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BMW 325I Cooling & Heating

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Hayden Super Duty Electric Fans

Hayden Automotive is proud to introduce a new performance series of electric fans to their current offering—Super Duty electric fans. These high-quality electric fans are perfect for performance enthusiasts and off-roaders who want upgraded cooling performance. With four fan sizes available in your choice of either a pusher or puller design, there's a Hayden Super Duty electric fan that'll fit your performance cooling needs. Super Duty electric fan features: * Premium quality Italian design and manufactured construction * Available in both pusher or puller designs, in a choice of 9 in., 12 in., 14 in. and 16 in. diameters (please specify model when placing your order) * Compatible with all Hayden fan controllers * IP68 waterproof and dust proof rating * Straight blade design for maximum airflow performance * Includes mounting hardware for ease of installation

Not Yet Reviewed

$99.99

Hayden Electric Fans

As a primary cooling source, Hayden Automotive electric fans slightly increase horsepower and fuel economy when replacing fan clutches and fan assemblies. These thin fans are manufactured with reversible blades for pusher and puller operation. Hayden uses high-quality, long-life electric motors to ensure performance and durability. They come available in 10, 12, 14, and 16 in. diameters.

4.58 out of 5 stars ( 12 )

$72.99

Maradyne Pacesetter Medium-Profile Electric Fans

Maradyne Pacesetter medium-profile electric fans deliver economic efficiency for most any vehicle. Whether your vehicle is high performance or a daily driver, these S-blade designed fans will meet your needs. They are reversible, quiet, and feature glass-filled nylon construction with non-vented, medium-duty motors. They are available in a choice of diameters and each includes 90 degree mounting feet and a pigtail connector. Maradyne Pacesetter medium-profile electric fans offer a perfect fit for many projects and wallets.

5.0 out of 5 stars ( 2 )

$91.73

Four Seasons Electric Fan Kits

Get the chill factor for better engine performance with Four Seasons electric fan kits. These drop-in replacements have original equipment quality and connectors for a perfect fit that you do yourself, saving yourself time and money. These fans are made of durable, heavy-duty plastic to provide quiet operation and dependable service. Keep your engine cool to perform as it should with Four Seasons electric fan kits.

4.37 out of 5 stars ( 19 )

$67.99

$69.50

CSF Radiators

CSF radiators are offered in the industry's widest variety, servicing thousands of vehicle-specific and universal applications … including every brand from Acura to Volkswagen. Whether your radiator is copper-brass, plastic-copper-brass, plastic-aluminum, or all-aluminum, CSF has you covered with the same materials and style as OE. CSF manufactures the highest quality aftermarket replacement radiators, with the strongest and most efficient components available in the industry. All CSF radiators undergo a rigorous testing process in their state-of-the-art testing lab. CSF's procedures and requirements set the bar for cooling system reliability and performance: * Individually leak tested * Vibration-cycle tested * Thermal-cycle tested * Wind tunnel tested for optimal radiator core cooling efficiency * Burst pressure and impulse-cycle tested for strength * Salt spray tested for corrosion protection * 10 ft. box drop test to ensure packaging protection * 30-point fitment inspection on critical dimensions to ensure drop-in fit with no modifications (where applicable)

4.17 out of 5 stars ( 101 )

$90.99

$95.99

Mishimoto Thermostats

Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.

4.38 out of 5 stars ( 73 )

$68.95

$83.95

Mishimoto Mechanical Water Pumps

Water pump failure is one way to ruin your weekend cruise or track day. Stay on top of your BMW's maintenance by replacing your M50/M52/M54/S50/S52 water pump before it fails and overheats your beloved inline six. The engineers at Mishimoto have developed a high-quality replacement water pump to continue supporting E36/E46 customers in every aspect of their cooling system needs. The mechanical water pumps feature a durable cast aluminum body and a composite impeller for improved durability. Debates over impeller material are not uncommon. The Mishimoto team determined that their composite impeller provides optimal durability in extreme conditions, while being less taxing on internal bearings compared to a metal impeller unit. Along with robust construction, a new water pump O-ring is included for hassle-free installation. Additional notes: * Direct-fit replacement water pump for all BMW models with M50/M52/M54 and S50/S52 engines * Includes high-quality O-ring for a leak-free seal * Composite impeller provides optimal durability and reduces bearing wear * Restores cooling system performance and protects critical engine components * Ideal for repair or preventative maintenance * Mishimoto Lifetime Warranty * To further protect your cooling system and improve water pump lubrication, refill your system with Mishimoto Liquid Chill Synthetic Engine Coolant

