HomeBelts and Cooling > Water Pump and Related ComponentsGates 42307 Engine Water Pump
Part #: 42307

Gates 42307 Engine Water Pump

Water Pump (Standard)
⚙️ 13 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Water Pump (Standard)
🚗Fitment: Lexus, GS300 and IS300
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Water Pump Replacement for Lexus GS300 and IS300

The Gates Water Pump (Standard) part number 42307 is engineered to provide dependable cooling system performance for Lexus GS300 and IS300 models. Designed with durable materials and precise specifications, this engine water pump supports efficient engine temperature regulation.

Key Features of Gates Water Pump 42307

  • Housing constructed from cast aluminum for strength and corrosion resistance
  • Stamped steel impeller designed for standard rotation to match OEM specifications
  • Accessory belt drive style for compatibility with Lexus GS300 and IS300 accessory systems
  • Includes water pump, gasket, o-ring, 4 bolts, and 4 double-end studs for a complete installation package
  • Does not include back housing, thermostat, fan clutch, or pulley, ensuring compatibility with existing vehicle components

Detailed Description of Gates Water Pump (Standard) 42307

This Gates Water Pump (Standard) 42307 is specifically designed for Lexus GS300 and IS300 vehicles, providing a direct replacement for the engine water pump. The cast aluminum housing offers a lightweight yet durable structure that resists corrosion and heat damage. The stamped steel impeller ensures consistent coolant flow with standard rotation, maintaining optimal engine temperature. This water pump operates with an accessory belt drive style, aligning with the original equipment setup of the Lexus GS300 and IS300. The package includes essential components such as the gasket, o-ring, bolts, and double-end studs to facilitate proper sealing and secure mounting.

The Water Pump (Standard) product line by Gates focuses on delivering reliable, OEM-quality water pumps that meet standard rotation and material specifications. This line is designed to replace factory water pumps without requiring additional modifications or upgrades, making it suitable for routine maintenance and repairs.

Common Applications and Issues Addressed

  • Replacement of worn or leaking water pumps in Lexus GS300 and IS300
  • Resolution of engine overheating caused by coolant circulation failure
  • Elimination of coolant leaks due to damaged pump housing or seals
  • Restoration of proper accessory belt-driven water pump function
  • Prevention of engine damage related to cooling system malfunctions

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid injury. Verify compatibility with Lexus GS300 and IS300 models and confirm the accessory belt drive style matches your vehicle setup. Use the included gasket and o-ring to prevent coolant leaks and torque bolts to manufacturer specifications. Inspect the accessory belt and related components for wear during installation and replace if necessary to maintain optimal performance.

Quality Assurance and Warranty

Gates Water Pump (Standard) 42307 is manufactured to meet industry standards for durability and performance. The use of cast aluminum housing and stamped steel impeller materials ensures long service life under normal operating conditions. While specific warranty details are not provided here, Gates products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandGates
Part Number42307
PositionWater Pump (Standard)
Housing MaterialCast aluminum
Impeller MaterialStamped steel
Impeller RotationStandard
Includes Back HousingNo
Thermostat And Housing IncludedNo
ContentsWater pump, gasket, o-ring, 4 bolts, 4 double-end studs
Drive StyleAccessory belt
Fan Clutch IncludedNo
Pulley IncludedNo
Timing Belt DrivenNo

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005LexusGS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2005LexusIS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2004LexusGS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2004LexusIS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2003LexusGS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2003LexusIS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2002LexusGS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2002LexusIS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2001LexusGS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2001LexusIS3003.0LL6GASN/ADoes Not Include Back Housing; Water Pump (Standard)
2000LexusGS3003.0LL6GASN/AWater Pump (Standard)
1999LexusGS3003.0LL6GASN/AWater Pump (Standard)
1998LexusGS3003.0LL6GASN/AWater Pump (Standard)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

131-226216100498751611049156170-238018-159820774224070252-7903-91754230751-214655-9395554314894230798188AW9395CP9395CWP-9175DP921FP2462PWP9175T4178US9395WP-9395WPT116

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.