Gates T43138 Engine Timing Belt Tensioner

Gates T43138 Timing Belt Tensioner Overview

The Gates T43138 timing belt tensioner is an OE-exact hydraulic replacement for Subaru and Saab applications that rely on precise belt control. Built with a steel body and smooth backside contact surface, it helps maintain proper timing belt tension across the engine’s operating range.

Gates PowerGrip timing tensioners are engineered and tested to match OE fit and performance, with a focus on belt life and consistent tension during service. This makes the T43138 a direct choice for Subaru Impreza, Forester, Legacy, Outback, WRX, Baja, and Saab 9-2X timing belt service.

Key Features

• OE Exact fit and performance for confirmed applications
• Hydraulic tensioner design for controlled belt loading
• Steel construction for durability in engine service
• Smooth/backside contact surface
• Designed to maintain optimal timing belt tension
• Includes tensioner and Loctite threadlocker
• Cross-reference: Dayco 85065

Detailed Product Description

Gates T43138 is a hydraulic engine timing belt tensioner designed for interference-engine Subaru applications where stable belt tension is critical. The PowerGrip line is built to OE-quality standards, and this unit is engineered to match the original fit and operating characteristics needed during timing belt replacement. The result is a direct-fit timing belt tensioner for Subaru Forester, Legacy, Outback, Impreza, WRX, Baja, and Saab 9-2X models listed in the fitment data.

With a steel housing, 32 mm inside diameter, 60 mm outside diameter, and 34 mm width, this tensioner is built around the dimensions required for the application. The hydraulic design helps control belt movement and reduces the need for manual tensioning during installation. Part number T43138 is also referenced by several OE and aftermarket numbers for the same application.

Vehicle Fitment

• Fits 2000-2014 Subaru Impreza, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2012-2014 Subaru WRX, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2000-2013 Subaru Forester, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2000-2012 Subaru Legacy, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2000-2012 Subaru Outback, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2005-2006 Saab 9-2X, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 2003-2006 Subaru Baja, N/A. Compatible with interference engines; Timing Belt Tensioner.
• Fits 1998-1999 Subaru Forester, N/A. Integrated Assembly; Interference engine application; Timing Belt Tensioner.
• Fits 1998-1999 Subaru Impreza, N/A. Integrated Assembly; Interference engine application; Timing Belt Tensioner.
• Fits 1997-1999 Subaru Legacy, N/A. Integrated Assembly; Interference engine application; Timing Belt Tensioner.
• Fits 1998 Subaru Impreza, N/A. Integrated assembly included in the engine timing belt kit with water pump; Timing Belt Tensioner.
• Fits 1997-1998 Subaru Legacy, N/A. Integrated assembly included in the engine timing belt kit with water pump; Timing Belt Tensioner.

Common Problems This Part Can Address

• Timing belt slack caused by a worn hydraulic tensioner
• Noise or vibration from an aging belt drive system
• Incorrect belt tension after timing belt service
• Premature timing belt wear from inconsistent tension control
• Service issues on Subaru interference engines that require precise belt positioning

Installation Notes and Tips

Use this Gates T43138 tensioner during timing belt service on the listed Subaru and Saab applications. Follow the vehicle service procedure for belt alignment, tension setting, and torque specifications, and inspect related timing components before reassembly. The included Loctite threadlocker supports proper fastener retention where specified by the service procedure.

For Subaru Impreza, Forester, Legacy, Outback, WRX, and Baja timing belt jobs, verify engine code and model year against the fitment notes before installation. This part is designed for interference-engine applications, so correct timing alignment is essential.

Quality Assurance

Gates PowerGrip timing tensioners are engineered and tested to OE-quality or OE-exact standards for fit and performance. The design focus is on maintaining belt life and stable tension in service applications. Part number T43138 is built for direct replacement use in the confirmed Subaru and Saab timing belt applications listed above.