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Packaged by Turner BMW Coolant Expansion Tanks for BMW E46 M3 S54 (1999-2005)

On certain models, namely E36, E46, and E90, the factory BMW expansion tank is prone to either breaking at connection points or blowing apart altogether. If you're starting to feel like your expansion tank is on borrowed time, it's probably time to replace with either a direct OE replacement, or strengthen your cooling setup with an aluminum expansion tank - we offer numerous performance upgrades for your expansion tank. Especially if you're someone who likes to track your BMW, we recommend upgrading your expansion tank to avoid ruining your track day.

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Cooling System Refresh Kit - Level 2

T#:15744066

Part#: 11287837898-KT

Ships on Dec 7, 2026

Sale - Save 22% $ 808.99

This product was last offered at the strikethrough price on
07-15-2026

$ 627.95 USD

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Sale - Save 22%

$ 808.99

This product was last offered at the strikethrough price on
07-15-2026

$ 627.95 USD

Add to Wish List

BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. After the gauge reaches this critical area, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If your vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Saleri water pump with metal impeller ECS aluminum water pump pulley Fan switch Vaico Q+ thermostat - made in Germany! Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug

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Packaged by Turner BMW Coolant Expansion Tanks for BMW E46 M3 S54 (1999-2005)

Cooling System Refresh Kit - Level 2

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