2004 BMW M3 Engine Cooling Parts

Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:

• Thermal tested under real-life temperature simulations
• High tensile strength aluminum for maximum crimp strength
• Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
• Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles

Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:

• Thermal tested under real-life temperature simulations
• High tensile strength aluminum for maximum crimp strength
• Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
• Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles

Product Features:

• Designed, tested, and built by application
• OE performance, fit, and appearance
• Precision machined
• Out of box installation

Product Features:

• Designed, tested, and built by application
• OE performance, fit, and appearance
• Precision machined
• Out of box installation

Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Product Features:

• High grade stainless steel and copper construction
• Meets or exceeds OEM standards
• Consistent and precise response to cooling system needs
• Original equipment design for worry-free direct fit replacement
• 100% tested and calibrated

All-in-one bolt on solution for a complete repair

Product Features:

• Meets and/or exceeds OEM standard
• Includes quality gasket or O-ring  to ensure proper seal (where applicable
• Includes quality gasket or O-ringá to ensure proper seal (where applicable
• Coated with corrosion and rust inhibitor
• 100% leak tested
• All-in-one bolt on solution for a complete repair
• Includes quality thermostat
• Meets and/or exceeds OEM standard
• Includes quality gasket or O-ring to ensure proper seal (where applicable)
• Coated with corrosion and rust inhibitor
• 100% leak tested
• All-in-one bolt on solution for a complete repair

Rein Automotive OE quality thermostat inserts install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These inserts are designed to meet or exceed the OE materials used. Rein thermostats are produced with high-quality metals and components to ensure proper durability and service life. The thermostats are temperature calibrated to have a consistent and precise response suiting cooling system needs. Our quality thermostat inserts aim to provide the profession repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.

Product Features:

• Matches original equipment design specifications
• All gaskets or seals necessary for installation are supplied with thermostats
• Manufactured to strict engineering standards/specifications in materials and tolerances
• Thermostat set to 88 degrees Celsius to maintain optimal running temperature

Rein Automotive OE quality water pumps are designed to be direct replacements for OE water pumps and water pump assembles. Rein water pumps are made to original casting specifications to ensure proper fitments for easy installation, proper water flow and maximum cooling. Pumps include the necessary OE style gaskets and/or o-rings to replace the old worn out parts. Seals are made from a high quality silicate carbide compound. Bearings of OE design and materials are also used to meet or exceed OEM standards and ensure long service life. Our quality water pumps aim to provide the professional repair technician and vehicle owner the peace of mind and trust that is expected from an OE quality component. Please read and follow all enclosed instructions to maximize pump life and validate warranty.

Product Features:

• Pump is produced with silicon carbide seals providing improved durability and service life
• Pump uses OE designed bearings by ensuring to extend pumps service life
• Read and follow all enclosed instructions to maximize pump life and to qualify for extended warranty

Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:

• Matches OE form, fit and function
• Heavy duty bearings, sealed and lubed for life
• Includes all necessary gaskets and seals needed for a complete installation
• Where applicable, metal and resin impellers are offered. See catalog to match pump to this vehicle
• Be sure to use the proper coolant to maximize cooling system components. See Beck/Arnley catalog for the coolant for this application.

Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:

• 100% tested for reliable performance
• Durable housing features precisely machined mounting surface for proper sealing and fitment
• Equipped with weep chamber or similar feature to help prevent unnecessary replacement
• Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
• All gaskets or seals necessary for water pump are included
• This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
• This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
• This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:

• Motors built and tested to quality specifications
• 14 in. universal fit reversible fan
• 1250 CFM
• UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.
• Motors built and tested to quality specifications
• 14 in. universal fit reversible fan
• 1250 CFM
• UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:

• Rapid-Cool Thin-Line electric fans
• 12″ Diameter
• 800 CFM
• Use as a pusher or puller fan
• Motors built and tested to quality specifications
• 12 in. universal fit reversible fan
• 800 CFM
• UNIVERSAL fan, NOT a direct OE replacement. Measure core and verify space.

For European vehicles, A.P.A. manufactures the URO Parts brand of quality replacement parts, which meet or exceed OEM specifications. URO Parts components are ideal for both professional and DIY vehicle repair, and are often the exclusive aftermarket alternative to overpriced ¿Genuine¿ components. By reducing deferred maintenance with URO Parts, you will increase the bottom line of your business. With its URO Premium line, A.P.A. offers problem-solving upgraded components that are superior to failure-prone OEM parts in design and/or materials. A.P.A. is so confident in the longevity and reliability of URO Premium products. URO Parts also specializes in accurate reproduction parts for classic vehicles, including a huge variety of items that are no longer available from the dealer.

Replace your damaged cooling fan blade with this direct replacement. This vehicle-specific application is engineered for a perfect fit and is made from quality materials to ensure durability and restore proper cooling system operation.

