Model Numbers: B4900

Repair Parts for the Sanborn B4900 Two-Stage Twin-Cylinder Oil-Bath Air Compressor Pump

• Used on B51-AT18 & 24 units. Also used on some other manufacturers units so model# of pump may vary but parts are the same.

Specifications

• 15cfm @100psi or 13cfm @175psi.
• Footprint is 5.75" frt. to back and 6.75" side to side.
• 13.75" flywheel.
• Comes w/ flywheel & air filter.
• Min RPM 700 Max RPM 1400
• Weight - 29lbs.
• Oil Grade - SAE 40
• Oil Capacity - 44oz.

Extra Details

• Two stage, steel sleeved, aluminum pump used on many units such as Sanborn, Devilbiss, Porter Cable, Coleman Powermate and others.
• Used on B51AT18 & 24 units. Also used on some other manufacturers units.

Manuals

Technical Documents

Pump Torque specs:

• Head Bolts: 165-230 IN/LBS
• Intercooler Bolts: 165-230 IN/LBS
• Cylinder Bolt: 165-217 IN/LBS
• Bearing Cover Bolt: 50-115 IN/LBS
• Oilpan Bolt: 50-60 IN/LBS
• Conrod Bolt: 185-235 IN/LBS
• Flywheel Bolt: 185-235 IN/LBS