B5900 Two-Stage Pump Assy #05C175

Includes flywheel, aftercooler and air filter. If your old B5900 does not have an aftercooler, also purchase the B5900AAK kit.

Note: Also order part number 1312100349 Bushing, which reduces the 1-1/4" female NPT fitting in the bottom of the Aftercooler to 3/4" male NPT.

Specifications

B5900 Pump specs:

• Requirement: a 5HP motor with at least a 7/8" shaft for this pump.
• Swap out your expensive 2 stage pump with this inexpensive steel-sleeved aluminum unit.
• 18 CFM @100psi 16 CFM @ 175 PSI.
• 1/2" FPT outlet. Bolt pattern 6.75 in. front to back 7.5 in. side to side.
• 13.75 in. single belt flywheel.
• Oil capacity: 70 oz
• 1-1/4" FPT on aftercooler outlet.
• Total ht. 16" Min RPM 700 Max RPM 1400 New pump has 1 groove smaller flywheel but will work just fine. Simply run 1 belt and purchase a smaller belt.