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Rein BMW Water Pumps

The water pump is a known failure point on most BMWs, new and old. Older model BMWs come from the factory with a mechanical fan that features a plastic impeller. If your BMW still has a water pump with a plastic impeller, you should upgrade to one with a metal impeller to avoid future failure. New BMWs utilize an electric water pump that cost BMW millions of dollars to design - when it is working it is great, unfortunately these fail so regularly that we recommend replacing your electric water pump every 60,000 miles to avoid stranding yourself on the side of the road. We have hand selected the best OE suppliers for replacement water pumps so you don't have to pay the high cost of Genuine BMW. However, if you're someone who only puts Genuine BMW parts on your car, we understand - that's why we have those available for you as well.

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Rein Water Hose With Gasket - Water Pump To Engine Inlet
Rein Water Hose With Gasket - Water Pump To Engine Inlet
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T#:17804808
Part#: 11537584630R
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Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.
Rein Water Pump Service Kit - N20
Rein Water Pump Service Kit - N20
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T#:14023850
Part#: 11518635089-1
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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended
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Rein Water Pump - N63 S63
Rein Water Pump - N63 S63
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T#:393385
Part#: 11517548263
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In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust. Replace your water pump with Rein to get your cooling system back in check.
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Rein Water Pump O-Ring (Small) - E32, E34, E38, E39
Rein Water Pump O-Ring (Small) - E32, E34, E38, E39
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T#:379680
Part#: 11531710055
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$ 1.93 USD
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When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This specific ring is used when replacing water pump on cooling pipe to the water accumulator. There are two per car.
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Aluminum Screws for N52 N54 Water Pump
Aluminum Screws for N52 N54 Water Pump
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T#:2253
Part#: 11510392553
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$ 6.77 USD
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These aluminum water pump screws are single use and must be replaced each time they are removed. These are used on all 325i, 328i, and 330i with the BMW N51 N52 and N53 engines. They were also used on some early N54 engines that have rubber mounts on the water pump housing. Do not use these bolts if your N54 water pump has been replaced with a housing that does not have the rubber mounts.

In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

This item fits the following BMWs:
2008+ E82 BMW 128i 135i
2007+ E9X BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+ E60 BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+ X3 BMW X3 3.0i X3 3.0si
2006+ Z4 BMW Z4 3.0i Z4 3.0si
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OEM Rein Water Pump W/ Installation Kit - BMW E82/88 E9X N52 3.0L
OEM Rein Water Pump W/ Installation Kit - BMW E82/88 E9X N52 3.0L ...
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T#:45997535
Part#: WPS0502
In Stock at Vendor
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$ 770.77 USD
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$ 811.99

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Rein Electric Water Pump Replacement Kits offer a valuable solution to failure-prone cooling-related components on the N52 BMW engine platforms. At the heart of these kits are OEM electric water pumps, which are complemented by Rein's problem solver hoses.
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Water Pump
Water Pump
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T#:46478542
Part#: WPR0046
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$ 755.36 USD
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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553
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BMW Water Pump Kit - E9X/E8X N54/55
BMW Water Pump Kit - E9X/E8X N54/55
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Rein - Corporate Logo
T#:46616001
Part#: WPS0505
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$ 897.68 USD
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Late-model external water pumps are typically more dependable and easier to service, with no gasket or O-ring to worry about. Replacing higher-mileage units during routine cooling system maintenance is a smart way to add extra peace of mind. Includes: Water pump Thermostat assembly Water pump elbow Coolant hoses Necessary hardware
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Rein Water Pump Service Kit - N20
Rein Water Pump Service Kit - N20
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T#:14023854
Part#: 11518635089-2
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This product was last offered at the strikethrough price on
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$ 1,208.62 USD
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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended
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Rein Water Pump Service Kit - N20
Rein Water Pump Service Kit - N20
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T#:14023861
Part#: 11518635089-4
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$ 854.04 USD
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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended
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OEM Rein PRO Series Water Pump & Serpentine Belt Kit - BMW E60 535 N54 3.0L
OEM Rein PRO Series Water Pump & Serpentine Belt Kit - BMW E60 535 N5...
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T#:38161726
Part#: RSW0021
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$ 675.67 USD
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Includes a new electric water pump, serpentine belt, belt tensioners, and idler pulleys
Rein Water Pump Service Kit - N20
Rein Water Pump Service Kit - N20
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T#:14023856
Part#: 11518635089-3
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Kits include: water pump thermostat assembly head to thermostat hose w/ aluminum flange WP to engine hose WP to thermostat hose all necessary clamps and hardware This Rein water pump service kit addresses common coolant hose plastic flange failure and ensures that the water pump replacement repair is done right the first time. The water pump and thermostat are OEM Use of OE or Pentosin NF-G11 coolant is recommended
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BMW Water Pump Kit - 11517632426
BMW Water Pump Kit - 11517632426
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T#:46615999
Part#: WPS0507
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$ 913.54 USD
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Late-model external water pumps are typically more dependable and easier to service, with no gasket or O-ring to worry about. Replacing higher-mileage units during routine cooling system maintenance is a smart way to add extra peace of mind.

Late-model external water pumps have the advantage of being generally more reliable, while also being easier to service, not requiring a gasket or o-ring. Replacing high mileage units during cooling system services provides peace of mind.

Includes:

Water pump
Thermostat assembly
Water pump elbow
Coolant hoses
Necessary hardware

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Water Pump Service Kit
Water Pump Service Kit
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T#:38161728
Part#: 11515A05704
Ships on Jul 21, 2026
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$ 712.21 USD
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Rein Coolant Return Pipe - N62 N73
Rein Coolant Return Pipe - N62 N73
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T#:386411
Part#: 11511439976
Special Order: No Guaranteed ETA
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$ 14.24 USD
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This is the coolant return pipe on the back of the water pump on the N62 and N73 engines used in the E53 X5, E60 545/550, E63 645/650, E65 745/750, E70 X5, and F02 750. This pipe connects the water pump to the valley pan and it's a compression fitting (no o-rings). Whenever the water pump or valley pan are replaced this tube should also be replaced. This is one area where you don't want to go back and re-do your work because of a leaking fitting! In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.
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Water Pump O-Ring
Water Pump O-Ring
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T#:592886
Part#: 11511714519
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$ 8.71 USD
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