4059825 | Genuine Cummins® Single Cylinder Air Brake Compressor for ISM, M11, N14 engines

SKU: 4059825 MPN: 4059825

Strengthen brake response with the Genuine Cummins Air Brake Compressor. Part number: 4059825. Condition: new. A durable, water-cooled single-cylinder unit built for ISM, M11, and N14 heavy-duty engine applications.

$1,675.00
No Core Charge
3 in stock

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Product Description

Product Name Air Brake Compressor Product Name Air Brake Compressor
Type Single Cylinder Type Single Cylinder
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 4059825 Part Number 4059825
Cross Reference 4059825RX Cross Reference 4059825RX
Engine Compatibility
Cummins ISM, M11, N14 Cummins ISM, M11, N14
Specifications
Calculated Volume (dm³) 0.000001 Calculated Volume (dm³) 0.000001
Cooling Water Cooling Water
Crankshaft thread Ø 28.7 mm Crankshaft thread Ø 28.7 mm
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 0.2 in Port thread 8.1 Ø 0.2 in
Port thread 9 3/4 Port thread 9 3/4
Port thread 9.1 3/4 Port thread 9.1 3/4
Port thread 9.2 3/4 Port thread 9.2 3/4
Swept volume (cm³) 318 cm³ Swept volume (cm³) 318 cm³
Temperature range -40°C to +80°C Temperature range -40°C to +80°C

Useful Information

Description and Purpose:

Built by Cummins and supplied as Part number: 4059825 in New condition, this Genuine Single Cylinder Air Brake Compressor delivers the pressurized air needed for commercial brake control. Designed for engine lubrication and water cooling, it runs at 3000 RPM, pushes up to 145 PSI, and uses precise port threading including 3/4-16 UNF, M27×2 and M10×1 for secure pneumatic routing. Cross reference: 4059825RX

Why Replacement is Important:

Once output drops or pressure builds slowly, valves, boosters and reservoirs can no longer maintain safe brake function.

Impact on Vehicle Performance:

Fresh installation restores fast pressure buildup for consistent brake behavior under heavy hauling cycles with ISM, M11 and N14 engines.

Manufacturer Information:

Cummins® provides engineered systems built to withstand vibration, high-RPM duty cycles, and continuous high-load applications across commercial truck platforms.

Tags & Category: Air Brake Compressor, Single Cylinder Compressor, Water-Cooled Air Compressor, Engine-Lubricated Compressor, Cummins Air Brake, Cummins ISM, Cummins M11, Cummins N14, 145 PSI Max Pressure, 3000 RPM Operating Speed, Mounting Flange Compressor, 3.35 in Piston Diameter, 2.20 in Stroke, 318 cm3 Swept Volume, Ø28.7 mm Crankshaft Thread, 3/4-16 UNF Port, M27x2 Air Port, M10x1 Port, 0.81 in Port, 0.2 in Port, -40°C to +80°C Temperature Range, Heavy Duty Truck Compressor, Diesel Engine Air Brake Component

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: 4059825