INA ZS-S-243 Engine Timing Camshaft Sprocket

INA Timing Gear Sprocket for Oldsmobile V8

The INA ZS-S-243 engine timing camshaft sprocket is built for select Oldsmobile 88 and Oldsmobile 98 applications from 1950-1953. It is engineered to OE-quality standards for accurate valve timing and dependable engine operation.

• Engine timing camshaft sprocket for valve train service
• Fits 1950 Oldsmobile 88, N/A
• Fits 1950-1953 Oldsmobile 98, N/A
• Made from powdered metal, steel, or cast iron depending on application design
• Heat treated to exact hardness specifications
• INA part number ZS-S-243

Detailed Product Information

INA timing gear sprockets are manufactured to meet or exceed OE quality and performance expectations. For Oldsmobile 88 and Oldsmobile 98 timing service, this sprocket is designed to maintain proper camshaft drive engagement and consistent timing alignment. The ZS-S-243 part number also cross-references INA Global Number 554 0395 100 for the same application.

Common Repair Uses

• Restoring worn or damaged camshaft sprocket teeth
• Correcting timing chain drive wear in vintage Oldsmobile engines
• Addressing timing noise caused by sprocket wear
• Replacing a sprocket with incorrect tooth condition or fit

Installation Notes

Verify engine timing marks, chain condition, and camshaft alignment before installation. Because this is a valve train timing component for classic Oldsmobile applications, careful indexing during assembly is important to preserve correct ignition and valve timing. Confirm vehicle year and model before ordering the ZS-S-243.

Quality Assurance

INA manufactures timing gears and sprockets using controlled materials and heat-treatment processes to support OE-level fit and performance. The ZS-S-243 is intended for direct replacement in the listed Oldsmobile applications.