8-98334339-0 8983343390 Rear Crankshaft Oil Seal for Isuzu 6HK1 Diesel Engine Excavator Spare Parts

The 8-98334339-0 Rear Crankshaft Oil Seal is a replacement diesel engine sealing component designed for compatible Isuzu 6HK1 diesel engine applications.

Also known as a Rear Main Oil Seal, Engine Rear Oil Seal, Crankshaft Rear Seal, or Diesel Engine Crankshaft Oil Seal, this component is designed to help prevent engine lubricating oil from leaking around the rear section of the crankshaft.

The rear crankshaft oil seal is an important component of the engine lubrication and sealing system. It forms a sealing interface between the rotating crankshaft and the stationary engine housing.

A properly installed and correctly matched rear crankshaft oil seal helps maintain engine oil containment, reduces the risk of oil leakage, and supports reliable diesel engine operation.

The 8-98334339-0 oil seal features a circular sealing structure with black and gray sections, concentric sealing surfaces, and a compact annular design.

Its construction is intended for installation at the rear crankshaft sealing location of compatible Isuzu 6HK1 engines.

JISION supplies crankshaft oil seals, engine gaskets, O-rings, diesel engine bearings, and construction machinery engine replacement components to equipment owners, engine repair workshops, construction contractors, and international spare parts distributors.

Product Specifications

Key Features

1. Rear Crankshaft Oil Sealing

Designed to help prevent engine lubricating oil from escaping through the rear crankshaft sealing area.

2. Engine Oil Leakage Prevention

A properly installed rear main seal helps maintain oil containment and reduce leakage around the crankshaft rear housing.

3. Circular Sealing Structure

Features an annular sealing design intended for installation around the corresponding crankshaft sealing surface.

4. Concentric Seal Configuration

The pictured component includes concentric sealing sections intended to work with the matching crankshaft and housing arrangement.

5. Diesel Engine Application

Offered for compatible Isuzu 6HK1 diesel engine configurations used in commercial vehicles and construction machinery applications.

6. Engine Lubrication System Protection

Helps maintain the separation between the lubricated crankcase and the external environment at the rear crankshaft interface.

7. Engine Repair and Overhaul Application

Suitable for replacement during compatible diesel engine rebuilding, rear crankshaft sealing repairs, and engine overhaul.

8. Replacement Engine Sealing Component

Offered as a replacement option for applications requiring reference number 8-98334339-0, subject to dimensional and engine compatibility verification.

Compatible Engine and Equipment Applications

Reference Engine Model:

• Isuzu 6HK1 Diesel Engine

Reference Equipment Applications:

• Construction Machinery with Compatible 6HK1 Engines

• Commercial Vehicles Equipped with 6HK1 Engines

• Heavy-Duty Diesel Engine Applications

• Engine Repair and Rebuilding Applications

Reference Part Numbers:

• 8-98334339-0

• 8983343390

Additional Historical Reference Numbers:

• 8-97602379-0 / 8976023790

• 8-94370637-0 / 8943706370

Important Compatibility Notice

Compatibility may vary depending on engine serial number, crankshaft dimensions, oil seal material, sealing lip design, and engine rear housing specifications.

The listed reference numbers should be checked against the original equipment parts catalog before ordering.

Please verify the original rear crankshaft oil seal number and engine serial number to ensure accurate product selection.

Product Applications

The 8-98334339-0 rear crankshaft oil seal is offered for compatible applications involving:

• Isuzu 6HK1 Engine Rear Crankshaft Sealing

• Diesel Engine Rear Main Seal Replacement

• Engine Oil Leakage Repair

• Diesel Engine Overhaul

• Heavy Equipment Engine Maintenance

• Crankshaft Rear Housing Sealing

• Construction Machinery Engine Repair

• Commercial Vehicle Diesel Engine Servicing

Installation and Maintenance Recommendations

Correct crankshaft oil seal installation is essential for reliable sealing performance and preventing premature leakage.

Before installation:

1. Verify the original oil seal part number and engine serial number.

2. Confirm the seal dimensions and installation position.

3. Inspect the crankshaft sealing surface for scratches, grooves, or excessive wear.

4. Clean the rear oil seal housing and mating surfaces.

5. Confirm the correct installation orientation of the oil seal.

6. Follow the manufacturer's instructions regarding whether the sealing lip should be installed dry or lubricated.

7. Use the appropriate seal installation tool to prevent distortion or damage.

8. Install the seal to the specified depth and alignment.

9. Inspect the rear crankshaft housing and related sealing surfaces.

10. Check for oil leakage after engine reassembly and operation.

Important: Some crankshaft oil seal designs use special sealing materials or require specific installation procedures. Always follow the engine manufacturer's instructions.

Installation and servicing should be performed by qualified diesel engine technicians.

Why Choose JISION?

Professional Construction Machinery Parts Supplier

JISION supplies replacement diesel engine components, hydraulic spare parts, and electrical components for excavators and heavy construction machinery.

Wide Range of Engine Sealing Parts

Our product range includes crankshaft oil seals, valve stem seals, engine gasket sets, O-rings, cylinder head gaskets, oil pan gaskets, engine bearings, and other diesel engine replacement components.

International Parts Supply

We support machinery owners, diesel engine repair workshops, construction contractors, and international spare parts distributors with product sourcing inquiries.

Part Number Identification Assistance

Customers can provide original oil seal part numbers, engine models, engine serial numbers, and product photos to help identify suitable replacement components.

Wholesale Inquiries Welcome

Contact JISION for product quotations, bulk purchasing, availability, and international shipping arrangements.

Ordering Information

Product Name: Rear Crankshaft Oil Seal

Main Part Number: 8-98334339-0

Alternative Number: 8983343390

Reference Engine Model: Isuzu 6HK1

Installation Position: Rear Crankshaft

Application: Diesel Engine Lubrication and Sealing System

To help ensure accurate product selection, please provide:

• Engine Brand and Model

• Engine Serial Number

• Original Oil Seal Part Number

• Oil Seal Inner Diameter

• Oil Seal Outer Diameter

• Oil Seal Width

• Original Seal Material or Specification

• Photos of the Existing Oil Seal

• Required Purchase Quantity

Contact JISION for product specifications, pricing, stock availability, wholesale purchasing, and international shipping information.

JISION – Reliable Engine Oil Seals and Diesel Engine Replacement Parts for Heavy Construction Machinery.