ARO 67445-5 AFX Muffler Kit for AF1230 Piston Pumps

The ARO 67445-5 is a muffler kit tied to the AFX air motor on ARO piston pumps. A muffler quiets the exhaust air released each time the motor shifts and spreads that blast out at the exhaust port. The product notes describe it as a 363 piston pump part.

Mufflers collect oil mist and debris over time. A restricted muffler raises back pressure on the air motor, which can cut cycle speed and output. The kit contents are not broken out in our data. Match the AF1230 model on your pump nameplate to the list below.

Reasons to Replace the Muffler

• Exhaust noise has climbed noticeably.
• A clogged element slows the pump or causes icing at the exhaust.
• The housing or element is cracked or has come loose from the exhaust port.

Piston Pumps That Use This Kit

Five AF1230 models are listed, with and without the -1 suffix:

• ARO AF1230S11PF14
• ARO AF1230S11PF14-1
• ARO AF1230S11FF44
• ARO AF1230S11FF44-1
• ARO AF1230S11HF44-1