Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2003 Infiniti M45 Cooling Systems, Fans, Radiators & Components

2003 Infiniti M45 Cooling Systems, Fans, Radiators & Components

My Vehicle Change Vehicle
2003 Infiniti M45
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Engine & Drivetrain

85 products about 2003 Infiniti M45 Cooling Systems, Fans, Radiators & Components found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2003 Infiniti M45 Engine Coolant Temperature Sensor Diagram - 22630-ED000
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Engine Coolant Temperature Sensor

    PartNumber: 22630-ED000
    OEM 2003 Infiniti M45 Engine Coolant Temperature Sensor - 22630-ED000
    Product Specifications
    • Notes: M45
    • Item Dimensions: 2.6 x 1.0 x 1.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 22630-44B10, 22630-44B20, 22630-71L00
    • Part Description: Engine Coolant Temperature Sensor
    More Info
    $34.35 MSRP: $47.13
    You Save: $12.78 (28%)
  • OEM 2003 Infiniti M45 Cap-Reservoir Tank Diagram - 21712-79900
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Cap-Reservoir Tank

    PartNumber: 21712-79900
    OEM 2003 Infiniti M45 Cap-Reservoir Tank - 21712-79900
    Product Specifications
    • Other Names: Cap, Reservoir Cap, Strainer
    • Item Dimensions: 1.5 x 1.5 x 0.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 21712-3NA0A
    • Part Description: Cap-Reservoir Tank
    More Info
    $12.53 MSRP: $17.03
    You Save: $4.50 (27%)
  • Dorman Engine Coolant Thermostat Housing for 2003 Infiniti M45 - 902-5900

    Dorman® Engine Coolant Thermostat Housing for 2003 Infiniti M45

    PartNumber: 902-5900
    Product Specifications
    • Notes: Cover
    • Air Vent (Bleeder Valve): No
    • Bolt Hole Diameter: 0.313"
    • Bolt Hole Quantity: 3
    • Bolts Included: No
    • Color/Finish: Black
    • Gasket or Seal Included: No
    • Housing Neck Angle (°): 30 Degree
    • Material: Plastic
    • O Rings Included: Not Required
    • OE Part Number: 13049AR000
    • Outlet Diameter: 1.5"
    • Thermostat Included: No
    • UPC: 885484613676
    • Part Description: Engine Coolant Thermostat Housing
    More Info
    $10.32
  • Gates Cooling System Tester Adapter for 2003 Infiniti M45 - 31428

    Gates® Cooling System Tester Adapter for 2003 Infiniti M45

    PartNumber: 31428
    Product Specifications
    • Quantity: 1 Piece
    • UPC: 072053433647
    • Part Description: Cooling System Tester Adapter
    More Info
    $24.45
  • OEM 2003 Infiniti M45 Pump Assy-Water Diagram - 21010-AR025
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Pump Assy-Water

    PartNumber: 21010-AR025
    OEM 2003 Infiniti M45 Pump Assy-Water - 21010-AR025
    Product Specifications
    • Notes: M45
    • Other Names: Water Pump
    • Item Dimensions: 9.2 x 5.9 x 5.5 inches
    • Item Weight: 3.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 21010-AR000
    • Part Description: Pump Assy-Water
    More Info
    $301.02 MSRP: $412.93
    You Save: $111.91 (28%)
  • Denso Engine Coolant Radiator for 2003 Infiniti M45 - 221-3429

    Denso® Engine Coolant Radiator for 2003 Infiniti M45

    PartNumber: 221-3429
    Product Specifications
    • Core Height: 17.6870"
    • Core Thickness: 0.6250"
    • Core Width: 27.0620"
    • Inlet Diameter: 1.3750"
    • Outlet Diameter: 1.3750"
    • UPC: 042511178984
    • Part Description: Engine Coolant Radiator
    More Info
    $126.63
  • Delphi Coolant Temperature Sensor for 2003 Infiniti M45 - TS10064

    Delphi® Coolant Temperature Sensor for 2003 Infiniti M45

    PartNumber: TS10064
    Product Specifications
    • Connector Gender: Female
    • Connector Quantity: 1
    • Connector Shape: Square
    • Mounting Type: Threaded Nut
    • Terminal Gender: Male
    • Terminal Quantity: 2
    • Terminal Type: Blade
    • UPC: 689604110539
    • Wiring Harness Included: No
    • Part Description: Coolant Temperature Sensor
    More Info
    $24.50
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti M45 - 33877

