140 products about 2003 Kia Optima Cooling Systems, Fans, Radiators & Components foundVEHICLE SPECIFIC Product Specifications Notes: 2.4 Liter, Timing Cover & Components; 2.7 Liter, Timing Cover & Components; Optima Other Names: Oil Filter Item Dimensions: 6.1 x 6.2 x 6.1 inches Item Weight: 1.30 Pounds Fitment Type: Direct Replacement Replaces: 26300-35054, 26300-35A00, 26300-35500, 26300-35504, 26300-21A00, 26300-35503, 26300-35056, 26300-35502, 26300-3E010, 26300-35004, 26300-21010, 26300-35501, 26300-35014 Part Description: 2003 Kia Optima Engine Oil Filter Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, EX Premium, Hybrid, Hybrid EX, Hybrid LX, Hybrid Premium, Limited, LX, LX 1.6T, Plug-In Hybrid EX, S, SE, Special Edition, SX, SX Limited, SX Turbo, SXL, SXL Turbo | 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L ELECTRIC/GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L ELECTRIC/GAS, 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $5.68 MSRP: $7.57
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 2.7 Liter Other Names: Housing Gasket, Thermostat Housing Gasket Item Dimensions: 6.5 x 4.3 x 0.2 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2003 Kia Optima Gasket-Thermostat Case More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $1.74 MSRP: $2.32
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Optima; 2.7l; 2.7 Liter Other Names: Thermostat Item Dimensions: 2.6 x 2.6 x 2.5 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2003 Kia Optima Thermostat Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $19.95 MSRP: $26.63
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Optima; 2.7l; 2.7 Liter Other Names: Thermostat Item Dimensions: 2.6 x 2.6 x 2.5 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2003 Kia Optima Thermostat Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $19.95 MSRP: $26.63
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Optima; 2.4l;Optima; 2.7l; 2.7 Liter Other Names: Coolant Temperature Sensor, Temperature Sensor Item Dimensions: 4.6 x 2.7 x 13.1 inches Item Weight: 1.20 Pounds Fitment Type: Direct Replacement Replaces: 39230-26700, 39220-38020 Part Description: 2003 Kia Optima Sensor Assembly-COOLANT More Info Vehicle Fitment 2003 Kia Optima | EX, EX Premium, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, SE, SX | 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L ELECTRIC/GAS, 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $21.78 MSRP: $29.10
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Optima; 2.4l;Optima; 2.7l; 2.7 Liter Other Names: Coolant Temperature Sensor, Temperature Sensor Item Dimensions: 4.6 x 2.7 x 13.1 inches Item Weight: 1.20 Pounds Fitment Type: Direct Replacement Replaces: 39230-26700, 39220-38020 Part Description: 2003 Kia Optima Sensor Assembly-COOLANT More Info Vehicle Fitment 2003 Kia Optima | EX, EX Premium, Hybrid EX, Hybrid Premium, LX, LX 1.6T, Plug-In Hybrid EX, SE, SX | 4 Cyl 1.6 L GAS, 4 Cyl 2.0 L ELECTRIC/GAS, 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $21.78 MSRP: $29.10
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: w/AT Core Height: 15.7500" Core Thickness: 0.6250" Core Width: 27.8750" Inlet Diameter: 1.3750" Outlet Diameter: 1.3750" UPC: 042511194922 Part Description: 2003 Kia Optima Engine Coolant Radiator More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Interference Eng Application; Timing Belt Driven Housing: Cast Aluminum Impeller Material: Stamped Steel Rotation of Impeller: Reverse Timing Belt Driven: Yes UPC: 770075143789 Part Description: 2003 Kia Optima Engine Coolant Standard Water Pump More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Color: Black Connector Quantity: 1 Connector Type: Male Fan Blade Material: Plastic Fan Quantity: 1 Mounting Bracket Included: No OE Part Number: 25231-38000, 25350-38000, 253803D180, 25386-38050, 253863D180 