HomeBelts and Cooling > Water Pump and Related ComponentsGates 43556 Engine Water Pump - Main
Part #: 43556

Gates 43556 Engine Water Pump - Main

Water Pump (Standard), Main
⚙️ 49 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$251.79Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Water Pump (Standard), Main
🚗Fitment: Mercedes-Benz, CL550, CLK550, CLS550, E550, G550, GL450, GL550, ML550, S450, S550, and SL550
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Cooling Solution for Mercedes-Benz Vehicles

The Gates Water Pump (Standard) part number 43556 is engineered to maintain optimal engine temperature in select Mercedes-Benz models. Designed with durable materials and precise specifications, this engine water pump supports efficient coolant circulation for reliable vehicle performance.

Key Features of Gates Water Pump 43556

  • Housing made from cast aluminum for strength and heat resistance
  • Stamped steel impeller designed for standard rotation
  • Includes water pump and metal gasket for proper sealing
  • Accessory belt drive style for compatibility with belt-driven systems
  • Two outlet ports to support coolant flow requirements
  • Does not include back housing, thermostat, fan clutch, or pulley
  • Not timing belt driven, suitable for specific Mercedes-Benz engine configurations

About the Gates Water Pump (Standard) Product Line

The Gates Water Pump (Standard) line focuses on delivering dependable engine water pumps built with quality materials such as cast aluminum housings and stamped steel impellers. This product line is designed to meet OEM specifications for cooling system components, ensuring compatibility and durability for vehicles like the Mercedes-Benz CL550, CLK550, CLS550, E550, G550, GL450, GL550, ML550, S450, S550, and SL550.

Detailed Product Description

This Gates engine water pump 43556 features a cast aluminum housing that provides corrosion resistance and structural integrity under high-temperature conditions. The stamped steel impeller rotates in a standard direction to efficiently circulate coolant through the engine block and radiator. With two outlet ports, this pump supports proper coolant flow to maintain engine temperature. The accessory belt drive style ensures compatibility with belt-driven cooling systems found in many Mercedes-Benz models. The package includes the water pump and a metal gasket to ensure a secure, leak-free installation. Note that this pump does not include a back housing, thermostat, fan clutch, or pulley, so those components must be sourced separately if needed.

Common Applications and Issues Addressed

  • Replacement for failing or leaking water pumps in Mercedes-Benz CL550, CLK550, CLS550, E550, G550, GL450, GL550, ML550, S450, S550, and SL550 models
  • Resolves overheating caused by inefficient coolant circulation
  • Addresses coolant leaks due to worn or damaged pump housing or seals
  • Prevents engine damage from inadequate cooling system performance
  • Supports maintenance of proper engine operating temperature for optimal performance

Installation Notes and Tips

Ensure the cooling system is fully drained before removing the old water pump. Verify that the accessory belt drive style matches your vehicle’s configuration. Use the included metal gasket to achieve a proper seal and prevent leaks. Inspect related components such as hoses and belts during installation to ensure overall system integrity. Torque all mounting bolts to manufacturer specifications to avoid damage or leaks.

Quality Assurance and Warranty

Gates water pumps are manufactured to meet or exceed OEM standards for durability and performance. The Water Pump (Standard) line undergoes rigorous quality control to ensure reliable operation in demanding automotive environments. Please refer to Gates’ official warranty documentation for specific coverage details related to part number 43556.

BrandGates
Part Number43556
PositionWater Pump (Standard), Main
Housing MaterialCast aluminum
Impeller MaterialStamped steel
Impeller RotationStandard
Includes Back HousingNo
Outlet Quantity2
Thermostat And Housing IncludedNo
ContentsWater pump, metal gasket
Drive StyleAccessory belt
Fan Clutch IncludedNo
Pulley IncludedNo
Timing Belt DrivenNo

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2015Mercedes-BenzG5505.5LV8GASN/AWater Pump (Standard)
2014Mercedes-BenzG5505.5LV8GASN/AWater Pump (Standard)
2013Mercedes-BenzG5505.5LV8GASN/AWater Pump (Standard)
2012Mercedes-BenzG5505.5LV8GASN/AWater Pump (Standard)
2012Mercedes-BenzGL4504.7LV8GASN/AWater Pump (Standard)
2012Mercedes-BenzGL5505.5LV8GASN/AWater Pump (Standard)
2012Mercedes-BenzSL5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzCLS5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzE5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzG5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzGL4504.7LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzGL5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzML5505.5LV8GASMainWater Pump (Standard)
2011Mercedes-BenzS4504.7LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzS5505.5LV8GASN/AWater Pump (Standard)
2011Mercedes-BenzSL5505.5LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzCL5505.5LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzCLS5505.5LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzE5505.5LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzGL4504.7LV8GASMainWater Pump (Standard)
2010Mercedes-BenzGL5505.5LV8GASMainWater Pump (Standard)
2010Mercedes-BenzML5505.5LV8GASMainWater Pump (Standard)
2010Mercedes-BenzS4504.7LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzS5505.5LV8GASN/AWater Pump (Standard)
2010Mercedes-BenzSL5505.5LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzCL5505.5LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzCLS5505.5LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzE5505.5LV8GASMainWater Pump (Standard)
2009Mercedes-BenzGL4504.7LV8GASMainWater Pump (Standard)
2009Mercedes-BenzGL5505.5LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzML5505.5LV8GASMainWater Pump (Standard)
2009Mercedes-BenzS4504.7LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzS5505.5LV8GASN/AWater Pump (Standard)
2009Mercedes-BenzSL5505.5LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzCL5505.5LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzCLS5505.5LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzE5505.5LV8GASMainWater Pump (Standard)
2008Mercedes-BenzGL4504.7LV8GASMainWater Pump (Standard)
2008Mercedes-BenzGL5505.5LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzML5505.5LV8GASMainWater Pump (Standard)
2008Mercedes-BenzS4504.7LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzS5505.5LV8GASN/AWater Pump (Standard)
2008Mercedes-BenzSL5505.5LV8GASN/AWater Pump (Standard)
2007Mercedes-BenzCL5505.5LV8GASN/AWater Pump (Standard)
2007Mercedes-BenzCLK5505.5LV8GASN/AWater Pump (Standard)
2007Mercedes-BenzCLS5505.5LV8GASN/AWater Pump (Standard)
2007Mercedes-BenzGL4504.7LV8GASMainWater Pump (Standard)
2007Mercedes-BenzS5505.5LV8GASN/AWater Pump (Standard)
2007Mercedes-BenzSL5505.5LV8GASN/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:

131-2384147-1050273200020143556943556A2732000201CP6235CWP-2227DP423QPW68WP-2227WPR0006

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