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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Service & Maintenance Parts

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Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug

ES#2795704 - 06B121111KT3 - Cooling System Refresh Kit - Level 2 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! - Assembled By ECS - Audi

Includes ECS' upgraded J-plug & replace your thermostat, temp sensors, coolant flange, & expansion tank with one kit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795704
Mfg#:
06B121111KT3
In Stock at Vendor
ON SALE! SAVE 17%
$317.99

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

$264.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

2.0T Coil Pack Conversion Kit - Stage 1

ES#2731573 - 002598ECS26KT - 2.0T Coil Pack Conversion Kit - Stage 1 - Includes wrinkle black conversion plate and stainless steel hardware - ECS - Audi Volkswagen

Includes wrinkle black conversion plate and stainless steel hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2731573
Mfg#:
002598ECS26KT
In Stock
ON SALE! SAVE 20%
$164.99

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

$131.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit

ES#2731735 - MK44C3KKT2 - Oil Service Kit - Includes large Mann oil filter and Vaico 5w-40 oil - Assembled By ECS - Audi Volkswagen

Includes large Mann oil filter and Vaico 5w-40 oil affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2731735
Mfg#:
MK44C3KKT2
Ships in 1-2 days
ON SALE!
$66.99

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

$65.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Extended Spark Plug Socket

ES#3008984 - SUU884506 - Extended Spark Plug Socket - 3/8" drive socket with 5/8" opening for most spark plugs - Sunex - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3/8" drive socket with 5/8" opening for most spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Sunex - Corporate Logo
ES#:
3008984
Mfg#:
SUU884506
In Stock
9% off MSRP

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

$31.99

This product was last offered at the strikethrough price on
06-10-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#3220407 - 06C905115M - Ignition Coil - Priced Each - Keep your engine running smooth - Delphi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Delphi - Corporate Logo
ES#:
3220407
Mfg#:
06C905115M
Ships in 1 day
$43.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2581839 - 06B903133EKT - Accessory Belt Kit - Includes belt, tensioner, & hardware to ensure that your belt is tight and reliable. - Assembled By ECS - Audi

Includes belt, tensioner, & hardware to ensure that your belt is tight and reliable. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-4-191000 - split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581839
Mfg#:
06B903133EKT
Ships on Jul 17, 2026
Auto Notify
ON SALE! SAVE 21%
$107.99

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

$85.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

ES#2219669 - 06A103213F - Emissions Service Kit - Complete PCV Refresh Kit for your engine - Assembled By ECS - Audi

Complete PCV Refresh Kit for your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-3-040000, split is in the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2219669
Mfg#:
06A103213F
Ships in 3 Business Days
ON SALE!
$268.99

This product was last offered at the strikethrough price on
01-29-2026

$255.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Repair Harness

ES#3647595 - 034-701-0004 - Coil Pack Repair Harness - Cure misfires by replacing your brittle, heat-hardened, and cracking factory harness - 034Motorsport - Audi Volkswagen

Cure misfires by replacing your brittle, heat-hardened, and cracking factory harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3647595
Mfg#:
034-701-0004
Ships in 2 Business Days
$253.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 3

ES#2608083 - 06B121132EKT2 - Cooling System Refresh Kit - Level 3 - Replace critical cooling system components and perform a proper coolant system flush - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608083
Mfg#:
06B121132EKT2
In Stock at Vendor
ON SALE! SAVE 11%
$284.99

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

$252.78 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

PNP Ethanol Sensor Harness For Motiv Re|Flex Plus

ES#4882977 - 201-0410 - PNP Ethanol Sensor Harness For Motiv Re|Flex Plus - This Plug-n-Play Ethanol Sensor Harness from Precision Raceworks is certified by Motiv and directly compatible with the ReFlex+. - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz

This Plug-n-Play Ethanol Sensor Harness from Precision Raceworks is certified by Motiv and directly compatible with the ReFlex+. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4882977
Mfg#:
201-0410
Ships in 8 Business Days
$49.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2

ES#2608082 - 06B121111KKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensors, coolant flange, and expansion tank with one kit! - Assembled By ECS - Audi

Replace your thermostat, temp sensors, coolant flange, and expansion tank with one kit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608082
Mfg#:
06B121111KKT2
In Stock at Vendor
ON SALE! SAVE 11%
$271.99

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

$241.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Gasoline Engine Treatment - 6-9 Quart Capacity

ES#3619899 - G8RVS - Gasoline Engine Treatment - 6-9 Quart Capacity - A triboceramic treatment to restore and protect metal surfaces inside the engine - RVS Technology - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A triboceramic treatment to restore and protect metal surfaces inside the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
RVS Technology - Corporate Logo
ES#:
3619899
Mfg#:
G8RVS
Ships in 2 Business Days
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hightec SYNTH RS SAE 0W-40 - 5 Liter

ES#5374160 - 20020-0050-99 - Hightec SYNTH RS SAE 0W-40 - 5 Liter - High-performance engine oil with an optimal viscosity grade produced using fully synthetic polyalpha-olefins (PAO). - ROWE - Audi BMW Volkswagen Mercedes Benz MINI Porsche

High-performance engine oil with an optimal viscosity grade produced using fully synthetic polyalpha-olefins (PAO). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ROWE - Corporate Logo
ES#:
5374160
Mfg#:
20020-0050-99
Ships in 7 Business Days
$57.99 USD
Free Shipping
on orders $49 and up

Auto-Ranging Digital Multimeter

ES#2940373 - ESI480A - Auto-Ranging Digital Multimeter - Every tool box needs one and this one is easy to use - Electronic Specialties - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Every tool box needs one and this one is easy to use affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Electronic Specialties - Corporate Logo
ES#:
2940373
Mfg#:
ESI480A
Ships in 6 Business Days
$228.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 1 With ECS Billet Aluminum J-Plug

ES#2795701 - 06B121111KT2 - Cooling System Refresh Kit - Level 1 With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-plug & replace your thermostat, temp sensor & expansion tank with one kit! - Assembled By ECS - Audi

Includes ECS' upgraded J-plug & replace your thermostat, temp sensor & expansion tank with one kit! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795701
Mfg#:
06B121111KT2
In Stock at Vendor
ON SALE! SAVE 17%
$274.99

This product was last offered at the strikethrough price on
01-03-2026

$228.28 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each

ES#2834954 - N90813202 - Engine Oil Drain Plug with Seal - M14x22x1.5mm - Price Each - Includes crush washer. M14x1.5 - Febi - Audi

Includes crush washer. M14x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2834954
Mfg#:
N90813202
In Stock at Vendor
$4.99

This product was last offered at the strikethrough price on
01-03-2026

$3.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Service & Maintenance Parts

An ounce of prevention improves engine reliability and heads off big-ticket repairs. On average, the modest cost or periodic maintenance pays handsome rewards. Plan now to put your car on a regular schedule that includes fluid and filter changes, inspections, and recommended service.

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

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