INA ZC-9-4186 Engine Timing Chain - Upper

INA Engine Timing Chain ZC-9-4186

INA ZC-9-4186 is an engine timing chain for upper timing applications on select Buick, Cadillac, and Oldsmobile vehicles. It is built to OE-quality standards with heat-treated plates and pins for controlled hardness, durability, and consistent timing performance.

Key Features

• Engine timing chain for upper valve train timing applications
• Heat-treated chain plates and pins for durability
• Built to meet or exceed OE quality and performance targets
• Direct replacement style for select GM applications
• Part number ZC-9-4186 for catalog and service lookup

Vehicle Fitment

• Fits 2006-2011 Buick Lucerne, Upper
• Fits 1994-2005 Cadillac DeVille, Upper
• Fits 1993-2004 Cadillac Seville, Upper
• Fits 2004 Cadillac SRX, Upper
• Fits 2004 Cadillac XLR, Upper
• Fits 2001-2003 Oldsmobile Aurora, Upper
• Fits 1995-1999 Oldsmobile Aurora, Upper
• Fits 1993-2002 Cadillac Eldorado, Upper
• Fits 1993 Cadillac Allante, Upper

Detailed Description

INA ZC-9-4186 timing chain is engineered for upper timing chain service on a range of GM vehicles, including Buick Lucerne, Cadillac DeVille, Cadillac Seville, Cadillac SRX, Cadillac XLR, Oldsmobile Aurora, Cadillac Eldorado, and Cadillac Allante. The chain plates and pins are heat treated to precise hardness levels to support long-term wear resistance and stable timing operation in the engine valve train.

This part cross-references 5530665100 for the same application. Use ZC-9-4186 when servicing upper timing chain wear on compatible Buick, Cadillac, and Oldsmobile engines where OE-style timing accuracy is required.

Common Repair Uses

• Replacing a stretched or worn upper timing chain
• Correcting timing noise from the valve train area
• Restoring camshaft and crankshaft synchronization
• Addressing timing-related drivability or performance concerns
• Servicing high-mileage GM engines with timing chain wear

Installation Notes and Tips

Confirm engine code, timing system layout, and upper chain position before installation. Inspect related timing components, guides, and tensioners during service, and follow factory timing procedures to maintain correct cam timing. Verify fitment by year, make, model, and upper position before ordering part number ZC-9-4186.

Quality Assurance

INA timing chains are manufactured to meet or exceed OE quality and performance expectations. The heat-treated plates and pins are specified for consistent hardness, durability, and dependable service in engine timing applications.