BMW Coolant & Radiator Hoses for BMW 3 Series E46 (1999-2005)

Complete Cooling System Hose Kit - BMW E46 M52TU M54

10X Entries Into Our F80 M3 Sweepstakes

T#:15677507

Part#: 11531436410-KT

Ships in 6 Business Days

Sale - Save 10% $ 285.99

This product was last offered at the strikethrough price on
06-16-2026

$ 258.00 USD

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Sale - Save 10%

$ 285.99

This product was last offered at the strikethrough price on
06-16-2026

$ 258.00 USD

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The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. Turner Motorsport has created a kit that includes all of the necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system. See kit contents tab for a list of included components

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Gates Lower Radiator Hose - E46 3 Series (Not M3)

10X Entries Into Our F80 M3 Sweepstakes

T#:337992

Part#: 11531436408

Ships in 4 Business Days

Starting at $ 42.99 USD

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Starting at $ 42.99 USD

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OEM Replacement Lower Radiator Hose for E46 3 series (Not M3). We recommend replacing the Coolant Temperature Sensor while replacing this hose as the original sensor is often damaged while trying to remove it from the old hose.

This lower radiator hose fits the following BMWs:
1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i
1999-2000 E46 3 Series Coupe/Conbertible - 323Ci & 328Ci
2001-2005 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi
2001-2006 E46 3 Series Coupe/Convertible - 325Ci, 330Ci

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Heater Hard Line replacement Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15777306

Part#: 11531705210-KT

Ships on Nov 12, 2026

$ 259.99

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

$ 251.99 USD

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$ 251.99 USD

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Includes every thing needed to replace heater coolant hard lines, includes gaskets, hoses, and a URO aluminum return line!

ECS Cooling System Refresh Kit - Level 1

10X Entries Into Our F80 M3 Sweepstakes

T#:15677493

Part#: 11517527910-KT

In Stock

Sale - Save 4% $ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 324.43 USD

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Sale - Save 4%

$ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 324.43 USD

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Stop the problems before they arise. If you 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 plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by Turner including the basic parts that need replaced. Water pump with metal impeller Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses

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ECS Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15677514

Part#: 11281706545-KT

In Stock

Sale - Save 3% $ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.24 USD

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Sale - Save 3%

$ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.24 USD

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Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller ECS aluminum water pump pulley Fan switch Thermostat and thermostat housing 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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ECS Cooling System Refresh Kit - Level 2

10X Entries Into Our F80 M3 Sweepstakes

T#:15677545

Part#: 17111437361-KT

In Stock

Sale - Save 3% $ 472.99

This product was last offered at the strikethrough price on
05-03-2026

$ 457.56 USD

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Sale - Save 3%

$ 472.99

This product was last offered at the strikethrough price on
05-03-2026

$ 457.56 USD

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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 plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. GEBA water pump with metal impeller ECS aluminum water pump pulley Fan switch Thermostat & housing 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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Bavarian Autosport Water Pipe - E46 E39 Z4 Z3 (M52TU, M54)

10X Entries Into Our F80 M3 Sweepstakes

T#:638085

Part#: 11537502525

In Stock

Sale - Save 20% $ 50.99

This product was last offered at the strikethrough price on
05-03-2026

$ 40.79 USD

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Sale - Save 20%

$ 50.99

This product was last offered at the strikethrough price on
05-03-2026

$ 40.79 USD

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This plastic water pipe is positioned directly underneath your intake manifold. Due to its plastic construction, it is notorious for catastrophic failure. Rapid cooling loss and overheating are both direct results of this failure, posing permanent and lasting damage to the engine.

Replace your cracked/broken coolant pipe with this high-quality Bavarian Autosport component to ensure long-term reliability and perfect fitment.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Heater Inlet Pipe - E46 E39 E53 E83 E85 Z3

10X Entries Into Our F80 M3 Sweepstakes

T#:638080

Part#: 11531705210

In Stock

Sale - Save 20% $ 40.99

This product was last offered at the strikethrough price on
05-03-2026

$ 32.79 USD

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Sale - Save 20%

$ 40.99

This product was last offered at the strikethrough price on
05-03-2026

$ 32.79 USD

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This is the plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine. The plastic on this hose becomes brittle over time and eventually leads to failure. Replace yours with a brand new Bav Auto Heater inlet pipe to prevent catastrophic failure.

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Water Connection Pipe

10X Entries Into Our F80 M3 Sweepstakes

T#:15511839

Part#: 17111707817

In Stock

Sale - Save 20% $ 18.99

This product was last offered at the strikethrough price on
05-03-2026

$ 15.19 USD

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$ 18.99

This product was last offered at the strikethrough price on
05-03-2026

$ 15.19 USD

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Connects the radiator to the expansion tank

Meyle - Coolant Hose - Lower Right E46

5X Entries Into Our F80 M3 Sweepstakes

T#:40478120

Part#: 11531436408

Ships on Sep 16, 2026

$ 32.99 USD

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$ 32.99 USD

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Upgrade your BMW’s cooling system with a dependable solution that meets or exceeds OEM quality.

Coolant Flange - Rear/Engine Block

Fits European models only

5X Entries Into Our F80 M3 Sweepstakes

T#:55533481

Part#: 11531708808

Ships on Sep 16, 2026

$ 9.99 USD

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$ 9.99 USD

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This Meyle Original-grade replacement coolant flange is the perfect solution for refreshing your BMW’s cooling plumbing back to factory-fresh operation.

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BMW Coolant & Radiator Hoses for BMW 3 Series E46 (1999-2005)

Complete Cooling System Hose Kit - BMW E46 M52TU M54

Gates Lower Radiator Hose - E46 3 Series (Not M3)

Heater Hard Line replacement Kit

ECS Cooling System Refresh Kit - Level 1

ECS Cooling System Refresh Kit - Level 2

ECS Cooling System Refresh Kit - Level 2

Bavarian Autosport Water Pipe - E46 E39 Z4 Z3 (M52TU, M54)

Bav Auto Heater Inlet Pipe - E46 E39 E53 E83 E85 Z3

Water Connection Pipe

Meyle - Coolant Hose - Lower Right E46

Coolant Flange - Rear/Engine Block

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