LEFITPA Replacement Bump Knob 791-153066 for Bolens BL100/BL110/BL150/BL160 | 1-3/4" OD x 5/16"-18 Thread

When a trimmer’s bump-feed system falters, a simple part like a bump knob can restore smooth operation without a full tool replacement. The LEFITPA Replacement Bump Knob is designed to slot into Bolens trimmer models BL100, BL110, BL150, and BL160, replacing the common part numbers 791-153066, 791-153066B, and 153066. Built to endure outdoor use, this knob offers a comfortable grip, a robust feel, and a precise thread that aligns with standard bump-feed assemblies. It’s a practical upgrade that you can consider as part of a routine maintenance check, rather than a guaranteed fix for every situation.

Compatibility at a glance

• Part numbers replaced: 791-153066, 791-153066B, 153066
• Models: Bolens BL100, BL110, BL150, BL160
• Dimensions: 1-3/4" OD, 5/16"-18 thread

With the right fit, the knob can help keep your line feeding consistent during edging and trimming tasks. The 1-3/4" outer diameter is chosen to work with many standard bump-feed collars, while the 5/16"-18 thread matches common assemblies. The result is a straightforward swap that preserves the familiar feel you expect when tapping the ground to advance line.

What you get

• 1 x LEFITPA bump knob
• Support for multiple Bolens part numbers: 791-153066, 791-153066B, 153066
• Simple compatibility with Bolens trimmer models reduces replacement guesswork

In real-world use, a reliable bump knob can help you maintain control during line adjustment, reducing downtime and keeping your workflow efficient. The design focuses on a comfortable grip, so longer edging sessions feel less fatiguing, and the component is sized to fit setups that many users already own.

Warranty and support

• 30-day money-back guarantee
• 18-month worry-free warranty
• Responsive customer support for installation questions or compatibility inquiries

Why choose LEFITPA

LEFITPA products emphasize practical, user-focused upgrades that fit common maintenance scenarios. This bump knob offers a durable finish, reliable threading, and a straightforward install path, making it a sensible option for preserving your trimmer’s bump-feed capability. While not a guaranteed repair for every situation, it’s a credible choice to consider when inspecting worn or missing hardware during routine checks.

Installation tips

• Turn off the trimmer and cool the engine before handling parts
• Align the knob with the existing thread and thread clockwise until snug
• Test the bump-feed action in a safe area before resuming work