4938827 | Genuine Cummins® Twin Cylinder Air Brake Compressor for 8.9L ISC/ISL

SKU: 4938827 MPN: 4938827

Maintain reliable braking performance with this Genuine Cummins New Twin Cylinder Air Brake Compressor. Part number: 4938827. Water-cooled and engine-lubricated, it delivers 145 psi pressure, compatible with Cummins 8.9L ISC and ISL engines.

$3,349.00
No Core Charge
3 in stock

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Product Description

Product Name Air Brake Compressor Product Name Air Brake Compressor
Type Twin Cylinder Type Twin Cylinder
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 4938827 Part Number 4938827
Cross Reference 4938827RX Cross Reference 4938827RX
Engine Compatibility
Cummins ISC, ISL Cummins ISC, ISL
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 2.95 in Piston diameter 2.95 in
Piston stroke 2.20 in Piston stroke 2.20 in
Port thread 0 0.98 in Port thread 0 0.98 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 M10 x 1 Port thread 8.1 M10 x 1
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
Temperature range -30°C to +90°C Temperature range -30°C to +90°C

Useful Information

Description and Purpose:

This Genuine Cummins Air Brake Compressor, Part number: 4938827, comes in new condition and features a twin-cylinder design for reliable air delivery to your vehicle’s braking system. With water-cooling and engine-fed lubrication, it ensures smooth operation and maintains consistent brake performance under heavy loads. Cross reference: 4938827RX.

Why Replacement is Important:

Replacing a worn compressor ensures steady air pressure, preventing brake lag and maintaining system safety.

Impact on Vehicle Performance:

A fully functioning compressor keeps braking responsive and stable, especially when carrying heavy cargo or driving long distances.

Manufacturer Information:

Cummins® is a globally recognized manufacturer of diesel engines and components, celebrated for their durability, reliability, and innovative engineering. Their products are trusted in commercial and industrial vehicles worldwide.

Tags & Category: Twin Cylinder Air Brake Compressor, Air Brake Compressor, Truck Air Compressor, Cummins Air Compressor, 8.9L ISC Air Compressor, 8.9L ISL Air Compressor, Twin Cylinder Truck Compressor

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: 4938827