INA ZT0019 Lower Timing Chain Tensioner Piston 5510019100

The INA ZT0019 is a lower engine timing chain tensioner piston engineered to OE specifications for BMW high-performance applications. Cross-referenced under INA part number 5510019100 and BMW OEM part number 11311406261, this tensioner piston maintains correct timing chain tension to keep the crankshaft and camshafts precisely synchronized throughout the engine's operating range.

A worn or weakened timing chain tensioner piston can cause the engine to jump timing, resulting in serious internal engine damage. Replacing this component during timing chain service — or whenever timing chains are removed — is strongly recommended to prevent costly repairs down the road.

Key Features:

• Direct OE replacement — matches factory fit, form, and function
• Manufactured by INA (Schaeffler Group), a premier OEM supplier to European automakers
• Lower position tensioner piston; engineered for precise chain load control
• Built to the same exacting tolerances as original equipment parts
• OE Spec quality for reliable, long-term performance
• Cross-references: INA 5510019100 | BMW OEM 11311406261 | Also listed as 551001910

INA is a division of the Schaeffler Group, one of the world's largest bearing and engine component suppliers. Their timing chain tensioner pistons are produced with the same materials and manufacturing standards used in original factory assembly, ensuring confident installation and dependable service life.