchange Part Number : 4A0121403, 4A0121403Returns Policy : 30-Day Return Policy
Radiator Kit, 1.8L/2.0L/2.7L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir
Replacement
Radiator Kit, 1.8L/2.0L/2.7L Engines, Aluminum Core, Plastic Tank, includes Coolant Reservoir
Part Number: KIT-120622-58
Vehicle Info Required to Guarantee Fit
$101.99
Product Details
Notes : Coolant Reservoir - With Cap; Radiator - Automatic Transmission (will fit Manual Transmission, transmission coolant line does not need to be plugged)Core Dimensions : 24.88 x 15.63 x 1.25 in. Core SizeComponents : (1) Radiator and (1) Coolant ReservoirEngine Oil Cooler : Without Engine Oil CoolerInlet Size : 1.25 in. InletOutlet Location : Bottom left outletRecommended Use : OE ReplacementNumberof Rows : 1-Row CoreTank Material : Plastic TankCore Material : Aluminum CoreColor Finish : Factory FinishOutlet Size : 1.25 in. OutletInlet Location : Top left inletProduct Fit : Direct FitQuantity Sold : KitReplaces OE Number : 8D0121403L-PFM, 8D0121251BCReplaces Partslink Number : VW3010115Warranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead and lead compounds, 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 : 4th of July SaleReturns Policy : 30-Day Return PolicyCore Height : 24 7/8 in.Core Width : 15 5/8 in.Core Thickness : 1 1/4 in.Interchange Part Number : 603703, 8D0121403L-PFM, 3360, CU2034, 8D0121251BC, VW3010115
8K0121405N APA/URO Parts Coolant Reservoir Coolant Reservoir
APA/URO Parts®
8K0121405N APA/URO Parts Coolant Reservoir Coolant Reservoir
Part Number: URO8K0121405N
Vehicle Info Required to Guarantee Fit
$33.49
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 8K0121405F, 8K0121405H, 8K0121405Q, 8K0121405N, 8K0121405SWarranty : 2-year, unlimited-mileage APA/URO Parts 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.

Promotions : European Vehicle PartsSeries : APA/URO Parts Coolant ReservoirInterchange Part Number : 8K0121405F, 8K0121405H, 8K0121405Q, 8K0121405N, 8K0121405S
8K0-121-405 S Coolant Reservoir
Febi®
8K0-121-405 S Coolant Reservoir
Part Number: FBI8K0121405S
Vehicle Info Required to Guarantee Fit
$48.49
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 24-month or 24,000-mile 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.

603-703 OE Solutions Series Coolant Reservoir
Dorman®
603-703 OE Solutions Series Coolant Reservoir
Part Number: RB603703
Vehicle Info Required to Guarantee Fit
$28.49
Product Details
Notes : With cap and level sensor; Without hoseProduct Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : FRT1101C, 3B0121321, 8D0121403F, 8D0121403J, 8D0121403L, WST0024, Z49036, 21403L, 21403L-T, DAKG-21403L, SK603703Warranty : Lifetime Dorman 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.

Series : OE Solutions SeriesInterchange Part Number : REPV161301, FRT1101C, 3B0121321, 8D0121403F, 8D0121403J, 8D0121403L, WST0024, Z49036, 21403L, 21403L-T, DAKG-21403L, SK603703
8E0-121-403 F Coolant Reservoir
Febi®
8E0-121-403 F Coolant Reservoir
Part Number: FBI8E0121403F
Vehicle Info Required to Guarantee Fit
$33.99
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 24-month or 24,000-mile 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.

4A0-121-403 Coolant Reservoir
Mahle Behr®
4A0-121-403 Coolant Reservoir
Part Number: MHB4A0121403
Vehicle Info Required to Guarantee Fit
$29.49
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 24-month 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.

603-634 OE Solutions Series Coolant Reservoir
Dorman®
603-634 OE Solutions Series Coolant Reservoir
Part Number: RB603634
Vehicle Info Required to Guarantee Fit
$41.99
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : FRT1113C, 4A0121403, Z49030, SK603634Warranty : Lifetime Dorman 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.

