Product Overview

This is a high-quality replacement piston designed specifically for the Cummins N14 diesel engine. Engineered to meet or exceed OEM specifications, this piston is a critical component for engine rebuilds and overhauls in demanding applications. We specialize in the global supply of heavy-duty engine parts, serving major industrial markets across North America, Europe, the Middle East, Asia-Pacific, and Africa with reliable shipping and export compliance.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal engine performance.
• Superior Durability: Constructed from high-grade materials to withstand the high compression and thermal stresses of diesel operation.
• Enhanced Performance: Designed to restore engine compression, power output, and fuel efficiency in Cummins N14 engines.
• Rigorous Quality Control: Each piston undergoes thorough inspection and testing, backed by a machinery test report.
• Global Application Readiness: Suitable for a wide range of sectors, ensuring versatility for international B2B buyers.

Technical Specifications

OEM Cross-Reference

This piston directly replaces the following OEM part numbers:

• Cummins: 4059302
• Cummins: 3087634

Note: OEM service is available for custom requirements. Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This piston is designed for use in Cummins N14 diesel engines. These engines are commonly found in a wide array of heavy-duty equipment, including:

• Construction: Excavators, bulldozers, dump trucks, cranes.
• Industry: Power generation sets (Gensets), industrial pumps, compressors.
• Agriculture: Tractors, harvesters, irrigation systems.
• Marine: Auxiliary and propulsion engines for workboats.
• Handling: Large forklifts, port cargo handlers.

Global Supply & Distribution

We are a trusted exporter of engine components with a robust logistics network. Our capabilities include:

• Worldwide Shipping: Efficient sea and air freight to all major global markets.
• Key Markets Served: Direct supply to distributors and workshops in North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America.
• Fast Delivery to Hubs: Consolidated shipping to major ports like Los Angeles, Rotterdam, Dubai, and Sydney for rapid regional distribution.
• Export Compliance: All shipments are prepared with complete commercial invoices, packing lists, and comply with international trade regulations.

Quality Assurance

• Manufacturing Standard: Produced in ISO-certified facilities in Guangdong, China, adhering to strict quality management systems.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Testing & Inspection: Every batch is subject to dimensional checks and material analysis. A Machinery Test Report is provided. Video outgoing-inspection is available upon request to verify quality before shipment.
• Post-Warranty Support: Comprehensive online technical support is available for installation guidance and troubleshooting.

FAQ

Q: How do I confirm this piston will fit my specific Cummins N14 engine?
A: While this piston is designed for the N14 platform, we strongly recommend cross-referencing the part number (4059302 or 3087634) with your engine’s specific service manual or serial number breakdown. Variations can exist between different production years and horsepower ratings.

Q: Is this piston sold as a single item or as part of a set?
A> This piston is sold as a single item. For a complete engine overhaul, you will typically need a set matching the number of cylinders in your engine (e.g., 6 pistons for an inline-6 N14). Please contact us for volume pricing on full sets.

Q: What should I check during installation to ensure proper performance?
A> Critical steps include: 1) Measuring the cylinder liner bore for correct clearance, 2) Inspecting and properly gapping the piston rings, and 3) Ensuring the piston pin and connecting rod small end are within specification. Always follow the official Cummins rebuild procedures for torque specifications and assembly lubrication.

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 .