This part is compatible with 4000, 4100, 4100DG-09, 4100-09 CONTACT US TO INQUIRE ABOUT ANY OTHER PARTS YOU MAY NEED!!! PME REPAIRS WE ARE A TOOL REPAIR SHOP THAT FIXES ALL TYPES OF EQUIPMENT SUCH AS DEMOLITION HAMMERS, CHIPPING HAMMERS, ROTARY HAMMERS GRINDERS, SAWZALLS, DRILLS, NAILERS, ETC (ALL ELECTRICAL TOOLS) GENERATORS / PRESSURE WASHERS GAS SAWS PNEUMATIC TOOLS PIPE THREADERS FLOOR SANDERS / WOOD WORKING TOOLS WELDERS WE ARE AN AUTHORIZED BOSCH SERVICE CENTER WITH BOSCH TRAINED TECHNICIANS AS WELL AS A WARRANTY CENTER FOR THE FOLLOWING BRANDS: HONDA ENGINES GENERAC BRIGGS & STRATTON MK POWER TOOLS MULTIQUIP LINCOLN ELECTRIC WELDERS WE SHIP VIA UPS OR USPS AND RESERVE THE RIGHT TO CHOOSE