One New Aftermarket Replacement Bump Head Knob Assembly for Cub Cadet, MTD, Troy-Bilt, and More String Trimmers

This solid trimmer head bump knob assembly is the bottom cap of your string trimmer's cutting head. It secures the line spool in place and allows the trimmer line to advance when tapped on the ground -- a must-have replacement when your bump feed stops advancing line or the original knob cracks or breaks from wear.

Specifications

• Outer Diameter: 1-3/4"
• Thread: 5/16"-18
• Solid top construction
• Material: Durable nylon/plastic
• Poly bagged

Compatible Models

Cub Cadet: ST2020, CS202, CC5075SS, CC4165

MTD / Yard Machines: 130R, 700R, 700rVP, 710R, 720R, 740R, 750R, 765R, 970R, Y28, 2800M, GTE2818, GTS2816

Troy-Bilt: TB10CS, TB15CS, TB20CS, TB20DC, TB21EC, TB22EC, TB26TB, TB32EC, TB415CS, TB475SS, TB50, TB65SS, TB70SS, TB75SS, TB80EC, 130R, 700R, 720R, 750R, 765R

Snapper / Simplicity: 135R, Singer GT2815

Ryobi / AYP / Oregon: CS720R, SS720R

Additional Compatible Models: GTE2818, GTS2816, 135R, 970R

Replaces Part Number(s):

791-153066B, 791153066B, 791-153066, 791153066, 153066, 153066R, 153068, 147153, 791-147153, 101677X, 682069, 4-2076, 42076, 64376, 7042076, 7068049, 7068049YP, 49M-3066L-034, 49M3066K006, 49M3066L034, 49M3066P053, 49M3066P500, 49M3066P553, 49M3066P953, B1WE6, 55-803, 55803

Aftermarket Interchange Numbers

Oregon 55-803, Rotary 7235, OTK20-0404

New aftermarket replacement part - not remanufactured, not used.