DETROIT DIESEL A4720401 Engine Intake Rocker Arm DD15

( Brand: Detroit Diesel ), ( Manufacturer Part Number: A4720401 ), ( Country Of Origin: United States ), ( Type: Rocker Arm Set )

Review DETROIT DIESEL Engine Intake Rocker Arm Assembly Oem fits 2017

The Detroit Diesel A4720401 intake rocker arm is an essential component of the DD15 engine, manufactured by Detroit Diesel Corporation in the year 2017. This intake rocker arm is specifically designed to provide the necessary motion for the engine's intake valves, enabling the efficient combustion process that powers heavy-duty vehicles.

Measuring approximately 11.5 inches in length and 3.7 inches in width, this intake rocker arm is meticulously engineered using high-strength materials to ensure durability and reliability. Its robust construction includes a hardened steel arm with a polished, chrome-plated finish that not only adds an aesthetic appeal but also protects against corrosion.

One end of the intake rocker arm features a large, tapered bearing surface that securely engages with the engine's pushrods. The other end houses a set of intake valve rockers, which transfer the linear motion of the pushrods to the intake valves, facilitating their opening and closing.

This Detroit Diesel intake rocker arm is designed to accommodate the specifications of the DD15 engine, ensuring a perfect fit and seamless integration into the engine system. It is tested rigorously to meet the highest standards of quality and performance, providing peace of mind to fleet managers, mechanics, and vehicle operators alike.

In the event of wear and tear or damage, the Detroit Diesel A4720401 intake rocker arm can be replaced easily, minimizing downtime and keeping your heavy-duty vehicle on the road. By investing in a genuine Detroit Diesel component like this intake rocker arm, you can trust that your engine is in capable hands, delivering the power and efficiency you need to get the job done.

The Detroit Diesel A4720401 DD15 engine intake rocker arm is a crucial component that contributes to the proper functioning of the engine's intake valves. Here are some pros and cons that could help you make an informed decision about purchasing this part.

1. Improved Engine Performance: A faulty or worn-out intake rocker arm can lead to poor engine performance. Replacing it with a new one can help restore the engine's power and efficiency.

2. Enhanced Fuel Economy: A well-functioning intake rocker arm can contribute to better fuel economy by allowing the engine to breathe more efficiently.

3. Reduced Engine Noise: A worn-out intake rocker arm can cause noise in the engine. Replacing it can help reduce engine noise and make the vehicle quieter.

4. Longer Engine Life: Regular replacement of engine parts, including the intake rocker arm, can help extend the life of the engine.

5. OEM Quality: The Detroit Diesel A4720401 intake rocker arm is a genuine OEM (Original Equipment Manufacturer) part. This means it is designed and manufactured to meet the same specifications as the original part that came with the engine.

1. Cost: Replacing an engine part like the intake rocker arm can be expensive, especially when dealing with a high-performance engine like the Detroit Diesel DD15.

2. Labor Costs: If you are not mechanically inclined, you may need to pay for labor costs to have the part installed.

3. Availability: Depending on the location and availability of the part, it may take some time to receive the intake rocker arm.

4. Possible Need for Additional Parts: In some cases, replacing the intake rocker arm may require the replacement of additional parts, which can add to the overall cost.

The Detroit Diesel A4720401 intake rocker arm is an essential engine component that plays a crucial role in maintaining the engine's performance and efficiency. While the cost of replacing this part can be high, the benefits, such as improved engine performance, enhanced fuel economy, reduced engine noise, and longer engine life, can outweigh the costs. If you notice any issues with your engine's intake rocker arm, it's recommended to replace it as soon as possible to avoid more significant and costly repairs down the line.

If you are in need of a new intake rocker arm for your Detroit Diesel DD15 engine, it's recommended to purchase a genuine OEM part, such as the Detroit Diesel A4720401, to ensure proper fitment and optimal engine performance. You can check with your engine dealer or a reputable truck parts supplier to get the best price and availability for this part.

Details:

2017 Detroit Diesel DD15 Engine Intake Rocker Arm Assembly A4720401 OEM, IN GOOD CONDITION PLEASE SEE PICTURES.

part #: a4720401 prices

• $129.99-$467.50

specifications rockeareng:

• for years: 2017
• brand: Detroit Diesel
• mpn: A4720401
• country of origin: United States
• type: Rocker Arm Set

seller rockeareng:

• city: Washougal, Washington
• rating: 99.4%
• # reviews: 964

returns rockeareng:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

payments rockeareng:

• wallet: Google-pay
• other
• credit card: Discover

offer rockeareng:

• availability: In Stock
• best offers: True
• sold: 0
• quantity: 1
• started: January 15, 2026
• options: Ship-to-home

general rockeareng:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

shipping rockeareng:

• transit: 5-8 Days
• carrier: UPS
• class: Standard
• type: Fixed
• service: UPS Ground
• cost: $50.00

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