Rein BMW Coolant & Radiator Hoses for BMW 5 Series E39 (1996-2003)

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We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.
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BMW M52 M54 Water Pipe
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T#:594294
Part#: 11537502525
In Stock
$ 55.99 USD
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BMW M52 M54 Water Pipe is an essential replacement part designed to ensure long-term reliability and optimal performance for your BMW's cooling system. Engineered to replace cracked or broken coolant pipes, this high-quality water pipe from Turner Motorsport guarantees a perfect fit and dependable service. Investing in this replacement pipe helps prevent overheating and potential engine damage, maintaining your vehicle's performance and longevity.

  • Reliable replacement: Designed to replace cracked or broken coolant pipes for improved engine cooling.
  • Optimal fitment: Engineered to ensure a perfect fit and seamless installation.
  • Durable construction: Built with high-quality materials to withstand engine temperatures and environmental conditions.
  • Preventative maintenance: Helps avoid overheating and potential engine damage by ensuring a reliable coolant flow.
  • Vehicle compatibility: Specifically designed for BMW M52 and M54 engine models.

Upgrade your BMW’s cooling system with the BMW M52 M54 Water Pipe from Turner Motorsport for enhanced reliability and performance.

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Heater Inlet Pipe
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T#:594330
Part#: 11531705210
In Stock
$ 41.99 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.
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OEM Coolant Return Pipe from Water Pump Hose to Transmission Cooler T...
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T#:6945
Part#: 11531711384
In Stock at Vendor
$ 68.99 USD
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$ 68.99 USD
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This is the cooling system return hose that goes from the automatic transmission cooling thermostat to the hose that comes off the lower water pump outlet.1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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E39 Upper Radiator Hose - E39 525i 528i 530i
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T#:4473
Part#: 11531705223
Ships in 1-2 days
$ 45.99 USD
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This cooling hose goes from the upper radiator port to the water pump. It includes a new bleed screw.

This item fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i
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Rein Radiator Hose - Lower - E39
For vehicles with production date from 09/1998
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T#:341242
Part#: 11531705224
Ships in 2 Business Days
$ 37.99 USD
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$ 37.99 USD
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Includes retaining clips
Expansion Tank Hose
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T#:375747
Part#: 11531438632
Ships in 2 Business Days
$ 24.99 USD
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OEM Rein Coolant Hose - E38 E39 M62 4.4L
For vehicles with production date from 09/1998
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T#:375752
Part#: 11537511207
In Stock at Vendor
$ 25.80 USD
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$ 25.80 USD
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Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.
BMW Radiator Hose Kit - 11537505229
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T#:46719191
Part#: CHK0008P
Ships in 4 Business Days
$ 61.99 USD
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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.
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OE Rein Lower Radiator Hose - E39 540i, E38 740i/IL 1996-1998 ...
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T#:374352
Part#: 11531741409
Ships in 4 Business Days
$ 17.99 USD
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This item fits the following BMWs:    
1997-1998   E39 BMW   540i  
1996-1998   E38 BMW   740i 740il 

Rein Expansion Tank Hose - E39
For vehicles with production date from 09/1998
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T#:375748
Part#: 11531438633
In Stock
$ 18.99 USD
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$ 18.99 USD
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Runs from the expansion tank to auxiliary water pump
Rein Coolant Bleeder Screw CHW1575 - Priced Each
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T#:591955
Part#: 17111712788
In Stock
$ 4.99 USD
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Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.
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Rein Expansion Tank Hose - E31, E38, E39
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T#:375756
Part#: 11531741404
In Stock
$ 8.45 USD
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Connects the expansion tank to the radiator


OEM Rein Lower Radiator Hose - E39 528i
For vehicles with production date up to 09/1998
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T#:349032
Part#: 11531740481
Ships in 2 Business Days
$ 14.99 USD
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$ 14.99 USD
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Runs from the radiator to the thermostat housing. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.
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BMW Radiator Hose - 11531705224
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T#:46719192
Part#: CHK0005
In Stock at Vendor
$ 43.99 USD
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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.
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OEM Rein Upper Radiator Hose - E39 528i (up to 09/1998)
For vehicles with production date up to 09/1998
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Rein - Corporate Logo
T#:349033
Part#: 11531740832
Ships in 2 Business Days
$ 17.99 USD
Free Shipping on orders $49 and up
$ 17.99 USD
Free Shipping on orders $49 and up
Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

OE Rein Upper Radiator Hose - E39 540i, E38 740i/IL 1996-1998 ...
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T#:6976
Part#: 11531745595
Ships in 4 Business Days
$ 16.99 USD
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ENGINE WATER HOSE 11531745595.--

This item fits the following BMWs:
BMW 5 Series - 540i, 540i Wagon
BMW 7 Series - 740i, 740iL

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OEM BMW Engine Return Hose 11531744054
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T#:6975
Part#: 11531744054
In Stock at Vendor
$ 19.99 USD
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OEM BMW ENGINE RETURN HOSE 11531744054.--

This item fits the following BMWs:
BMW 5 Series - 528i, 528i Wagon

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Rein O-RING 14.4X3.0 - E38, E39
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T#:379805
Part#: 11537501777
Ships in 4 Business Days
$ 6.99 USD
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$ 6.99 USD
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Rein Coolant Overflow Hose
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T#:19458
Part#: 17111427156
Ships on Jul 28, 2026
$ 5.99 USD
Free Shipping on orders $49 and up

Rein Coolant Overflow Hose is designed to meet the highest standards of performance and durability for your vehicle's cooling system. This high-quality hose ensures the proper transfer of excess coolant from the engine to the overflow reservoir, preventing overheating and ensuring optimal engine performance. Manufactured from reinforced rubber materials, the Rein Coolant Overflow Hose guarantees long-lasting reliability and precise fitment for various vehicle makes and models. It’s the perfect upgrade or replacement for worn-out hoses in any cooling system.

Available through Turner Motorsport, this coolant overflow hose is rigorously tested to withstand extreme temperatures, pressures, and daily use. If you’re looking to maintain or improve your car's cooling efficiency, the Rein Coolant Overflow Hose is an essential component.

  • Precision engineered for a perfect fit
  • Manufactured from durable, reinforced rubber
  • Designed to withstand high temperatures and pressures
  • Improves cooling system efficiency and prevents overheating
  • Easy installation with OE-spec dimensions
  • Available at Turner Motorsport, trusted for automotive parts

Enhance your vehicle's performance and reliability by replacing your old coolant hose with the Rein Coolant Overflow Hose today.

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Rein Coolant Hose - E39
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T#:379777
Part#: 64218391003
Special Order: No Guaranteed ETA
$ 31.99 USD
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$ 31.99 USD
Free Shipping on orders $49 and up
Hose that runs from the engine block to the water valve. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.
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