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Audi 4M SQ8 Quattro 4.0T

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Audi 4M SQ8 Quattro 4.0T Engine Parts & Accessories

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Diverter Valve - Priced Each

ES#3707294 - 0P2145710 - Diverter Valve - Priced Each - Cure the boost leak and restore power - Genuine Volkswagen Audi - Audi

Cure the boost leak and restore power

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3707294
Mfg#:
0P2145710
Ships in 2 Business Days
8% off MSRP

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

$191.99

This product was last offered at the strikethrough price on
08-11-2026

$175.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Set Of Eight

ES#4304862 - 0p2905601KT - Spark Plug - Set Of Eight - Keep your engine running smooth with a set of new plugs - Genuine Volkswagen Audi - Audi

Keep your engine running smooth with a set of new plugs

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4304862
Mfg#:
0P2905601KT
Ships in 2 Business Days
$221.99

This product was last offered at the strikethrough price on
02-12-2026

$143.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Engine Cover - 2.9T, 3.0T, 4.0T (SUV) - Carbon Fiber

ES#4715658 - MS100256 - APR Engine Cover - 2.9T, 3.0T, 4.0T (SUV) - Carbon Fiber - A full carbon fiber engine cover to enhance your engine bay! - APR - Audi Porsche

A full carbon fiber engine cover to enhance your engine bay! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4715658
Mfg#:
MS100256
Ships in 5 Business Days
ON SALE! SAVE 41%
$1649.99

This product was last offered at the strikethrough price on
06-24-2026

$965.66 USD
Free Shipping

Diverter Valve

ES#259456 - 06H145710D - Diverter Valve - Superior piston style diverter valve - Genuine Volkswagen Audi - Audi Volkswagen

Superior piston style diverter valve

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
259456
Mfg#:
06H145710D
Ships in 1 day
7% off MSRP

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

$196.99

This product was last offered at the strikethrough price on
05-19-2026

$183.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#5385825 - 0P29056012KT2 - Ignition Service Kit - Includes eight Eldor ignition coil packs, genuine spark plugs, and dielectric spark plug boot protection - Assembled By ECS - Audi

Includes eight Eldor ignition coil packs, genuine spark plugs, and dielectric spark plug boot protection 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5385825
Mfg#:
0P29056012KT2
Ships in 2 Business Days
ON SALE! SAVE 11%
$513.99

This product was last offered at the strikethrough price on
03-05-2026

$458.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo 4M Audi SQ7/SQ8/RSQ8 Resonator Delete

ES#4908532 - CTS-EXH-TP-0027 - CTS Turbo 4M Audi SQ7/SQ8/RSQ8 Resonator Delete - This upgrade delivers a deeper, throatier exhaust tone while maintaining drivability and minimizing drone! - CTS - Audi

This upgrade delivers a deeper, throatier exhaust tone while maintaining drivability and minimizing drone!

Brand:
CTS - Corporate Logo
ES#:
4908532
Mfg#:
CTS-EXH-TP-0027
Special Order: No Guaranteed ETA
$899.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Drain Plug - Priced Each

ES#2827074 - N91167901 - Oil Drain Plug - Priced Each - Does not include the crush washer. M14x1.5 - Rein - Audi Volkswagen Porsche

Does not include the crush washer. M14x1.5 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2827074
Mfg#:
N91167901
In Stock
$4.58

This product was last offered at the strikethrough price on
04-16-2026

$4.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Higher Output Ignition Coils - Red - Set Of Eight

ES#4708320 - VWR900001-8KT - RacingLine Higher Output Ignition Coils - Red - Set Of Eight - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils.

Brand:
Racingline - Corporate Logo
ES#:
4708320
Mfg#:
VWR900001-8KT
In Stock
$440.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#4060279 - 4M0121321Q - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4060279
Mfg#:
4M0121321Q
Ships in 2 Business Days
8% off MSRP

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

$59.99

This product was last offered at the strikethrough price on
08-11-2026

$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

4.0T Water Pump And Thermostat Replacement Kit

ES#5386436 - 0P2121014KT1 - 4.0T Water Pump And Thermostat Replacement Kit - Includes everything you need to replace your water pump and thermostat. - Assembled By ECS - Audi Porsche

Includes everything you need to replace your water pump and thermostat. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5386436
Mfg#:
0P2121014KT1
Back Ordered
Auto Notify
ON SALE! SAVE 13%
$977.99

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

$855.07 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

GT1 PRO C-3 Engine Oil (5w-30) - 5 Liter

ES#4023579 - 80238000488 - GT1 PRO C-3 Engine Oil (5w-30) - 5 Liter - High performance engine oil for passenger vehicles - Fuchs - Audi Volkswagen

High performance engine oil for passenger vehicles

Brand:
Fuchs - Corporate Logo
ES#:
4023579
Mfg#:
80238000488
Ships in 1 day
$70.99 USD
Free Shipping
on orders $49 and up

RacingLine Higher Output Ignition Coil - Grey - Priced Each

ES#4708245 - VWR900002 - RacingLine Higher Output Ignition Coil - Grey - Priced Each - Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils. - Racingline - Audi Volkswagen

Delivers greater energy output, ensuring a stronger and more consistent spark. A simple plug-and-play upgrade over the OE factory coils.

Brand:
Racingline - Corporate Logo
ES#:
4708245
Mfg#:
VWR900002
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure fuel Pump - Priced Each

ES#4020380 - 0P2127026A - High Pressure fuel Pump - Priced Each - Fuel pump located on top of the engine - Genuine Volkswagen Audi - Audi

Fuel pump located on top of the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4020380
Mfg#:
0P2127026A
Ships in 4 Business Days
5% off MSRP

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

$792.99

This product was last offered at the strikethrough price on
08-11-2026

$752.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor

ES#4708503 - 079907660A - Oil Level Sensor - Mounted on the bottom of the oil pan - Vemo - Audi

Mounted on the bottom of the oil pan

Brand:
Vemo - Corporate Logo
ES#:
4708503
Mfg#:
079907660A
In Stock at Vendor
$145.99

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

$141.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Engine Air Filter

ES#4304616 - FB01023 - High Flow Engine Air Filter - Keep your engine running smooth - BMC - Audi Porsche

Keep your engine running smooth

Brand:
BMC - Corporate Logo
ES#:
4304616
Mfg#:
FB01023
In Stock at Vendor
$320.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Transmission Mount

ES#4830393 - CTS-TM-B8-65D - Sport Transmission Mount - Upgrade is designed to enhance the performance and power delivery with a stiffer 65A mount - CTS - Audi

Upgrade is designed to enhance the performance and power delivery with a stiffer 65A mount

Brand:
CTS - Corporate Logo
ES#:
4830393
Mfg#:
CTS-TM-B8-65D
Ships in 7 Business Days
$34.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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