This is a Genuine Nissan timing chain guide, specifically for the slack side of the crankshaft. It is designed for the YD25DDTI engine found in early model Nissan Navara D40 and Pathfinder R51 vehicles. Located inside the engine's timing case, this guide is responsible for managing slack in the primary timing chain, ensuring it runs smoothly and maintains correct tension for precise engine timing.
As a critical wear item, this guide can become brittle, wear down, or break over time due to heat and constant use. A common sign of a failing guide is a distinct rattling noise from the front of the engine, which is often most noticeable upon startup. Replacing a worn guide is essential preventative maintenance to avoid significant engine damage.
Replacement of this timing chain guide is an advanced workshop job requiring significant engine disassembly to access the timing components. This includes the removal of the front timing cover and other related parts. It is highly recommended to replace the entire timing chain kit at the same time, which includes the chains, tensioners, and other guides. You may also require new gaskets and seals for the timing cover to complete the job properly.
At Patrolapart we sell a complete kit with all the necessary parts to do this job as recommended -
Thai D40 - TIMINGD40TYD
Spanish D40 After 2010 - TIMINGD40M2
Spanish D40 Before 2010 - TIMINGD40M
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
Choosing genuine Nissan parts ensures the quality and fit for your Nissan. Unlike some aftermarket alternatives, genuine Nissan parts are manufactured to exacting standards, using materials specifically designed to withstand the rigors of Australian conditions. Guaranteeing performance, service life, and reliability.