INA ZG-91228 Engine Timing Chain Tensioner - Lower

INA Timing Chain Tensioner for Toyota V8 Applications

The INA ZG-91228 engine timing chain tensioner is built for select Toyota V8 applications that use a lower timing chain arm. It is a direct-fit engine timing component for 2010-2016 Toyota 4Runner, 2010-2014 Toyota FJ Cruiser, and 2011-2014 Toyota Tundra.

Key Features

• INA engine timing chain tensioner for lower chain service
• Fits 2010-2016 Toyota 4Runner, lower
• Fits 2010-2014 Toyota FJ Cruiser, lower
• Fits 2011-2014 Toyota Tundra, lower
• Uses plastic material formulated to match OEM PA66 and PA46 hardness requirements
• Part number ZG-91228 for catalog and service matching

Detailed Description

INA ZG-91228 is an engine timing chain tensioner component for Toyota timing chain systems that require a lower arm configuration. INA states that its timing chain guides are engineered to meet or exceed OE quality and performance, and the plastic material is matched to OEM PA66 and PA46 grade requirements for material and hardness. This makes the part a practical choice when servicing timing components on Toyota 4Runner, Toyota FJ Cruiser, and Toyota Tundra applications with the listed lower position fitment. This part cross-references 5550165100 for the same application.

What It Helps Address

• Timing chain slack at the lower chain path
• Noise from worn timing chain guide components
• Chain control issues caused by degraded plastic guide material
• Service replacement for a worn lower timing chain tensioner assembly
• Fitment-specific repair needs on Toyota 4Runner, FJ Cruiser, and Tundra engines

Installation Notes and Tips

Verify engine code, timing cover configuration, and lower-position application before installation. Match the part number ZG-91228 to the vehicle service information and inspect related timing components for wear during repair. Proper timing alignment is critical during installation, so follow factory procedures for chain indexing and tensioner setup.

Quality Assurance

INA positions this timing chain guide and tensioner component as an OE-quality replacement built to meet OEM material and hardness standards for the specified application.