Water Pumps

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Replacement parts, includes gasket. Our most popular units are listed below, please call or email if you can't find your application. Notes:

• We replace M50-engine pumps that originally came with plastic impellers with aftermarket parts with metal impellers. The original pump is a failure item - our metal versions have proven to have a longer life.
• We recommend a Genuine BMW pump for the E30M3, but we do offer the popular Laso brand.
• "E36 E34, M50/52 S50/52" listing includes all E36 3 Series 6 cylinder models including M3 and  all twin cam E34 5 Series

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• SKU: w/GASKET

Other products in the category Cooling:

E46 3 Series Non-M Cooling System Overhaul Kit -- The BMW E46 3 Series Non-M's cooling system typically needs a complete overhaul around 100k miles to keep the engine reliable and safe from overheating. To make this job a simple process for our do-it-yourself customers we have comprised a complete . . .

E36 3 Series Cooling System Overhaul Kit -- This kit will not fit the Z3/MZ3. Kit includes all the common preventative maintenance parts to keep your cooling system from failing at an inconvenient time. Typically this service needs to be performed at 80-100,000 miles due to plastic fatigue . . .

OEM Replacement Radiators -- Our most popular applications are listed below and available online. Please call or email if you don't see what you need. We also stock less expensive radiators from Nissen, FHE, and others for some applications - please contact us for pricing. Nissen . . .

PWR Aluminum Radiator, E46 M3 -- PWR is the leading Australian radiator manufacturer with applications ranging from OEM production radiators to high end performance parts. The PWR racing pedigree is proven every year as the supplier to 95% of the cars in the Australian V8-Supercar . . .

BWSport E30/E36 3 Series Aluminum Radiator Kit -- The BWSport all aluminum radiator is a direct replacement that uses factory mounting points, fan shroud, and hoses. Our alloy radiator does not increase fluid capacity or surface area but is merely a heavy duty version of the factory specs. End-tanks . . .

PWR Aluminum Radiator, E36 and 1989+ E30 325i -- PWR is the leading Australian radiator manufacturer with applications ranging from OEM production radiators to high end performance parts. The PWR racing pedigree is proven every year as the supplier to 95% of the cars in the Australian V8-Supercar . . .

Fluidyne Aluminum Radiator, E36 and 1989+ E30 325i -- The BMW E36 stock radiator has an aluminum core, but the end tanks are make out of plastic which gets brittle and breaks over time, often in an inopportune moment. The full aluminum core and tank construction used in these Fluidyne units will prevent . . .

PWR Aluminum Radiator, E30 M3 -- PWR is the leading Australian radiator manufacturer with applications ranging from OEM production radiators to high end performance parts. The PWR racing pedigree is proven every year as the supplier to 95% of the cars in the Australian V8-Supercar . . .

C&R Aluminum Racing Radiator, E46 Low-Mount -- This is the radiator we used on our E46 World Challenge cars and currently use in E46 M3 and other E46 fitments.  Increase cooling capacity and lower center of gravity with this dual-pass piece.  Also allows mounting of oil cooler and/or intake . . .

Coolant Hose Kit -- These kits are more complete than what you'll find elsewhere, including all but the very small lines where bulk hose is used. Kits are also available without the heater core hoses or the throttle body heating hoses, recommended for those who plan to block . . .

Radiator Hoses - 3 Series and Z3 -- Stock replacement hoses. NOTES: E30 318is (M42) includes BOTH lower hoses E46 and newer Z3 hoses include plastic ends

BWSport Silicone Hose Kits -- These BimmerWorld hose kits are designed to replace the original equipment hoses in your performance BMW car. Silicone hoses (3 layer polyester core) are much more durable than stock, hold more pressure, and retain their flexibility longer. Kit . . .

Samco Silicone Hose Kits -- The Samco Sport hose kits are designed to replace original equipment in a wide range of performance vehicles, both in motorsport and fast road use. Superb integrity and superior performance reduces the risk of component failure and enables higher temperatures . . .

Stewart Components Performance BMW Water Pump - E36/E46 -- Now with a Limited Lifetime Warranty! click for details Absolutely the best water pump ever produced for a BMW car. Stewart Components is the leading producer of water pumps for NASCAR, Ford and Chevy V-8 domestic racers, as well as many newer electric . . .

Water Pump Shaft Nut -- This is a small aluminum nut used when the stock water pump driven fan is removed. It will protect the threads on the end of your water pump from damage and give a clean nicer appearance to the front of your engine. These are a great addition to our . . .

Aluminum Thermostat Housing -- The factory produced these parts in plastic, which is good for a few years. But eventually, the flexibility fades and the plastic becomes brittle. This means this part will crack and break - often leaving you stuck. Replace the factory piece with . . .