Series : OE Solutions SeriesInterchange Part Number : FRT1113C, 4A0121403, Z49030, SK603634
V10-4401 Coolant Reservoir - Replaces OE Number 8K0 121 405 N
Vaico®
V10-4401 Coolant Reservoir - Replaces OE Number 8K0 121 405 N
Part Number: VCOV104401
Vehicle Info Required to Guarantee Fit
$44.99
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 8K0121405A, 8K0121405E, 8K0121405F, 8K0121405H, 8K0121405N, 8K0121405Q, 8K0121405R, 8K0121405S, 8K0121146Warranty : 2-year or 24,000-mile Vaico 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.

Promotions : European Vehicle PartsInterchange Part Number : 8K0121405A, 8K0121405E, 8K0121405F, 8K0121405H, 8K0121405N, 8K0121405Q, 8K0121405R, 8K0121405S, 8K0121146
V10-8287 Coolant Reservoir - Replaces OE Number 8E0 121 403 F
Vaico®
V10-8287 Coolant Reservoir - Replaces OE Number 8E0 121 403 F
Part Number: VCOV108287
Vehicle Info Required to Guarantee Fit
$52.99
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyReplaces OE Number : 8E0121403FWarranty : 2-year or 24,000-mile Vaico 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.

Promotions : European Vehicle PartsInterchange Part Number : 8E0121403F
8K0-121-405 S Coolant Reservoir
Rein®
8K0-121-405 S Coolant Reservoir
Part Number: REI8K0121405S
Vehicle Info Required to Guarantee Fit
$54.49
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 24-month 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.

Genuine Audi Coolant Expansion Tank - Replaces OE Number 8E0-121-403 F
GenuineXL®
Genuine Audi Coolant Expansion Tank - Replaces OE Number 8E0-121-403 F
Part Number: GXL8E0121403F
Vehicle Info Required to Guarantee Fit
$98.99
Product Details
Product Fit : Direct FitQuantity Sold : Sold individuallyWarranty : 24-month or 24,000-mile 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.

Series : Genuine Audi
4710-11018 AWE ColdFront Reservoir
AWE Tuning®
4710-11018 AWE ColdFront Reservoir
Part Number: AWE471011018
Vehicle Info Required to Guarantee Fit
$595.00
Product Details
Product Fit : Direct FitWarranty : 1 year AWE Tuning 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.

Page 1 of 2 | Showing 1 - 15 of 19 results

Top Rated Products

Replacement Coolant Reservoir
$16.99( Review)
Meets the needs of my car. I had no problems installing and it's working great.
Anglene J.
VERIFIED PURCHASER
Replacement Coolant Reservoir, 1.8L/2.0L/3.2L Engine, 2.5L Capacity, With Cap, Single tube
$16.49( Review)
Good product, well made, just got the wrong one but they took care of the issue, 10/1See More
Joel C.
VERIFIED PURCHASER

Helpful Automotive Resources

Where Is the Coolant Reservoir Located?
Where Is the Coolant Reservoir Located?The coolant reservoir is a storage tank that holds excess engine coolant. The reservoir also regulates the coolant fluid’s movement into and out of the engine cooling system through its connection to the radiator’s pressure relief valve. .kadence-column_d5d35e-cb > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_d5d35e-cb > .kt-inside-inner-col,.kadence-column_d5d35e-cb > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_d5d35e-cb > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_d5d35e-cb > .kt-inside-inner-col{flex-direction:column;}.kadence-column_d5d35e-cb > .kt-inside-inner-col
Why Is My Coolant Boiling?
Why Is My Coolant Boiling?Boiling coolant can indicate problems in your engine, so don’t disregard it. Here are some of the common reasons why coolant reaches its boiling point: Faulty Radiator Cap When the cap is damaged or loose, air can enter the system and disrupt its operating temperature, which could cause the coolant to boil.
Common Problems After Engine Replacement Plus Prevention Tips
Common Problems After Engine Replacement Plus Prevention TipsPro Tips are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.