Product Overview

This premium 11Z Main Bearing and Connecting Rod Bearing Set (Part #11701-78300) is engineered for Toyota diesel engines used in demanding industrial and commercial applications. We are a leading supplier with extensive experience in global export, serving major markets across North America, Europe, the Middle East, and Asia-Pacific. Our products are trusted by construction, agricultural, marine, and power generation industries worldwide.

Key Features & Benefits

• Precision Manufacturing: Manufactured to exact OEM specifications and size, ensuring a perfect fit and optimal oil clearance for maximum engine performance and longevity.
• Enhanced Durability: Constructed from high-grade materials designed to withstand the high loads and pressures of industrial diesel operation, reducing wear on crankshaft journals.
• Reliable Performance: Ensures consistent oil film retention for superior lubrication, minimizing friction and preventing premature engine failure.
• Comprehensive Kit: Sold as a complete set for a full engine bearing overhaul, providing convenience and ensuring all components are matched for quality.
• Rigorous Quality Control: Each batch undergoes thorough machinery testing and video-recorded outgoing inspections to guarantee dimensional accuracy and material integrity.

Technical Specifications

OEM Cross-Reference

This bearing set is a direct replacement for the following OEM part number:

• Toyota: 11701-78300

Note: OEM cross-reference is based on manufacturer specifications. Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This bearing set is designed for Toyota 11Z series diesel engines. These engines are commonly found in a wide range of heavy-duty applications, including:

• Construction Machinery: Excavators, bulldozers, loaders.
• Industrial & Agricultural Equipment: Tractors, pumps, compressors.
• Power Generation (Gensets): Standby and prime power generator sets.
• Marine Applications: Auxiliary marine engines.
• Material Handling: Large forklifts and port equipment.

Global Supply & Distribution

We specialize in seamless international B2B logistics. Our established supply chain ensures reliable delivery to key industrial hubs worldwide.

• Worldwide Shipping: We export to all major continents, including North America (USA, Canada, Mexico), Europe (Germany, UK, Poland, Italy), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
• Efficient Logistics: Fast container (FCL/LCL) and air freight options available to major ports and airports. We handle all export documentation, customs clearance, and international trade compliance.
• Bulk & Wholesale Ready: Optimized packing for secure, cost-effective ocean freight. We work directly with distributors, workshops, and large fleet operators.

Quality Assurance

Our commitment to quality ensures you receive reliable, performance-grade components.

• Manufacturing Standards: Produced in ISO-certified facilities using precision machining and advanced metallurgy.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
• Testing & Inspection: Every production lot undergoes a Machinery Test Report (MTR) for material verification. A video outgoing-inspection is provided for key quality checks, including dimensional analysis and visual inspection.

FAQ

Q1: How do I confirm this bearing set fits my specific Toyota 11Z engine?
A1: While designed for the 11Z engine series, critical engine rebuilds require verifying the engine’s serial number and existing bearing sizes (standard or undersize). We recommend consulting your engine’s service manual or contacting our technical support with your engine S/N for precise confirmation before ordering.

Q2: Are these bearings suitable for a high-hour engine rebuild?
A2> Yes. These OEM-size bearings are ideal for engines where the crankshaft journals are within standard specification and have not been machined. If your crankshaft has been reground, you will need corresponding undersize bearings, which may be available through our OEM service.

Q3: What is included in your quality inspection process?
A3> Our inspection includes material certification (MTR), precise measurement of ID/OD and wall thickness, surface finish analysis, and checks for any visual imperfections. The optional video outgoing-inspection provides a recorded audit trail of these checks for your quality records.

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 .