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti M45

    PartNumber: 33877
    Product Specifications
    • Notes: 170 Degree; Alternate Temperature
    • By-Pass Flange Diameter: 1.2"
    • Depth from Flange: 1.71"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.51"
    • Height from Flange: 0.74"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Temperature (C): 77
    • Temperature (F): 170
    • Total Height: 2.45"
    • Type: OE Type Thermostat
    • UPC: 072053062830
    • Part Description: OE Type Engine Coolant Thermostat
    More Info
    $19.37
  • Dorman Radiator Mount Bushings for 2003 Infiniti M45 - 926-281

    Dorman® Radiator Mount Bushings for 2003 Infiniti M45

    PartNumber: 926-281
    Product Specifications
    • Notes: Pkg Quantity: 2
    • Material: Rubber
    • OE Part Number: 2150610V00
    • Package Contents: 2 Radiator Mount Bushings
    • UPC: 037495931151
    • Part Description: Radiator Mount Bushings
    More Info
    $4.75
  • Four Seasons Coolant Temperature Sensor for 2003 Infiniti M45 - 36448

    Four Seasons® Coolant Temperature Sensor for 2003 Infiniti M45

    PartNumber: 36448
    Product Specifications
    • Connector Gender: Male
    • Connector Shape: Rectangle
    • Fitting Gender: Male
    • Fitting Thread Size: M12 x 1.50
    • Material: Brass
    • Meets / Exceeds OEM: YES
    • Number of Terminals: 2
    • Style: Coolant Temp Sensor
    • UPC: 096361364486
    • Part Description: Coolant Temperature Sensor
    More Info
    $17.11
  • OEM 2003 Infiniti M45 Radiator Cap Assembly Diagram - 21430-7999C
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Radiator Cap Assembly

    PartNumber: 21430-7999C
    OEM 2003 Infiniti M45 Radiator Cap Assembly - 21430-7999C
    Product Specifications
    • Notes: M45
    • Other Names: Cap, Filler Cap, Radiator Cap
    • Item Dimensions: 2.6 x 2.6 x 1.0 inches
    • Item Weight: 1.20 Pounds
    • Replaces: 21430-89973, 21430-01F01, 21430-79901, 21430-01F90, 21430-4B701, 21430-4B000, 21430-01F00, 21430-01F02, 21430-4B700, 21430-7999A, 21430-7995A
    • Part Description: Radiator Cap Assembly
    More Info
    $17.88 MSRP: $24.32
    You Save: $6.44 (27%)
  • STANT 32 mm x 16 mm Cooling System Adapter for 2003 Infiniti M45 - 12027

    STANT® 32 mm x 16 mm Cooling System Adapter for 2003 Infiniti M45

    PartNumber: 12027
    Product Specifications
    • Quantity: 1 Piece
    • Size: 32 mm x 16 mm
    • UPC: 033342020276
    • Part Description: 32 mm x 16 mm Cooling System Adapter
    More Info
    $44.43
  • Dayco Engine Coolant Curved Radiator Hose for 2003 Infiniti M45 - 70846

    Dayco® Engine Coolant Curved Radiator Hose for 2003 Infiniti M45

    PartNumber: 70846
    Product Specifications
    • Notes: Cut to Fit
    • Color: Black
    • Contains Heat Shield: N
    • Contains Protective Sleeve: N
    • End 1 Inside Diameter: 1 1/4
    • End 2 Inside Diameter: 1 1/4
    • Hose Type: Single I.D. Hose
    • Material: EPDM
    • SAE Specification: SAE J20R4 Class D-1, SAE J1684 Type EC
    • Trunk Height: 11
    • UPC: 038244136025
    • Part Description: Engine Coolant Curved Radiator Hose
    More Info
    $10.86
  • Walker Products Engine Coolant Temperature Sensor for 2003 Infiniti M45 - 211-1031

    Walker Products® Engine Coolant Temperature Sensor for 2003 Infiniti M45

    PartNumber: 211-1031
    Product Specifications
    • UPC: 724620053306
    • Part Description: Engine Coolant Temperature Sensor
    $16.32
  • Four Seasons Engine Coolant Water Inlet W O Thermostat for 2003 Infiniti M45 - 85421

