7701475009 Renault CRANKSHAFT OIL, Price: 28.88$, Weight: 0.048kg

Engine Crankshaft Oil Seal for Renault ️

This precision crankshaft oil seal keeps engine oil where it belongs and dirt out. Designed for Renault powertrains, it maintains tight sealing at the front timing end or rear main area, protecting bearings, clutch, and timing components. Strong, quiet, and leak-free performance for daily use and long trips.

Why you need it

The seal holds oil pressure around the rotating crank while the engine spins thousands of times per minute. It prevents oil mist from escaping and keeps the lubrication circuit stable. With a healthy seal, you get clean operation, steady oil level, and reduced maintenance.

How it works ️

An elastomer lip with a spring hugs the crank journal. A micro-wear track forms and the lip rides on it, controlling oil film at all speeds. Quality rubber (NBR/FKM) and a steel cage manage heat, vibration, and slight shaft runout. Some versions use PTFE for low friction and long life.

When it fails

Signs include oil drips near pulley or bellhousing, burnt oil smell, clutch slip (rear), oily timing belt (front), low oil level, and mess under the car. Left unchecked, leaks can damage belts, foul the clutch, drop oil pressure, and risk engine wear.

Build & compatibility

OEM-grade materials, temperature resistant, and made to match Renault engine dimensions. Fits applications calling for a front crank seal or rear main seal; check size and engine code for exact match.

Install tips ✅

Inspect the crank surface; polish if grooved. Lightly oil the lip, press square with a proper driver, do not over-insert. Clean breather/PCV to avoid pressure build-up. Torque pulleys to spec and replace contaminated belts.