Product Overview

This high-performance Rocker Arm Assembly (Part Number: 4944183) is engineered for the Cummins B3.3 diesel engine. As a trusted global supplier of industrial and automotive engine components, we provide reliable parts with seamless worldwide shipping to major markets including North America, Europe, the Middle East, and Asia-Pacific. This assembly is a critical component for maintaining optimal valve timing and engine efficiency in a wide range of heavy-duty machinery.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications (OEM Size) for a perfect fit and reliable performance, ensuring seamless integration with your Cummins B3.3 engine.
• Enhanced Durability: Constructed from high-grade materials to withstand the high-stress environment of diesel engine operation, offering extended service life and reduced downtime.
• Optimized Valve Operation: Ensures precise valve actuation for optimal combustion, leading to consistent engine power, fuel efficiency, and lower emissions.
• Rigorous Quality Control: Each assembly undergoes thorough inspection and testing, supported by machinery test reports and video outgoing-inspection documentation for your assurance.
• Global Logistics Ready: Professionally packed in plastic bag, box, and carton for secure international shipment to any industrial port or destination.

Technical Specifications

OEM Cross-Reference

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

• Cummins: 4944183

For confirmation, always cross-reference with your engine’s service manual or existing part.

Compatibility

This Rocker Arm Assembly is designed specifically for the Cummins B3.3 diesel engine. This engine platform is commonly found in a diverse range of industrial and commercial equipment, including but not limited to:

• Forklifts
• Bulldozers & Construction Equipment
• Buses & Coaches
• Excavators
• Trucks (Medium-Duty)
• Loaders (Skid-steer, Wheel, etc.)
• Generator Sets
• Agricultural Machinery

Global Supply & Distribution

We specialize in the international B2B supply of critical engine components. Our established logistics network ensures efficient delivery to key industrial regions worldwide.

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), Asia-Pacific (Australia, Singapore, Japan), the Middle East (UAE, Saudi Arabia), and South America.
• Fast Port Delivery: Prioritized shipping to major global ports such as Los Angeles, Rotterdam, Hamburg, Singapore, Dubai, and Sydney.
• Export Compliance: All shipments are prepared with complete commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
• Bulk & Container Orders: We support both small parcel shipments and full container load (FCL) orders to meet the needs of distributors, workshops, and large-scale operators.

Quality Assurance

Our commitment to quality ensures you receive a reliable, performance-matched component.

• Manufacturing Standards: Produced in ISO-certified facilities using precision tooling and strict quality management systems.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your operations.
• Testing & Documentation: Every batch is subject to material checks, dimensional verification, and functional testing. A machinery test report is available, and our video outgoing-inspection process provides visual confirmation of quality before dispatch.

FAQ

Q1: How can I verify this part will fit my specific Cummins B3.3 engine?
A1: The surest method is to match the part number. Locate the existing rocker arm assembly on your engine or consult your engine’s service parts manual to confirm the OEM part number is 4944183. You can also provide your engine’s serial number to our technical support team for verification.

Q2: What is included in the “Rocker Arm Assembly”?
A2: This assembly typically includes the rocker arm(s), shaft (if applicable), bushings, and necessary hardware required for a complete installation, replacing the worn component as a unit. This ensures proper geometry and alignment within the valve train system.

Q3: What are the signs that my Cummins B3.3 needs a new rocker arm assembly?
A3: Common symptoms include excessive valve train noise (ticking or clicking), loss of engine power, rough idling, or increased oil consumption. Visible wear, scoring on the rocker arm tip or bushing, or excessive play are clear indicators that the assembly should be replaced to prevent further 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 .