Package Contents: Radiator Fan Assembly Shroud Included: Yes Shroud Material: Plastic Terminal Quantity: 4 UPC: 019495037804 Part Description: 2003 Kia Optima Engine Cooling Fan Assembly More Info Vehicle Fitment 2003 Kia Optima | All Trims | All Engines VEHICLE SPECIFIC Product Specifications Connector Gender: Female Connector Quantity: 1 Connector Shape: Rectangle Mounting Type: Threaded Nut Terminal Gender: Male Terminal Quantity: 3 Terminal Type: Blade UPC: 689604279472 Wiring Harness Included: No Part Description: 2003 Kia Optima Coolant Temperature Sensor More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Bottom Header: 28 3/4" x 1 15/16"; Core Size: 28 9/16" x 15 13/16" x 3/4"; Manufactured Material: Plastic/Alum; Rows: 1; Top Header: 28 3/4" x 1 15/16" Bottom Header: 28 3/4" x 1 15/16" Core Size: 28 9/16" x 15 13/16" x 3/4" Manufactured Material: Plastic/Aluminum OE Part Number: 25310-38050 Rows: 1 Top Header: 28 3/4" x 1 15/16" UPC: 762405254944 Part Description: 2003 Kia Optima Engine Coolant Radiator More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Housing: Cast Aluminum Impeller Material: Stamped Steel Rotation of Impeller: Standard Timing Belt Driven: No UPC: 770075143741 Part Description: 2003 Kia Optima Engine Coolant Standard Water Pump More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L VEHICLE SPECIFIC Product Specifications Quantity: 1 Piece UPC: 072053433647 Part Description: 2003 Kia Optima Cooling System Tester Adapter More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Timing Belt Driven, Replace Timing Belt w/Pump UPC: 036687986559 Part Description: 2003 Kia Optima Engine Coolant Water Pump More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Optima; 2.4l; Auto Trans;Optima; 2.7l; 2.7 Liter; 2.4 Liter, Auto Trans Other Names: Radiator Item Weight: 10.30 Pounds Replaces: 25310-38050 Part Description: 2003 Kia Optima Radiator Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $375.02 MSRP: $512.34
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: CFM Type: Radiator Cfm Type: Radiator OE Part Number: 25386 3D180, HY3116105 UPC: 762405221342 Part Description: 2003 Kia Optima Driver Side Engine Cooling Fan Motor More Info Vehicle Fitment 2003 Kia Optima | All Trims | All Engines VEHICLE SPECIFIC Product Specifications Notes: Cover Air Vent (Bleeder Valve): No Bolt Hole Diameter: 0.375" Bolt Hole Quantity: 2 Bolts Included: No Color/Finish: Natural Gasket or Seal Included: No Housing Neck Angle (°): Straight Material: Metal O Rings Included: Not Required OE Part Number: 2562138000 Outlet Diameter: 1.47" Thermostat Included: No UPC: 885484263758 Part Description: 2003 Kia Optima Engine Coolant Thermostat Housing More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L VEHICLE SPECIFIC Product Specifications Notes: Universal Fit Primary cooling fan. Reversible for push or pull operation. Incls mounting hardware. Controls not Incld; Std Perf w/16" Fan. Blade Color A : Black Blade Material: Plastic; Reinforced Nylon Blade Quantity: 8 Blade Type: curved 'S' blade Bracket: w/o Bracket CFM Free Air High: 1400 CFM Free Air Low: 1400 CFM Rad Mnt High: 1150 CFM Rad Mnt Low: 1150 Color: Black Depth IN: 3.87" Depth MM: 107.950 Dia. IN: 16.000 Dia. MM: 406.400 Fan 1 Diameter: 16.000 Fan Clutch Mounted: no Fan Quantity: 1 Fan Type: Universal Electric fan Material: Reinforced Nylon Mounting Hardware: Included O.E. Replacement: No Performance Rated: Yes Rotation: Reversible SDS Required: No (135233618) Shroud Color: Black Shroud Included: finger guard on fan Shroud Material: Plastic; reinforced nylon Style: Reversible Fan Universal Or Specific Fit: Universal Electric fan UPC: 096361368989 Voltage: 12 Volume (CFM): 1400 Wiring Harness Length: 36.000 Part Description: 2003 Kia Optima Electric Fan Kit More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Optima Other Names: Fan Assembly Item Dimensions: 22.3 x 18.4 x 6.1 inches Item Weight: 5.50 Pounds Fitment Type: Direct Replacement Part Description: 2003 Kia Optima Blower Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $333.46 MSRP: $455.57
