Cummins Corrosion - Protected Camshaft Bush 4983253 3940059 for Qsb, Qsc, Qsl, Isb, Isc, Isl Series Engines

• Customization: Available
• Certification: ISO9001
• Standard Component: Standard Component
• Model NO.: Camshaft Bush 4983253 3940059
• Technics: Forging
• Material: Iron
• Type: Camshaft Bush
• Weight: 0.16kg
• Transport Package: Wooden
• Specification: 7cm*7cm*5cm
• Trademark: zhengwei
• Origin: China/USA
• Production Capacity: 500000

Product Description

Precision - Engineered for Unmatched Performance

The Cummins Camshaft Bush 4983253 and 3940059, along with their alternative part numbers 4983254 and 3940060, are meticulously crafted components designed to enhance the performance and reliability of QSB, QSC, QSL, ISB, ISC, and ISL Series Engines. These camshaft bushes play a vital role in the engine's valve train system, ensuring smooth rotation of the camshaft while minimizing friction and wear. Engineered with precision to exact Cummins specifications, each bush guarantees a perfect fit, reducing the risk of misalignment and enhancing the overall efficiency of the engine.

Parameter	Details
Part Number	3940059 (Replaces 4955596, 4955597)
Material	High - strength wear - resistant alloy with anti - corrosion coating
Hardness	HRC 35 - 40
Maximum Operating Temperature	200°C
Dimensional Tolerance	±0.02mm
Compatible Engine Models	QSB, QSC, QSL, ISB, ISC, ISL series engines
Function	Reduces friction, supports moving parts, and enhances engine stability

Superior Material and Construction

Constructed from high - grade sintered bronze alloy with a specialized graphite - infused lubricant matrix, these camshaft bushes offer exceptional durability and self - lubricating properties. The sintered bronze base provides high load - bearing capacity, capable of withstanding up to 80 MPa of pressure, while the graphite lubricant ensures consistent friction reduction even under extreme operating conditions. Heat - treated at 850°C to achieve a hardness of HRC 38 - 42, the bushes resist deformation and maintain their structural integrity in temperatures ranging from - 40°C to 180°C. Additionally, the outer surface features a micro - textured anti - corrosion coating, protecting against oil degradation and environmental contaminants, which is crucial for engines operating in harsh environments.

Wide - Range Compatibility

The Cummins 3940059 bushing is specifically designed for seamless integration with QSB, QSC, QSL, ISB, ISC, and ISL series engines. In QSB engines, commonly used in construction equipment and light - duty trucks, the bushing plays a crucial role in supporting the engine's rotating components, ensuring smooth power transmission. For ISC and ISL engines, which power heavy - duty trucks and buses, the 3940059 bushing stabilizes the engine's internal mechanisms, reducing noise and vibration. Whether in the high - torque applications of QSL engines or the high - efficiency operations of ISB engines, this bushing provides consistent performance, enhancing the overall reliability and efficiency of the engine.

Packaging and Delivery

Thevalve bushing are 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 bushing each the customers in a timely manner, minimizing any downtime for vehicle maintenance or repair.

Warranty

Cummins offers a warranty on these  bushings, 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  bushings 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.