
Product Overview
This high-precision Rocker Arm Seat is engineered for Doosan DB58 diesel engines, serving as a critical component in the valve train assembly. We supply this part globally to major industrial and automotive markets, ensuring reliable performance for heavy machinery and commercial vehicles. Manufactured to strict specifications, it is an essential replacement part for maintaining engine efficiency and longevity.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM dimensions (OEM Size) for a perfect fit and seamless installation, ensuring optimal valve timing and engine performance.
- Enhanced Durability: Constructed from high-grade materials to withstand the high-stress environment of a diesel engine’s valve train, offering excellent resistance to wear and fatigue.
- Guaranteed Performance: Direct replacement part designed to restore original engine compression, power output, and fuel efficiency in Doosan DB58 engines.
- Rigorous Quality Control: Each part undergoes thorough inspection, supported by a machinery test report and video outgoing-inspection to guarantee quality before shipment.
- Cost-Effective Solution: Provides a reliable, high-quality alternative at a competitive price point, reducing downtime and maintenance costs for your fleet or machinery.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Rocker Arm Seat |
| Compatible Engine Model | Doosan DB58 |
| Engine Type | Diesel |
| Dimensions | OEM Standard Size |
| Weight | Approximately 1 kg |
| Warranty | 6 Months |
| Quality Documentation | Machinery Test Report & Video Outgoing-Inspection Provided |
| Place of Origin | Guangdong / Guizhou, China |
| Selling Unit | Single Item |
OEM Cross-Reference
This component is manufactured as a direct replacement for the original Doosan part. For precise cross-referencing, please consult your engine’s service manual or contact our technical support with your existing part number. We recommend verifying the physical dimensions against your failed component prior to purchase to ensure compatibility.
Compatibility
This rocker arm seat is specifically designed for the Doosan DB58 diesel engine.
Primary Vehicle & Machinery Applications Include:
- Excavators
- Trucks
- Forklifts
- Bulldozers
- Buses
- Loaders
- Other industrial equipment powered by the Doosan DB58 engine.
Global Supply & Distribution
We are a professional exporter of heavy-duty engine components with extensive experience in international B2B trade. Our logistics network ensures efficient worldwide shipping to all major markets.
- Major Markets Served: North America, European Union, Asia-Pacific (including Australia and Southeast Asia), Middle East, Africa, and South America.
- Efficient Logistics: We ship via air and sea freight to major global ports and industrial hubs, offering reliable door-to-door delivery solutions with full export documentation.
- Trade Compliance: All shipments comply with international export regulations and come with complete commercial invoices, packing lists, and certificates as required.
Quality Assurance
Our commitment to quality is integral to our manufacturing process.
- Manufacturing Standards: Produced in ISO-certified facilities using precision machining and strict quality control protocols.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for our B2B clients.
- Testing & Inspection: Every batch undergoes dimensional checks, material verification, and functional validation. A machinery test report and video evidence of the outgoing inspection are available to confirm product integrity before dispatch.
FAQ
Q1: How can I be sure this rocker arm seat will fit my Doosan DB58 engine?
A1: This part is manufactured to the exact OEM specifications and dimensions. We recommend comparing the physical specifications and bolt pattern with your original part. For absolute certainty, please provide the part number from your engine’s service manual or the old component, and our technical team can verify compatibility.
Q2: What is included in the quality documentation mentioned?
A2: With your shipment, you can request a machinery test report detailing the material properties and dimensional accuracy. We also provide a video outgoing-inspection, which is a visual record of the final quality check before packaging, ensuring you receive a part that meets our stated standards.
Q3: Do you offer technical support for installation?
A3> While we provide the high-quality component, installation should be performed by a qualified mechanic familiar with diesel engine valve train systems. We recommend referring to the official Doosan DB58 engine service manual for the correct torque specifications, valve clearance settings, and installation procedures to ensure optimal performance and avoid engine damage.
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 .