16100-09442 Genuine OEM Water Pump with Gasket/O-Ring for Toyota / Lexus V6 3.5L

Product Details

The 16100-09442 Genuine OEM Water Pump is an original Toyota/Lexus engine cooling component designed for compatible vehicles equipped with the 3.5L V6 engine, particularly applications using the Toyota 2GR-FE engine family. This replacement water pump is suitable for professional automotive repair shops, Toyota and Lexus specialists, dealerships, engine rebuilders, automotive parts resellers, exporters, and wholesale buyers requiring an OEM-quality cooling-system replacement.

Toyota officially identifies part number 16100-09442 as a Genuine Toyota Water Pump Assembly. The part supersedes earlier Toyota references including 16100-09441, while OEM parts catalogs also cross-reference previous numbers 16100-09440, 16100-39455, and 16100-39456.

This product listing is offered with the applicable gasket/O-ring components as stated in the package. Toyota dealer catalogs commonly identify 16271-0P010 as the matching water-pump gasket for applicable 3.5L installations. Because Toyota catalogs differ on whether that gasket is packaged with the pump or ordered separately, buyers should confirm the exact contents of the supplied kit before shipment.

Genuine Toyota / Lexus OEM Part 16100-09442

The 16100-09442 Genuine OEM Water Pump is manufactured for Toyota’s engine cooling system and is designed to circulate coolant through the engine and radiator.

The water pump is essential for maintaining stable engine operating temperatures. As the engine runs, heat produced by combustion must be transferred away from critical engine components. The pump continuously moves coolant through the engine cooling passages so that this heat can ultimately be dissipated through the radiator.

Toyota’s official parts information describes 16100-09442 as a water pump assembly used within the cooling system and identifies it as a Genuine Toyota component.

Using the correct OEM pump helps maintain factory-style fitment and connection points when the vehicle application is correctly verified.

OEM Reference Numbers

The 16100-09442 Genuine OEM Water Pump replaces several earlier Toyota/Lexus water-pump numbers.

Common superseded references include:

• 16100-09440
• 16100-09441
• 16100-39455
• 16100-39456

Current reference: 16100-09442

These interchange numbers can help customers identify a suitable replacement when the original vehicle has one of the earlier pump numbers installed.

However, buyers should always check the VIN and engine application rather than relying solely on an interchange number.

Water Pump Gasket 16271-0P010

For many compatible Toyota and Lexus 3.5L installations, the associated water-pump gasket is identified as:

OEM gasket reference: 16271-0P010

Toyota parts diagrams list 16271-0P010 alongside the 16100-09442 water pump on applicable 3.5L vehicles such as the Highlander and Avalon.

Some authorized dealer listings state that the gasket is included with the water pump, while Toyota’s current central product page may state that the gasket is sold separately.

For this reason, the 16100-09442 Genuine OEM Water Pump package should be sold according to the components physically supplied rather than assuming every OEM-boxed pump contains identical sealing hardware.

If an O-ring is also supplied in your kit, its exact reference and application should be confirmed from the actual package.

Compatible Toyota 3.5L Applications

The 16100-09442 Genuine OEM Water Pump is commonly listed for compatible Toyota vehicles equipped with the 3.5L V6 engine.

Verified applications include selected:

Toyota Avalon

Commonly listed for compatible 2005–2018 Toyota Avalon 3.5L V6 applications.

Toyota Camry

Commonly listed for compatible 2007–2017 Toyota Camry 3.5L V6 models.

Toyota Highlander

Listed for compatible 2008–2016 Toyota Highlander 3.5L V6 applications, including certain hybrid configurations where specified in the catalog.

Toyota RAV4

Applicable to selected 2006–2012 Toyota RAV4 3.5L V6 models.

Toyota Sienna

Commonly listed for compatible 2007–2016 Toyota Sienna 3.5L V6 vehicles.

Toyota Venza

Applicable to selected Toyota Venza 3.5L V6 configurations.

Toyota parts catalogs cross-reference 16100-09442 across Avalon, Camry, Highlander, RAV4, Sienna, and Venza applications.

Exact production dates and specifications can vary, so VIN verification is recommended.

Compatible Lexus 3.5L Applications

The 16100-09442 Genuine OEM Water Pump is also used on compatible Lexus models sharing Toyota’s related 3.5L powertrain architecture.

