3521423 | Genuine Cummins® Single Cylinder Air Brake Compressor for ISX and QSX engines

SKU: 3521423 MPN: 3521423

Feel the power of precise braking with this New Genuine Cummins Air Brake Compressor. Part number: 3521423. Water-cooled single-cylinder design delivers 145 psi max pressure, 3000 rpm speed, and fits ISX and QSX engines.

$1,599.00
No Core Charge
8 in stock, ready to ship

Pickup available at Warehouse - Howard st 7092 ste F

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: 3521423

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    Orders before 7 PM EST ship same business day
  • Location icon, warehouse pickup point.
    Pickup available. Usually ready in 24 hours

Product Description

Product Name Air Brake Compressor Product Name Air Brake Compressor
Type Single Cylinder Type Single Cylinder
Brand Cummins® Brand Cummins®
Condition New Condition New
Part Number 3521423 Part Number 3521423
Engine Compatibility
Cummins ISX, QSX Cummins ISX, QSX
Specifications
Cooling Water Cooling Water
Crankshaft thread M20 x 1.5 Crankshaft thread M20 x 1.5
Lubrication Lubrication supplied from engine Lubrication Lubrication supplied from engine
Max. operating pressure 145.0 psi Max. operating pressure 145.0 psi
Mounting Mounting Flange Mounting Mounting Flange
Operating speed 3000 (1/min) Operating speed 3000 (1/min)
Piston diameter 3.35 in Piston diameter 3.35 in
Piston stroke 2.20 in Piston stroke 2.20 in
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 0.32 in Port thread 8.1 Ø 0.32 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
Swept volume (cm³) 318 cm3 Swept volume (cm³) 318 cm3
Temperature range -30°C to +90°C Temperature range -30°C to +90°C

Useful Information

Description and Purpose:

Part number: 3521423 identifies this Genuine Cummins Air Brake Compressor, provided in new condition. Compatible with ISX and QSX engines, it is a single-cylinder, water-cooled compressor with lubrication supplied from the engine. Its 145 psi maximum pressure ensures reliable operation of air brake and pneumatic systems.

Why Replacement is Important:

A failing compressor can compromise braking efficiency and air system performance. Replacing it maintains correct system pressure and prevents potential failures.

Impact on Vehicle Performance:

Restores dependable air supply, stabilizes braking response, and supports smooth operation of vehicle pneumatic systems.

Manufacturer Information:

Cummins® provides carefully engineered parts built for precise integration, dependable functionality, and long-lasting durability across diesel power systems.

Tags & Category: Air Brake Compressor, Cummins, Single Cylinder, Cummins Air Compressor, Air Brake System, Heavy Duty Truck, Commercial Vehicle, Diesel Engine Component, Brake Air Supply, Truck Air Compressor, Pneumatic System

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: 3521423