INA ZS-S642 Engine Balance Shaft Sprocket

INA Engine Balance Shaft Sprocket ZS-S642

The INA ZS-S642 engine balance shaft sprocket is built for Chrysler, Dodge, Jeep, and Plymouth applications that require a precise OE-style timing component. It is a direct-fit choice for service work on the balance shaft drive in a wide range of 1986-2007 vehicles.

Key Features

• Engine balance shaft sprocket for valve train and timing service
• Made from powdered metal, steel, or cast iron depending on application design
• Heat treated to exact hardness specifications for consistent wear characteristics
• OE-quality replacement from INA
• Part number ZS-S642 for catalog and service reference

Detailed Description

INA timing gears and sprockets are engineered to meet or exceed original equipment performance standards, and the ZS-S642 follows that approach for balance shaft drive service. This sprocket is used across many Chrysler, Dodge, Jeep, and Plymouth models, including Dodge Caravan, Chrysler PT Cruiser, Jeep Wrangler, and Dodge Dakota applications. If you are replacing a worn balance shaft sprocket on a Chrysler Sebring, Dodge Stratus, or Jeep Liberty, ZS-S642 provides the correct OE-style fitment reference.

This part cross-references INA Global Number 554 0309 100 for the same application. The part number ZS-S642 is also useful when verifying timing component selection during engine repair or rebuild work.

What It Is Used For

• Replacing a worn or damaged engine balance shaft sprocket
• Restoring proper timing gear engagement in the balance shaft drive
• Addressing timing noise caused by sprocket wear
• Correcting drivability issues tied to timing component wear
• Supporting engine service on high-mileage Chrysler, Dodge, Jeep, and Plymouth vehicles

Installation Notes and Tips

Verify engine code, timing layout, and balance shaft location before installation. Fitment includes multiple Chrysler, Dodge, Jeep, and Plymouth models, with some Jeep listings noted as lower position applications. Confirm the existing sprocket reference against ZS-S642 and INA Global Number 554 0309 100 before disassembly. Proper timing alignment during installation is critical to avoid engine performance issues.

Quality Assurance

INA manufactures timing gears and sprockets using quality-controlled materials and heat treatment processes to match OE-level hardness and durability expectations. The ZS-S642 is built for service consistency in demanding engine applications.

Compatible Vehicles

• Fits 1988-2007 Dodge Caravan, N/A
• Fits 2001-2006 Chrysler PT Cruiser, N/A
• Fits 2001-2006 Chrysler Sebring, N/A
• Fits 1996-1998 Chrysler Sebring, N/A
• Fits 1995-2006 Dodge Stratus, N/A
• Fits 2005-2006 Jeep TJ, N/A, Lower
• Fits 2003 Jeep TJ, N/A, Lower
• Fits 2003-2006 Jeep Wrangler, N/A, Lower
• Fits 2002-2005 Jeep Liberty, N/A, Lower
• Fits 2000-2003 Chrysler Voyager, N/A
• Fits 2000 Chrysler Cirrus, N/A
• Fits 1995-1997 Chrysler Cirrus, N/A
• Fits 1996-2000 Plymouth Breeze, N/A
• Fits 1987-2000 Plymouth Voyager, N/A
• Fits 1996-1997 Dodge Grand Caravan, N/A
• Fits 1987-1988 Dodge Grand Caravan, N/A
• Fits 1997 Plymouth Grand Voyager, N/A
• Fits 1988 Plymouth Grand Voyager, N/A
• Fits 1989-1995 Dodge Dakota, N/A
• Fits 1995 Dodge Spirit, N/A
• Fits 1989-1992 Dodge Spirit, N/A
• Fits 1989-1995 Plymouth Acclaim, N/A
• Fits 1988-1994 Dodge Shadow, N/A
• Fits 1988-1994 Plymouth Sundance, N/A
• Fits 1988-1993 Chrysler LeBaron, N/A
• Fits 1986-1993 Dodge Daytona, N/A
• Fits 1988-1992 Chrysler Daytona, N/A
• Fits 1986-1989 Dodge Aries, N/A
• Fits 1986-1989 Dodge Lancer, N/A
• Fits 1986-1989 Plymouth Reliant, N/A
• Fits 1988 Chrysler Dynasty, N/A
• Fits 1988 Chrysler Town & Country, N/A
• Fits 1986-1988 Dodge 600, N/A