
Product Overview
This is a high-quality replacement Rocker Arm Shaft (Part Number: 3679418) engineered for Cummins K19 series diesel engines. As a leading supplier of heavy-duty engine components, we specialize in global distribution to major industrial markets, ensuring reliable performance for commercial vehicles and heavy machinery worldwide.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM specifications (OEM Size) for a perfect fit and reliable valve train operation.
- Enhanced Durability: Constructed from high-grade materials to withstand the high-stress environment of diesel engines, ensuring long service life.
- Optimal Performance: Ensures precise rocker arm alignment and smooth pivoting, contributing to consistent engine power and efficiency.
- Rigorous Quality Control: Each part undergoes thorough inspection, supported by machinery test reports and video outgoing-inspection for verified quality.
- Global Compliance: Packaged and documented for seamless international shipping and customs clearance.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Rocker Arm Shaft |
| Part Number | 3679418 |
| Engine Model | Cummins K19 |
| Engine Type | Diesel |
| Size / Dimensions | OEM Standard Size |
| Weight | 2 kg |
| Packing | Plastic Bag, Box, Carton |
| Place of Origin | Guangdong, China |
OEM Cross-Reference
This part is a direct replacement for the following OEM number:
- Cummins: 3679418
Note: This is a high-quality aftermarket replacement part, manufactured to meet or exceed the specifications of the genuine component.
Compatibility
Primary Engine Application:
- Cummins K19 Diesel Engine
Typical Vehicle & Machinery Applications:
- Heavy-Duty Trucks
- Construction Equipment: Excavators, Bulldozers, Loaders
- Industrial Vehicles: Forklifts
- Commercial Vehicles: Buses
Always verify your engine’s model and serial number before purchase to ensure correct fitment.
Global Supply & Distribution
We are equipped to serve a global B2B clientele with efficient logistics and reliable supply chain management.
- Worldwide Shipping: We export to all major industrial regions including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
- Fast Delivery Network: Consolidated shipments ensure cost-effective and timely delivery to major ports and inland logistics hubs.
- Export Expertise: Extensive experience in international trade, with all necessary commercial documentation (Packing List, Invoice, COO, Test Reports) provided for smooth customs processing.
- Strategic Sourcing: Based in Guangdong, China’s major manufacturing hub, ensuring consistent supply and competitive pricing.
Quality Assurance
- Manufacturing Standard: Produced in ISO-certified facilities using advanced CNC machining and quality materials.
- Warranty: Backed by a 6-month warranty against manufacturing defects.
- Testing & Inspection: Every batch is subject to dimensional checks, material verification, and functional testing. A Machinery Test Report is available upon request.
- Pre-Shipment Check: All orders undergo a final Video Outgoing-Inspection to confirm product and packing quality before dispatch.
FAQ
Q: Is this part a direct fit for my Cummins K19 engine?
A: Yes, this Rocker Arm Shaft (3679418) is manufactured to the exact OEM size and specifications for a direct, bolt-on replacement in Cummins K19 engines. Please confirm your engine’s full model designation prior to ordering.
Q: What documentation is provided with the shipment for international buyers?
A> We provide a complete set of export documents, including a Commercial Invoice, Packing List, and Certificate of Origin. Additionally, a Machinery Test Report for the batch can be supplied to verify compliance with technical specifications.
Q: How should this rocker arm shaft be installed and maintained?
A> Installation should be performed by a qualified technician following the engine manufacturer’s service manual. Ensure the shaft and rocker arms are clean and properly lubricated during assembly. Regular engine maintenance, including valve lash adjustments, is crucial for the longevity of the valve train 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 .