INA ZS-S412T Engine Timing Camshaft Sprocket

INA Timing Gear for Jeep Valve Train Service

The INA ZS-S412T timing gear/sprocket is an OE-quality engine timing camshaft sprocket for classic Jeep applications. Built for Jeep Cherokee, J10, J20, Wagoneer, CJ5, and CJ7 models, it supports accurate camshaft timing in 1972-1980 engines.

• Engine timing camshaft sprocket for Jeep valve train service
• Fits 1972-1980 Jeep applications, including Cherokee, J10, J20, Wagoneer, CJ5, and CJ7
• Made from powdered metal, steel, or cast iron depending on application design
• Heat treated to exact hardness specifications
• INA part number ZS-S412T for direct identification
• Cross-references INA Global Number 554 0612 100

Detailed Product Overview

INA designs this timing gear/sprocket to meet or exceed OE quality and performance standards. The sprocket is manufactured from high-strength metal materials and heat treated for controlled hardness, helping maintain consistent camshaft drive operation in compatible Jeep engines. This part number, ZS-S412T, is used across multiple classic Jeep platforms, including Jeep Cherokee and Jeep Wagoneer timing gear applications.

This part cross-references INA Global Number 554 0612 100 for the same application.

Common Problems This Part Addresses

• Worn or damaged camshaft sprocket teeth
• Timing chain drive noise from sprocket wear
• Incorrect camshaft timing caused by sprocket deterioration
• Engine performance issues related to timing gear wear
• Service replacement for aging Jeep valve train components

Installation Notes and Tips

Verify engine timing marks before removal and installation. Inspect the timing chain, related gears, and valve train components at the same time, since wear in one part can affect the rest of the system. Confirm vehicle application by year, make, and model before ordering ZS-S412T.

Quality Assurance

INA manufactures this sprocket to OE-level quality and performance expectations using controlled material selection and heat treatment for consistent hardness. Compatible With 1972-1980 Jeep Cherokee, J10, J20, Wagoneer, CJ5, and CJ7 timing gear applications.