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Rein BMW Coolant & Radiator Hoses

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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Rein Water Hose With Metal Flange - F-Chassis - N55
Rein Water Hose With Metal Flange - F-Chassis - N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750147
Part#: CHU0632
In Stock
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$ 52.99 USD
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$ 52.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Rein Water Hose Problem Solver Kit - F chassis N55
Rein Water Hose Problem Solver Kit - F chassis N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750119
Part#: 11537598237
In Stock at Vendor
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$ 26.99 USD
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$ 26.99 USD
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Rein's Rubber Elbow Problem Solver Kit for the Coolant Feed Hose Replaces the Rubber End of the Hard Feed Line Without Having to Move the Exhaust or Replace the Entire Hard Line
Coolant Return Line
Coolant Return Line
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53856300
Part#: 11538650087
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$ 60.99 USD
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$ 60.99 USD
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Rein Automotive turbo hoses are engineered to meet these rigorous demands, providing the reliability required for both the track and the street.
Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55
Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750144
Part#: CHU0629
In Stock at Vendor
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$ 56.99 USD
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$ 56.99 USD
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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks
Rein Engine Inlet To Changeover Valve Hose
Rein Engine Inlet To Changeover Valve Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903280
Part#: 17128616914
Back Ordered
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$ 45.99 USD
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$ 45.99 USD
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This Rein Automotive coolant hose is an exact-fit aftermarket solution for the BMW "By-Pass Hose".
Rein Water Hose with Metal Flange - E60, E61 - N54
Rein Water Hose with Metal Flange - E60, E61 - N54
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750141
Part#: CHU0460
Ships in 3 Business Days
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$ 52.99 USD
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$ 52.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Rein Lower Radiator Hose - G30 G11 G14 G15 G16 - N63
Rein Lower Radiator Hose - G30 G11 G14 G15 G16 - N63
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55857776
Part#: 17128602669
In Stock at Vendor
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$ 49.99 USD
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$ 49.99 USD
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When it comes to keeping your vehicle on the road, a compromised cooling system is a severe vulnerability. Plastic and rubber degrade from constant heat cycling, leading to hairline cracks, swelling, and sudden failure.
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Rein Engine Coolant Hose - BMW G11, G30 5
Rein Engine Coolant Hose - BMW G11, G30 5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516262
Part#: CHE0993
Ships in 3 Business Days
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$ 64.99 USD
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$ 64.99 USD
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Restore your cooling system’s integrity with the Rein CHE0993 Engine Coolant Hose.
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55 ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53820908
Part#: CHE0985
Ships in 3 Business Days
New Item
$ 73.99

