ANNHOO999 Ignition Switch 6665606 D250 for Bobcat Models – Four-Position, Includes 2 Keys

ANNHOO999 6665606 is a four-position replacement ignition switch (MPN 6665606 D250) supplied with two keys, compatible with a wide range of Bobcat skid steers, track loaders, mini track loaders and several other brands.

This heavy-duty ignition switch is designed as a direct-fit substitute for worn or damaged starters on many compact equipment models. It replicates the original four-stud electrical connections and key profile used across Bobcat model lines and compatible machines from John Deere, New Holland and others, helping restore reliable engine starting and accessory power without rewiring or custom modifications.

Which machines will this ignition switch work with?

The 6665606 D250 switch covers an extensive roster of Bobcat skid steers, track loaders and mini track models as listed by OEM cross-reference numbers. It also matches part numbers used by several other manufacturers, making it a practical spare for mixed fleets.

• Bobcat skid steers: 440, 443, 453, 463, 530–553, 630–653, 730–873 series and more.
• Mini track loaders: MT50, MT52, MT55; Track loader: 864.
• Excavators and compact equipment: models such as 319–323, E16, and other machines using MG641833/31-527 cross-references.
• Also fits New Holland, John Deere, Gradall and Vermeer part number equivalents.

How do I install this replacement ignition switch?

Installation follows standard ignition-switch replacement steps: disconnect battery power, remove dash panel access, swap the old switch out and reconnect the four studs to the matching terminals. No special tools or wiring changes are normally required when replacing a compatible unit.

• Disconnect negative battery terminal before starting.
• Remove dash trim or panel to access the original switch.
• Unfasten four stud connections and transfer to the new switch in the same order.
• Reinstall switch, reassemble dash and reconnect battery; test key positions.

What should I expect from the switch’s functionality and key set?

This is a four-position switch providing OFF, ACCESSORY, RUN and START positions as used on the original equipment. The product ships with two matching keys so you can replace a lost set or keep a spare on hand for service use.

• Four-position key operation for accessory, run and start functions.
• Four electrical studs that mirror OEM terminal layout for plug-and-play swap.
• Two metal keys included so both operator and maintenance can carry keys.
• Constructed to suit heavy equipment dash mounting and vibrations.

Will this part replace my exact OEM number and how do cross-references match?

This replacement covers the OEM 6665606 number and many equivalent references from other manufacturers, making it useful across different brands. Always compare terminal layout, key profile and physical dimensions to confirm compatibility before installing.

• OEM MPN: 6665606 D250 (4-position, 4-stud switch).
• Cross-references: MG641833 (John Deere), S.68213 (Sparex), 9103-3317 (Gradall), 641833 (New Holland), 31-527 (Pollak), 1219 (Vermeer).
• Ships with two keys and is intended as a direct replacement where terminals and key shape match.
• Check model lists and part images to confirm fit with your machine.

Who is this for? This ignition switch is for fleet managers, repair shops and owners of compact construction or agricultural machines who need a durable, direct-fit replacement for a worn or non-functioning ignition. It’s especially useful for service technicians who manage mixed-brand equipment because of its cross-referenced compatibility and simple four-stud electrical hookup. If you require a dependable replacement that preserves the original switch function and comes with two keys, the ANNHOO999 6665606 is engineered to meet those needs.