1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 12086026472060633
  3. CUMMINS 3937220

CUMMINS 3937220 Nos Rocker Lever Arm Intake Isb 5.9

3937220 Cummins Lot Of 2 Nos Genuine Oem Rocker Lever Arm Intake 5.9 Isb

( Brand: Cummins ), ( Manufacturer Part Number: 3937220 ), ( Type: Rocker Arm ), ( Material: Cast Iron )

Review CUMMINS Lot Of Nos Genuine Oem Rocker Lever Arm Intake 5.9 Isb

Introducing the Cummins 3937220 NOS Rocker Lever Arm Intake for the 5.9 ISB engine, a crucial component for optimizing your engine's performance. This intake system is a must-have for those seeking enhanced power and improved engine efficiency.

The rocker lever arm intake, also known as a non-return intake system, is designed to eliminate the backflow of intake charge during the exhaust stroke. This one-way flow of air-fuel mixture into the cylinders ensures that the engine receives a constant supply of fresh air for efficient combustion.

Constructed from high-quality materials, this Cummins intake arm is engineered to withstand the rigors of heavy-duty use. The robust design ensures durability and longevity, even in the most demanding conditions. The intake arm is precisely engineered to fit perfectly with the 5.9 ISB engine, ensuring a seamless installation process.

This intake system is an essential upgrade for anyone looking to boost the power output of their 5.9 ISB engine. By improving the engine's breathing capabilities, you can expect increased horsepower and torque, leading to improved acceleration and overall performance.

Installing the Cummins 3937220 NOS Rocker Lever Arm Intake is a straightforward process. The intake arm comes complete with all necessary hardware, making the installation process hassle-free. The intake system can be installed in just a few hours, allowing you to enjoy the benefits of improved engine performance right away.

In conclusion, the Cummins 3937220 NOS Rocker Lever Arm Intake is an excellent investment for anyone seeking to enhance the power output and efficiency of their 5.9 ISB engine. Its robust design, ease of installation, and proven performance make it a top choice for truck enthusiasts and heavy-duty users alike. Upgrade your engine today and experience the difference that the Cummins rocker lever arm intake can make.

Cummins 3937220 NOS Rocker Lever Arm Intake 5.9 ISB: A Detailed Analysis

The Cummins 3937220 NOS (Nitrous Oxide System) Rocker Lever Arm Intake 5.9 ISB is an essential component for those looking to boost the performance of their Cummins 5.9 ISB engines, particularly for racing applications. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this intake system.

Advantages:

1. Enhanced power: The primary reason for investing in a NOS intake system is the significant power boost it provides. By improving the airflow into the engine, the intake allows for more efficient combustion, resulting in increased horsepower and torque.

2. Customizability: The NOS intake system is compatible with various Cummins engines and can be used with different types of nitrous oxide systems. This flexibility makes it an attractive option for those looking to customize their engine setup.

3. Durability: The Cummins 3937220 intake system is designed to withstand the rigors of high-performance applications. Its robust construction ensures that it can handle the increased demands placed on it when using nitrous oxide.

Disadvantages:

1. Cost: The Cummins 3937220 NOS Rocker Lever Arm Intake 5.9 ISB is a premium product, and its price tag reflects its high-performance capabilities. Those on a budget may find it difficult to justify the investment.

2. Complexity: Installing a NOS intake system is not a straightforward process. It involves working with high-pressure nitrous oxide systems, which can be dangerous if not handled correctly. Professional installation is highly recommended.

3. Maintenance: The NOS intake system requires regular maintenance to ensure optimal performance and longevity. This includes checking and replacing various components, such as seals and gaskets, as well as monitoring the nitrous oxide system for leaks.

Conclusion:

The Cummins 3937220 NOS Rocker Lever Arm Intake 5.9 ISB is a high-performance component that offers significant power gains for those looking to boost the capabilities of their Cummins 5.9 ISB engine. While it comes with a higher cost and increased complexity compared to stock intake systems, its durability, customizability, and performance benefits make it an attractive option for serious racers and high-performance enthusiasts.

