BMW E46 323i M52 2.5L Cooling Expansion Tank Parts

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

37772

Mfg#:

17111707777

$21.99 USD

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on orders $49 and up

Lifetime Replacement

Mounts to the side of the radiator for retaining the expansion tank 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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For vehicles with automatic transmission only

Brand:

ES#:

3504759

Mfg#:

17111436251

$80.99

This product was last offered at the strikethrough price on
10-22-2026

$62.79 USD

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on orders $49 and up

Lifetime Replacement

Fits various components in the cooling system Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3448838

Mfg#:

17111711987

$2.99 USD

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on orders $49 and up

Lifetime Replacement

Replace when performing cooling service. 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

205244

Mfg#:

17111742231

$17.99

This product was last offered at the strikethrough price on
10-22-2026

$13.69 USD

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on orders $49 and up

Lifetime Replacement

Does not include cap or coolant level sensor Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

2874170

Mfg#:

17117573781

$140.99 USD

Add to Cart

Free Shipping

Lifetime Replacement

Mounts to the side of the radiator for retaining the expansion tank 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission only

Brand:

ES#:

2708362

Mfg#:

17111436251

$53.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Does not include cap or coolant level sensor 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:

ES#:

2534594

Mfg#:

17137787039

Connects the expansion tank to the radiator 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

2622976

Mfg#:

17111723521

$16.99

This product was last offered at the strikethrough price on
10-22-2026

$7.95 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Replace when performing cooling service. 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:

ES#:

2187552

Mfg#:

17111742231

$11.99

This product was last offered at the strikethrough price on
08-13-2026

$8.99 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

3984619

Mfg#:

17111707777

$6.99 USD

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on orders $49 and up

Lifetime Replacement

Shows information on how to read the fluid level Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

37721

Mfg#:

17111439721

$20.99 USD

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on orders $49 and up

Lifetime Replacement

Monitors the coolant level in the expansion tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

1599539

Mfg#:

61318360855

$16.99 USD

Add to Cart

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on orders $49 and up

Lifetime Replacement

Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

4860936

Mfg#:

17117639022

Replace worn or missing pieces. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

2814079

Mfg#:

17111742231

$9.17 USD

Add to Cart

Free Shipping

on orders $49 and up

Lifetime Replacement

Locks the expansion tank into the mounting plate via the large hole in the bottom of the tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:

ES#:

2814070

Mfg#:

17111707777

$6.11 USD

Add to Cart

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on orders $49 and up

Lifetime Replacement

Connects the radiator to the expansion tank Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
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Brand:

ES#:

4343477

Mfg#:

17111707817

$47.99 USD

Add to Cart

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on orders $49 and up

Lifetime Replacement