S6B Crankshaft Oil Seal 04865-18021 36211-01800 for Mitsubishi Diesel Engine Parts

Product Details

Product Overview

This heavy-duty Crankshaft Oil Seal, referenced as 04865-18021 and 36211-01800, is a critical sealing component specifically designed for the Mitsubishi S6B diesel engine. As a high-wear item in engine overhaul and maintenance, this oil seal ensures a leak-free barrier between the rotating crankshaft and the engine block, preventing oil loss and contamination.

Manufactured to OEM size specifications, this part is commonly used in a wide range of industrial applications where the Mitsubishi S6B engine platform is deployed, including construction machinery, agricultural tractors, generator sets, marine propulsion, and material handling equipment. It serves as a direct replacement for the original Mitsubishi part, ensuring a precise fit and reliable performance during engine rebuilds or repairs.

Key Features & Benefits

• Precision Fitment: Manufactured to OEM dimensional standards (04865-18021 / 36211-01800) to guarantee a perfect seal on the S6B crankshaft, eliminating installation guesswork.
• Durable Material Composition: Constructed from high-grade rubber and steel composite materials to withstand high rotational speeds, heat, and pressure found in diesel engine environments.
• Leak-Proof Design: Features a precision-molded sealing lip that provides excellent resistance to oil degradation and prevents external leakage, extending engine life.
• Rigorous Quality Control: Each seal undergoes inspection and a machinery test report is provided, ensuring the part meets strict performance criteria before shipment.
• Cost-Effective Solution: Offers a reliable aftermarket alternative to genuine parts without compromising on fit or function, reducing overall maintenance costs for fleet operators.
• Versatile Application: Suitable for various industrial sectors including construction, agriculture, marine, and power generation, making it a versatile stock item for workshops.

Technical Specifications

OEM Cross-Reference

This product is designed to directly replace the following original equipment manufacturer (OEM) part numbers. Please verify your existing part number for compatibility.

• Mitsubishi: 04865-18021
• Alternative Number: 36211-01800

Note: If your part number is not listed, please contact us with your engine serial number for cross-reference assistance.

Compatibility

This crankshaft oil seal is specifically designed for the Mitsubishi S6B diesel engine platform. It is commonly used for the following applications:

• Construction Machinery: Excavators, Bulldozers, Wheel Loaders
• Agricultural Equipment: Tractors, Harvesters
• Industrial: Generator Sets (Gensets), Compressors
• Marine: Auxiliary engines and propulsion systems
• Material Handling: Forklifts, Cranes

Fitment is inferred based on the engine model S6B. Always verify the exact seal dimensions (inner diameter, outer diameter, width) against your original part before installation.

Global Supply & Distribution

We maintain a robust global supply chain to deliver this S6B crankshaft oil seal to B2B buyers worldwide. Our logistics network supports fast and reliable shipping to major industrial hubs.

• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, South Korea, Australia, Singapore), Middle East (UAE, Saudi Arabia), South America (Brazil, Chile), and Africa.
• Shipping Options: Express (DHL, FedEx, UPS) for urgent orders, Air Freight for medium volumes, and Sea Freight (FCL/LCL) for bulk container shipments to major ports like Rotterdam, Shanghai, Los Angeles, and Hamburg.
• Trade Compliance: Experienced in international export documentation, customs clearance, and trade terms (FOB, CIF, EXW). We ensure proper packaging to prevent damage during transit.

Quality Assurance

We prioritize quality to ensure your engine rebuild is successful. Every batch is tested to meet industry standards.

• Inspection: Video outgoing inspection is provided upon request to verify product condition before shipping.
• Testing: A Machinery Test Report is available, confirming the seal’s dimensional accuracy and material integrity.
• Warranty: This product is backed by a 6-month warranty against manufacturing defects in material and workmanship.
• Certification: Parts are manufactured in ISO-certified facilities, ensuring consistent quality control from raw material to finished product.

FAQ

Q: How do I confirm this oil seal fits my specific S6B engine?
A: While this seal is designed for the S6B series, we recommend measuring the old seal’s inner diameter (shaft size), outer diameter (housing bore size), and width. Compare these dimensions to the OEM part numbers (04865-18021 or 36211-01800). If you have the engine serial number, we can cross-reference it for you.

Q: Is this a front or rear crankshaft seal?
A: The specific position (front or rear) depends on the exact engine variant. The part number 04865-18021 is commonly used for the rear crankshaft seal on many S6B models, but we advise checking your service manual or the original seal location. If in doubt, contact us with your engine details.

Q: What is the recommended installation procedure?
A: Ensure the crankshaft surface is clean and free of burrs. Lubricate the seal lip with clean engine oil before installation. Use a seal driver tool that matches the outer diameter to press the seal evenly into the housing bore. Do not hammer directly on the seal body, as this can distort the metal case and cause leakage.