2003 BMW 325i Engine Cooling Parts

Essential 2003 BMW 325i Engine Cooling Parts

Behr – Expansion Tank Cap (Part No.G1040458946BEH)

Expansion Tank Cap

from

$23.33
The Behr Expansion Tank Cap is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Vaico – Screw (Part No.Y2003305149VCO)

Screw

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$17.73
Screw

Dorman – Engine Water Pump Pulley (Part No.300-394)

Engine Water Pump Pulley

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$56.99
Damaged your engine water pump pulley? This pulley is a direct replacement for the original manufacturer’s part on specific vehicle years, makes and models, restoring proper performance.

Product Features:
  • Direct replacement – this engine water pump pulley matches the fit and function of the original part on specific vehicles
  • Durable design – built to withstand the elements and road debris
  • Thoroughly tested – must pass strict standards to ensure reliable longevity
  • Trustworthy quality – backed by team of engineers and inspectors in United States
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APA/URO Parts – Radiator Drain Plug (Part No.G1060277966APA)

Radiator Drain Plug

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$5.69
Radiator Drain Plug

APA/URO Parts – Radiator Mount (Part No.G102075950APA)

Radiator Mount

from

$2.76
Radiator Mount

Carquest Premium – Engine Coolant Temperature Switch (Part No.WTA1376)

Engine Coolant Temperature Switch

from

$16.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Aftermarket – Radiator Mount Brack (Part No.G1021305091AFT)

Radiator Mount Brack

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$9.18
Radiator Mount Brack

Motorad – Automatic Transmission Oil Cooler Thermostat-167 Degrees w/ Seals (Part No.1028-176)

Automatic Transmission Oil Cooler Thermostat-167 Degrees w/ Seals

from

$112.99
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.

Product Features:
  • Allows the engine/transmission to achieve the ideal operating temperature quicker before passing the oil through the cooler.
  • 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
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Corteco – Water Pipe O-Ring (Part No.G2026279597CFW)

Water Pipe O-Ring

from

$1.32
Water Pipe O-Ring

Rein – Cooling Hose (Part No.G2021457643RIN)

Cooling Hose

from

$36.60
Designed to be direct replacements for OE hoses and assemblies, Rein hoses are identical, from the size and shape of their branches to the thermoplastic quick connect fittings when called for by the original manufacturer. Rein hose systems, feature integrated thermoplastic couplings, O-ring seals, and multiple connections that branch out to various engine components. Rein Automotive hoses are designed to fit just like the OE hose. No more cutting hoses to fit or repurposing old quick connect fittings.

Product Features:
  • Direct OE replacement for European cars
  • Integrated thermoplastic couplings and O-ring seals
  • Designed to go directly from the shelf to the vehicle. No cutting is ever needed
  • All cooling-water hose inner linings are resistant to electrochemical cracking
  • high strength and resistance to oil, mud, salt, road debris, and ozone
  • Resistance to distilled water and water ethylene glycol mixtures
  • Resistance to air temperatures of up to 135C
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Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35761)

Engine Coolant Thermostat Housing Gasket

from

$11.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Carquest Premium – Universal Fan Clutch – 5" Thermal Import/Compact (Part No.215014)

Universal Fan Clutch - 5" Thermal Import/Compact

from

$121.99
Product Features:
  • Designed, tested, and built by application
  • OE performance, fit, and appearance
  • Precision machined
  • Out of box installation
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Graf – Graf Water Pump (Part No.G3000457932GRA)

Graf Water Pump

from

$57.83
The Graf Water Pump contains no remanufactured parts and is produced using an optimized all metal impeller design to assist in cooling under high RPM, and performance demands. Selection of raw materials, reliability of machinery and production processes, stringent controls throughout the production process, from melting to fitting, as well as reliability tests performed using equipment able to determine true performance, go to ensure this product is a real guarantee of safety and long life. The Graf water pump is centrifugal in type and comprises a bladed rotor linked by means of a shaft (which rotates on bearings housed in a support) to the drive gear; the seal between the pump and the motor block is guaranteed by a gasket, while the inside of the pump is guaranteed by a mechanical seal. Component parts: Impeller: supplies the fluid with the necessary energy to cover the entire cooling circuit. Mechanical seal: ensures fluid seal inside the pump. Bearing: transmits movement to the impeller and supports any ventilation parts. Entrainment part: for transmitting movement to the bearing. Pump body: supports the basic pump component parts and conveys the coolant in the motor block.

