3687344 | Genuine Cummins® Air Brake Compressor 1 Cylinder for ISX, QSX

SKU: 3687344 MPN: 3687344

Stay in control on every haul with this Genuine Cummins Air Brake Compressor. Part number: 3687344. Condition: new. Compatible with ISX and QSX engines. Designed to deliver dependable braking power for heavy-duty trucks.

$1,299.00
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 3687344 Part Number 3687344
Interchange Part Number 3687343 Interchange Part Number 3687343
Engine Compatibility
Cummins ISX, QSX Cummins ISX, QSX
Specifications
Calculated Volume (dm³) 13.98 Calculated Volume (dm³) 13.98
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
Dimensions
Size (mm x mm x mm) 297.6 x 151.1 x 310.8 Size (mm x mm x mm) 297.6 x 151.1 x 310.8

Useful Information

Description and Purpose:

This Genuine Cummins Air Brake Compressor is a single-cylinder unit designed for ISX and QSX engines. Identified by Part number: 3687344 and in new condition, it features water cooling and engine-supplied lubrication to maintain efficient air generation. With multiple ports including M20 x 1.5, M27 x 2, and M18 x 1.5, it seamlessly integrates into heavy-duty truck braking systems, providing consistent and reliable performance for demanding commercial applications.

Why Replacement is Important:

Replacing worn compressors ensures steady air pressure, preventing brake system malfunctions and maintaining safe truck operation.

Impact on Vehicle Performance:

Supports consistent brake responsiveness, contributing to reliable stopping power and overall vehicle safety under heavy loads.

Manufacturer Information:

Cummins® develops diesel and alternative fuel engines engineered for efficiency, longevity, and heavy-duty applications.

Tags & Category: Air Brake Compressor, Cummins air brake compressor, 1 cylinder air compressor, ISX brake compressor, QSX brake compressor, heavy duty truck compressor, Cummins ISX parts, Cummins QSX parts, commercial vehicle air brake, single cylinder compressor, truck air system, heavy duty braking components, Cummins engine accessories, ISX/QSX air compressor, Cummins truck parts

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: 3687344