HomeBelts and Cooling > Water Pump and Related ComponentsGates 43518 Engine Water Pump - Main
Part #: 43518

Gates 43518 Engine Water Pump - Main

Water Pump (Standard), Main
⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Water Pump (Standard), Main
🚗Fitment: BMW and Land Rover, 540i, 740i, 740iL, Range Rover, X5, and Z8
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Reliable Cooling Solution for BMW and Land Rover Engines

The Gates Water Pump (Standard) part number 43518 is engineered to maintain optimal engine temperature in select BMW and Land Rover models. Designed with durable materials and precise specifications, this engine water pump supports efficient coolant circulation for vehicles like the BMW 540i, 740i, 740iL, and Land Rover Range Rover, X5, and Z8.

  • Cast aluminum housing for strength and heat resistance
  • Plastic impeller with reverse rotation for effective coolant flow
  • Includes water pump, gasket, and three o-rings for proper sealing
  • Accessory belt drive style compatible with specified vehicles
  • Two outlet ports for coolant distribution

About the Gates Water Pump (Standard) Product Line

The Gates Water Pump (Standard) line focuses on delivering reliable engine water pumps that meet OEM specifications for cooling system components. This product line emphasizes durable construction and precise fitment, ensuring compatibility with various BMW and Land Rover models. The 43518 water pump is part of this line, providing a balance of quality materials and functional design without additional components like pulleys or fan clutches.

Product Features and Technical Details

This engine water pump features a cast aluminum housing that offers corrosion resistance and structural integrity under high-temperature conditions. The plastic impeller is designed to rotate in reverse, optimizing coolant flow through the engine’s cooling system. The pump includes two outlet ports, allowing efficient coolant distribution. It is driven by the accessory belt, not the timing belt, which simplifies installation and maintenance. The package contains the water pump itself, a gasket, and three o-rings to ensure a secure and leak-free installation.

Compatible Vehicles and Common Applications

  • BMW 540i, 740i, 740iL models requiring a standard water pump replacement
  • Land Rover Range Rover, X5, and Z8 models with accessory belt-driven water pumps
  • Replacement for worn or failing water pumps causing overheating or coolant leaks
  • Addressing coolant circulation issues that affect engine temperature regulation
  • Resolving noise or impeller damage related to water pump wear

Installation Notes and Tips

When installing the Gates Water Pump 43518, ensure the accessory belt is properly tensioned to avoid premature wear. Use the included gasket and o-rings to prevent coolant leaks. Since this pump does not include a pulley or fan clutch, verify compatibility with existing components. It is recommended to inspect the cooling system hoses and thermostat during installation for comprehensive maintenance.

Quality Assurance and Warranty

Gates manufactures this water pump to meet industry standards for durability and performance. The cast aluminum housing and plastic impeller materials are selected for longevity under typical operating conditions. While specific warranty details are not provided here, Gates products generally come with manufacturer-backed warranties to cover defects in materials and workmanship.

BrandGates
Part Number43518
PositionWater Pump (Standard), Main
Housing MaterialCast aluminum
Impeller MaterialPlastic
Impeller RotationReverse
Includes Back HousingNo
Outlet Quantity2
Thermostat And Housing IncludedNo
ContentsWater pump, gasket, 3 o-rings
Drive StyleAccessory belt
Fan Clutch IncludedNo
Pulley IncludedNo
Timing Belt DrivenNo

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005Land RoverRange Rover4.4LV8GASN/AWater Pump (Standard)
2004Land RoverRange Rover4.4LV8GASN/AWater Pump (Standard)
2003BMW540i4.4LV8GASN/AWater Pump (Standard)
2003BMWX54.4LV8GASMainWater Pump (Standard)
2003BMWX54.6LV8GASMainWater Pump (Standard)
2003BMWZ84.8LV8GASN/AWater Pump (Standard)
2003Land RoverRange Rover4.4LV8GASN/AWater Pump (Standard)
2002BMW540i4.4LV8GASN/AWater Pump (Standard)
2002BMWX54.4LV8GASMainWater Pump (Standard)
2002BMWX54.6LV8GASMainWater Pump (Standard)
2001BMW540i4.4LV8GASN/AWater Pump (Standard)
2001BMW740i4.4LV8GASN/AWater Pump (Standard)
2001BMW740iL4.4LV8GASN/AWater Pump (Standard)
2001BMWX54.4LV8GASMainWater Pump (Standard)
2000BMW540i4.4LV8GASN/AWater Pump (Standard)
2000BMW740i4.4LV8GASN/AWater Pump (Standard)
2000BMW740iL4.4LV8GASN/AWater Pump (Standard)
2000BMWX54.4LV8GASMainWater Pump (Standard)
1999BMW540i4.4LV8GASN/AWater Pump (Standard)
1999BMW740i4.4LV8GASN/AWater Pump (Standard)
1999BMW740iL4.4LV8GASN/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:

115-21301151039333611511713266131-232518-170620815252-8533-93444351851-220855-94655583327571590851032494351898213AW9465CP9465CWP-9344DP303FP2465PEB000030PWP9344RM5H428501AAT4171WH5194WP-9344WPR0021XH428501BA

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