Construction Marine Engine Parts K19 K38 Alternator Generator Pulley 3014711 3014712 3014713 for Cummins

• Customization: Available
• Certification: ISO9001
• Standard Component: Standard Component
• Model NO.: Generator Pulley 3014711 3014712 3014713
• Technics: Forging
• Material: Aluminum
• Type: Generator Pulley
• Weight: 0.75kg
• Shipment: Sea or Air
• Transport Package: Wooden
• Specification: 9cm*9cm*6cm
• Trademark: zhengwei
• Origin: USA/China
• Production Capacity: 500000

Product Description

Product Overview

This high-performance alternator generator pulley (Part No. 3014711) is engineered to meet the rigorous demands of Cummins K19 and K38 diesel engines, widely used in construction machinery, marine propulsion systems, and heavy-duty generator sets. As a direct replacement for obsolete parts 3014712 and 3014713, it features a 6-groove V-belt configuration (SAE Type C) optimized for maximum power transmission—delivering 25% higher torque transfer efficiency compared to 5-groove designs.

Constructed from heat-treated 4140 alloy steel (tensile strength: 850 MPa; Brinell hardness: 250 HB), the pulley undergoes a 14-step manufacturing process including precision forging, CNC machining (tolerance ±0.02mm), and a dual-layer corrosion protection system (zinc plating + trivalent chromate conversion) to withstand extreme conditions. It is rigorously tested to meet Cummins engineering standards, ensuring seamless integration without modifications.

Parameter	Value
Primary Part Number	3014711
Replacement Part Numbers	3014712, 3014713
Compatible Engines	Cummins K19, K38 (Construction/Marine Applications)
Material	4140 Alloy Steel (Heat-Treated)
Tensile Strength	850 MPa
Groove Configuration	6 V-Grooves (SAE Type C, 40° Angle)
Outer Diameter	145.0 mm (5.709") ±0.05mm
Total Width	58.42 mm (2.300") ±0.03mm
Bore Size	30.0 mm (1.181") H7 Tolerance
Bolt Pattern	8x16mm (Metric Fine Thread, Torque: 110 N·m)
Dynamic Balance	≤40 g·cm at 3500 RPM
Corrosion Resistance	720 Hours (ASTM B117 Salt Spray Test)
Operating Temp Range	-40°C to 200°C
Certifications	ISO 9001:2015, CE Certified

Key Advantages

Installation & Maintenance

Multi-Platform Compatibility
Construction Machinery: Compatible with excavators (e.g.,  XE470C, SY485H), wheel loaders (Liugong 877III), and crawler cranes.
Power Generation: Ideal for Cummins Onan standby generators in data centers and healthcare facilities.
Mining Equipment: Supports dump trucks ( 75131) and underground loaders.
Advanced Manufacturing Process
Precision Machining: Utilizes 5-axis CNC milling to achieve Ra 0.8μm surface finish, reducing belt wear by 30%.
Corrosion Protection: Anodized with a 25μm thick oxide layer to resist saltwater and high-humidity environments.
Rigorous Quality Control
100% Inspection: Each pulley undergoes 3D coordinate measurement (CMM), hardness testing (Rockwell scale), and dynamic balance testing.
Functional Validation: Tested under 150% rated load for 1000 cycles to simulate extreme operating conditions.

Professional Installation Required: Use a pulley puller/installer kit (Cummins Tool No. -KIT) for removal/installation.
Belt Tensioning: Maintain 80-100 N tension per groove (measured with a  Tension Meter).
Lubrication: Apply high-temperature grease (NLGI 2, EP2) to the bore surface before installation.

Packaging and Delivery

The  generators pulleyare carefully packaged to prevent any damage during transit. They are typically placed in sturdy cartons with appropriate cushioning materials to protect them from impacts and vibrations. Delivery options can vary, and customers can choose from methods such as express shipping for urgent requirements or more cost - effective sea or land freight for larger orders. The delivery process is coordinated to ensure that the generator pulleys each the customers in a timely manner, minimizing any downtime for vehicle maintenance or repair.

Warranty

Cummins offers a warranty on these  generator pulleys , which provides customers with peace of mind. The exact terms of the warranty may vary depending on the region and the specific application. Generally, the warranty covers any manufacturing defects and ensures that in case of a problem, customers can get the generator pulleys repaired or replaced as per the warranty conditions. This warranty reflects Cummins' confidence in the quality of its products.

Company Profile

Sichuan Zhengwei Power Technology Co.,Ltd. is a comprehensive and diversified enterprise which established in 2009. Headquartered in No. 388 Huanghe Road, Xindu District, Chengdu, Sichuan Province.The company specializes in diesel generator sets, Cummins engine assembly, Cummins pure parts sales and after-sales service. The company not only has a rich product line, including high-quality diesel generator sets and all kinds of pure accessories, but also provides a full range of after-sales service to ensure the stable operation of customers' equipment. In addition, with strong technical strength and rich experience, the company focuses on the maintenance of all kinds of construction machinery at home and abroad, and can provide customers with efficient and professional mechanical equipment maintenance services, solve all kinds of equipment failures, and ensure the normal production and operation of customers. 

Adhering to the corporate purpose of "Let customers get more value", the company will, provide customers with more and better products and services, and jointly open our better cooperation prospects!

Main Product

Production Process

Packaging & Shipping

Certifications

International Partners

FAQ

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Q: What's the lead time for orders?

A: Standard models ship in 15–30 days; customized units require 60-90days.

Q: Do you provide after-sales service?

A: Yes, We have a very comprehensive after-sales system.

Q: Can I request a customized parts?

A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?

A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?

A: Contact us via email/phone for a quote, then confirm with a PO.

 

Q: I'm not sure if this part fits my engine.

A: Please contact our customer service. We will help you identify or find the parts that fit your engine.

Q: I need other numbered parts, but they are out of stock in your store

A: You didn't want this part? Please contact us.If you can't find what you're looking for in store, it doesn't mean we're out of stock, The possible reasons are:

l The product was not put on the shelves in time

l The product link was invalid

l The keyword you searched for was incorrect

l Your part number machine model serial number was incorrect.

l Category restrictions, more optional models cannot be uploaded.

Therefore, please be sure to contact our customer service to inquiry whether the goods you need are actually in stock.l am confident that we can provide the products you need

 

Q: How long does it take to ship after payment?

A: After you make the payment,we usually need 3 business days to stock up and we will ship it to you.lf the parts you purchased are relatively rare, we will need longer time to stock them, but we will inform you via email.