INA ZS-S810T Engine Timing Camshaft Sprocket

INA ZS-S810T Timing Camshaft Sprocket

The INA ZS-S810T is an engine timing camshaft sprocket built for select GM V6 applications. It is engineered to meet or exceed OE quality and performance, with construction in powdered metal, steel, or cast iron and heat treatment to exact hardness specifications.

Compatible With Buick Allure, LaCrosse, Lucerne, LeSabre, Park Avenue, Regal, and Riviera; Chevrolet Impala, Monte Carlo, Camaro, Lumina, and Lumina APV; Pontiac Grand Prix, Bonneville, and Firebird; and Oldsmobile 88 and 98 applications listed below.

• Engine timing camshaft sprocket for valve train service
• INA part number ZS-S810T for direct catalog lookup
• OE-style fitment for select GM camshaft applications
• Built from durable metal materials with controlled heat treatment
• Cross-reference: 5540516100

Fitment Details

This sprocket fits 2005-2009 Buick Allure, cam, L27/L36 engines; 2005-2009 Buick LaCrosse, cam, L27/L36 engines; 2006-2008 Buick Lucerne, cam, L27/L36 engines; 1997-2008 Pontiac Grand Prix, cam; 1996-2005 Buick LeSabre, cam, L27/L36 engines; 1995-2005 Buick Park Avenue, cam, L27/L36 engines; 2000-2005 Chevrolet Impala, cam; 1998-2005 Chevrolet Monte Carlo, cam; 1995-2005 Pontiac Bonneville, cam; 1996-2004 Buick Regal, cam, L27/L36 engines; 1995-2002 Chevrolet Camaro, cam; 1995-2002 Pontiac Firebird, cam; 1998-1999 Chevrolet Lumina, cam; 1995-1997 Buick Riviera, cam, L27/L36 engines; 1995 Chevrolet Lumina APV, cam; 1995 Oldsmobile 88, cam; 1995 Oldsmobile 98, cam; and 1992-1995 Pontiac Bonneville, 2nd design, 48 teeth.

What It Helps Address

• Worn or damaged camshaft sprocket teeth
• Timing chain drive noise from sprocket wear
• Incorrect cam timing caused by a failing sprocket
• Service replacement during timing component repair
• Restoration of proper valve train synchronization

Installation Notes

Verify engine code, tooth count, and application notes before installation. This part number, ZS-S810T, is listed for multiple GM platforms, so confirm the exact model year and engine family against the fitment notes before assembly. Timing component replacement should be performed with the engine properly timed and inspected for related wear in the chain, guides, and tensioner.

Quality Assurance

INA timing gears and sprockets are manufactured to OE-level standards using controlled materials and heat treatment processes. The brand positions this sprocket as a precision replacement for select GM camshaft drive applications.