INA ZC-9-3649X3 Engine Timing Set

INA Timing Chain Kit for GM V8 Applications

The INA ZC-9-3649X3 engine timing set is a premium timing chain kit built for select 1999-2000 Chevrolet and GMC trucks and vans. It brings together the essential timing components needed for a proper repair, with chain guides included and application-specific coverage for single roller .334 setups.

Key Features

• Premium-grade INA engine timing set
• Includes timing chains, tensioners, and guides as part of the kit design
• Chain guides included
• Single roller .334 application notes for listed GM vehicles
• Part number ZC-9-3649X3
• Cross-reference: 5591742100

Detailed Product Overview

INA ZC-9-3649X3 is an engine timing set for select Chevrolet C2500, C3500, Express 3500, K2500, K3500, and P30 models, plus GMC C2500, C3500, K2500, K3500, Savana 3500, and P3500 applications. This timing chain kit is engineered for the valve train and timing system, helping restore accurate camshaft and crankshaft synchronization in compatible GM engines. The kit is identified with INA Global Number 559 1742 100 and is listed for 1999-2000 Chevrolet and GMC applications.

What This Timing Set Helps Address

• Timing chain stretch or wear
• Noisy or loose timing chain operation
• Worn timing guides
• Incorrect valve timing caused by timing component wear
• Engine performance issues related to timing system degradation

Installation Notes and Tips

Verify engine configuration, chain style, and OE reference before installation. This kit includes chain guides, but the listing does not include a tensioner, gaskets, or drive sprocket. Follow factory timing marks and service procedures during assembly, and inspect related timing components for wear before closing the engine.

Quality Assurance

INA timing chain kits are built as premium replacement components for timing system service. The manufacturer states that these kits are assembled to include the essential parts needed for a correct repair, and some INA kits use a specially formulated chain additive from Liqui Moly to reduce break-in friction and lower initial wear in applicable designs.