Product Features:
  • All the component parts fitted are pre-tested to evaluate durability, performance and reliability.
  • The bearings undergo a durability test equivalent to nominal lifespan and are then inspected to assess integrity.
  • The mechanical seals are tested in extreme coolant temperature conditions according to predefined cycles.
  • The shape of the impellers is optimized thanks to the use of prototypes on which flow and performance tests are performed.
  • On both the entrainment parts and the bodies, the choice of materials and/or technologies different to original ones is made on the basis of structural and mechanical tests.
  • After assembly all the pumps undergo seal tests on units that reject those with leaks above set limits.
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Bosch – Water Temperature Sensors (Part No.C602012897BOS)

Water Temperature Sensors

from

$20.76
Bosch liquid temperature sensors accurately monitor the vital fluids in your vehicle ensuring long and healthy life. The sensor provides information to the Engine control Unit to keep your engine running strong, safe, and efficient.

Product Features:
  • High durability against operating materials: fuel, oil, water
  • Sturdy, vibration-proof design with lasting performance
  • Extreme Accuracy under extreme conditions: -40F – +260F
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Dorman – Pressurized Coolant Reservoir: Black And Yellow, Plastic, Original Equipment Replacement (Part No.603-281)

Pressurized Coolant Reservoir: Black And Yellow, Plastic, Original Equipment Replacement

from

$103.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Product Features:
  • Direct replacement – this engine coolant reservoir matches the fit and function of the original part
  • Ideal solution – engineered for a seamless installation
  • Durable construction – manufactured from quality materials to withstand underhood heat and vibration
  • Trustworthy design – backed by 100 years of automotive aftermarket experience
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Carquest Premium – Engine Cooling Fan Module (Part No.ACC1313)

Engine Cooling Fan Module

from

$94.99
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.
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Dorman – Coolant Housing/Water Outlet: With Housing (Part No.902-5121)

Coolant Housing/Water Outlet: With Housing

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$15.79
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
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Permatex – The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge (Part No.34311)

The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge

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$28.49
Specifically designed to perform under higher torque loads associated with engines having closely spaced bolt patterns (typically import vehicles). This product is blowout resistant, allowing leakproof gaskets to be made and put into service in just one minute. Sensor-safe, The Right Stuff GREY seals instantly, forming a reliable, long lasting elastomeric rubber gasket that outperforms pre-molded gaskets. Specified by major import OEMs, this material is resistant to powertrain fluids (oil, coolant and ATF) and operates in environments to 450°F (232°C) continuous; 500°F (260°C) intermittent.

Product Features:
  • Ideal for rigid cast aluminum parts
  • Meets OEM Specifications
  • Sensor safe & non-corrosive
  • Performs under higher torque loads associated with engines having closely spaced bolt patterns (typical of import vehicles)
  • Blowout resistant, allowing leakproof gaskets to be made in just one minute
  • Seals instantly, forming a reliable, long lasting elastomeric rubber gasket
  • Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
  • Temperature range -60°C to 260°C (-75°F to 500°F) intermittent
  • Applications: Automotive, industrial and marine gaskets, valve covers, gearbox covers, pumps, compressors, oil pans, thermostat housings, water pumps, etc.
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Felpro – Engine Coolant Thermostat Housing Gasket (Part No.35782)

Engine Coolant Thermostat Housing Gasket

from

$4.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Carquest Premium – Thermostat (Part No.48038)

Thermostat

from

$11.99
Original equipment design provides exact fit and performance.

Product Features:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
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Imperial – Electric Fan – 14" Diameter (Part No.226114)

Electric Fan - 14" Diameter

from

$99.99
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.
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Behr – Radiator (Part No.G10001461647BEH)

Radiator

from

$313.03
Aluminum Core Radiator The Behr replacement radiator guarantees the same quality fit and performance as the OE radiator it replaces. The Behr radiator core is manufactured using high quality anti corrosive aluminum and fiber glass-reinforced polyamide coolant tanks that are highly resistant to cracking and deformation.

