BZ6303E Original Crankshaft Rear Oil Seal for Excavator Accessories 4HK1 6HK1

Keywords: BZ6303E crankshaft rear oil seal, 4HK1 6HK1 crankshaft oil seal, Isuzu engine rear main seal, excavator engine crankshaft seal, construction machinery engine spare parts, aftermarket replacement crankshaft rear oil seal

🔹Product Overview

Crankshaft Rear Oil Seal Part No.BZ6303E is critical engine sealing component, specially compatible with Isuzu 4HK1 and 6HK1 engines widely fitted on excavators. It is installed at rear end of crankshaft, preventing engine lubricating oil leaking from crankshaft‑flywheel joint, meanwhile blocking dust, dirt and external impurities from entering engine interior. This replacement oil seal solves typical faults including crankshaft rear oil leakage, oil contamination, flywheel housing oil accumulation caused by seal aging, cracking, abrasion and elasticity failure. Every oil seal is inspected for dimension, material property and sealing performance before delivery.

🔹Detailed Specifications

🔹Key Features & Advantages

• Accurate dimension, perfect fit for 4HK1 & 6HK1 crankshaft rear installation position, direct replacement.
• High‑quality rubber material, excellent oil‑resistance, heat‑resistance and anti‑aging performance.
• Stable lip tension, maintain reliable sealing effect under high‑temperature and high‑speed working condition.
• Effectively stop rear crankshaft oil leak, reduce engine oil consumption, protect normal engine lubrication system.
• Suitable for heavy‑load and harsh construction site operating environment.

🔹Application Scope

Fit Equipment: Various excavators powered by Isuzu 4HK1 and 6HK1 diesel engine. ‑ Widely used for machinery repair workshops, equipment refurbishment and engine overhaul projects.

🔹Our Company Advantage

• We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits.
• Large ready stock for various machinery spare parts
• Factory‑direct wholesale competitive price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

🔹Packaging & Shipping

• Neutral export carton with shock‑proof inner packing, prevent collision damage during long‑distance transportation
• Multiple shipping options: sea freight, air freight, international express for small trial orders
• Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.