INA ZC-78415 Engine Timing Set

INA Timing Chain Kit for GM V8 Applications

INA ZC-78415 is a timing chain kit for select Chevrolet and GMC trucks and vans from 1996-2000. It brings together the core timing components needed for a proper engine timing service, with fitment covering C2500, C3500, K2500, K3500, Express 3500, Savana 3500, and related Suburban and P-series applications.

Key Features

• Complete timing chain kit for engine timing service
• Includes chains, tensioners, and guides
• Some applications also include gears and sprockets
• High-performance chain additive formulated for Schaeffler by Liqui Moly
• Additive helps reduce break-in friction and lowers run-in wear by up to 20%
• INA part number ZC-78415 for catalog lookup and ordering

Detailed Description

INA timing chain kits are built to provide the essential components needed to restore correct valve timing in one service package. This kit is listed for 1996-2000 Chevrolet C2500, C3500, Express 3500, K2500, and K3500; 1996-2000 GMC C2500, C3500, K2500, K3500, and Savana 3500; 1996-1999 Chevrolet C2500 Suburban, K2500 Suburban, and P30; 1996-1999 GMC C2500 Suburban and K2500 Suburban; and 1997-1999 GMC P3500. The included additive is formulated to reduce friction during initial operation and help limit early wear as the new timing components seat.

This part cross-references 5540915200 for the same application.

What It Helps Fix

• Excessive timing chain noise
• Worn or stretched chain components
• Timing drift that affects engine performance
• Rough running caused by inaccurate valve timing
• Service needs on high-mileage Chevrolet and GMC truck or van engines

Installation Notes

Verify engine application by year, make, model, and timing drive configuration before installation. Replace related wear components during timing service and follow factory timing marks and torque specifications. For search accuracy, this INA timing chain kit ZC-78415 is commonly referenced for Chevrolet C2500, GMC K3500, and other listed GM truck and van applications.

Quality Assurance

INA is part of Schaeffler, and its timing chain kits are assembled to include the primary components needed for a complete timing repair. The included chain additive is supplied through Liqui Moly for controlled break-in lubrication support.