Recommendation:

If you are considering purchasing the Cummins 3937220 NOS Rocker Lever Arm Intake 5.9 ISB, it is essential to weigh the advantages and disadvantages carefully. Ensure that you have a clear understanding of the installation process and the ongoing maintenance requirements. Should you decide that the benefits outweigh the drawbacks, this intake system can provide an unparalleled performance boost for your Cummins 5.9 ISB engine. However, if you are looking for a more budget-friendly option or are not ready for the complexity of a high-performance intake system, it may be worth considering alternative solutions.

Details:

USPS will then deliver the item. USPS Ground and Priority. This very often causes a delay in the first scan. Please understand this is out of our control.

On rare occasion, USPS or FedEx may delay a package.

part #: 3937220 prices

  • $41.00-$229.99

specifications rockeareng:

  • brand: Cummins
  • mpn: 3937220
  • type: Rocker Arm
  • material: Cast Iron

payments rockeareng:

  • wallet: Paypal
  • other
  • credit card: Visa

general rockeareng:

  • Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
  • condition: New other see details

seller rockeareng:

  • # reviews: 17580
  • city: Kansas City, Missouri
  • rating: 99.1%

shipping rockeareng:

  • carrier: USPS
  • type: Fixed
  • cost: $0.00
  • transit: 4-9 Days
  • service: USPS First Class
  • class: Standard

offer rockeareng:

  • quantity: 1
  • started: July 10, 2025
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home

returns rockeareng:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller
type: rocker arm,
category: auto parts > engines engine parts > valvetrain components > rocker arms parts, material: cast iron, sku: 12086026472060633,
Cummins 3937220 Is Similar To:
  • (38.2% similar) Selling a 05011432AB Cummins rocker arm no warranty...(September 28th, 2017)
  • (44.6% similar) Thanks I have a lot of other Cummins diesel engine parts if you do not see it listed send me message and can. The rocker arm was removed from a valve Cummins motor. Up for sale is dodge Cummins 12 valve rocker arm tree 0808...(July 16th, 2018)
  • (31.1% similar) Call Shannon at with any questions. A special solution heat treat process os used for this line of valves to maintain a consistent grain flow in the material for unsurpassed ductility. Custom made parts available part cl 1280PRICE is for 12FREE shipping in the lower 48 states call Shannon at with ...(June 20th, 2015)
  • (29.1% similar) See pictures HP2 al 9d rod buyer will receive item as pictured. Used part in good working condition...(April 16th, 2018)
  • (29.1% similar) See pictures HP2 al 9d rod buyer will receive item as pictured. Used part in good working condition...(April 4th, 2018)
  • (39.4% similar) Gets you noticed. Same day shipping is usually available. Used Cummins N14 elect plus diesel engine rocker housing cast, for sale...(August 30th, 2018)
  • (39.1% similar) Same day shipping is usually available. Used Cummins N14 elect plus diesel engine rocker housing for thermostat housing, sale...(August 30th, 2018)
  • (41.4% similar) See pictures HP2 al 3a arm buyer will receive item as pictured. Used part in good working condition...(May 30th, 2018)
  • (32.3% similar) 9 rocker arm bridges lash caps with push rods oem in good condition please see pictures...(February 21st, 2018)
  • (37.7% similar) Used part in good working condition. See pictures HP2 al 11D arm buyer will receive item as pictured...(April 18th, 2018)
  • (37.7% similar) See pictures HP2 al 11D arm buyer will receive item as pictured. Used part in good working condition...(April 18th, 2018)
rockeareng logo
5 offers $41.00–$229.99 USD
  • New. Offer #1 priced at $47.99 + $0.00 shipping estimate = $47.99* total. FREE SHIPPING
  • New other (see details). Offer #2 priced at $41.00 + $0.00 shipping estimate = $41.00* total. Perfect for those looking to replace worn out or damaged rocker arms in their vehicle, these intake rocker arms from Cummins are designed for durability and reliability This product is manufactured in India and comes with a manufacturer's warranty, although it is not a performance part.FREE SHIPPING
  • New. Offer #3 priced at $229.99 + $0.00 shipping estimate = $229.99* total. No Tech Data (PN: ).FREE SHIPPING
  • New. Offer #4 priced at $190.45 + $0.00 shipping estimate = $190.45* total. Engine Rocker Arm.FREE SHIPPING
  • New. Offer #5 priced at $65.00 + $0.00 shipping estimate = $65.00* total. OEM Quality: Manufactured to Cummins strict standards for durability and performance. Part Number: .FREE SHIPPING

Copyright © rockeareng.com