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GMB 170-3000 Engine Water PumpOE Quality 60-Day Returns
Part #: 170-3000

GMB 170-3000 Engine Water Pump

49 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, GS450h, IS300, IS350, RC300, RC350, GS350, IS250, and GS300
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Engine Water Pump for Lexus Applications

The GMB 170-3000 engine water pump is built for Lexus cooling system service and manufactured to meet or exceed OEM specifications. It is an OEM standard replacement with an aluminum housing, making it a direct-fit choice for maintaining proper coolant circulation in supported Lexus GS, IS, and RC models.

Use the GMB 170-3000 when replacing a worn or leaking water pump on Lexus GS350, IS250, IS350, GS450h, IS300, RC300, RC350, and GS300 applications. This part number is also a practical reference for shoppers comparing OE-style cooling system replacements.

Key Features

  • Engine water pump for Lexus cooling system repair
  • Manufactured to meet or exceed OEM specifications
  • OEM standard item grade
  • Aluminum construction for durable service
  • Gaskets included for installation
  • Package contents include a metal gasket, O-ring, and pre-installed stud
  • New condition
  • Part number: 170-3000

Detailed Description

The GMB 170-3000 is an OE-style engine water pump designed for Lexus vehicles that require reliable coolant flow through the engine. Its aluminum construction and OEM standard grading support accurate replacement service on 2006-2018 Lexus GS, IS, and RC platforms. If you are sourcing a Lexus GS350 water pump, Lexus IS350 water pump, or Lexus RC350 water pump, this part provides a direct replacement option built around factory-level specifications. The part number 170-3000 is also useful when cross-checking catalog listings for the same application.

This part cross-references Monroe Shocks & Struts (e.g., 181942) for the same application.

What It Helps Address

  • Coolant leaks from a worn water pump housing or seal area
  • Overheating caused by reduced coolant circulation
  • Noise or bearing wear associated with pump failure
  • Cooling system service during timing or maintenance repairs
  • Replacement of an aging OE water pump on Lexus GS, IS, or RC models

Installation Notes and Tips

Verify engine and vehicle fitment before installation, especially on Lexus GS450h, GS350, IS250, IS350, IS300, RC300, RC350, and GS300 applications. Replace the gasket and O-ring during service, and inspect the cooling system for contamination, hose wear, and coolant condition before refilling. Confirm the mounting surface is clean and flat so the pump seals correctly.

Quality Assurance

GMB manufactures this water pump to meet or exceed OEM specifications, and it is supplied as a new, OEM standard replacement part.

BrandGMB
Part Number170-3000
Gaskets IncludedYes
Item GradeOEM Standard
MaterialAluminum
Package Contents1 METAL GASKET, 1 O-RING, 1 STUD (PRE-INSTALLED)
Product ConditionNew

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2018LexusGS450h3.5LV6N/A
2017LexusGS450h3.5LV6N/A
2017LexusIS3003.5LV6N/A
2017LexusIS3503.5LV6N/A
2017LexusRC3003.5LV6N/A
2017LexusRC3503.5LV6N/A
2016LexusGS450h3.5LV6N/A
2016LexusIS3003.5LV6N/A
2016LexusIS3503.5LV6N/A
2016LexusRC3003.5LV6N/A
2016LexusRC3503.5LV6N/A
2015LexusGS3503.5LV6N/A
2015LexusGS450h3.5LV6N/A
2015LexusIS2502.5LV6N/A
2015LexusIS3503.5LV6N/A
2015LexusRC3503.5LV6N/A
2014LexusGS3503.5LV6N/A
2014LexusGS450h3.5LV6N/A
2014LexusIS2502.5LV6N/A
2014LexusIS3503.5LV6N/A
2013LexusGS3503.5LV6N/A
2013LexusGS450h3.5LV6N/A
2013LexusIS2502.5LV6N/A
2013LexusIS3503.5LV6N/A
2012LexusIS2502.5LV6N/A
2012LexusIS3503.5LV6N/A
2011LexusGS3503.5LV6N/A
2011LexusGS450h3.5LV6N/A
2011LexusIS2502.5LV6N/A
2011LexusIS3503.5LV6N/A
2010LexusGS3503.5LV6N/A
2010LexusGS450h3.5LV6N/A
2010LexusIS2502.5LV6N/A
2010LexusIS3503.5LV6N/A
2009LexusGS3503.5LV6N/A
2009LexusGS450h3.5LV6N/A
2009LexusIS2502.5LV6N/A
2009LexusIS3503.5LV6N/A
2008LexusGS3503.5LV6N/A
2008LexusGS450h3.5LV6N/A
2008LexusIS2502.5LV6N/A
2008LexusIS3503.5LV6N/A
2007LexusGS3503.5LV6N/A
2007LexusGS450h3.5LV6N/A
2007LexusIS2502.5LV6N/A
2007LexusIS3503.5LV6N/A
2006LexusGS3003.0LV6N/A
2006LexusIS2502.5LV6N/A
2006LexusIS3503.5LV6N/A

* 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:

1312306161003943517030001819424240764405051245255431646985498512AW6143CP6143DWP2091NP016143T161T5105US6143WPT137

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

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