2144142010 Hyundai / KIA CASE-OIL SEAL RR, Price: 9.47$, Weight: 0.2kg

Rear Oil Seal Case – Stop Leaks, Save Your Gearbox ️

This rear case oil seal is a small but critical barrier that keeps transmission/transfer case oil exactly where it belongs. It’s needed to prevent lubricant loss at the rotating output area, where a shaft spins while the housing stays still. Without a healthy seal, oil escapes fast, and the whole drivetrain starts to suffer.

How It Works ⚙️

The seal uses a precision lip (often spring-loaded) that rides on the shaft surface. As the shaft turns, the lip maintains steady contact, holding back hot oil while also blocking dust and water from entering. Good sealing means stable oil level, cooler operation, and smoother shifting.

What Happens If It’s Broken ❗

A worn or torn seal causes wet oil traces around the case, drops on the ground, and a burning smell when oil hits the exhaust. If ignored, low oil leads to noisy bearings, rough engagement, overheating, and in worst cases, gearbox/transfer damage and costly rebuilds.

Common Symptoms to Watch

• Oil leak from rear case area
• Whine/hum that rises with speed
• Vibration from contaminated joints
• Hard shifting due to poor lubrication

Compatibility ✅

• Libero
• Starex
• Porter II
• H-1
• H-100
• H100 (Truck-Malaysia)
• Terracan
• Grand Starex