NT855 Rocker Arm AR2038 for Cummins Engine Parts – Excavator, Truck & Loader

Product Details

Product Overview

This high-quality NT855 Rocker Arm, identified by the part number AR2038, is a critical component designed for the Cummins NT855 series diesel engine. As a precision-engineered part, it ensures the correct timing and operation of the engine’s valve train, directly impacting performance, fuel efficiency, and durability.

Manufactured to OEM specifications, this rocker arm is commonly used in heavy-duty applications including excavators, forklifts, loaders, bulldozers, buses, and trucks. It is a direct replacement for the original Cummins part, offering a reliable solution for engine rebuilds and maintenance.

Key Features & Benefits

• OEM Specification: Manufactured to match the original Cummins NT855 rocker arm dimensions and material properties, ensuring a precise fit and reliable function.
• Durable Construction: Built from high-strength materials to withstand the high stress and cyclic loads within the valve train, promoting long service life.
• Direct Replacement: Part number AR2038 is a direct cross-reference, simplifying identification and installation for mechanics and workshop technicians.
• Enhanced Valve Timing: Precision-ground surfaces ensure accurate rocker arm ratio and valve lift, optimizing engine breathing and combustion efficiency.
• Rigorous Testing: Each unit undergoes a machinery test report inspection and outgoing video inspection to confirm dimensional accuracy and performance.
• Versatile Application: Suitable for a wide range of heavy equipment, from construction machinery to on-highway trucks, reducing inventory complexity.
• Cost-Effective Solution: Offers a competitive alternative to genuine OEM parts without compromising on quality or fitment.

Technical Specifications

OEM Cross-Reference

• Primary Part Number: AR2038
• Alternative/OEM Reference: 203838 (Commonly used cross-reference)
• Additional Reference: Check for compatibility with Cummins NT855 engine service kits.

Note: Always verify fitment using the original part number for complete assurance.

Compatibility

This rocker arm is specifically designed for the Cummins NT855 engine series. It is commonly used in the following equipment applications:

• Excavators: Various models utilizing the NT855 engine.
• Forklifts: Heavy-capacity forklifts.
• Loaders: Wheel loaders and track loaders.
• Bulldozers: Crawler dozers.
• Trucks: On-highway and off-highway trucks.
• Buses: Coach and transit buses.
• Other Equipment: Generators, marine, and industrial applications using the NT855.

Global Supply & Distribution

We are a dedicated exporter of heavy-duty engine parts, shipping directly from our warehouse in Guangdong, China. Our logistics network ensures fast and reliable delivery to major ports and industrial centers worldwide, including:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Shanghai, Sydney, Dubai
• Middle East & Africa: Jebel Ali, Jeddah, Durban
• South America: Santos, Buenos Aires, Callao

We offer flexible shipping options (FOB, CIF, DDP) and can consolidate orders for bulk purchases. Our export experience ensures smooth customs clearance and documentation.

Quality Assurance

This product is manufactured under strict quality control standards in an ISO-compliant facility. Key quality measures include:

• Machinery Test Report: Provided to verify mechanical properties and dimensional accuracy.
• Video Outgoing Inspection: A video inspection report is available upon request to confirm the product’s condition before shipment.
• Material Certification: Raw materials are sourced from certified suppliers to ensure consistent hardness and tensile strength.
• 6-Month Warranty: We stand behind the quality of our parts, offering a 6-month warranty against manufacturing defects.

FAQ

Q1: How can I confirm this rocker arm will fit my Cummins NT855 engine?
A: Please verify the part number stamped on your original rocker arm. If it matches AR2038 (or 203838), this part is a direct replacement. If you are unsure, please provide the engine serial number (ESN) and we can cross-reference it for you.

Q2: What is the recommended installation procedure for this rocker arm?
A: Installation should be performed by a qualified diesel mechanic. It is critical to follow the engine manufacturer’s service manual for proper torque specifications and valve lash adjustment. We recommend cleaning the mounting surface and applying engine oil to the rocker shaft and ball ends before installation.

Q3: Do you offer a warranty for this part, and what is the return policy?
A: Yes, this product comes with a 6-month warranty against defects in material and workmanship. If you receive a damaged or incorrect item, please contact us within 7 days of receipt with photos or video evidence for a prompt resolution. We do not cover wear and tear or damage from improper installation.