167515KA0A Nissan SPROCKET, Price: 40.84$, Weight: 0.746kg

Fuel Pump Drive Sprocket for Nissan Diesel Platforms ⚙️

This precision gear keeps your high-pressure fuel pump perfectly synchronized with the engine via the timing chain. It’s essential for stable rail pressure, clean combustion, and strong torque. When the drive gear and chain work together, injection events happen at the exact crank angle—no drift, no delay, just dependable delivery every start and every pull.

Why you need it ⛓️

Over time, teeth can wear or chip, causing timing noise, rough idle, hard starting, weak acceleration, and increased fuel use. Left unchecked, wear can lead to chain slap, phase misalignment, metal debris, and in extreme cases chain jump—risking serious engine damage.

How it works

Hardened steel teeth mesh with the timing chain, driving the pump shaft at a fixed ratio to crank rotation. Tight tolerances and correct tooth profile maintain quiet operation and precise injection timing under load and heat.

When to replace ?

• Rattle from timing cover, especially on cold start
• Hooked or pitted teeth; rust or play on the hub
• Low rail pressure faults; difficult hot or cold starts
• During timing chain service as preventive maintenance

Installation notes

• Lock crank at TDC, align timing marks
• Use new fastener, torque to spec; verify chain elongation
• Prime fuel system and clear codes after assembly

Compatibility

• Np300 Navara
• Navara Np300
• Terra