Description
3558050X - QE338C CUMMINS AIR BRAKE COMPRESSOR - REMANUFACTURED
PART NUMBER(S):
Fleet Products: 3558050X (Remanufactured) | Replaces OE: Holset / Cummins: 3558005, 3558018, 3558050
DESCRIPTION:
Model: Holset QE338C Quiet Economy Cummins Air Brake Compressor
Vehicles: Cummins C Series engine applications, including B and C variants, in heavy-duty trucks, semi trucks, 18 wheelers, and commercial trucks
• Compressor Family: QE Quiet Economy
• Design: Single-cylinder air brake compressor Iron head
• Mounting Style: 2-hole flange mount
• Cooling Method: Water cooled
• Lubrication: Engine supplied
• Drive Type: Engine driven, gear drive
• Discharge Type: Threaded
• Shaft Type: 11-tooth spline, thru-drive
• Bore Diameter: 92.1 mm
• Air Inlet Location: Left
• Air Outlet Location: Rear or front, varies by application orientation
• CFM Output: 13.2–15.2 CFM
• Governor Port: 1/8 in-27 NPT
• Water Port Size: 3/8 in NPT
• Crankshaft Thread: M20 x 1.5
• Required Dryer Line: 065647WL-G
Applications:
Used on Cummins C Series engine applications requiring a Holset QE338C Quiet Economy compressor with 2-hole flange mounting, 11-tooth thru-drive spline, threaded discharge, water-cooled operation, and engine-supplied lubrication. A specific 4-line air dryer 065647WL-G is required to work correctly with the QE compressor’s unloading and control requirements.
CROSS-REFERENCE(S):
3558005, 3558005X, 3558005RX, 3558018, 3558018X, 3558018RX, 3558050, 3558050X, 3558050RX, 3559568K, 3559576K
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Verify Cummins C Series fitment, QE338C model, 2-hole flange mount, and 11-tooth thru-drive spline before installation
✔ Confirm left-side inlet and rear or front threaded outlet orientation against the original compressor
✔ Use required 4-line dryer 065647WL-G for QE compressor unloading and control requirements
✔ Confirm governor port, water port, and external governor setup before installation
✔ Use new installation gaskets and verify air and water ports are clean before startup
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
