Product Overview

This high-performance crankshaft oil seal from Saimimi Tianfeng is engineered to provide a critical, leak-proof barrier between the crankshaft and engine block. Designed for durability and reliability, it is a direct replacement for original equipment parts, ensuring optimal engine performance and protection against oil contamination. We specialize in global B2B supply, serving major markets across North America, Europe, Asia-Pacific, and the Middle East with efficient logistics and export compliance.

Key Features & Benefits

• Premium Material Construction: Manufactured from high-grade, heat-resistant rubber compounds to withstand extreme engine temperatures and pressures without degrading.
• Precision Engineering: Exact dimensional specifications (79x114x13mm) ensure a perfect, secure fit for a reliable seal and easy installation.
• Enhanced Durability: Resists hardening, cracking, and wear from constant exposure to engine oil and rotational friction, extending service life.
• Optimal Sealing Performance: Prevents oil leaks effectively, maintaining proper oil pressure and protecting engine components from damage and contamination.
• Cost-Effective Solution: Offers OEM-level quality and performance at a competitive price, ideal for engine rebuilds, repairs, and wholesale distribution.

Technical Specifications

OEM Cross-Reference

This part is designed as a direct interchange for the following OEM and aftermarket numbers:

• SZ311-01045 (Primary Reference)
• BZ4820E
• Please contact our sales team with your specific engine model for a comprehensive cross-reference check against other global OEM standards.

Compatibility

This crankshaft oil seal is designed for specific heavy-duty diesel and industrial engines. It is crucial to verify the engine model and existing seal part number before purchase. Commonly associated with certain series of engines requiring a 79x114x13mm seal. Consult your engine service manual or our technical team for precise application.

Global Supply & Distribution

We are a professional exporter of automotive engine components with extensive experience in international logistics and trade documentation. Our supply chain is optimized for fast, reliable delivery to key industrial hubs and ports worldwide.

• Major Markets Served: North America (USA, Canada, Mexico), European Union (Germany, UK, Poland), Asia-Pacific (Australia, Japan, Southeast Asia), Middle East (UAE, Saudi Arabia), South America.
• Shipping: We support FOB, CIF, and EXW terms. Shipments are efficiently routed via air or sea freight to major ports like Los Angeles, Rotterdam, Hamburg, Singapore, and Dubai.
• Compliance: All exports are handled in full compliance with international trade regulations and customs requirements.

Quality Assurance

Every Saimimi Tianfeng oil seal is produced under strict quality control protocols to meet or exceed original equipment specifications.

• Manufacturing Standards: Production follows ISO 9001 quality management principles.
• Rigorous Testing: Each batch undergoes dimensional accuracy checks, material durability tests, and pressure/leak simulation tests to ensure performance integrity.
• Warranty: Backed by a standard warranty against manufacturing defects. Specific warranty terms are provided with your commercial invoice.

FAQ

Q: How do I confirm this oil seal will fit my engine?
A: The most reliable method is to match the part numbers. Check your old seal for the stamped number (e.g., SZ311-01045 or BZ4820E) and verify the physical dimensions (79x114x13mm). Providing your engine model, serial number, and equipment make to our team will allow us to confirm compatibility.

Q: What is the proper installation procedure for this crankshaft seal?
A: Proper installation is critical. The crankshaft journal and seal housing must be clean, smooth, and free of burrs. Lubricate the seal lip with clean engine oil before installation. Use a proper seal driver tool to install it squarely and to the correct depth to avoid damage to the sealing lip. Never hammer directly on the seal.

Q: Do you offer mixed container loads or consolidated shipments for B2B buyers?
A: Yes. We cater specifically to wholesale and distribution clients. We can consolidate various engine parts into a single container (LCL or FCL) to optimize shipping costs and supply chain efficiency. Contact our sales department to discuss your specific volume and logistics requirements.

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 .