Not Yet Reviewed

$72.95

Rein Automotive Thermostat Housings

Rein Automotive thermostat housings provide the fit and performance that the original manufacturer intended, if not better, thanks to their use of quality materials. The included thermostats (where applicable) are temperature-calibrated to have a consistent and precise response that suits the cooling system needs of each vehicle. Rein Automotive thermostat housings originate in molds cast directly from the OEM parts to meet the strict tolerances of the factory specifications, ensuring a smooth installation. Dozens of models are available for vehicles from the 1980s and up.

Not Yet Reviewed

$60.99

Beck/Arnley Engine Cooling Fan Clutches

Beck/Arnley offers engine cooling fan clutches for a range of applications. These replacement fan clutches help to keep your engine cool and operating its best.

Not Yet Reviewed

$70.99

$95.99

Clearance

Holstein Parts Blower Motor Resistors

Holstein Parts blower motor resistors offer superior coverage for many domestic and import vehicle applications. The blower motor resistor is an electrical component that is a part of the vehicle's interior heating and air conditioning system. A failed blower motor resistor can cause issues with the entire heating and air conditioning system's operation. Holstein Parts uses only the highest quality materials and engineering for truly built parts to match or exceed the OEM parts to help restore proper function. Select the Holstein blower motor resister model designed to fit your application needs.

Not Yet Reviewed

$70.99

OSC Automotive Air Conditioning Condensers

OSC Automotive air conditioning condensers will help to restore the cool air you're missing. Each condenser is designed to be a direct replacement for your vehicle, making installation quick and painless. OSC starts with the best raw materials, then meticulously assembles and tests each part, ensuring they will perform just like you demand. Don't suffer through a hot summer driving without cold air; order the A/C condenser recommended for your vehicle.

5.0 out of 5 stars ( 6 )

$79.99

$91.99

OSC Automotive Heater Cores

OSC Automotive heater cores are designed to OE form and function. These technically advanced cores are made from premium-grade aluminum and are direct replacements for copper units. The tubes are cadmium plated inside and out to prevent premature failure. Each heater core is individually pressure-tested. All necessary foam and accessories are included in each unit. Order the model designed to fit your application.

5.0 out of 5 stars ( 1 )

$85.99

Clearance

Dorman Thermostats

Replace your stock thermostat with new parts from Dorman. These quality components offer solution upgrades for your coolant outlets. Dorman offers thermostats for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostats from Dorman.

3.14 out of 5 stars ( 29 )

$66.95

Agility Auto Parts Heater Cores

Agility Auto Parts offers a complete line of automotive heater cores, covering 94 percent of all North American vehicle. They provide value in several ways, including increased thermal performance and resistance to corrosion. The HVAC cores use enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. These certified heaters meet or exceed OE specifications—and are "drop in fitment" checked in the actual vehicles HVAC heater module, so they're ready to be installed right out of the box. Agility Auto Parts heaters are engineered and manufactured under ISO TS16949 quality systems and are 100 percent leak-tested.

3.71 out of 5 stars ( 17 )

$91.99

Agility Auto Parts Air Conditioning Condensers

Agility Auto Parts offers a complete line of automotive condensers covering most of North American vehicle applications. These certified components meet or exceed the manufacturer's specifications, making them ready to install out of the box. Engineered and manufactured under ISO TS16949 quality system guidance, every APDI air conditioning condenser is 100 percent leak-tested for trouble-free operation!

3.5 out of 5 stars ( 8 )

$98.99

Dorman Coolant Reservoirs

Dorman coolant reservoirs are part of their line of OE solutions for your vehicle. They are quality-made replacements for your worn, cracked, or broken reservoirs. They collect excess coolant to prevent contaminating your engine compartment and the environment.

4.59 out of 5 stars ( 184 )

$69.95

$73.95

Hayden Fan Clutches

Do you need a replacement fan clutch? These fan clutches by Hayden Automotive are manufactured to ensure performance and durability. Hayden offers thermal, non-thermal, and heavy-duty series fan clutches that meet strict factory guidelines. All Hayden Automotive fan clutches should only be used on the specific applications for which they are cataloged. Use of the wrong fan clutch may result in poor cooling, excess noise, reduced mileage, and/or fan clutch failure.

4.52 out of 5 stars ( 455 )

$81.99

Four Seasons Heater Cores

Four Seasons heater cores feature heavy-duty construction for durability and quality engineering to help provide the original factory fit, form, and function. All units include OE-style hardware for installation ease and receive independent testing for proven quality and performance. Keep your older vehicle operating like new with the replacement Four Seasons heater core designed to fit your vehicle.

4.13 out of 5 stars ( 16 )

$58.99

$80.99

Four Seasons Evaporator Cores

Diagnosing a refrigerant leak at the evaporator can be difficult. Four Seasons evaporator cores are high-quality, OEM replacements for when your old one goes out. These aluminum evaporator cores are leak-tested for maximum durability and are available in sizes and styles to fit your application. It doesn't matter what season of the year it is--Four Seasons evaporator cores are ready for climate control.

3.88 out of 5 stars ( 33 )

$60.99

$68.99

Four Seasons Fan Clutches

Is your engine running too warm or is your A/C performance failing? It may be time for a new fan clutch. Improve your cooling system's efficiency by engaging the fan when additional cooling is required. Four Seasons fan clutches are offered in clockwise and counterclockwise rotational patterns, depending on the application.

4.18 out of 5 stars ( 67 )

$70.99

$95.99

Four Seasons Blower Motors

Four Seasons replacement blower motors are available for a variety of applications. These motors allow you to supply the correct volume of air to the heating and/or cooling system of your vehicle. These motors help to keep you warm or cool during all four seasons!

4.38 out of 5 stars ( 87 )

$82.99

Mishimoto Low-Temperature Thermostats and Housings

Mishimoto offers low-temperature thermostats and housings for a variety of applications, including Ford F-250 and F-350 models from 2003-07. These cooling system components are designed to replace the factory parts with a lower activation temperature for earlier coolant circulation. They help keep engine temperatures lower, which is beneficial for vehicles in hot climates, those with modified engines, or for heavy-duty use like towing. Key features: * Lower activation temperature: These thermostats open at a lower temperature than the stock unit, allowing coolant to flow through the engine sooner and reducing overall engine temperature. * Improved cooling: The earlier coolant flow helps prevent overheating, especially under high load or in warm weather, and is ideal for performance applications like towing or racing. * Cast aluminum housing replaces the original plastic housing, eliminating a potential source of leaks and failures. * These parts are designed to be a direct replacement for the factory parts, making installation straightforward.

5.0 out of 5 stars ( 2 )

$91.95

GMB Replacement Fan Clutches

Have you noticed an uptick in your engine temperature? The fan clutch on your vehicle regulates the airflow by controlling the fan speed—maintaining the engine's cooling system. Controlling fan speed will minimize power loss, realize optimal temperature level, and enhance quietness. GMB designs and manufactures these fan clutches to strict OEM tolerances, ensuring years of reliable service. Order the replacement recommended for your vehicle and engine application.

4.83 out of 5 stars ( 6 )

$90.99

Clearance

Reach Cooling Radiators

REACH Cooling offers more than 1,000 radiator models, covering roughly 95 percent of popular automotive and light truck applications. All of their replacement parts are designed to meet or exceed original equipment specifications, ensuring that they will fit and perform just like stock. REACH aluminum radiators are available in crossflow or downflow styles; with numerous inlet/outlet size and location options. Many models also include a transmission cooler. Order the radiator recommended for your vehicle.

3.97 out of 5 stars ( 34 )

$99.99