Product Overview

This professional-grade Rocker Arm Assembly (Part Number: 5-87813290-2) is engineered for Isuzu 4BD1 and 4BG1 diesel engines. As a leading supplier, we provide direct global shipping to major industrial markets, ensuring reliable parts supply for construction, agriculture, marine, and power generation sectors worldwide. This component is a critical part of the valve train system, designed for durability and precise operation under demanding conditions.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for perfect fitment and reliable performance, ensuring smooth valve operation and optimal engine timing.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-stress environment of diesel engine operation, offering extended service life and reduced maintenance intervals.
• Performance Consistency: Ensures consistent valve lift and timing, contributing to stable engine power output, fuel efficiency, and reduced emissions.
• Comprehensive Compatibility: Direct replacement for the specified Isuzu engine models, eliminating downtime and simplifying the repair process for technicians.
• Rigorous Quality Control: Each assembly undergoes thorough inspection and testing, including video outgoing-inspection, to guarantee it meets strict performance standards before shipment.

Technical Specifications

OEM Cross-Reference

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

• Isuzu: 5-87813290-2

Note: Always verify the part number stamped on your original component for absolute compatibility. OEM service and custom manufacturing are available upon request.

Compatibility

This rocker arm assembly is specifically designed for the following applications:

• Engine Models: Isuzu 4BD1, Isuzu 4BG1 diesel engines.
• Primary Applications: This engine series is commonly found in a wide range of industrial and commercial equipment, including:
  • Construction Machinery (Excavators, Loaders)
  • Industrial & Agricultural Equipment
  • Power Generation Sets (Gensets)
  • Marine Propulsion Systems
  • Material Handling Vehicles

Global Supply & Distribution

We are a trusted partner for B2B clients across the globe, specializing in the export of high-quality engine components. Our logistics network ensures efficient delivery to key industrial regions.

• Worldwide Shipping: We export to all major markets, including North America, Europe, the Asia-Pacific region, the Middle East, Africa, and South America.
• Fast Delivery to Hubs: Consolidated shipments to major ports and logistics centers in Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg ensure timely delivery.
• Export Expertise: Extensive experience in international trade, handling all necessary documentation, customs clearance, and compliance for a seamless supply chain experience.
• Bulk & OEM Supply: Capable of fulfilling large-volume orders for distributors, workshops, and equipment fleet operators.

Quality Assurance

Our commitment to quality ensures you receive a reliable and performance-guaranteed component.

• Manufacturing Standards: Produced in ISO-certified facilities using precision machining and strict quality control protocols.
• Warranty: Backed by a 6-month defects liability period from the date of delivery, covering material and workmanship.
• Testing & Inspection: Every batch is subject to machinery test reports and comprehensive video outgoing-inspection to validate dimensional accuracy, material integrity, and functional performance.
• Traceability: Clear packaging and documentation for easy identification and inventory management.

FAQ

Q: How can I confirm this rocker arm assembly will fit my specific Isuzu 4BD1 engine?
A: The primary identifier is the OEM part number. Please locate the part number stamped on your existing rocker arm assembly. This product directly replaces part number 5-87813290-2. For further confirmation, you can provide your engine’s serial number or the model of the equipment it is installed in.

Q: What is included in the “Rocker Arm Assembly”?
A: The assembly typically includes the rocker arms, shafts, brackets, and necessary bushings or bearings as per the OEM configuration for the 4BD1/4BG1 engine. It is supplied as a complete, ready-to-install unit to restore the valve train geometry correctly.

Q: What are the recommended installation checks after fitting this assembly?
A: After installation, it is crucial to check and adjust the valve clearances to the engine manufacturer’s specified tolerances. Ensure all mounting bolts are torqued to the correct specification. We recommend priming the engine oil system before initial startup to ensure immediate lubrication of the new components.

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 .