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Volkswagen MK4 Engine Coolant Lines

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O-Ring - Priced Each

ES#4197 - N10139201 - O-Ring - Priced Each - O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55 - Rein - Audi Volkswagen

O-ring for each side of the plastic bypass pipe under intake. 34.5x3.55 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4197
Mfg#:
N10139201
In Stock
$4.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe

ES#275115 - 038121065BF - Coolant Pipe - Large water pipe that connects to various hoses - Genuine Volkswagen Audi - Volkswagen

Large water pipe that connects to various hoses For vehicles with BEW engine code and automatic transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275115
Mfg#:
038121065BF
Ships in 8 Business Days
7% off MSRP

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

$206.99

This product was last offered at the strikethrough price on
07-28-2026

$192.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#279291 - 06A121065AR - Water Pipe - Main water pipe connected to your engine block. Provides passage of coolant to oil cooler, expansion tank, heater core and more - Genuine Volkswagen Audi - Volkswagen

Main water pipe connected to your engine block. Provides passage of coolant to oil cooler, expansion tank, heater core and more For vehicles with a build date up to 07/14/2003

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279291
Mfg#:
06A121065AR
Ships in 1-2 days
6% off MSRP

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

$204.99

This product was last offered at the strikethrough price on
07-28-2026

$191.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307204 - 1J0121109C - Coolant Hose - Connects water pipe to lower port of expansion tank - Genuine Volkswagen Audi - Volkswagen

Connects water pipe to lower port of expansion tank For vehicles with ALH engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307204
Mfg#:
1J0121109C
Back Ordered
Auto Notify
6% off MSRP

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

$204.99

This product was last offered at the strikethrough price on
07-28-2026

$191.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Plastic Water Distribution Pipe

ES#4219 - 022121050 - Plastic Water Distribution Pipe - Pipe from back of water pump to thermostat housing, located under intake manifold. Commonly referred to as the crack pipe. - Genuine Volkswagen Audi - Audi Volkswagen

Pipe from back of water pump to thermostat housing, located under intake manifold. Commonly referred to as the crack pipe.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4219
Mfg#:
022121050
Ships in 1-2 days
7% off MSRP

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

$67.99

This product was last offered at the strikethrough price on
07-28-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#3194952 - 1J0122101AR - Coolant Hose - Connects adapter on upper radiator hose to water pipe which goes to the secondary radiator - Vaico - Volkswagen

Connects adapter on upper radiator hose to water pipe which goes to the secondary radiator We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission only

Brand:
Vaico - Corporate Logo
ES#:
3194952
Mfg#:
1J0122101AR
In Stock at Vendor
$59.99

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

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#279295 - 06A121065CA - Water Pipe - Main water pipe connected to your engine block. Provides passage of coolant to oil cooler, expansion tank, heater core and more - Genuine Volkswagen Audi - Volkswagen

Main water pipe connected to your engine block. Provides passage of coolant to oil cooler, expansion tank, heater core and more For vehicles with a build date from 07/15/2003

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279295
Mfg#:
06A121065CA
Ships in 8 Business Days
7% off MSRP

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

$173.99

This product was last offered at the strikethrough price on
07-28-2026

$161.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#2801566 - WHT006407 - Sealing O-Ring - Priced Each - Install a new o-ring for a proper seal. 20x3 - Rein - Audi Volkswagen

Install a new o-ring for a proper seal. 20x3 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with VIN up to 9M-Y-085 000 only, split is in the 2000 model year

Brand:
Rein - Corporate Logo
ES#:
2801566
Mfg#:
WHT006407
In Stock at Vendor
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#3235502 - 1J0121109C - Coolant Hose - Connects water pipe to lower port of expansion tank - Gates - Volkswagen

Connects water pipe to lower port of expansion tank For vehicles with ALH engine code only

Brand:
Gates - Corporate Logo
ES#:
3235502
Mfg#:
1J0121109C
Ships on Aug 18, 2026
$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BFI Billet Water Pipe

ES#3021908 - EBFI24VCP - BFI Billet Water Pipe - Bypass pipe located underneath intake manifold. Designed to be the last water pipe you'll need to replace. - Black Forest Industries - Audi Volkswagen

Bypass pipe located underneath intake manifold. Designed to be the last water pipe you'll need to replace.

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021908
Mfg#:
EBFI24VCP
Ships on Aug 20, 2026
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#2802124 - 1J0122096B - Coolant Hose - Connects to the transmission cooler - Rein - Volkswagen

Connects to the transmission cooler 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission only

Brand:
Rein - Corporate Logo
ES#:
2802124
Mfg#:
1J0122096B
Ships in 4 Business Days
$61.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307278 - 1J0122109CD - Coolant Hose - Connects water pipe to lower port of expansion tank - Genuine Volkswagen Audi - Volkswagen

Connects water pipe to lower port of expansion tank For vehicles with BEW engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307278
Mfg#:
1J0122109CD
In Stock at Vendor
$60.99

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

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#307254 - 1J0122073BG - Coolant Hose - From hard coolant pipe to heater core - Genuine Volkswagen Audi - Volkswagen

From hard coolant pipe to heater core For vehicles with VIN from 9M-1-095 001 only, split is in the 2001 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307254
Mfg#:
1J0122073BG
In Stock at Vendor
$55.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#3353262 - N90365302 - Sealing O-Ring - Priced Each - Genuine Porsche - Audi Volkswagen

Brand:
Genuine Porsche - Corporate Logo
ES#:
3353262
Mfg#:
N90365302
In Stock
ON SALE!
$3.99

This product was last offered at the strikethrough price on
06-15-2026

$3.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose

ES#248430 - 1J0122101AR - Coolant Hose - Oil cooler to auxiliary radiator water pipe. - Gates - Volkswagen

Oil cooler to auxiliary radiator water pipe.

Brand:
Gates - Corporate Logo
ES#:
248430
Mfg#:
1J0122101AR
In Stock at Vendor
$36.99

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

$35.99 USD
Free Shipping
on orders $49 and up

Water Distribution Pipe

ES#3098865 - 1J0121087D - Water Distribution Pipe - Used in the cooling system to connect two main radiator hoses and the hose to the throttle body - URO - Volkswagen

Used in the cooling system to connect two main radiator hoses and the hose to the throttle body 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AEG engine code only

Brand:
URO - Corporate Logo
ES#:
3098865
Mfg#:
1J0121087D
Ships in 2 Business Days
$6.90 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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