Product Features:
  • OE-Equivalent
  • Direct fit for easy installation.
  • High quality corrosion resistant materials.
  • OE Style mounting brackets and hose connections.
  • Mechanically bonded aluminum core.
  • Integrated transmission oil cooler when applicable.
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Permatex – Sensor-Safe, High-Torque RTV Silicone Gasket Maker (Part No.82194)

Sensor-Safe, High-Torque RTV Silicone Gasket Maker

from

$11.49
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Original Equipment – Engine Cooling Auxiliary Thermo-Fan Switch (Part No.G5030151345OEA)

Engine Cooling Auxiliary Thermo-Fan Switch

from

$34.68
The Original Equipment Engine Cooling Thermo-Fan Switch is an ideal high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Carquest Premium – Engine Coolant Level Sensor (Part No.FFA1122)

Engine Coolant Level Sensor

from

$141.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Permatex – The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ (Part No.34310)

The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ

from

$38.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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Flex A Lite – Black Magic Electric Fan (Part No.160)

Black Magic Electric Fan

from

$347.99
Black Magic Electric Fan

ACM – Auxiliary Fan Assemb (Part No.G5000277793ACM)

Auxiliary Fan Assemb

from

$251.60
Auxiliary Fan Assemb

2003 BMW 325i Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 BMW 325i. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 70 different Engine Cooling Parts in our inventory ranging from $1.24 to $364.99. That means you can find the exact parts or products you need to keep that 2003 BMW 325i running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 26 different brands to make sure you have plenty of trusted parts to choose from for your 2003 BMW 325i. Permatex, Carquest Premium, and Imperial are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Cooling Parts for your 2003 BMW 325i, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 2,528 reviews in this category, some of the top rated parts include Adjustable Thermostatic Fan Control with 3.4 stars and Radiator with 3.7 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 BMW 325i rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Cooling Parts Brands To Make Your 2003 BMW 325i Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 BMW 325i demands trusted brand parts and products to keep it running. Many trusted brands of Engine Cooling Parts make up Advance Auto Parts’ inventory, and all are ready to help make your 325i the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular Permatex Engine Cooling Parts

We carry Permatex parts in our stock across Engine Water Pump Inlet Pipe Gaskets categories, plus more. For a 2003 BMW 325i, our most popular Permatex Engine Cooling Parts include:
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
from $19.99
(2)
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
Engine Water Pump Inlet Pipe Gaskets
Sensor-Safe, High Torque RTV Silicone Gasket Maker
from $6.99
(9)
Sensor-Safe, High Torque RTV Silicone Gasket Maker
Engine Water Pump Inlet Pipe Gaskets
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Water Pump Housing Gaskets

Top 2003 BMW 325i Engine Cooling Parts from Permatex

Permatex products are another trusted brand when it comes to Engine Cooling Parts for your 2003 BMW 325i. Popular Permatex parts include:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Engine Water Pump Inlet Pipe Gaskets

FAQs for 2003 BMW 325i Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 BMW 325i?

Out of 70 Engine Cooling Parts for the 2003 BMW 325i, the most popular in our inventory are:
Engine Water Pump: New, Gasket/Seals Included
from $78.99
(32)
Engine Water Pump: New, Gasket/Seals Included
Water Pumps
Integrated Thermostat Housing: With Sensor, With Seal, 207 Degrees
from $73.99
(47)
Integrated Thermostat Housing: With Sensor, With Seal, 207 Degrees
Thermostat and Water Outlet Assemblies
Adjustable Thermostatic Fan Control
from $22.99
(35)
Adjustable Thermostatic Fan Control
Engine Cooling Fan Controllers

What are the top-rated 2003 BMW 325i Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 BMW 325i based on customer reviews/ratings are:
Adjustable Thermostatic Fan Control
from $55.99
(33)
Adjustable Thermostatic Fan Control
“If you read the instructions it’s pretty self explanatory.”
Radiator
from $124.99
(20)
Radiator
“good product great pricing”
Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement
from $81.99
(19)
Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement
“Direct replacement part. Came with new hardware, & sensor. My only gripe, is that it’s all plastic.”