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Audi A4 Engine Parts & Accessories

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Coolant Temperature Sensor - 2 Pin

ES#2627557 - 025906041A - Coolant Temperature Sensor - 2 Pin - Blue sensor used by the ECU to control engine fueling - Rein - Audi Volkswagen

Blue sensor used by the ECU to control engine fueling 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-007800 up to VIN 8D-X-199999, splits are in the 1998/1999 model years

Brand:
Rein - Corporate Logo
ES#:
2627557
Mfg#:
025906041A
Ships on Sep 16, 2026
Auto Notify
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2535170 - 1J0121321B - Expansion Tank Cap - Keep proper pressure in your coolant system - URO - Audi Volkswagen

Keep proper pressure in your coolant system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535170
Mfg#:
1J0121321B
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter - Priced Each

ES#3149762 - 068115561B - Oil Filter - Priced Each - Larger capacity oil filter - NPN - Audi Volkswagen

Larger capacity oil filter

Brand:
NPN - Corporate Logo
ES#:
3149762
Mfg#:
068115561B
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up

Oil Cap

ES#2866232 - 06C103485N - Oil Cap - Ensure a proper seal and good looks with this new cap - Febi - Audi Volkswagen

Ensure a proper seal and good looks with this new cap We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866232
Mfg#:
06C103485N
In Stock at Vendor
$11.26

This product was last offered at the strikethrough price on
05-29-2026

$9.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Nut - Priced Each

ES#252222 - N01100840 - Hex Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
252222
Mfg#:
N01100840
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Spray Jet - Priced Each

ES#248896 - 06b103154 - Oil Spray Jet - Priced Each - Sprays oil beneath the piston for lubrication - Genuine Volkswagen Audi - Audi Volkswagen

Sprays oil beneath the piston for lubrication Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
248896
Mfg#:
06B103154
In Stock
ON SALE!
$118.21

This product was last offered at the strikethrough price on
08-26-2026

$109.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#1598498 - 06E903137AC - Accessory Belt - Keep your accessories working with a new drive belt - Genuine Volkswagen Audi - Audi

Keep your accessories working with a new drive belt

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1598498
Mfg#:
06E903137AC
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.

$118.99

This product was last offered at the strikethrough price on
08-30-2026

$108.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit - With ECS Magnetic Drain Plug

ES#2731738 - MK44C3KKT3 - Oil Service Kit - With ECS Magnetic Drain Plug - 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 10X Entries Into Our F80 M3 Sweepstakes
Engine codes ATW & AWM. Engine code AEB from VIN 8D-X-200001, split is in the 1999 model year (or with the updated oil pan)

Brand:
Assembled By ECS - Corporate Logo
ES#:
2731738
Mfg#:
MK44C3KKT3
Ships in 5 Business Days
ON SALE!
$112.99

This product was last offered at the strikethrough price on
08-19-2026

$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Diverter Valve

ES#4849715 - 06H145710J - Diverter Valve - Revised diaphragm-based diverter valve - Vemo - Audi Volkswagen

Revised diaphragm-based diverter valve

Brand:
Vemo - Corporate Logo
ES#:
4849715
Mfg#:
06H145710J
Special Order: No Guaranteed ETA
$108.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#467337 - N10063205 - Hex Bolt - Priced Each - Install new hardware with your new parts. M8x20 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M8x20 Manual transmissions only. Used for securing the transmission mounts

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467337
Mfg#:
N10063205
In Stock
3% off MSRP

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

$4.86

This product was last offered at the strikethrough price on
06-26-2026

$4.72 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Priced Each

ES#465681 - N01021533 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x15 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x15 Engine code ATW. Secures the secondary air pump bracket to the vehicle

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465681
Mfg#:
N01021533
In Stock
3% off MSRP

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

$3.38

This product was last offered at the strikethrough price on
08-30-2026

$3.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Voltage Regulator

ES#4849592 - 038903803E - Voltage Regulator - Maintains a constant voltage level by controlling the alternator's output. - Vemo - Audi Volkswagen

Maintains a constant voltage level by controlling the alternator's output. For Bosch style alternators

Brand:
Vemo - Corporate Logo
ES#:
4849592
Mfg#:
038903803E
Ships in 1 Business Day
$54.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Service Kit

ES#4013 - B518T3KKTLOFLDP - Oil Service Kit - Includes large Mann oil filter and Pentosin 5w-40 oil - Assembled By ECS - Audi Volkswagen

Includes large Mann oil filter and Pentosin 5w-40 oil 10X Entries Into Our F80 M3 Sweepstakes
Engine code AEB up to VIN 8D-X-199999, split is in the 1999 model year (with the original oil pan)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4013
Mfg#:
B518T3KKTLOFLDP
In Stock
ON SALE!
$111.45

This product was last offered at the strikethrough price on
08-18-2026

$108.11 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Spark Plug - Set Of Six

ES#2535685 - 5592kt - Spark Plug - Set Of Six - Copper cored plugs, OEM heat range. - NGK - Audi

Copper cored plugs, OEM heat range. We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
2535685
Mfg#:
5592KT
Ships in 1-2 days
$124.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Control Module

Brand:
Hitachi - Corporate Logo
ES#:
5396926
Mfg#:
4F0906093A
Back Ordered
$53.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2535177 - 8E0121403A - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - URO - Audi

Replace your cracked or faded expansion tank. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535177
Mfg#:
8E0121403A
Ships in 1 Business Day
$26.99 USD
Free Shipping
on orders $49 and up
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.

Let us help you find the parts that fit your Audi

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