Pulley Tensioner. Tensioner Belt.
An oil pressurized tensioner that keeps the chain that runs from the crankshaft to camshaft or the chain that runs from camshaft to camshaft, from becoming loose and jumping a tooth or more causing engine damage or out of sync crankshaft to camshaft timing.

• Helps keep your engine operating as it should
• Ensures the timing chain receives the proper amount of tension
• Replace when worn out or damaged

Your INFINITI's timing chain ensures that the engine valves open and close at the correct intervals. The timing chain must have the right amount of tension to keep the rotation of the camshaft and crankshaft in sync and the valves of the engine closing and opening at the proper intervals. The Engine Timing Chain Tensioner ensures that the timing chain receives the proper amount of tension to keep your engine operating as it should.

Over time, your INFINITI's timing chain can stretch. The Engine Timing Chain Tensioner helps keep the timing chain in the right place and under the right amount of pressure, regardless of any stretching that may occur. If your vehicle's Engine Timing Chain Tensioner is damaged or old, the timing chain could lose tension and fall out of place. A timing chain that falls out of place while driving could break, causing more severe damage. If the timing chain isn't functioning, the valves and pistons can collide, and your INFINITI's engine will be unable to run.

If your Engine Timing Chain Tensioner needs to be replaced, you may notice a rattling sound coming from under the hood. A metal-on-metal sounding rattle could signify that your timing chain has lost tension and might be worn out. In time, a timing chain that has become loose may lead to other troubles, like an oil leak.

If you suspect your INFINITI's Engine Timing Chain Tensioner is damaged or failing, it's important to have a professional INFINITI technician inspect and repair or replace the tensioner, as the timing chain is typically difficult to access.

If your Engine Timing Chain Tensioner needs to be replaced, purchase a new replacement tensioner from genuine INFINITI Parts. Get help with professional installation at your nearest authorized INFINITI service center.

This Engine Timing Chain Tensioner fits your INFINITI EX35, INFINITI EX37, INFINITI FX35, INFINITI FX37, INFINITI G25, INFINITI G35, INFINITI G37, INFINITI G37X, INFINITI I30, INFINITI JX35, INFINITI M35, INFINITI M37, INFINITI M45, INFINITI M56, INFINITI Q40, INFINITI Q50, INFINITI Q60, INFINITI Q70, INFINITI QX60, or INFINITI QX70. See the What This Fits tab for more details.