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Replacement and OEM Parts for 2003 Infiniti Q45 Cooling Systems, Fans, Radiators & Components

2003 Infiniti Q45 Cooling Systems, Fans, Radiators & Components

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2003 Infiniti Q45
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Engine & Drivetrain

86 products about 2003 Infiniti Q45 Cooling Systems, Fans, Radiators & Components found

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  • OEM 2003 Infiniti Q45 Engine Coolant Temperature Sensor Diagram - 22630-ED000
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    OEM (Genuine) 2003 Infiniti Q45 Engine Coolant Temperature Sensor

    PartNumber: 22630-ED000
    OEM 2003 Infiniti Q45 Engine Coolant Temperature Sensor - 22630-ED000
    Product Specifications
    • Notes: Q45
    • 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 Q45 Cap-Reservoir Tank Diagram - 21712-79900
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    OEM (Genuine) 2003 Infiniti Q45 Cap-Reservoir Tank

    PartNumber: 21712-79900
    OEM 2003 Infiniti Q45 Cap-Reservoir Tank - 21712-79900
    Product Specifications
    • Notes: 2002-2004
    • 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
    $12.97 MSRP: $17.63
    You Save: $4.66 (27%)
  • Dorman Engine Coolant Thermostat Housing for 2003 Infiniti Q45 - 902-5900

    Dorman® Engine Coolant Thermostat Housing for 2003 Infiniti Q45

    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
    $9.92
  • Gates Cooling System Tester Adapter for 2003 Infiniti Q45 - 31428

    Gates® Cooling System Tester Adapter for 2003 Infiniti Q45

    PartNumber: 31428
    Product Specifications
    • Quantity: 1 Piece
    • UPC: 072053433647
    • Part Description: Cooling System Tester Adapter
    More Info
    $26.09
  • Denso Engine Coolant Radiator for 2003 Infiniti Q45 - 221-3429

    Denso® Engine Coolant Radiator for 2003 Infiniti Q45

    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
  • OEM 2003 Infiniti Q45 Pump Assy-Water Diagram - 21010-AR025
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    OEM (Genuine) 2003 Infiniti Q45 Pump Assy-Water

    PartNumber: 21010-AR025
    OEM 2003 Infiniti Q45 Pump Assy-Water - 21010-AR025
    Product Specifications
    • Notes: Q45
    • 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
    $311.55 MSRP: $427.38
    You Save: $115.83 (28%)
  • Dorman Radiator Mount Bushings for 2003 Infiniti Q45 - 926-281

    Dorman® Radiator Mount Bushings for 2003 Infiniti Q45

    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
  • Delphi Coolant Temperature Sensor for 2003 Infiniti Q45 - TS10064

    Delphi® Coolant Temperature Sensor for 2003 Infiniti Q45

    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
    $23.25
  • OEM 2003 Infiniti Q45 Radiator Cap Assembly Diagram - 21430-7999C
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    OEM (Genuine) 2003 Infiniti Q45 Radiator Cap Assembly

    PartNumber: 21430-7999C
    OEM 2003 Infiniti Q45 Radiator Cap Assembly - 21430-7999C
    Product Specifications
    • Notes: Q45
    • 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
    $18.15 MSRP: $24.68
    You Save: $6.53 (27%)
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti Q45 - 33877

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti Q45

    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
    $20.87
  • Four Seasons Coolant Temperature Sensor for 2003 Infiniti Q45 - 36448

    Four Seasons® Coolant Temperature Sensor for 2003 Infiniti Q45

    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
  • STANT 32 mm x 16 mm Cooling System Adapter for 2003 Infiniti Q45 - 12027

    STANT® 32 mm x 16 mm Cooling System Adapter for 2003 Infiniti Q45

    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 Q45 - 70846

    Dayco® Engine Coolant Curved Radiator Hose for 2003 Infiniti Q45

    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
    $11.76
  • Walker Products Engine Coolant Temperature Sensor for 2003 Infiniti Q45 - 211-1031

    Walker Products® Engine Coolant Temperature Sensor for 2003 Infiniti Q45

    PartNumber: 211-1031
    Product Specifications
    • UPC: 724620053306
    • Part Description: Engine Coolant Temperature Sensor
    $16.32
  • OEM 2003 Infiniti Q45 Thermostat Assembly Diagram - 21200-1LA1A
    View Related Parts

    OEM (Genuine) 2003 Infiniti Q45 Thermostat Assembly

    PartNumber: 21200-1LA1A
    OEM 2003 Infiniti Q45 Thermostat Assembly - 21200-1LA1A
    Product Specifications
    • Notes: Q45
    • 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
    $24.22 MSRP: $32.97
    You Save: $8.75 (27%)
  • OEM 2003 Infiniti Q45 Thermostat Assembly Diagram - 21200-1LA1A
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    OEM (Genuine) 2003 Infiniti Q45 Thermostat Assembly