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Optima Other Names: Fan Assembly Item Dimensions: 22.3 x 18.4 x 6.1 inches Item Weight: 5.50 Pounds Fitment Type: Direct Replacement Part Description: 2003 Kia Optima Blower Assembly More Info Vehicle Fitment 2003 Kia Optima | EX, LX, SE | 4 Cyl 2.4 L GAS, 6 Cyl 2.5 L GAS, 6 Cyl 2.7 L GAS $333.46 MSRP: $455.57
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Color: Color May Vary Material: Molded Rubber Rim Shape: Square Thickness (in): 0.2200 in UPC: 023913666569 Part Description: 2003 Kia Optima Engine Coolant Outlet O Ring More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Serpentine Belt Driven UPC: 036687986580 Part Description: 2003 Kia Optima Engine Coolant Water Pump More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L VEHICLE SPECIFIC Product Specifications Notes: CFM Type: Condenser Cfm Type: Condenser OE Part Number: 97786-38000, HY3114105 UPC: 762405221335 Part Description: 2003 Kia Optima Passenger Side Engine Cooling Fan Motor More Info Vehicle Fitment 2003 Kia Optima | All Trims | All Engines VEHICLE SPECIFIC Product Specifications Quantity: 1 Piece Size: 32 mm x 16 mm UPC: 033342020276 Part Description: 2003 Kia Optima 32 mm x 16 mm Cooling System Adapter More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Cover Air Vent (Bleeder Valve): No Bolt Hole Diameter: 0.313" Bolt Hole Quantity: 2 Bolts Included: No Color/Finish: Natural Gasket or Seal Included: No Housing Neck Angle (°): 180 Degree Material: Metal O Rings Included: Not Required OE Part Number: 2563137100 Outlet Diameter: 1.25" Thermostat Included: No UPC: 885484547780 Part Description: 2003 Kia Optima Engine Coolant Thermostat Housing More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Universal Fit Super Duty Electric Puller Primary Fan. Incls mounting hardware. Controls not Incld. Material: Plastic Performance Rated: Yes SDS Required: No (135233618) UPC: 096361089945 Part Description: 2003 Kia Optima Auxiliary Engine Cooling Fan More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L VEHICLE SPECIFIC Product Specifications Core Material: Aluminum Height: 15 3/4" Inlet: 1 3/8" Inlet Header: 28 3/8" x 1 9/16" Outlet: 1 3/8" Outlet Header: 28 3/8" x 1 9/16" Row: 1 Tank Material: Plastic Thickness: 5/8" TOC: Concentric; 7/8" Diameter; 14 3/4" Distance UPC: 671607742398 Width: 28 1/2" Part Description: 2003 Kia Optima Complete Radiator More Info Vehicle Fitment 2003 Kia Optima | All Trims | 4 Cyl 2.4L 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Color: Color May Vary Complete: Y Contains Applications: Y Material: Fiber Mount Hole Quantity: 9 Release Wave: 12/15/2017 Thickness: 0.042 UPC: 023913759391 Part Description: 2003 Kia Optima Engine Coolant Water Pump Gasket More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Notes: Timing Belt Should Be Replaced with Water Pump Fan Clutch Included: No Housing Material: Aluminum Hub Height: 63.80 mm Impeller Material: Steel Impeller Rotation: Reverse Impeller Vane Quantity: 6 Includes Back Housing: No Mounting Hole Quantity: 9 Pulley Outside Diameter: 65.02 mm Water Pump Drive Type: Timing Belt Part Description: 2003 Kia Optima Engine Coolant Water Pump More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L VEHICLE SPECIFIC Product Specifications Branch Quantity: 0 Contains Spring: No End 1 Inside Diameter: 1.38 in End 2 Inside Diameter: 1.38 in Material: EPDM Modular Hose: No Molded: Yes Number of Quick Connect Fittings: 0 OE Part Number: 5240 UPC: 072053544763 Part Description: 2003 Kia Optima Engine Coolant Molded Radiator Hose More Info Vehicle Fitment 2003 Kia Optima | All Trims | 6 Cyl 2.7L