CAC-4003-1 Air Compressor Pump Twin Cylinder Oil Lubricated

Reference Item Only
Part Number
CAC-4003-1
Part Number: CAC-4003-1
Compatible Brands: Craftsman, Sears

The Sears Craftsman CAC-4003-1 Air Compressor Pump was manufactured by DeVilbiss Air Power Company for many years on their line of twin-cylinder oil lubricated air compressors.


This CAC-4003-1 Compressor pump came in both a 2 7/8 Inch Bore and a 2  3/4 Inch Bore Pump and was used on many air compressors manufactured by DeVilbiss.

if you have the 2 3/4 Inch bore the piston rings are no longer available and the 2 7/8 inch ring will need to be filed to achieve a .002 ring end gap


Torque Specifications
HEAD BOLTS & STUDS:25-30 Ft.Lbs
REED VALVE SCREWS:13-17 In.Lbs
CONNECTING ROD BOLTS:7-10 Ft.Lbs
CRANKSHAFT END PLATE BOLTS:9-12 Ft.Lbs
BASE BOLTS:9-12 Ft.Lbs
FLYWHEEL:15-20 Ft.Lbs

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