SKF VKML91031NA Engine Timing Chain Kit

Timing chain kit for Toyota engines

The SKF VKML91031NA is an engine timing chain kit built around OE-style component replacement for Toyota applications. It combines the chain, guides, tensioners, and sprockets needed for a complete timing service, with timing marks to support accurate alignment during assembly.

• Roller timing chain design for smooth chain-to-sprocket engagement
• Timing marks included for alignment during engine service
• Chain guides and tensioner included for a complete timing system repair
• Sprockets included to replace wear points in the timing drive
• Engineered as a matched kit to reduce friction and chain slippage

Built for complete timing service

SKF assembles this kit as a coordinated timing system rather than a mix of separate parts from different sources. That approach matters when servicing Toyota Tacoma, Toyota Tundra, Toyota 4Runner, and Toyota FJ Cruiser engines, where chain stretch, guide wear, or sprocket wear can affect valve timing and engine operation. The VKML91031NA part number is associated with a full timing chain service solution that follows OE system replacement recommendations.

Common issues this kit addresses

• Timing chain stretch that can affect camshaft and crankshaft synchronization
• Worn guides that create noise and uneven chain movement
• Weak tensioners that allow slack in the timing drive
• Worn sprockets that can contribute to chain skip or poor engagement
• Service repairs that require replacing multiple timing components together

Installation notes and quality

Verify engine application, timing marks, and component alignment before installation. This kit is intended for timing system service where the chain, guides, tensioners, and sprockets are replaced as a matched set. The VKML91031NA is cross-referenced to 13506-31010 for the same application.

SKF timing chain kits are assembled to support long operating life and consistent component interaction under load. The VKML91031NA reflects SKF's OE-oriented approach to timing system replacement for Toyota engine service.