Product Overview

This premium replacement Camshaft Bushing is engineered for Yanmar 4D84 series diesel engines, a cornerstone of industrial, marine, and generator applications worldwide. Manufactured to exact OEM specifications, this part ensures reliable performance and longevity under demanding conditions. We specialize in the global distribution of high-quality engine components, serving major industrial markets across North America, Europe, the Asia-Pacific region, and the Middle East with efficient logistics and export compliance.

Key Features & Benefits

• Precision Engineering: Manufactured to strict tolerances for a perfect fit and optimal oil clearance, ensuring proper lubrication and reduced wear on the camshaft.
• High-Durability Material: Constructed from high-grade, wear-resistant alloy to withstand continuous operation and high-load cycles typical in Yanmar industrial engines.
• Enhanced Engine Performance: Properly functioning bushings are critical for maintaining precise valve timing, which directly impacts engine efficiency, power output, and fuel economy.
• Reliability & Longevity: Designed to match or exceed the service life of the original component, reducing downtime and maintenance costs for your equipment.
• Direct OEM Replacement: A direct-fit substitute for the original Yanmar part, requiring no modifications for installation.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following original equipment manufacturer number:

• Yanmar: 129001-02903

Note: Always verify the specific engine serial number and configuration for final compatibility confirmation.

Compatibility

This camshaft bushing is specifically designed for use in Yanmar 4D84 series diesel engines. These engines are commonly found in a wide range of heavy-duty applications, including:

• Industrial Machinery: Pumps, compressors, construction equipment.
• Marine Propulsion: Auxiliary engines and main propulsion for smaller vessels.
• Power Generation: Standby and prime power generator sets.

Global Supply & Distribution

We are a trusted partner for B2B clients worldwide, offering seamless international logistics. Our supply chain is optimized for fast delivery to major industrial hubs and ports across continents, including Rotterdam, Singapore, Houston, Dubai, and Shanghai. With extensive experience in export documentation and compliance with international trade regulations, we ensure your order arrives efficiently and correctly, minimizing lead times for your maintenance schedules and inventory needs.

Quality Assurance

Every camshaft bushing undergoes rigorous quality control checks to ensure dimensional accuracy, material integrity, and surface finish. Our manufacturing processes adhere to industry-leading standards. We stand behind the quality of our components, offering a warranty against manufacturing defects. For B2B partners, we provide comprehensive technical data sheets and support to ensure correct application and installation.

FAQ

Q1: How do I confirm this bushing is the correct part for my specific Yanmar 4D84 engine?
A1: While this part (129001-02903) is designed for the 4D84 series, we strongly recommend cross-referencing your engine’s specific model designation and serial number with your engine’s service manual or consulting with our technical team before purchase to ensure a perfect match for your sub-model and production year.

Q2: What is the critical installation consideration for camshaft bushings?
A2> The most critical factor is achieving the correct oil clearance between the bushing’s inner diameter and the camshaft journal. This requires precise measurement (using micrometers and bore gauges) and often involves line-boring or honing by a qualified machinist to achieve the specification outlined in the engine service manual. Incorrect clearance can lead to rapid wear or oil pressure issues.

Q3: Is this part sold individually or as a full set for the engine?
A3> This listing is for a single camshaft bushing. An engine typically requires multiple bushings (one for each camshaft journal). Please check your engine’s requirements and order the corresponding quantity. We support bulk orders and can provide customized packaging for kit assembly.

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 .