4952758 | Genuine Cummins® Air Brake Compressor

SKU: 4952758 MPN: 4952758

Ensure optimal performance with this new Cummins® Single cylinder air brake compressor. A vital heavy-duty truck part, part number 4952758 (cross-reference 4952758RX) offers water cooling and 145.0 psi max pressure. This direct replacement fits QSX15, QSB, ISB, ISX engines, built to OEM quality for commercial vehicles.

$1,299.00
No Core Charge
3 in stock

Need it fast? We offer overnight shipping

Contact us to check if overnight next-day delivery is available for your order - PN: 4952758

  • Free shipping over $199 Order today — get it
  • Clock Icon
    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 Single Cylinder Air Brake Compressor Product Name Single Cylinder Air Brake Compressor
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 4952758 Part Number 4952758
Cross Reference 4952758RX Cross Reference 4952758RX
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:

This Cummins® Single Cylinder Air Brake Compressor (Part Number: 4952758) is a genuine replacement designed for seamless integration with QSX15, QSB, ISB, and ISX engines. Built to OEM specifications, it features a flange mount, water cooling, and engine-supplied lubrication.Why Replacement is Important:

Replacing a worn or malfunctioning air brake compressor is critical for maintaining proper air pressure in the brake system. This direct-fit replacement ensures the system operates as originally intended, restoring reliability and maintaining vehicle safety standards without the need for modifications.

Impact on Vehicle Performance:

With original port threads, piston specs, and max operating pressure of 145.0 psi, this compressor ensures consistent air delivery. By matching all factory settings, it helps maintain optimal brake response and dependable system operation under demanding conditions.

Manufacturer Information:

Cummins® is a globally recognized OEM that supplies components engineered for durability and precision. Their parts deliver a true OEM match, offering customers confidence in performance, compatibility, and longevity across a wide range of commercial vehicle applications.

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.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
  • 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: 4952758