Product Features:

• Direct replacement – this engine cooling fan blade fits and functions like the original equipment fan blade
• Quality construction – manufactured from premium materials for a long service life
• Excellent value – original equipment quality at a lower price
• Quality tested – has undergone testing to ensure proper fit and performance

Product Features:

• Designed to meet or exceed OE specifications for fit, form and function
• 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
• OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
• O-rings, seals or thread sealant are included if required
• Weather-tight connectors prevent leaks and corrosion for longer life
• Extensive design validation testing and 100% end-of-line tested
• Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.

Product Features:

• Delphi temperature sensors deliver accurate readings and optimal performance
• Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
• Each sensor is electrically insulated to eliminate interference from other components in the vehicle
• Delphi temperature sensors are impervious to electrical noise and interference

Delphi’s history is one of OE heritage and quality. Our global technical requirements include design specifications and validation testing based on over 100 years of OE experience. Our material selections, material thickness, and material types are built from OE specifications to exceed aftermarket expectations. We put in place strict manufacturing processes to ensure quality control in every part we make. Delphi’s pioneering spirit delivers innovative solutions designed to support the aftermarket in servicing the vehicles of today, and tomorrow.

Product Features:

• Delphi temperature sensors deliver accurate readings and optimal performance
• Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
• Each sensor is electrically insulated to eliminate interference from other components in the vehicle
• Delphi temperature sensors are impervious to electrical noise and interference

Rein Automotive OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life. Rein Automotive OE quality expansion tank caps keep the coolant system at the proper pressure just like the OE cap.

Product Features:

• Manufactured to strict engineering standards/specifications in materials and tolerances.
• Direct fit.
• Meets or exceeds pressure specifications demanded by the OE manufacturer.
• Produced by an original equipment supplier.

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:

• Maintains proper cooling system pressure
• Easy installation and removal
• 100% tested to ensure proper pressure and longevity
• Meets all OEM specifications

URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:

• Guaranteed fitment
• Replacement resolves false “low coolant” indicator light warning
• Replacement resolves failure to warn driver of dangerously low coolant level
• Direct-fit OE replacement design is easily installed in coolant reservoir tank
• Easy plug-and-play wiring connection
• Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand intense cooling system heat
• Alloy conductors minimize electrical resistance for accurate operation
• Designed and tested for reliability and long life

URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:

• Guaranteed fitment
• Replacement resolves false “low coolant” indicator light warning
• Replacement resolves failure to warn driver of dangerously low coolant level
• Direct-fit OE replacement design is easily installed in coolant reservoir tank
• Easy plug-and-play wiring connection
• Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand intense cooling system heat
• Alloy conductors minimize electrical resistance for accurate operation
• Designed and tested for reliability and long life

The engine cooling system is critical to engine sustainability under all operating conditions. The Coolant Level Sensor reports the level of coolant either in the radiator overflow container or in the radiator tank.

Product Features:

• Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
• Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
• Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
• 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
• 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.

URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:

• Guaranteed fitment
• Replacement resolves false “low coolant” indicator light warning
• Replacement resolves failure to warn driver of dangerously low coolant level
• Direct-fit OE replacement design is easily installed in coolant reservoir tank
• Easy plug-and-play wiring connection
• Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand intense cooling system heat
• Alloy conductors minimize electrical resistance for accurate operation
• Designed and tested for reliability and long life

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:

• Adjustable thermostatic fan control
• 160 Deg. F – 210 Deg. F thread-in probe
• For use with Imperial electric fans
• Thread-in probe for installation in water jacket or radiator
• Contains gaskets, O-rings, or seals to properly replace the product
• Brass construction for accurate temperature sensing
• Zinc coated terminal to resist corrosion
• Vehicle specific applications

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Product Features:

• Economy adjustable thermostatic fan control
• Economy Model; 32-248 Deg. F
• For use with Imperial electric fans
• Probe installs into radiator fins
• Contains gaskets, O-rings, or seals to properly replace the product
• Brass construction for accurate temperature sensing
• Zinc coated terminal to resist corrosion
• Vehicle specific applications

All modern vehicles consist of several independent operating systems controlled by a main system processor with independent sub-processors. The sub-processors provide class 2 serial information data to the main processor while handling the operation of the system and carry the circuit load to protect the main operating system. When replacing any level processor programming may be needed to enter the unit into the vehicles main operating system.

Product Features:

• Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

Adjustable Thermostatic Fan Control. 160-210°F; push-in probe. Controls the operating temperature of Imperial electric fans. Operates up to 2 fans.

Product Features:

• Adjustable thermostatic fan control
• 160-210°F push-in probe
• For use with Imperial electric fans
• Probe installs into radiator fins