    Four Seasons® Engine Coolant Water Inlet W O Thermostat for 2003 Infiniti M45

    PartNumber: 85421
    Product Specifications
    • Notes: Inlet
    • Bolt Hole Center To Bolt Hole Center: 2.093
    • Gasket or Seal Included: Not Included
    • Inlet Dia. IN: 1.375
    • Material: Plastic; Thermoplastic
    • Maximum Height: 2.283
    • Meets / Exceeds OEM: Yes
    • Mnt Flange Width IN: 0.425
    • Style: w/o Thermostat
    • Symetrical Base: No
    • Thermostat Included: Not Included
    • UPC: 096361854215
    • Part Description: Engine Coolant Water Inlet W O Thermostat
    More Info
    $16.86
  • facet Engine Coolant Temperature Sensor for 2003 Infiniti M45 - 7.3225

    facet® Engine Coolant Temperature Sensor for 2003 Infiniti M45

    PartNumber: 7.3225
    Product Specifications
    • Part Description: Engine Coolant Temperature Sensor
    $11.55
  • OEM 2003 Infiniti M45 Thermostat Assembly Diagram - 21200-1LA1A
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Thermostat Assembly

    PartNumber: 21200-1LA1A
    OEM 2003 Infiniti M45 Thermostat Assembly - 21200-1LA1A
    Product Specifications
    • Notes: M45
    • Other Names: Thermostat
    • Item Dimensions: 3.4 x 3.4 x 3.3 inches
    • Item Weight: 0.80 Pounds
    • Replaces: 21200-AD200, 21200-1LA0A, 21200-AD201
    • Part Description: Thermostat Assembly
    More Info
    $23.87 MSRP: $32.48
    You Save: $8.61 (27%)
  • OEM 2003 Infiniti M45 Thermostat Assembly Diagram - 21200-1LA1A
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Thermostat Assembly

    PartNumber: 21200-1LA1A
    OEM 2003 Infiniti M45 Thermostat Assembly - 21200-1LA1A
    Product Specifications
    • Notes: M45
    • Other Names: Thermostat
    • Item Dimensions: 3.4 x 3.4 x 3.3 inches
    • Item Weight: 0.80 Pounds
    • Replaces: 21200-AD200, 21200-1LA0A, 21200-AD201
    • Part Description: Thermostat Assembly
    More Info
    $23.87 MSRP: $32.48
    You Save: $8.61 (27%)
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti M45 - 33878

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti M45

    PartNumber: 33878
    Product Specifications
    • Notes: 180 Degree; OE Temperature
    • By-Pass Flange Diameter: 1.2"
    • Depth from Flange: 1.72"
    • Design: Bottom By-Pass
    • Flange Diameter: 2.51"
    • Height from Flange: 0.72"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Comparison Rating: OE Performance
    • Temperature (C): 82
    • Temperature (F): 180
    • Total Height: 2.45"
    • Type: OE Type Thermostat
    • UPC: 072053062823
    • Part Description: OE Type Engine Coolant Thermostat
    More Info
    $17.09
  • Hella Engine Coolant Temperature Sensor for 2003 Infiniti M45 - 009107531

    Hella® Engine Coolant Temperature Sensor for 2003 Infiniti M45

    PartNumber: 009107531
    Product Specifications
    • Notes: Technology w/Vision
    • Part Description: Engine Coolant Temperature Sensor
    $8.59
  • Dayco Molded Heater Hose for 2003 Infiniti M45 - 80413

    Dayco® Molded Heater Hose for 2003 Infiniti M45

    PartNumber: 80413
    Product Specifications
    • UPC: 038244148134
    • Part Description: Molded Heater Hose
    $9.67
  • Gates Engine Coolant Molded Radiator Hose for 2003 Infiniti M45 - 22973

    Gates® Engine Coolant Molded Radiator Hose for 2003 Infiniti M45

    PartNumber: 22973
    Product Specifications
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.31 in
    • End 2 Inside Diameter: 1.31 in
    • Material: EPDM
    • Modular Hose: No
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • OE Part Number: 33107
    • UPC: 072053583403
    • Part Description: Engine Coolant Molded Radiator Hose
    More Info
    $20.14
  • OEM 2003 Infiniti M45 Motor Assy-Hydraulic Fan Diagram - 21140-AR000
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Motor Assy-Hydraulic Fan

