The Front Crankshaft Oil Seal for Isuzu 4HK1 Engine is a precision-engineered sealing component that prevents oil leaks from the front end of the crankshaft. Built to OEM specifications, this seal ensures a perfect fit and long-lasting durability.
Manufactured using high-grade rubber and reinforced metal construction, it can withstand extreme engine heat, oil pressure, and friction. The seal’s design minimizes oil seepage and contamination, keeping the crankshaft area clean and efficient.
Ideal for Isuzu NPR, NQR, and NRR trucks equipped with 4HK1 diesel engines, this front oil seal is an essential part of maintaining proper lubrication and engine reliability.
Whether you’re performing a full engine rebuild or replacing a worn-out seal, this component ensures leak-free operation and long service life.
🔧 Key Features:
-
✅ OEM-spec front oil seal for Isuzu 4HK1 engine
-
✅ Prevents oil leakage from the crankshaft front housing
-
✅ Made from high-quality, heat-resistant rubber material
-
✅ Reinforced metal construction for added strength
-
✅ Provides a tight and reliable seal under pressure
-
✅ Reduces wear and extends engine life
-
✅ Direct-fit replacement – easy installation
⚙️ Compatible Applications:
-
Engine Model: Isuzu 4HK1
-
Vehicle Models: Isuzu NPR, NQR, NRR, and related diesel trucks
-
Fitment Type: OEM-spec direct replacement
-
Function: Front crankshaft oil sealing to prevent leakage and maintain pressure
🌟 Benefits:
-
Prevents oil leaks and maintains clean engine operation
-
Ensures proper lubrication within the crankshaft area
-
Extends the lifespan of crankshaft bearings
-
Improves overall engine performance and reliability
-
Ideal for heavy-duty commercial use
FREQUENTLY ASKED QUESTIONS (FAQ)
What is the function of the front crankshaft oil seal?
The front crankshaft oil seal prevents engine oil from leaking where the crankshaft exits the front of the engine block, maintaining proper lubrication and oil pressure.
Is this oil seal compatible with all Isuzu 4HK1 engines?
Yes, it’s designed specifically for the Isuzu 4HK1 engine used in NPR, NQR, and NRR trucks.
What materials are used in the oil seal?
The seal is made from high-grade, heat- and oil-resistant rubber with a reinforced metal core for durability and reliability.
How do I know if my crankshaft oil seal is leaking?
Common signs include oil spots under the vehicle, oil residue around the crankshaft pulley, or a burning oil smell during operation.
Front Oil Seal crankshaft | Isuzu 4HK1 Engine
OE Replacement: Not Available
Fits Following: Provide vin# or serial number for Model Information
Year: Provide vin# or serial number for Year Information




