INA ZS-S1250 Engine Timing Camshaft Sprocket

Engine Timing Camshaft Sprocket for Honda and Acura

The INA ZS-S1250 engine timing camshaft sprocket is built for OE-style timing system service on select Honda and Acura applications. It is a direct-fit exhaust camshaft sprocket for the listed vehicles, with construction materials and heat treatment chosen to match factory performance requirements.

Compatible With 2006-2011 Honda Civic, exhaust, and 2004-2008 Acura TSX. This part cross-references 5540543100 for the same application.

Key Features

• INA timing gear/sprocket for engine valve train service
• OE-quality replacement for the exhaust camshaft position listed in fitment
• Made from powdered metal, steel, or cast iron depending on application design
• Heat treated to exact hardness specifications
• Part number ZS-S1250 for catalog and service identification

Product Details

The INA ZS-S1250 is an engine timing camshaft sprocket used in the valve train timing system to maintain accurate camshaft timing. It is listed for 2006-2011 Honda Civic exhaust applications and 2004-2008 Acura TSX applications, making it a focused replacement for timing service on these engines. The sprocket is manufactured to meet or exceed OE quality and performance expectations, with material selection and heat treatment designed for consistent durability in engine timing operation. If you are sourcing an exhaust camshaft sprocket for a Honda Civic or Acura TSX, ZS-S1250 is the catalog reference to verify.

Common Issues This Part May Address

• Worn or noisy camshaft sprocket teeth
• Timing chain or belt indexing concerns related to sprocket wear
• Incorrect camshaft timing caused by damaged timing gear surfaces
• Service replacement during engine timing component repair
• Restoration of proper exhaust camshaft drive function

Installation Notes and Tips

Confirm engine code, timing layout, and exhaust-side application before installation. Replace related timing components as needed during service, and follow factory timing marks and torque procedures exactly. After installation, rotate the engine by hand and recheck timing alignment before starting the engine. Verify fitment by part number ZS-S1250 and the OE cross-reference 5540543100.

Quality Assurance

INA timing sprockets are produced to OE-level material and hardness specifications for consistent timing system performance. This part is identified by INA part number ZS-S1250 and is cataloged as a direct replacement for the listed Honda and Acura applications.