Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukee's website please click here:
Milwaukee Quart Caulk/Adhesive Gun Plunger
Model Number: 44-70-0340
The Milwaukee 44-70-0340 is a genuine OEM Plunger replacement for compatible Milwaukee quart-format caulk and adhesive guns — the drive rod and piston assembly that advances through the barrel to push the caulk or adhesive material out through the gun's nozzle during dispensing operations. The plunger is the active dispensing component of the gun mechanism — the drive mechanism advances the plunger rod through the barrel in controlled increments with each trigger pull, and the piston at the rod's front end presses against the back of the caulk or adhesive material to push it through the nozzle at the controlled flow rate the operator produces through trigger action. When the plunger rod bends from lateral force, the piston wears or deforms from sustained pressure cycling, or the rod's drive interface with the gun mechanism develops wear that causes slipping or uneven advancement, the dispensing action becomes inconsistent and the plunger must be replaced.
Using a genuine Milwaukee OEM plunger ensures the correct rod diameter, piston dimensions, and drive interface geometry for the specific Milwaukee caulk gun model — a plunger with incorrect rod diameter will either bind in the barrel or fail to seal against the material, and incorrect drive interface geometry produces uneven advancement and dispensing inconsistency. Always verify your specific Milwaukee caulk gun model number at milwaukeetool.com before ordering plunger service components, as specifications vary between Milwaukee caulk and adhesive gun models and barrel size configurations.
Features
- Genuine Milwaukee OEM plunger — correct rod diameter and piston for specific gun model
- Restores consistent, controlled material dispensing from trigger to nozzle output
- Replace when rod bends, piston wears, or drive interface causes uneven advancement
- Correct piston dimensions maintain proper barrel seal for consistent dispensing pressure
- Verify caulk gun model at milwaukeetool.com before ordering
Specifications
- Type: Plunger (Drive Rod and Piston)
- Compatible Tools: Milwaukee Quart Caulk/Adhesive Guns (verify model)
Includes
- (1) Milwaukee 44-70-0340 Quart Caulk/Adhesive Gun Plunger
