HomeBelts and Cooling > Water Pump and Related ComponentsGates 42121 Engine Water Pump
Part #: 42121

Gates 42121 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: Honda, City and Fit
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Water Pump Replacement for Honda City and Fit

The Gates Water Pump (Standard) part number 42121 is engineered to provide dependable cooling system performance for Honda City and Fit models. Designed with durable materials and precise specifications, this engine water pump ensures efficient coolant circulation to maintain optimal engine temperature.

Key Features of Gates Water Pump 42121

  • Housing made from cast aluminum for strength and corrosion resistance
  • Plastic impeller designed for reverse rotation to match OEM specifications
  • Includes a pulley for accessory belt drive compatibility
  • Comes with a rubber gasket for proper sealing
  • Accessory belt driven design, not timing belt driven
  • Does not include back housing, thermostat, or fan clutch

Detailed Description of the Water Pump (Standard) Line

The Gates Water Pump (Standard) product line focuses on providing reliable, OEM-quality water pumps that meet the exact fit and function requirements of specific vehicle models. This line is designed to replace factory water pumps with components that maintain engine cooling efficiency and durability. The 42121 water pump features a cast aluminum housing that offers a lightweight yet robust structure, while the plastic impeller is engineered for reverse rotation, ensuring compatibility with the Honda City and Fit cooling systems. The inclusion of a pulley supports accessory belt drive systems, making it suitable for vehicles that do not use timing belt driven water pumps.

Applications and Common Issues Addressed

  • Replacement for failing or leaking water pumps in Honda City and Fit models
  • Resolves overheating caused by inefficient coolant circulation
  • Addresses noise or vibration issues related to worn impellers or pulleys
  • Prevents coolant leaks due to damaged seals or gaskets
  • Restores proper engine temperature regulation for improved performance

Installation Notes and Tips

When installing the Gates Water Pump 42121, ensure the engine is cool and the cooling system is depressurized. Use the included rubber gasket to achieve a proper seal and prevent leaks. Verify that the accessory belt is correctly tensioned after installation. Since this pump does not include a thermostat or back housing, inspect those components separately and replace if necessary. Follow manufacturer torque specifications for mounting bolts to avoid damage.

Quality Assurance and Warranty

Gates water pumps are manufactured to meet strict quality standards, ensuring reliable operation and durability. The Water Pump (Standard) line undergoes rigorous testing to confirm fitment and performance for Honda City and Fit vehicles. While specific warranty details are not provided here, Gates typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandGates
Part Number42121
PositionWater Pump (Standard)
Housing MaterialCast aluminum
Impeller MaterialPlastic
Impeller RotationReverse
Includes Back HousingNo
Thermostat And Housing IncludedNo
ContentsWater pump, rubber gasket
Drive StyleAccessory belt
Fan Clutch IncludedNo
Pulley IncludedYes
Timing Belt DrivenNo

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2021HondaCity1.5LL4GASN/AWater Pump (Standard)
2020HondaCity1.5LL4GASN/AWater Pump (Standard)
2020HondaFit1.5LL4GASN/AWater Pump (Standard)
2019HondaCity1.5LL4GASN/AWater Pump (Standard)
2019HondaFit1.5LL4GASN/AWater Pump (Standard)
2018HondaCity1.5LL4GASN/AWater Pump (Standard)
2018HondaFit1.5LL4GASN/AWater Pump (Standard)
2017HondaCity1.5LL4GASN/AWater Pump (Standard)
2017HondaFit1.5LL4GASN/AWater Pump (Standard)
2016HondaCity1.5LL4GASN/AWater Pump (Standard)
2016HondaFit1.5LL4GASN/AWater Pump (Standard)
2015HondaCity1.5LL4GASN/AWater Pump (Standard)
2015HondaFit1.5LL4GASN/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:

192005R000342121942121

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