Thermostat -- Other models available, please call for fitment.

Performance Thermostat - E36 -- Cooler engines make more power and reduce stress on the cooling system. E36 cars came stock with either 88 or 92 degree C thermostats. Fits all 1992-1998 323, 325, 328, and 6cyl Z3, all E36 M3, and S52 MZ3.

Motorsport Thermostat - E46 M3/ E36 Euro M3 -- A must for a tracked car in an area with higher temperatures. We have found that the cooler you can make these engines run, the more power you will have. Your car may take longer to get warm in the winter in colder areas of the country. Fits all . . .

Radiator Cap

Brass Radiator Bleeder Screw -- An inexpensive upgrade when rebuilding your coolant system! BMW's plastic coolant system components are known to become brittle as the mileage accumulates and can fail at unexpected times, especially at the track! These brass bleeder screws replace your . . .

Replacement Coolant Expansion Tanks -- For replacement of aged, cracked, or otherwise deformed coolant expansion tanks. Recommended replacement interval is 100,000 miles.

E36/Z3 6-Cyl Engine Fan Delete Kit -- This simple kit allows you to remove your engine cooling fan. By lowering your engine operating temperature with a cooler thermostat and turning on your electric auxiliary fan at a lower temperature, proper engine cooling is still maintained, without . . .

SPAL Electric Fans -- Spal USA makes the best electric fans in the industry. These electric fans are great options for replacing your existing clutch fan, adding extra flow to a differential cooler, intercooler, and any other heat exchanger. Wiring and mounting kits . . .

SPAL 16" Fan Shroud Gasket -- SPAL 16" fan gasket is great for direct mounting a fan to the radiator as it will not damage the fragile alloy core. Fits all 16" SPAL fans available on our website. Adds 10mm to fan depth so take this into consideration when measuring . . .

Electric Fan Quick Mount Kit -- Works similar to a zip-tie. 4 straps, mounting feet, and pads included per kit.

SPAL Fan Bracket and Strap Mounting Kit -- This SPAL fan mounting kit includes four bracket/strap assemblies that snap directly into any SPAL electric fan.  All four straps are then properly secured to the heat exchanger or radiator for an factory-like fitment. Brackets are 20cm long for . . .

SPAL Fan Relay, Thermostat, and Wiring Kits -- SPAL's relay wiring kits are a must-have when installing an electric fan. The kits are designed to safely integrate with OEM wiring and incorporate printed wires for easy installation. The sensor is 3/8" NPT and has an optional switch temperature . . .

SPAL Automatic Programmable Fan Controller VER 3 -- SPAL's Programmable Fan Controller is the ideal way to control your fan's operation. Simply choose the Low and High temperature settings you desire. When the low temperature setting is reached the fan begins spinning at 50% speed. As the engine temperature . . .

E36 Euro Coolant Reservoir Kit -- Perfect for race applications where a catch tank and overflow is required. Also aids in bleeding air from the coolant system. Includes reservoir and coolant cap. Install kit includes all hoses, pipes, and tubes, as well as a mounting kit to install . . .

M50 Coolant Block-Off Plate -- Block-off plate installs in rear of head for use with Euro coolant plumbing on US engines or for custom race plumbing. Also an excellent place to tap for engine coolant temp. Precision-cut aluminum. Fits all US M50 6-cylinder engines, including . . .

Coolant Level Sensor -- Call for additional fitments.

OBD-I Coolant Adaptor Pipe -- Commonly used in OBD-I conversions. Adapt the OBD-II style hardpipe to the rubber hose version found on engines -1995. Our CNCed piece is a direct fit into your front timing cover. Seal with epoxy and you are done.

German OEM "Blue" Antifreeze -- We only suggest using German OEM engine antifreeze to keep your cooling system happy. We suggest mixing 1:1 with distilled water in street cars for added corrosion, anti-freezing, and waterpump lubrication abilities. Drivers looking for added cooling . . .

E28 M5 Oil Cooler -- Upgrade for better oil cooling in an E30 M3. Must have for the track! Genuine BMW part.

E30 M3 Oil Cooler

• E36 6-Cyl Euro Oil Cooler -- Install the oil cooler found in Euro E36 M3's in your E36 323, 325, 328, or M3 for better longevity and increased resistance to oil breakdown. A must for turbo and supercharged cars, and recommended for any track car that sees outside temps of 100+ degrees. . . .

• E36/E46 Oil Cooler Diverter Valve -- Extremely important on E36 Euro and S54 engines! The factory oil cooler (found stock on E36 Euro M3 and S54 engines, also a common upgrade for others) have a thermostat that closes off the cooler path until the engine builds temp, then runs only . . .