3680441 | Genuine Cummins® Air Brake Compressor

SKU: 3680441 MPN: 3680441

This new Cummins® Single cylinder air brake compressor is a critical heavy-duty truck component. With part number 3680441, it offers water cooling and a max pressure of 145.0 psi. A direct replacement for QSX15, QSB, ISB, ISX engines in commercial vehicles, built to OEM specifications.

$1,299.00
No Core Charge
3 in stock

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Product Description

Product Name Single Cylinder Air Brake Compressor Product Name Single Cylinder Air Brake Compressor
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 3680441 Part Number 3680441
Type Single Cylinder Type Single Cylinder
Suitable foe Engine
Cummins QSX15 QSB ISB ISX Cummins QSX15 QSB ISB ISX
Specifications
Cooling Water Cooling Water
Lubrication Lubrication supplied from engine Lubrication Lubrication supplied from engine
Mounting Mounting Flange Mounting Mounting Flange
Crankshaft Thread M20 x 1.5 Crankshaft Thread M20 x 1.5
Operating speed: 3000 (1/min) Operating speed: 3000 (1/min)
Max. operating pressure: 145.0 psi Max. operating pressure: 145.0 psi
Piston diameter: 3.35 in Piston diameter: 3.35 in
Piston stroke: 2.20 in Piston stroke: 2.20 in
Swept Volume 318 cm³ Swept Volume 318 cm³
Calculated Volume 0.000001 dm³ Calculated Volume 0.000001 dm³
Port Thread 0 0.81 in Port Thread 0 0.81 in
Port Thread 2 M27 x 2 Port Thread 2 M27 x 2
Port Thread 4 M10 x 1.0 Port Thread 4 M10 x 1.0
Port Thread 8.1 Ø 0.4 in Port Thread 8.1 Ø 0.4 in
Port Thread 9 M18 x 1.5 Port Thread 9 M18 x 1.5
Port Thread 9.1 M18 x 1.5 Port Thread 9.1 M18 x 1.5
Port Thread 9.2 M18 x 1.5 Port Thread 9.2 M18 x 1.5
Temperature Range -40°C to +80°C Temperature Range -40°C to +80°C

Useful Information

Description and Purpose:

The Cummins® Single Cylinder Air Brake Compressor (Part Number: 3680441) is a genuine OEM-spec replacement for use with QSX15, QSB, ISB, and ISX engines. Designed for precision and durability, it features a water-cooled system, flange mounting, and engine-supplied lubrication. This compressor is engineered as a direct match to the original component, ensuring straightforward installation and factory-standard performance.

Why Replacement is Important:

Timely replacement with an OEM-quality part like this is essential to restore consistent air supply to the braking system. Over time, compressors can wear out or become less efficient. This unit provides a reliable, direct-fit solution, helping maintain operational safety and meeting exact engine requirements.

Impact on Vehicle Performance:

This compressor delivers dependable operation with a maximum pressure of 145 psi and a swept volume of 318 cm³, supporting the vehicle’s braking needs under demanding conditions. Its compatibility with factory mounting and ports allows it to function seamlessly without modification or adjustment.

Manufacturer Information:

Cummins® is a trusted name in heavy-duty engine technology, known for producing high-quality, OEM-grade parts. Their products meet rigorous standards for reliability and fitment, making them a preferred choice for professional repairs and replacements in commercial vehicles.

Tags Category: Air Brake Compressor, Compressor, Brake System, Pneumatic System, Air System, Air Compression, Pneumatic Component, Compressed Air, Air Brake System Component, Single Cylinder

Warranty

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.

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  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 3680441