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BMW E46 Engine Coolant Lines

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Heater Inlet Pipe

ES#24836 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Genuine BMW - BMW

Runs from the front left side of the engine to the heater inlet

Brand:
Genuine BMW - Corporate Logo
ES#:
24836
Mfg#:
11531705210
In Stock
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#25061 - 11537502525 - Water Pipe - Connects return hose to engine block - Genuine BMW - BMW

Connects return hose to engine block

Brand:
Genuine BMW - Corporate Logo
ES#:
25061
Mfg#:
11537502525
In Stock
$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#4069274 - 11537502525 - Water Pipe - Connects return hose to engine block - Rein - BMW

Connects return hose to engine block 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069274
Mfg#:
11537502525
In Stock
ON SALE!
$55.99

This product was last offered at the strikethrough price on
08-31-2026

$53.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#4304643 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Runs from the front left side of the engine to the heater inlet 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304643
Mfg#:
11531705210
In Stock
ON SALE! SAVE 20%
$40.99

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

$32.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exact-fit Water Pipe Connecting Line

ES#3230761 - 013178ecs - Exact-fit Water Pipe Connecting Line - Connects the expansion tank to the upper radiator hose. Engineered in-house with perfectly formed fitment for a stronger, cleaner install. - ECS - BMW

Connects the expansion tank to the upper radiator hose. Engineered in-house with perfectly formed fitment for a stronger, cleaner install. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3230761
Mfg#:
013178ECS
In Stock
ON SALE! SAVE 25%
$159.99

This product was last offered at the strikethrough price on
06-13-2026

$119.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#4069336 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Rein - BMW

Runs from the front left side of the engine to the heater inlet 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069336
Mfg#:
11531705210
In Stock
ON SALE!
$42.39

This product was last offered at the strikethrough price on
08-31-2026

$40.27 USD
Free Shipping
on orders $49 and up

Water Pipe

ES#4304672 - 11537502525 - Water Pipe - Connects return hose to engine block - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Connects return hose to engine block 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304672
Mfg#:
11537502525
In Stock
ON SALE! SAVE 20%
$50.99

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

$40.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Water Pipe Connecting Line

ES#37983 - 17112229053 - E46 M3 Water Pipe Connecting Line - Connects the expansion tank to the upper radiator hose - Genuine BMW - BMW

Connects the expansion tank to the upper radiator hose

Brand:
Genuine BMW - Corporate Logo
ES#:
37983
Mfg#:
17112229053
Ships in 4 Business Days
1% off MSRP

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

$96.35

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

$95.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Connection Pipe

ES#4669253 - 17111707817 - Water Connection Pipe - Connects the radiator to the expansion tank - Bavarian Autosport - BMW

Connects the radiator to the expansion tank 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4669253
Mfg#:
17111707817
Ships on Sep 22, 2026
Auto Notify
ON SALE! SAVE 20%
$18.99

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

$15.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pipe

ES#2828391 - 11537502000 - Aluminum Water Pipe - From water pump to expansion tank hose - featuring a lifetime warranty. No more cracked plastic pipe! - URO Premium - BMW
ECS Tuning recommends this product.

From water pump to expansion tank hose - featuring a lifetime warranty. No more cracked plastic pipe! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO Premium - Corporate Logo
ES#:
2828391
Mfg#:
11537502000
In Stock
$82.99

This product was last offered at the strikethrough price on
04-28-2026

$70.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#4069398 - 11537502000 - Water Pipe - From water pump to expansion tank hose - Rein - BMW

From water pump to expansion tank hose 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069398
Mfg#:
11537502000
In Stock
ON SALE!
$39.99

This product was last offered at the strikethrough price on
08-31-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 Pipe

ES#25171 - 11537830714 - E46 Pipe - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
25171
Mfg#:
11537830714
Ships in 3 Business Days
1% off MSRP

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

$155.99

This product was last offered at the strikethrough price on
09-03-2026

$154.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#4818540 - 11537502000 - Water Pipe - From water pump to expansion tank hose - Bremmen Parts - BMW

From water pump to expansion tank hose 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818540
Mfg#:
11537502000
In Stock
ON SALE!
$36.99

This product was last offered at the strikethrough price on
08-23-2026

$34.22 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#25169 - 11537830712 - O-Ring - Priced Each - Found in the connection between the water pump and the coolant pipe that attaches to the back of the water pump - Genuine BMW - BMW

Found in the connection between the water pump and the coolant pipe that attaches to the back of the water pump

Brand:
Genuine BMW - Corporate Logo
ES#:
25169
Mfg#:
11537830712
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pipe

ES#4017792 - 11537502525PRM - Aluminum Water Pipe - Connects return hose to engine block - URO Premium - BMW

Connects return hose to engine block 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO Premium - Corporate Logo
ES#:
4017792
Mfg#:
11537502525PRM
In Stock
$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pipe

ES#25060 - 11537502000 - Water Pipe - From water pump to expansion tank hose - Genuine BMW - BMW

From water pump to expansion tank hose

Brand:
Genuine BMW - Corporate Logo
ES#:
25060
Mfg#:
11537502000
In Stock
ON SALE! SAVE 75%
$221.99

This product was last offered at the strikethrough price on
04-05-2026

$54.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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