INA ZC-2528S Engine Timing Gear Set

INA ZC-2528S Timing Chain Kit

INA ZC-2528S is an engine timing gear set for heavy-duty Chevrolet and GMC applications. It is built for valve train service where accurate chain control, tensioning, and guide support are required to restore timing system operation.

Key Features

• Engine timing gear set for valve train repair
• Includes the essential timing chains, tensioners, and guides called out by INA
• Some applications also include gears and sprockets
• High-performance chain additive formulated for Schaeffler by Liqui Moly is included in certain kits
• Designed for heavy-duty Chevrolet and GMC truck and van applications
• Part number: ZC-2528S

Detailed Description

INA timing chain kits are assembled to support a complete timing system repair with the core components needed for proper chain control. Depending on the application, the kit may also include gears and sprockets, along with a specially formulated chain additive that reduces friction during break-in and lowers run-in wear. This makes the INA ZC-2528S a practical choice for service work on older Chevrolet and GMC engines where timing accuracy and component condition are critical. This part cross-references 5540933200 for the same application.

Compatible With 1967-1989 Chevrolet and GMC heavy-duty platforms, including Chevrolet C10, C20, C30, K10, K20, K30, G10, G20, G30, P10, P20, P30, Blazer, El Camino, Camaro, Malibu, Nova, and GMC C1500, C2500, C3500, G1500, G2500, G3500, K1500, K2500, K3500, P1500, P2500, P3500, Jimmy, and van applications listed in the fitment data. The part number ZC-2528S is also associated with the same heavy-duty timing service coverage across these Chevrolet and GMC models.

What It Helps Address

• Timing chain stretch and related valve timing inconsistency
• Worn chain guides or tensioner components
• Noisy timing system operation
• Service needs on high-mileage heavy-duty Chevrolet and GMC engines
• Break-in wear after timing system replacement

Installation Notes and Quality

Verify engine code, timing cover configuration, and application notes before installation. Follow factory timing marks and service procedures during assembly, and inspect related sprockets and sealing surfaces for wear before reassembly. INA timing chain kits are supplied with the essential timing components needed for a proper repair, and the included chain additive is used in certain applications to reduce friction during initial operation.

Quality assurance is supported by INA and Schaeffler application engineering for timing system service parts. Part number ZC-2528S should be matched to the exact vehicle listing before installation.