Product Overview

This is a premium replacement Crankshaft Front Oil Seal engineered for Hino J05E and J08E series diesel engines. Designed for durability and precise fitment, this critical sealing component prevents oil leaks and protects the engine’s crankshaft and front timing cover area. We supply this part globally to workshops, fleet operators, and parts distributors in major industrial markets, ensuring reliable performance in demanding commercial vehicle applications.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for a perfect fit and reliable seal on the first installation.
• High-Temperature & Oil Resistant: Constructed from advanced elastomer materials designed to withstand engine heat, oil pressure, and chemical exposure without degrading.
• Prevents Costly Damage: A secure seal prevents oil loss, which can lead to low oil pressure, bearing wear, and catastrophic engine failure.
• Optimized Lip Design: The sealing lip is designed for minimal friction and long-term wear resistance, maintaining integrity over extended service intervals.
• Direct OEM Replacement: Offers a cost-effective alternative to genuine parts without compromising on performance or reliability for Hino trucks.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM numbers:

• Hino: SZ311-79002, SZ31179002

Note: Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This crankshaft front oil seal is compatible with a wide range of Hino trucks and buses equipped with the following engines:

• Engine Family: Hino J05E-TP, J05E-TC, J08E-TP, J08E-TC, and related variants.
• Vehicle Applications: Commonly found in Hino 300 Series, 500 Series, and select 700 Series models, as well as various bus chassis.
• Typical Year Range: Applicable for models produced from the early 2000s onward. Compatibility is engine-specific, not year-specific.

Global Supply & Distribution

We are a trusted supplier in the global automotive aftermarket, specializing in heavy-duty engine components.

• Worldwide Shipping: We export to all major markets, including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Fast Logistics: Efficient dispatch from our warehouses ensures fast delivery to major ports and industrial hubs such as Rotterdam, Los Angeles, Singapore, Dubai, and Sydney.
• Export Expertise: Extensive experience in international B2B trade, with full compliance for customs documentation, HS codes, and regional standards.
• Bulk & Wholesale: Competitive pricing for container loads (FCL) and mixed pallets (LCL) for distributors and large fleet operators.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling to ensure dimensional accuracy and material consistency.
• Rigorous Testing: Each batch undergoes testing for seal integrity, material hardness, lip tension, and resistance to oil and temperature extremes.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.
• Packaging: Individually packaged to prevent damage during transit and storage.

FAQ

Q1: How do I confirm this oil seal fits my specific Hino J08E engine?
A1: The primary fitment is confirmed by the part numbers SZ311-79002 or SZ31179002. For absolute certainty, we recommend cross-referencing this number with your engine’s service manual or providing your engine’s model code and serial number to our technical team for verification.

Q2: What is the critical installation tip for this front crankshaft seal?
A2: The most crucial step is ensuring the sealing surface on the crankshaft is completely clean, smooth, and free of burrs or old seal material. Lightly lubricating the seal lip with clean engine oil is recommended. Use a proper installation sleeve or tool to avoid damaging or cocking the seal during installation.

Q3: Is this a preventative maintenance item, and what are the signs of a failing front crankshaft seal?
A3: Yes, it is often replaced during major engine services like timing gear overhauls. Common failure signs include visible oil leakage from the front timing cover or behind the crankshaft pulley, oil dripping from the bottom bell housing area, and in severe cases, a drop in engine oil level without other apparent leaks.

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 .