Common applications include selected:

• 2007–2018 Lexus ES350
• 2007–2015 Lexus RX350
• 2010–2015 Lexus RX450h

Lexus OEM parts catalogs identify 16100-09442 as a genuine water pump used across these ES and RX applications.

Fitment should still be verified using the VIN because not every Toyota or Lexus vehicle equipped with a 3.5L V6 uses this specific pump.

For example, longitudinal-engine Lexus models such as certain IS, GS, RC, and other performance-oriented models can use different water-pump references despite having a 3.5L V6.

Therefore, this product should not be advertised as fitting every Toyota or Lexus 3.5L engine.

Designed for the 2GR Engine Family

Many of the applications for the 16100-09442 Genuine OEM Water Pump use Toyota’s 2GR-FE 3.5L V6 engine.

The 2GR engine family has been installed across numerous Toyota and Lexus vehicles, but individual water-pump configurations can differ by:

• Engine variant
• Vehicle platform
• Production date
• Hybrid or non-hybrid configuration
• Market specification
• Engine orientation

The OEM part number should therefore remain the primary identification method.

If the existing pump carries 16100-09440, 16100-09441, 16100-39455, or 16100-39456, 16100-09442 may be the superseding replacement, subject to vehicle confirmation.

Common Symptoms of Water Pump Problems

A failing 16100-09442 Genuine OEM Water Pump replacement may be required when the existing cooling-system pump develops wear or leakage.

Potential symptoms include:

• Coolant leakage near the pump
• Rising engine temperature
• Engine overheating
• Coolant loss
• Bearing noise
• Pulley movement
• Grinding or howling noise
• Visible coolant residue around the pump area

Toyota’s parts guidance notes that coolant leakage, increasing engine temperature, loose pulley movement, or pump noise can indicate that the water-pump assembly requires inspection.

These symptoms are not exclusive to the water pump, so proper cooling-system diagnosis should be performed before replacement.

Genuine OEM Replacement Advantages

When correctly matched, the 16100-09442 Genuine OEM Water Pump provides a factory-specification replacement approach for compatible Toyota and Lexus vehicles.

Potential advantages include:

• OEM Toyota/Lexus fitment
• Correct factory mounting configuration
• Factory-style pulley and housing dimensions
• Compatibility with corresponding cooling-system components
• Genuine OEM part-number traceability
• Replacement for several earlier OEM numbers

Genuine status should always be verified from Toyota/Lexus packaging, labels, and manufacturer markings when originality is important to the customer.

Professional Installation Recommended

Water-pump replacement on Toyota/Lexus 3.5L V6 engines can involve significant disassembly.

Depending on the vehicle, technicians may need to remove or reposition components around the accessory drive and engine cooling system.

Installation should include inspection of:

• Water-pump mounting surface
• Gasket
• O-rings where applicable
• Pulley
• Drive belt
• Belt tensioner
• Coolant hoses
• Coolant condition
• Related seals

The 16100-09442 Genuine OEM Water Pump should be installed according to the appropriate Toyota/Lexus service procedure, including correct fastener tightening specifications and cooling-system bleeding procedures.

Suitable for Professional and Wholesale Buyers

This product is suitable for:

Toyota and Lexus Specialists

For routine engine cooling-system repair.

Automotive Repair Shops

For replacing failed water pumps on compatible 3.5L vehicles.

Engine Rebuilders

For engine overhaul and restoration projects.

Automotive Parts Resellers

For supplying genuine Toyota/Lexus replacement components.

Fleet Maintenance Companies

For maintaining fleets using compatible Toyota and Lexus vehicles.

Wholesale and Export Buyers

The 16100-09442 Genuine OEM Water Pump can be sourced for commercial orders subject to available quantities.

Fitment Verification Before Ordering

Before purchasing the 16100-09442 Genuine OEM Water Pump, provide:

• Vehicle make
• Vehicle model
• Model year
• Engine displacement
• Engine code if available
• VIN
• Existing water-pump number
• Required quantity
• Delivery destination

The VIN is particularly useful because Toyota and Lexus sometimes use different cooling-system components within the same model year.

Request a Quote

For pricing and availability of the 16100-09442 Genuine OEM Water Pump, provide your Toyota or Lexus model, model year, 3.5L engine information, VIN, required quantity, and shipping destination.

The offered package can include the specified gasket/O-ring components, but exact package contents should be confirmed from the physical product before shipment. OEM part number, sealing components, packaging, MOQ, stock, and delivery terms can then be included in the quotation.