Product Overview

This BZ5941E Crankshaft Rear Oil Seal is a precision-engineered replacement component designed for Mitsubishi 6D40 series diesel engines. As a leading supplier from Guangdong, China, we specialize in the global distribution of high-quality engine parts, serving major industrial markets in North America, Europe, the Middle East, and the Asia-Pacific region. This seal is critical for preventing oil leaks and maintaining optimal engine pressure in demanding applications.

Key Features & Benefits

• Premium Material Construction: Manufactured from high-grade, heat-resistant rubber and reinforced materials to ensure longevity and reliable sealing under extreme engine temperatures and pressures.
• Precision OEM Fit: Engineered to exact OEM dimensions (OEM Size) for a perfect, hassle-free installation without modifications, ensuring optimal performance and preventing leaks.
• Enhanced Durability: Specifically designed for the rigorous demands of diesel engines, offering superior resistance to oil degradation, wear, and thermal stress for extended service life.
• Versatile Application: A vital component for maintaining engine integrity across multiple sectors, including construction, power generation, marine, and agricultural machinery.
• Quality Assured: Backed by a 6-month warranty and supported by comprehensive machinery test reports and video outgoing-inspection documentation.

Technical Specifications

OEM Cross-Reference

This part serves as a direct replacement for the OEM specification seal used in Mitsubishi 6D40 engines. The primary part number is BZ5941E. For confirmation of alternative or previous part numbers, please consult your engine’s service manual or contact our technical support team with your specific engine serial number.

Compatibility

This crankshaft rear oil seal is specifically designed for and compatible with Mitsubishi 6D40 diesel engines. These engines are commonly found in a wide range of heavy-duty equipment, including:

• Construction Machinery: Excavators, wheel loaders, bulldozers.
• Industrial & Genset Applications: Power generators, industrial pumps, compressors.
• Marine Propulsion: Auxiliary and main marine engines.
• Agricultural Equipment: Tractors and heavy farming machinery.
• Material Handling: Large forklifts and port equipment.

Always verify the engine model and part number before purchase to ensure correct fitment.

Global Supply & Distribution

We are a professional B2B exporter with extensive experience in international logistics and trade compliance. We guarantee efficient worldwide shipping to all major industrial hubs.

• Primary Markets Served: North America (USA, Canada), European Union, United Kingdom, Australia, Southeast Asia, Middle East, and Africa.
• Efficient Logistics: We facilitate fast delivery to major global ports including Los Angeles, Rotterdam, Singapore, Dubai, and Sydney. We work with reputable freight forwarders to ensure timely and secure delivery for both small and bulk orders.
• Export Ready: All documentation (commercial invoice, packing list, certificate of origin) is provided professionally to ensure smooth customs clearance worldwide.

Quality Assurance

Our commitment to quality ensures you receive reliable parts that meet performance expectations.

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and strict quality control protocols.
• Comprehensive Testing: Each batch undergoes rigorous machinery testing. Video outgoing-inspection is available to provide transparency and confirm part condition before shipment.
• Warranty & Support: Protected by a 6-month warranty from the date of delivery. Our dedicated team provides online technical support for after-warranty service, installation guidance, and compatibility inquiries.

FAQ

Q1: How can I be sure this seal will fit my specific Mitsubishi 6D40 engine?
A: The BZ5941E is manufactured to the exact OEM specifications for the 6D40 engine. For absolute certainty, we recommend cross-referencing the part number stamped on your old seal or consulting your engine’s official parts catalog. Providing your engine’s serial number to our support team can also help confirm compatibility.

Q2: What are the critical steps for installing this rear main oil seal to prevent leaks?
A: Proper installation is key. Ensure the crankshaft sealing surface and the engine block housing are meticulously clean, dry, and free of nicks or old seal material. Lubricate the seal’s inner lip with clean engine oil before installation. Use the correct installation tool to press the seal in evenly and squarely to avoid cocking or damaging the sealing lip.

Q3: Do you offer support for large-volume orders for fleet or dealership needs?
A: Absolutely. We specialize in supplying B2B clients, including equipment dealers, repair workshops, and fleet maintenance departments. We offer competitive pricing for bulk orders, consolidated shipping, and customized documentation. Contact our sales team directly to discuss your volume requirements and logistics preferences.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .