Dynabrade 54938 Spindle Lock Plunger Assembly

The Dynabrade 54938 is a genuine OEM replacement spindle lock plunger assembly designed for Dynabrade Rebel series right-angle grinders and sanders. This critical component is part of the spindle lock mechanism that secures the spindle during wheel changes and tool maintenance.

Key Features:

• Genuine Dynabrade OEM replacement part
• Includes 96156 O-ring for proper sealing
• Works with spring (98285) and spindle lock bushing assembly
• Designed for easy installation when rotated to prevent O-ring damage
• Compatible with Dynabrade Rebel 2.8 hp grinder/sander models

Compatible Models:

• 53280 - 7" Right-Angle Grinder
• 53282 - 9" Right-Angle Grinder
• 53271 - Right-Angle Grinder/Sander
• 53273 - Right-Angle Grinder/Sander
• Other Rebel series models (refer to parts diagram)

This plunger assembly is positioned between the spring and spindle lock bushing in the tool housing. During installation, apply a small amount of Dynabrade Air Lube 10W/NR or gear oil to the O-ring and plunger for smooth operation and proper sealing. Regular maintenance of this component ensures reliable spindle locking function for safe wheel changes.