Walker 595-1017 Engine Variable Valve Timing (VVT) Sprocket

Walker 595-1017 VVT Sprocket Overview

Walker Products 595-1017 is an engine variable valve timing (VVT) sprocket for select Toyota and Lexus applications. It is built for direct-fit replacement use on vehicles such as the Toyota Camry, Avalon, Sienna, Highlander, Venza, RAV4, and Lexus ES350, RX350, and RX450h.

Walker Products has supplied automotive fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting OEM standards and specifications. The Walker Products line is backed by ISO 9001/IATF16949-certified quality systems.

Key Features

• Engine variable valve timing (VVT) sprocket for valve train service
• Direct replacement part number 595-1017
• Fits select Toyota Camry, Avalon, Sienna, Highlander, Venza, and RAV4 applications
• Fits select Lexus ES350, RX350, and RX450h applications
• Walker Products OE-style engine management component
• Cross-references Dorman OE Solutions 917-252 for the same application

Detailed Description

This Walker Products VVT sprocket is intended for vehicles equipped with variable valve timing systems that rely on precise camshaft control. Part number 595-1017 is listed for 2006-2017 Toyota Avalon, 2007-2017 Toyota Camry, 2007-2016 Toyota Sienna, 2009-2016 Toyota Highlander, 2009-2016 Toyota Venza, 2010-2012 Toyota RAV4, 2007-2011 Lexus RX350, 2012-2017 Lexus ES350, 2013-2015 Lexus RX350, and 2013-2015 Lexus RX450h. If you are servicing a Toyota Camry VVT sprocket or replacing a Lexus RX350 variable valve timing sprocket, this part number provides a direct-fit service option.

Walker Products 595-1017 is engineered as an OE-style replacement for engine timing and valve train repair work. It is also referenced by Standard Ignition VVT527 and other listed interchange numbers for the same application.

What It Helps Address

• Rattling or abnormal noise from the VVT sprocket area
• Check engine lights related to cam timing or valve timing performance
• Rough idle caused by inconsistent camshaft timing control
• Loss of power or drivability issues tied to variable valve timing operation
• Timing-related service needs during engine repair or overhaul

Installation Notes and Tips

Verify engine code, model year, and VVT system configuration before ordering. This part is listed for multiple Toyota and Lexus models, so confirm the exact application against the vehicle’s timing components and service information. Follow factory timing procedures, torque specifications, and cam timing alignment steps during installation.

Because this is a valve train component, careful inspection of related timing parts is recommended during service. Confirm the replacement matches the original sprocket design before assembly.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company supports production with in-house manufacturing, product management, engineering, and technical documentation, and operates under ISO 9001/IATF16949 certification.