INA ZG-9-5739 Engine Timing Chain Tensioner

Engine Timing Chain Tensioner for Ford V8 Applications

INA ZG-9-5739 is an engine timing chain tensioner built for Ford timing system service where OE-level fit and material consistency matter. It is listed for select Ford F-150 and Ford Mustang applications across the 2011-2020 model years.

Key Features

• Engine timing chain tensioner for valve train service
• INA timing component engineered to meet or exceed OE quality and performance expectations
• Plastic construction matched to OEM PA66 and PA46 material and hardness requirements
• Direct fitment for select Ford F-150 and Ford Mustang applications
• Part number ZG-9-5739 for catalog and service lookup

Fitment Details

• Fits 2018-2020 Ford F-150, N/A.
• Fits 2015-2017 Ford F-150, N/A. INA Global Number 555 0138 100.
• Fits 2011-2014 Ford F-150, N/A. INA Global Number 555 0138 100; Arm; From.
• Fits 2011-2019 Ford Mustang, N/A. INA Global Number 555 0138 100.

This part cross-references 5550138100 for the same application.

What It Helps Address

• Timing chain slack at the tensioner assembly
• Noise from a worn or weakened chain tensioner
• Valve timing instability caused by tension loss
• Service replacement for a damaged or fatigued timing chain guide/tensioner setup

Installation Notes

Verify engine code, timing system configuration, and model-year coverage before ordering. Follow factory timing procedures during installation, and inspect related chain guides, seals, and wear surfaces while the front cover is open. Confirm the correct side and component revision against the vehicle’s service information for Ford F-150 and Ford Mustang applications.

Quality Assurance

INA states that its timing chain guides are built to meet or exceed OE quality and performance standards, with plastic material properties aligned to OEM PA66 and PA46 specifications.