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Audi S4 Engine Cooling Parts

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Expansion Tank Cap

ES#2102281 - 8E0121321 - Expansion Tank Cap - Plastic pressure cap for expansion tank - MTC - Audi

Plastic pressure cap for expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MTC - Corporate Logo
ES#:
2102281
Mfg#:
8E0121321
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#3672033 - 3C0121321 - Expansion Tank Cap - Keep proper pressure in your coolant system - Stant - Audi Volkswagen Porsche

Keep proper pressure in your coolant system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Stant - Corporate Logo
ES#:
3672033
Mfg#:
3C0121321
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

HOLDING CLIP

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801984
Mfg#:
32121142
Ships in 4 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler O-Ring - Priced Each

ES#5340317 - 079103121AD - Oil Cooler O-Ring - Priced Each - Seals the connection between the oil cooler and the engine - Elring - Audi

Seals the connection between the oil cooler and the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN-8E-4-200001, split is in the 2004 model year

Brand:
Elring - Corporate Logo
ES#:
5340317
Mfg#:
079103121AD
Ships on Jun 24, 2026
Auto Notify
$4.99 USD
Free Shipping
on orders $49 and up

seal ring

ES#2865798 - 038117070A - seal ring - Seals the connection between the oil cooler and the filter adapter. 59x5 - Febi - Audi Volkswagen

Seals the connection between the oil cooler and the filter adapter. 59x5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to VIN 8D-Y-022960, split is in the 2000 model year

Brand:
Febi - Corporate Logo
ES#:
2865798
Mfg#:
038117070A
Ships on Sep 2, 2026
$4.99 USD
Free Shipping
on orders $49 and up

Water Pump Seal

ES#10493 - 035121043 - Water Pump Seal - Keep your waterpump leak free! - Victor Reinz - Audi

Keep your waterpump leak free! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
10493
Mfg#:
035121043
Back Ordered
$2.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

Keep proper pressure on your coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2815739
Mfg#:
443121321
Ships in 2 Business Days
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose Retaining Clip - Priced Each

ES#4941347 - 1J0121142 - Cooling Hose Retaining Clip - Priced Each - Secures the radiator hose flange in place. 32mm - Bremmen Parts - Audi Volkswagen

Secures the radiator hose flange in place. 32mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941347
Mfg#:
1J0121142
Back Ordered
Auto Notify
ON SALE! SAVE 57%
$1.99

This product was last offered at the strikethrough price on
05-02-2026

$0.86 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

ES#260059 - N0147455 - Allen Bolt - Priced Each - Install new hardware with your new parts. M6x14 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x14 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the fan blade to the clutch

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
260059
Mfg#:
N0147455
Special Order: No Guaranteed ETA
33% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$4.90

This product was last offered at the strikethrough price on
06-07-2026

$3.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Drain Plug

Used for quick removal of coolant affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JL Germany
ES#:
4044479
Mfg#:
8D0121100
Back Ordered
$3.99

This product was last offered at the strikethrough price on
05-07-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Scratch and Dent Item

Universal 12" Electric Fan - Black *Scratch And Dent*

ES#4920624 - 30102029SD - Universal 12" Electric Fan - Black *Scratch And Dent* - Scratch & Dent - Audi BMW MINI

ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Scratch & Dent - Corporate Logo
ES#:
4920624
Mfg#:
30102029SD
In Stock
ON SALE! SAVE 13%
$207.99

This product was last offered at the strikethrough price on
05-02-2026

$181.99 USD
Free Shipping
on orders $49 and up
Scratch and Dent Item

B8 S4 / S5 3.0T Performance Aluminum Radiator *Scratch And Dent*

ES#5457061 - 012620LA02sd - B8 S4 / S5 3.0T Performance Aluminum Radiator *Scratch And Dent* - Direct-fit upgrade! Featuring a 33% increase in core thickness and durable, all-aluminum construction. - Scratch & Dent - Audi

Direct-fit upgrade! Featuring a 33% increase in core thickness and durable, all-aluminum construction. ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Scratch & Dent - Corporate Logo
ES#:
5457061
Mfg#:
012620LA02SD
In Stock
Limited Qty Sale
$407.99

This product was last offered at the strikethrough price on
05-02-2026

$321.99 USD
Scratch and Dent Item

Water Pump - (NO LONGER AVAILABLE) *Scratch And Dent*

ES#5396850 - 06E121018Ksd - Water Pump - (NO LONGER AVAILABLE) *Scratch And Dent* - New water pump with coolant housing, does not include pulley - Scratch & Dent - Audi Volkswagen

New water pump with coolant housing, does not include pulley ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from the 2013 model year (facelift)

Brand:
Scratch & Dent - Corporate Logo
ES#:
5396850
Mfg#:
06E121018KSD
In Stock
ON SALE!
$259.99

This product was last offered at the strikethrough price on
05-02-2026

$239.99 USD
Free Shipping
on orders $49 and up

Meyle Anti-Freeze / Coolant Concentrate - 1.5 Liter (G13)

Lilac OE VW/Audi specification concentrate lifetime coolant. Meets MB 325.5 Specification. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Meyle - Corporate Logo
ES#:
5443792
Mfg#:
0140169600
Ships Today
$15.99 USD

Auxiliary Side Mount Radiator Upgrade Kit

ES#4872111 - 034-102-1007 - Auxiliary Side Mount Radiator Upgrade Kit - Includes everything you need to replace your factory side mount radiator with the larger CSF Radiator - 034Motorsport - Audi

Includes everything you need to replace your factory side mount radiator with the larger CSF Radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4872111
Mfg#:
034-102-1007
Ships on Jul 10, 2026
$562.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Replacement Kit

ES#2973044 - 078117021AKT - Oil Cooler Replacement Kit - Includes the necessary components to replace your oil cooler and perform an engine oil service - Assembled By ECS - Audi

Includes the necessary components to replace your oil cooler and perform an engine oil service affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8D-Y-022960, split is in the 2000 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2973044
Mfg#:
078117021AKT
Ships in 2 Business Days
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

More About Engine Cooling Parts

Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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