    PartNumber: 21200-1LA1A
    OEM 2003 Infiniti Q45 Thermostat Assembly - 21200-1LA1A
    Product Specifications
    • Notes: Q45
    • 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
    $24.22 MSRP: $32.97
    You Save: $8.75 (27%)
  • facet Engine Coolant Temperature Sensor for 2003 Infiniti Q45 - 7.3225

    facet® Engine Coolant Temperature Sensor for 2003 Infiniti Q45

    PartNumber: 7.3225
    Product Specifications
    • Part Description: Engine Coolant Temperature Sensor
    $11.55
  • Four Seasons Engine Coolant Water Inlet W O Thermostat for 2003 Infiniti Q45 - 85421

    Four Seasons® Engine Coolant Water Inlet W O Thermostat for 2003 Infiniti Q45

    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
  • Hella Engine Coolant Temperature Sensor for 2003 Infiniti Q45 - 009107531

    Hella® Engine Coolant Temperature Sensor for 2003 Infiniti Q45

    PartNumber: 009107531
    Product Specifications
    • Notes: Technology w/Vision
    • Part Description: Engine Coolant Temperature Sensor
    $8.80
  • Dayco Molded Heater Hose for 2003 Infiniti Q45 - 80413

    Dayco® Molded Heater Hose for 2003 Infiniti Q45

    PartNumber: 80413
    Product Specifications
    • UPC: 038244148134
    • Part Description: Molded Heater Hose
    $9.98
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti Q45 - 33878

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti Q45

    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
    $18.43
  • Gates Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45 - 22973

    Gates® Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45

    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
    $19.73
  • OEM 2003 Infiniti Q45 Motor Assy-Hydraulic Fan Diagram - 21140-AR000
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    OEM (Genuine) 2003 Infiniti Q45 Motor Assy-Hydraulic Fan

    PartNumber: 21140-AR000
    OEM 2003 Infiniti Q45 Motor Assy-Hydraulic Fan - 21140-AR000
    Product Specifications
    • Notes: 2002-2004; Q45
    • 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
    $432.74 MSRP: $593.62
    You Save: $160.88 (28%)
  • Gates Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45 - 22970

    Gates® Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45

    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
    $18.67
  • Gates Cooling System Tester Adapter for 2003 Infiniti Q45 - 31378

    Gates® Cooling System Tester Adapter for 2003 Infiniti Q45

    PartNumber: 31378
    Product Specifications
    • Quantity: 1 Piece
    • UPC: 072053020229
    • Part Description: Cooling System Tester Adapter
    More Info
    $17.73
  • OEM 2003 Infiniti Q45 Cock-Water DRAI Diagram - 21440-5V000
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    OEM (Genuine) 2003 Infiniti Q45 Cock-Water DRAI

    PartNumber: 21440-5V000
    OEM 2003 Infiniti Q45 Cock-Water DRAI - 21440-5V000
    Product Specifications
    • Notes: 2002-2004
    • Item Dimensions: 0.9 x 0.9 x 0.7 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Cock-Water DRAI
    More Info
    $13.84 MSRP: $18.82
    You Save: $4.98 (27%)
  • Gates Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45 - 23169

    Gates® Engine Coolant Molded Radiator Hose for 2003 Infiniti Q45

    PartNumber: 23169
    Product Specifications
    • Notes: Cut to fit
    • Branch Quantity: 0
    • Contains Spring: No
    • End 1 Inside Diameter: 1.25 in
    • End 2 Inside Diameter: 1.25 in
    • Material: EPDM
    • Modular Hose: No
    • Molded: Yes
    • Number of Quick Connect Fittings: 0
    • OE Part Number: 5898
    • UPC: 770075238744
    • Part Description: Engine Coolant Molded Radiator Hose
    More Info
    $12.44
  • OEM 2003 Infiniti Q45 Hose-Radiator, Lower Diagram - 21503-AR000
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    OEM (Genuine) 2003 Infiniti Q45 Hose-Radiator, Lower

    PartNumber: 21503-AR000
    OEM 2003 Infiniti Q45 Hose-Radiator, Lower - 21503-AR000
    Product Specifications
    • Notes: Q45; 2002-2004
    • Other Names: Lower Hose
    • Item Dimensions: 12.5 x 2.1 x 1.6 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Hose-Radiator, Lower
    More Info
    $38.89 MSRP: $53.37
    You Save: $14.48 (28%)
  • OEM 2003 Infiniti Q45 Hose-Radiator, Lower Diagram - 21503-AR000
    View Related Parts

    OEM (Genuine) 2003 Infiniti Q45 Hose-Radiator, Lower

    PartNumber: 21503-AR000
    OEM 2003 Infiniti Q45 Hose-Radiator, Lower - 21503-AR000
    Product Specifications
    • Notes: Q45; 2002-2004
    • Other Names: Lower Hose
    • Item Dimensions: 12.5 x 2.1 x 1.6 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: Hose-Radiator, Lower
    More Info
    $38.89 MSRP: $53.37
    You Save: $14.48 (28%)
  • Gates OE Type Engine Coolant Thermostat for 2003 Infiniti Q45 - 34160

    Gates® OE Type Engine Coolant Thermostat for 2003 Infiniti Q45

    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
    $10.90
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