Product Details

Product Overview

This high-quality Front Intake Rocker Arm is a critical component for Cummins heavy-duty diesel engines, specifically designed for the X15, ISX15, and QSX15 series. As a direct replacement for OEM part numbers 4059351, 5484230, 4059297, and 4298641, this rocker arm ensures precise valve actuation for optimal engine performance. We specialize in global B2B supply, serving major markets across North America, Europe, the Middle East, and Asia-Pacific with reliable inventory and fast shipping.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for perfect fitment and reliable operation.
• Durable Construction: Made from high-strength alloy steel to withstand extreme heat and pressure in heavy-duty applications.
• Wear-Resistant Surface: Heat-treated and hardened contact points reduce friction and extend service life.
• Direct Replacement: Drop-in fit for Cummins X15, ISX15, and QSX15 engines with no modifications required.
• Enhanced Performance: Ensures consistent valve timing and lift for improved fuel efficiency and reduced emissions.

Technical Specifications

OEM Cross-Reference

This rocker arm is a direct replacement for the following OEM and aftermarket part numbers:

• Cummins OEM: 4059351, 5484230, 4059297, 4298641
• Alternate Reference: 4059297NX, 4298641RX

Always verify your existing part number before ordering to ensure compatibility.

Compatibility

• Engine Models: Cummins X15, ISX15, QSX15 (all variants)
• Vehicle Applications: Kenworth T680/T880, Peterbilt 567/579, Freightliner Cascadia, International LT Series, Volvo VNL
• Year Range: 2010–2025 (check specific engine serial number for exact fitment)

Global Supply & Distribution

We maintain a robust supply chain to serve international B2B customers efficiently:

• Worldwide Shipping: Reliable logistics via sea, air, and express courier (DHL, FedEx, UPS).
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore).
• Fast Delivery: Stock available for immediate dispatch from regional warehouses to ports like Houston, Rotterdam, and Dubai.
• Trade Compliance: Experienced in export documentation and customs clearance for smooth international transactions.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities under strict quality control.
• Testing: Each rocker arm undergoes dimensional inspection, hardness testing, and load simulation before shipment.
• Warranty: 12-month warranty against manufacturing defects for peace of mind.

FAQ

Q: Is this rocker arm compatible with my Cummins ISX15 engine built in 2012?
A: Yes, this part is designed for ISX15 engines from 2010 onward. However, we recommend checking your engine serial number and comparing it with the OEM part number (4059351 or 5484230) currently installed to ensure exact fitment.

Q: What is the installation procedure for this rocker arm?
A: Installation requires basic mechanical skills. First, remove the valve cover and rocker shaft assembly. Then, replace the worn rocker arm with this new unit, ensuring proper torque specifications (typically 25–30 ft-lbs for the pivot bolt). Always refer to the Cummins service manual for your specific engine model.

Q: How do I identify if my rocker arm needs replacement?
A: Common signs include excessive valve train noise (clattering), reduced engine power, or uneven idle. Visually inspect for wear on the contact pads, cracks, or looseness on the shaft. If the part number on your current rocker arm matches any of our cross-referenced numbers, it is a suitable replacement.

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 .