Product Overview

This high-quality piston assembly is engineered for the Cummins N14 engine, designed to meet or exceed OEM specifications for durability and performance. As a leading supplier in the global heavy-duty engine parts market, we ensure this component is ready for worldwide shipping, serving key industrial and commercial vehicle sectors across North America, Europe, the Middle East, Asia-Pacific, and Africa.

Key Features & Benefits

• Premium Material Construction: Manufactured from high-grade aluminum alloy for optimal strength-to-weight ratio, heat dissipation, and resistance to thermal fatigue.
• Precision Engineering: Computer-controlled machining ensures exact tolerances for perfect fitment, smooth operation, and balanced engine performance.
• Complete Assembly: Includes the piston, wrist pin, and lock rings (circlips) as a ready-to-install kit, saving time and ensuring all components are matched for optimal function.
• Enhanced Durability: Advanced skirt coating and ring groove design reduce friction and wear, contributing to extended service life and reduced oil consumption.
• Reliable Performance: Restores factory compression and power output, ensuring your Cummins N14 engine operates at peak efficiency.

Technical Specifications

OEM Cross-Reference

This piston assembly directly replaces the following OEM part numbers:

• Cummins: 3087634, 3803741

Note: Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This piston assembly is designed for use in Cummins N14 diesel engines. The N14 engine was widely used in a range of heavy-duty applications, including:

• Heavy-Duty Trucks: Various models from Peterbilt, Kenworth, Freightliner, International, and Volvo.
• Industrial & Stationary Power: Generator sets, marine auxiliary power, and industrial machinery.
• Application Years: Commonly found in vehicles and equipment from the 1990s through the 2000s.

Global Supply & Distribution

We are a certified exporter specializing in automotive engine components for the international B2B market. Our logistics network ensures efficient delivery to major global hubs.

• Worldwide Shipping: We ship via air and sea freight to all major ports and industrial centers worldwide.
• Key Markets Served: North America (USA, Canada, Mexico), South America (Brazil, Chile), Europe (UK, Germany, Poland, Netherlands), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and Africa (South Africa, Nigeria).
• Fast Delivery: Consolidated container loads and established air freight partnerships ensure timely delivery to keep your operations running.
• Export Compliance: All shipments are prepared with complete commercial invoices, packing lists, and comply with international trade regulations for smooth customs clearance.

Quality Assurance

Every component is manufactured under strict quality control protocols to ensure reliability and performance.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machinery and metallurgical processes.
• Rigorous Testing: Each piston undergoes dimensional inspection, hardness testing, and visual quality checks to confirm it meets precise specifications.
• Warranty: Backed by an 8-month warranty against manufacturing defects, providing confidence in the product’s quality and durability.

FAQ

Q: Is this a direct replacement for my Cummins N14 engine’s piston?
A: Yes, this piston assembly (Part# 3087634 / 3803741) is engineered as a direct OEM replacement for the Cummins N14 engine. For critical rebuilds, we recommend verifying the part number against your engine’s specific serial number or consulting your service manual.

Q: Does the piston come with all necessary components for installation?
A: Yes. This is sold as a complete assembly kit, which includes the piston body, the wrist (piston) pin, and the corresponding lock rings (circlips). You will need to purchase piston rings separately as they are typically sold as a matched set based on cylinder bore condition.

Q: What are the recommended installation checks for this piston?
A: Prior to installation, always: 1. Measure the cylinder bore for wear, taper, and out-of-round conditions to ensure proper clearance. 2. Check the pin bore fit and the pin-to-connecting rod small end clearance. 3. Ensure the lock rings are properly seated in their grooves. 4. We recommend professional installation by a qualified mechanic to ensure correct assembly and engine balance.

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 .