The Oil Seal Crankshaft Rear for Isuzu 6HE1 / 4HE1 Engine is a precision-engineered sealing component designed to prevent oil leakage from the rear end of the crankshaft.
Built with high-temperature-resistant rubber and reinforced sealing lips, this rear main oil seal provides an airtight fit between the crankshaft and engine block, ensuring long-term durability and oil containment even under high rotational pressure.
A faulty crankshaft oil seal can lead to significant oil loss, engine contamination, and clutch damage. Replacing it with a genuine OEM-grade seal restores proper engine sealing and extends engine life.
Perfectly compatible with Isuzu NPR, FSR, and FVR trucks powered by 6HE1 and 4HE1 diesel engines, this seal guarantees precision fit, high elasticity, and maximum resistance to wear and oil degradation.
🔧 Technical Specifications
-
Part Type: Rear Crankshaft Oil Seal
-
Engine Models: Isuzu 6HE1 / 4HE1
-
Vehicle Applications: Isuzu NPR, FSR, FVR Series
-
Material: Nitrile / Fluoro Rubber (High-Temp Resistant)
-
Fit Type: OEM Replacement
-
Position: Rear (flywheel side)
-
Condition: Brand New
-
Temperature Range: -40°C to 250°C
-
Oil Resistance: Excellent
💪 Key Features
-
✅ OEM-quality rear crankshaft oil seal
-
✅ Prevents oil leaks and maintains crankcase pressure
-
✅ Resistant to heat, oil, and high-speed rotation
-
✅ Precision-molded sealing lips ensure tight fit
-
✅ Long-lasting, maintenance-free performance
⚙️ Benefits
-
Prevents rear main oil leaks
-
Protects flywheel and clutch assembly
-
Reduces oil consumption and contamination
-
Maintains optimal crankshaft lubrication
-
Ensures long-term engine reliability
🚚 Compatible Vehicles
-
Isuzu NPR / NQR / FSR / FVR Diesel Trucks
-
Engines: 6HE1, 4HE1
-
Model Years: 1998–2014
Frequently Asked Questions (FAQ)
What is the function of a rear crankshaft oil seal?
The rear crankshaft oil seal prevents oil from leaking out of the engine at the crankshaft’s rear end near the flywheel or transmission.
Which engines is this seal compatible with?
This oil seal is designed for Isuzu 6HE1 and 4HE1 diesel engines used in NPR, FSR, and FVR trucks.
Is this oil seal an OEM-quality replacement?
Yes, it meets OEM specifications for material, durability, and sealing performance.
What material is used in this seal?
It’s made from high-temperature-resistant nitrile or fluoro rubber that ensures tight sealing and long service life.
What are the symptoms of a failing rear oil seal?
Common signs include oil leaks near the flywheel housing, oil drops on the clutch, or oil stains under the engine.
Can I install this seal without removing the engine?
It’s recommended to access the rear seal during clutch or transmission removal for proper installation.
Do I need to use sealant when installing the oil seal?
No, only lubricate with engine oil before fitting. Additional sealants may affect sealing performance.
Oil Seal Crankshaft Rear | Isuzu 6HE1 / 4HE1 ENGINE
OE Replacement: Not Available
Fits Following: NRR NQR NPR NPR-HD 4HE1 / 6HE1
Year: Provide vin# or serial number for Year Information
