PISTON,W/PIN

Engine Piston with Wrist Pin ?

This internal engine component is vital for turning combustion pressure into usable power. It moves up and down inside the cylinder, sealing with piston rings and transferring force through the wrist pin to the connecting rod. That motion is what finally spins the crankshaft and drives the vehicle forward ?.

Why this part is needed

A healthy piston keeps compression strong, controls oil on the cylinder wall, and helps the engine run smooth under load. The wrist pin must fit precisely so the piston can pivot without side-load damage.

How it works

On the power stroke, expanding gases push the piston downward. The wrist pin acts like a hinge, letting the connecting rod follow the crank’s rotation while keeping the piston aligned in the bore. Proper clearances prevent scuffing, slap noise, and overheating.

What happens if it’s broken

Cracked skirts, seized pin bores, or worn pin surfaces can cause low compression, heavy oil consumption, misfires, knocking, metal debris, and in severe cases total engine failure ?. Continued driving may damage the cylinder, rod, and crank journals.

Compatible Models ✅

• Cabstar
• Terra
• Navara Np300
• Pathfinder
• Navara
• Np300 Navara
• Nv350 Urvan
• Np300 Frontier
• Nv350 Caravan
• Frontier
• Murano