    PartNumber: 21140-AR000
    OEM 2003 Infiniti M45 Motor Assy-Hydraulic Fan - 21140-AR000
    Product Specifications
    • Notes: M45
    • Other Names: Motor Assembly
    • Item Dimensions: 5.1 x 4.6 x 4.7 inches
    • Item Weight: 2.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Motor Assy-Hydraulic Fan
    More Info
    $428.45 MSRP: $587.73
    You Save: $159.28 (28%)
  • Gates Engine Coolant Molded Radiator Hose for 2003 Infiniti M45 - 22970

    Gates® Engine Coolant Molded Radiator Hose for 2003 Infiniti M45

    PartNumber: 22970
    Product Specifications
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.31 in
    • End 2 Inside Diameter: 1.31 in
    • Material: EPDM
    • Modular Hose: No
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • UPC: 072053583342
    • Part Description: Engine Coolant Molded Radiator Hose
    More Info
    $19.04
  • OEM 2003 Infiniti M45 Radiator Assembly Diagram - 21460-AR500
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Radiator Assembly

    PartNumber: 21460-AR500
    OEM 2003 Infiniti M45 Radiator Assembly - 21460-AR500
    Product Specifications
    • Notes: M45
    • Other Names: Radiator
    • Item Dimensions: 31.7 x 27.8 x 5.1 inches
    • Item Weight: 9.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Radiator Assembly
    More Info
    $726.95 MSRP: $997.20
    You Save: $270.25 (28%)
  • Gates Cooling System Tester Adapter for 2003 Infiniti M45 - 31378

    Gates® Cooling System Tester Adapter for 2003 Infiniti M45

    PartNumber: 31378
    Product Specifications
    • Quantity: 1 Piece
    • UPC: 072053020229
    • Part Description: Cooling System Tester Adapter
    More Info
    $16.45
  • OEM 2003 Infiniti M45 Fan-Motor Diagram - 21486-AR000
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Fan-Motor

    PartNumber: 21486-AR000
    OEM 2003 Infiniti M45 Fan-Motor - 21486-AR000
    Product Specifications
    • Notes: M45
    • Other Names: Fan Blade
    • Item Dimensions: 19.6 x 18.7 x 2.1 inches
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Fan-Motor
    More Info
    $126.90 MSRP: $174.08
    You Save: $47.18 (28%)
  • OEM 2003 Infiniti M45 Fan-Motor Diagram - 21486-AR000
    View Related Parts

    OEM (Genuine) 2003 Infiniti M45 Fan-Motor

    PartNumber: 21486-AR000
    OEM 2003 Infiniti M45 Fan-Motor - 21486-AR000
    Product Specifications
    • Notes: M45
    • Other Names: Fan Blade
    • Item Dimensions: 19.6 x 18.7 x 2.1 inches
    • Item Weight: 2.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Fan-Motor
    More Info
    $126.90 MSRP: $174.08
    You Save: $47.18 (28%)
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti M45 - 34160

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti M45

    PartNumber: 34160
    Product Specifications
    • Notes: 205 Degree; OE Temperature; Seal Included
    • Depth from Flange: 0.84"
    • Design: Reverse Poppet - Water Control Valve
    • Flange Diameter: 2.215"
    • Height from Flange: 0.74"
    • Includes Installation Tool: No
    • Jiggle Pin/Check Valve: No
    • Material: Steel, Copper
    • Number of Gaskets: 0
    • Number of Seals: 1
    • OE Comparison Rating: OE Performance
    • Temperature (C): 96
    • Temperature (F): 205
    • Total Height: 1.55"
    • Type: OE Type Thermostat
    • UPC: 770075465683
    • Part Description: OE Type Engine Coolant Thermostat
    More Info
    $10.12
  • Gates Engine Coolant Replacement Radiator Cap for 2003 Infiniti M45 - 31333

    Gates® Engine Coolant Replacement Radiator Cap for 2003 Infiniti M45

    PartNumber: 31333
    Product Specifications
    • Notes: 13 psi Pressure Rating
    • Cap Depth: 1.06 in
    • Coolant Recovery System: Closed System
    • Filler Neck Depth: 16 mm
    • Filler Neck Inside Diameter: 32 mm
    • Filler Neck Outside Diameter: 43 mm
    • OE Comparison Rating: OE Performance
    • Pressure Rating: 13 psi
    • SAE Pressure Range: 12-16 psi
    • Shell Diameter: 2.59 in
    • UPC: 072053020083
    • Part Description: Engine Coolant Replacement Radiator Cap
    More Info
    $7.28
1-30 of 85 Results
< Previous
123
Next >