INA ZS-S776T Engine Timing Camshaft Sprocket

INA Timing Camshaft Sprocket ZS-S776T

INA ZS-S776T is an engine timing camshaft sprocket for select GM and Isuzu applications. It is built to OE-quality standards using powdered metal, steel, or cast iron construction with heat-treated hardness control for consistent timing performance.

Key Features

• Engine timing camshaft sprocket for valve train service
• OE-quality replacement for select Chevrolet, GMC, Oldsmobile, and Isuzu vehicles
• Manufactured from powdered metal, steel, or cast iron, depending on application design
• Heat treated to exact hardness specifications for durability
• Cross-reference: 5540504100

Detailed Description

This INA timing gear/sprocket is engineered for direct replacement use in compatible applications such as the Chevrolet Astro, Chevrolet S10, GMC Safari, and Oldsmobile Bravada. The ZS-S776T part number is associated with INA Global Number 554 0504 100 and is listed across a wide range of 1992-2001 GM trucks, vans, and SUVs, including LB4 engine applications and camshaft-specific listings.

Use INA ZS-S776T when servicing the cam timing drive on vehicles such as the Chevrolet Blazer, GMC Jimmy, and Isuzu Hombre. The sprocket is designed to maintain proper camshaft timing relationship in engines that rely on precise valve train synchronization.

Common Service Uses

• Restoring camshaft timing after timing component wear
• Replacing a noisy, worn, or damaged timing sprocket
• Correcting timing chain drive issues during engine repair
• Supporting accurate valve timing on Chevrolet Astro and GMC Safari applications
• Servicing cam timing components on Chevrolet S10 and GMC Sonoma engines

Installation Notes and Tips

Verify engine code, model year, and timing component configuration before installation. This part is listed for multiple GM platforms and notes, including cam and LB4 engine applications, so matching the exact vehicle and engine setup is important. Inspect the timing chain, guides, and related valve train components during service to avoid repeat repairs.

Quality Assurance

INA timing sprockets are manufactured to meet or exceed OE quality and performance expectations. The brand uses controlled material selection and heat treatment processes to help maintain dimensional accuracy and durability in engine timing service.