Walker 590-1256 Engine Variable Valve Timing (VVT) Solenoid

Walker 590-1256 VVT Solenoid Overview

Walker Products 590-1256 is an engine variable valve timing (VVT) solenoid for select Infiniti applications. It is built for vehicles that use variable cam timing and includes the oil control valve assembly noted in the fitment data.

Compatible With 2009-2013 Infiniti FX50, 2011-2012 Infiniti M56, and 2011 Infiniti QX56 applications listed below.

Key Features

• Engine variable valve timing (VVT) solenoid for select Infiniti engines
• Includes oil control valve per application notes
• Walker Products 590-1256 for direct replacement service
• Built to meet or exceed OEM standards and specifications
• Supported by Walker Products engineering and technical resources

Product Details

Walker Products is a long-established automotive aftermarket manufacturer focused on fuel system and engine management components. The Walker Products line includes sensors, injectors, ignition-related parts, and other engine control components, with production backed by ISO 9001/IATF16949 quality systems. The 590-1256 VVT solenoid is intended for variable cam timing systems on the listed Infiniti FX50, M56, and QX56 models, helping restore proper oil control to the cam timing system when the original unit is worn or malfunctioning.

This part cross-references Dorman OE Solutions 916-728 for the same application.

What It Helps Fix

• Check engine light related to variable valve timing performance
• Rough idle caused by unstable cam timing control
• Loss of power or sluggish acceleration from VVT faults
• Oil control valve or solenoid-related timing response issues
• Cam timing codes on Infiniti FX50, M56, or QX56 vehicles

Installation Notes and Tips

Verify engine code, model year, and the application notes before ordering. Confirm the original part number and inspect the connector, oil passages, and sealing surfaces during replacement. After installation, clear diagnostic trouble codes and road test the vehicle to confirm normal variable cam timing operation.

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 support resources.