This product was last offered at the strikethrough price on
07-09-2026

$ 25.99 USD
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$ 25.99 USD
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The Rein coolant hose elbow is a targeted engineering solution designed to bypass the flaws of the factory assembly. By isolating the failure prone rubber section, it allows for replacement without disturbing the exhaust manifold or cylinder head connections. This is the strategic choice for teams and technicians who prioritize rapid turnaround and system integrity.
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Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X 5, 6, 7 ser.
Rein Engine Coolant Hose - Upper Radiator To Expansion Tank - BMW G3X...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52903294
Part#: 17129844478
Back Ordered
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$ 49.99 USD
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$ 49.99 USD
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Upgrade your cooling system with the Rein Automotive replacement coolant hose, engineered to meet or exceed the rigorous standards of your BMW.
Rein Radiator Expansion Tank Hose - G30 B48 B58
Rein Radiator Expansion Tank Hose - G30 B48 B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55821725
Part#: 17125A09423
In Stock at Vendor
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$ 18.99 USD
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$ 18.99 USD
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While the modern B48 and B58 powerplants are incredibly robust, BMW’s choice of brittle plastics for their cooling loops remains a major weak link. This upper radiator vent hose runs constantly hot as it returns pressurized coolant back to the expansion tank. After years of being baked by engine bay heat, the thin plastic neck and internal quick-disconnect seals degrade. A hardened factory plastic line can snap at any moment, spraying coolant everywhere.
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Rein Water Hose With Metal Flange - E70, E71 - N55, N54
Rein Water Hose With Metal Flange - E70, E71 - N55, N54
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53750149
Part#: CHU0633
Ships in 3 Business Days
New Item
$ 56.99 USD
Free Shipping on orders $49 and up
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$ 56.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Water Hose
Water Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616352
Part#: 17127599452
Ships in 3 Business Days
New Item
$ 63.99 USD
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$ 63.99 USD
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Rein Automotive cooling hoses are designed as precision OEM-quality replacements that withstand the rigorous demands of hard driving.
Rein Lower Radiator Hose - G3x G1x
Rein Lower Radiator Hose - G3x G1x
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58489956
Part#: 17128602613
Ships in 3 Business Days
New Item
$ 44.99 USD
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$ 44.99 USD
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Protect your engine against thermal breakdown and maintain precise cooling system pressure with a Rein Lower Radiator Hose. Engineered as a direct fit replacement for degradation prone factory rubber hoses, this coolant line connects the lower radiator circuit to ensure steady fluid circulation under heavy driving conditions. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure spikes, ozone exposure, and chemical breakdown.
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Rein Turbocharger Coolant Supply Line - BMW B58 Gen2
Rein Turbocharger Coolant Supply Line - BMW B58 Gen2
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58307569
Part#: 11538650086
Ships in 3 Business Days
New Item
$ 72.00 USD
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$ 72.00 USD
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Supplies coolant to the turbocharger
Rein Junction Heat Hose - F3x F22 G30 G12 G01 G02 B58
Rein Junction Heat Hose - F3x F22 G30 G12 G01 G02 B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58563047
Part#: 11538606278
Ships in 3 Business Days
New Item
$ 38.99 USD
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$ 38.99 USD
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Protect your engine against thermal degradation and maintain precise cooling system pressure with a Rein Heat Exchanger Return Hose. Engineered as a direct fit replacement for failure prone factory coolant lines, this hose routes coolant through the heat exchanger assembly to prevent thermal spikes under heavy load. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure surges, oil exposure, and cracking across high output 3.0L inline six engine bays.
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Upper Radiator Coolant Hose
Upper Radiator Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58489958
Part#: 17128654834
Ships in 3 Business Days
New Item
$ 65.99 USD
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$ 65.99 USD
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Protect your engine against severe heat soak and maintain precise cooling system pressure with a Rein Upper Radiator Hose. Engineered as a direct fit replacement for degradation prone original equipment hoses, this upper radiator line transfers high temperature coolant straight to the main radiator. Manufactured with high grade heat resistant EPDM rubber and OEM style quick connect fittings, it provides exceptional resistance to internal pressure spikes, ozone degradation, and chemical breakdown under demanding driving conditions.
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Rein Expansion Tank Coolant Hose - G20 G22 G23 G26 G42 (B46 B48)
Rein Expansion Tank Coolant Hose - G20 G22 G23 G26 G42 (B46 B48) ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58307536
Part#: 17128654824
Ships in 3 Business Days
New Item
$ 26.99 USD
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$ 26.99 USD
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Prevent catastrophic cooling system failure and maintain optimal system pressure with a Rein Expansion Tank Vent Line. Engineered as a direct fit replacement for brittle factory expansion tank lines, this vent hose routes pressurized coolant vapor from the cylinder head back to the expansion reservoir. Manufactured with durable heat resistant materials and factory style quick disconnect fittings, it ensures a tight seal against pressure drops and prevents fluid loss.
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Coolant Hose
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616346
Part#: 17128620944
Ships in 3 Business Days
New Item
$ 43.99 USD
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$ 43.99 USD
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Keep your European powertrain running at optimal operating temperatures with a high-grade coolant hose replacement.
Rein Coolant Expansion Tank Hose - F48 X1 F39 X2
Rein Coolant Expansion Tank Hose - F48 X1 F39 X2
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58489960
Part#: 17127646898
Ships in 3 Business Days
New Item
$ 26.99 USD
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$ 26.99 USD
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Protect your engine against thermal degradation and maintain precise cooling system pressure with a Rein Expansion Tank Vent Hose. Engineered as a direct fit replacement for failure prone original equipment vent lines, this coolant hose safely bleeds air and expanded fluid back to the reservoir. Manufactured with durable heat resistant materials and factory style quick connect fittings, it ensures a tight seal against pressure drops and prevents fluid loss across transverse B46, B48, and B38 engine bays.
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Rein Turbo Coolant Hose - F22/23, F30/34, F32/33, F36, G01, G02, G11, G30, G32 - B58
Rein Turbo Coolant Hose - F22/23, F30/34, F32/33, F36, G01, G02, G11,...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53856297
Part#: 11538611277
Ships in 3 Business Days
New Item
$ 44.99 USD
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$ 44.99 USD
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Rein Automotive Turbo Hoses are engineered to meet these rigorous standards, utilizing premium, OE-quality materials specifically formulated to withstand the extreme duty cycles of modern forced-induction systems.
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Coolant Hose
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616350
Part#: 11537643177
Back Ordered
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$ 64.99 USD
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$ 64.99 USD
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Maintain maximum thermal efficiency on the track or the street with this precision-engineered turbocharger coolant line by Rein.

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