INA ZT-9-5259 Engine Timing Belt Idler

INA Timing Belt Idler for Toyota and Lexus

INA ZT-9-5259 is an engine timing belt idler pulley for select Toyota and Lexus applications. It supports accurate timing drive operation by helping maintain proper belt routing and gear ratio control in the valve train.

Key Features

• Engine timing belt idler pulley for the valve train
• INA Global Number 531 0990 100
• Built for timing drive power transmission and stable belt tracking
• Direct replacement style for select Toyota and Lexus engines
• Part number: ZT-9-5259

Application Details

Compatible With select Lexus SC430, GX470, GS430, LX470, LS430, GS400, LS400, and SC400 models, plus Toyota 4Runner, Sequoia, Tundra, and Land Cruiser applications across the listed years. This part cross-references 5310990100 for the same application. The INA ZT-9-5259 is used in timing belt service where consistent pulley operation is needed to keep the engine timing system aligned.

• Fits 2002-2010 Lexus SC430, N/A
• Fits 2003-2009 Lexus GX470, N/A
• Fits 2003-2009 Toyota 4Runner, N/A
• Fits 2001-2009 Toyota Sequoia, N/A
• Fits 2000-2009 Toyota Tundra, N/A
• Fits 2001-2007 Lexus GS430, N/A
• Fits 1998-2007 Lexus LX470, N/A
• Fits 1998-2007 Toyota Land Cruiser, N/A
• Fits 2001-2006 Lexus LS430, N/A
• Fits 1998-2000 Lexus GS400, N/A
• Fits 1990-2000 Lexus LS400, N/A
• Fits 1992-2000 Lexus SC400, N/A

What It Helps Address

• Timing belt pulley wear or noise
• Uneven belt tracking in the timing drive
• Service replacement during timing belt maintenance
• Loss of smooth belt rotation in the valve train

Installation Notes

Install during timing belt service and verify pulley alignment, belt routing, and tensioner condition before reassembly. Confirm the vehicle application by year, make, and model before ordering the INA ZT-9-5259.

Quality Assurance

INA supplies timing drive components for repair-focused engine service solutions, with an emphasis on reliable operation and low maintenance requirements.