Makita b0500-1351 Trigger Valve Set AT1150A

Product Description

The MAKITA b0500-1351 is a factory replacement trigger valve set designed for the AT1150A pneumatic nailer. The trigger valve assembly controls the air-actuated firing sequence, regulating the release of compressed air that drives the nail into the workpiece. When the original valve wears, leaks, or fails to cycle reliably, this replacement restores proper single-cycle or sequential firing operation. Installation is performed by a pneumatic tool technician or experienced carpenter familiar with pneumatic fastener tool service procedures.

This trigger valve set is a direct-fit service part for the Makita AT1150A coil nailer. It is used in residential and light commercial framing, sheathing, and decking applications where the AT1150A is the primary fastening tool. Replacement is typically indicated by air leakage at the trigger, failure to fire, or erratic cycling during normal operation.

Key Features

• Factory replacement trigger valve set for the Makita AT1150A nailer
• Restores proper pneumatic firing cycle and air seal integrity
• OEM-sourced component engineered to original design tolerances
• Addresses common failure modes including air bypass, valve sticking, and erratic cycling

Compatibility

Designed as a direct OEM replacement trigger valve set for the Makita AT1150A pneumatic coil nailer as stated in the manufacturer part data.

Installation Notes

Disconnect the tool from the air supply and verify zero residual pressure before disassembling the valve housing. Trigger valve service on pneumatic nailers is typically performed by a qualified pneumatic tool technician using standard hand tools. Follow the AT1150A service manual for valve body torque sequences and reassembly order. After reassembly, reconnect air and cycle the tool through several test fires before returning it to service.

Technical Specifications

• Compatible Model: AT1150A
• Component Type: Trigger Valve Set

Standard Information

• Brand: MAKITA
• Manufacturer Part Number: b0500-1351