John Deere MIA11564 12V 10-Tooth Lawn Mower Tractor Engine Starter Motor

12V, 10-tooth, counterclockwise heavy-duty starter motor, specially designed for heavy-duty landscaping equipment with Kawasaki twin-cylinder engines. It features upgraded permanent magnets and pure copper windings, delivering high torque output to ensure quick and smooth starts in all sorts of extreme hot and cold conditions.

OEM and Search References

• Primary reference: John Deere MIA11564
• Substitute reference: John Deere MIA11980; Kawasaki 21163-0711 / 21163-0714 / 21163-0727 / 21163-7024 / 21163-7034; Denso 428000-7490 / 428000-7491
• Equipment reference: Kawasaki air-cooled V-twin engines (FR / FS / FX series, including FR541V, FS600V and FX600V) in John Deere X300, X304, X320, X324, X500, X534, Z445 and Z645 mowers and utility vehicles
• Buyer search terms: John Deere MIA11564 starter, MIA11980 starter motor, Kawasaki 21163-0711 starter, 10 tooth Kawasaki starter, John Deere X300 starter, Z445 starter, Kawasaki V-twin starting motor

Reference Specifications

• System voltage: 12V, permanent-magnet direct-drive (PMDD) design
• Pinion: 10 teeth, hardened steel
• Power: approximately 0.6 kW
• Rotation: counter-clockwise (CCW), viewed from the pinion end
• Mounting: 2-bolt flange, standard centres; overall length and housing diameter are not published for this number - measure the removed unit before ordering
• Important identification note: the Kawasaki 10-tooth family includes both plain-hole and M8 threaded-hole mounting patterns (the latter used on 21163-0728). The two look alike but do not interchange, so check the hole type and body length against the removed starter.

Fitment and Purchase Checks

Catalog-listed equipment: Kawasaki FR / FS / FX V-twins in the John Deere X-series and Z-series machines listed above. Confirm mower model and serial number, engine model and spec number, existing starter number, voltage, pinion tooth count (10 teeth), rotation, mounting-hole type (plain or threaded), terminal layout and physical dimensions before purchase. Exact MIA11564 length, width and height have not been verified and are omitted.

For Agricultural Buyers and Distributors

This listing is organized for outdoor power equipment procurement teams, repair shops and parts distributors searching by equipment model and OEM reference. John Deere's X-series and Z-series fleet is one of the largest residential and light-commercial installed bases in North America, and the same unit carries both Deere MIA numbers and Kawasaki 21163 numbers, so one SKU answers two catalog lookups. For quotation, specify the mower model, engine details, old-part number, required quantity and destination. Confirm price, stock, package quantity and delivery terms with the seller before placing a purchase order.

Product Positioning

John Deere X300 through X534 tractors and Z445 / Z645 zero-turns run Kawasaki V-twin engines, and their starters sit low on the block where clippings and wash water collect - which is why they fail earlier than the engine. The numbering is confusing in the other direction too: the same unit is sold as Deere MIA11564, MIA11980 and a dozen Kawasaki 21163 numbers, and two different mounting-hole patterns share the 10-tooth gear. This starter reproduces the original 10-tooth steel gear, 2-bolt flange and terminal position, so a workshop replaces the unit as a whole instead of rebuilding one. For distributors, it is a high-turnover item across the Deere X and Z fleet, cross-listed to Kawasaki so the same shelf line serves engine-first buyers.

How It Works: Power and Engagement

The unit is a permanent-magnet direct-drive (PMDD) design: upgraded permanent magnets surround a pure-copper armature, and the 10-tooth gear rides on a Bendix sleeve on the armature shaft, so cranking is immediate when current flows. Turning the key applies battery voltage to the main terminal; the Bendix throws the gear into mesh with the ring gear as the armature accelerates, then retracts once the engine fires - a mechanical sequence with no external solenoid to fail. Rotation is counter-clockwise viewed from the pinion end, matching the Kawasaki flywheel, and the 2-bolt flange holds gear-to-ring-gear clearance exactly as the factory unit did.

Materials and Durability

• Drive gear: 10-tooth hardened steel, sized for the compression of a V-twin rather than a single.
• Magnets: upgraded high-induction permanent magnets, holding strength through heat soak after mowing.
• Windings: pure copper wire for low resistance and strong torque when the battery is only partly charged.
• Brushes and commutator: wear-resistant carbon brushes inside a sealed housing that keeps clippings out.
• Housing: sealed, corrosion-resistant shell built for rain, wash-down and year-round outdoor storage.

Problems It Solves

X-series and Z-series machines usually arrive with one of four complaints. First, a labored crank that barely turns the twin over, from weak magnets or worn brushes. Second, a grinding engagement when the gear no longer reaches full mesh with a worn ring gear. Third, intermittent no-start from arced commutator surfaces after a wet season. Fourth, a starter that spins freely without cranking - a stripped gear or sheared Bendix. Replacing the complete unit clears all four in one step. One caution before ordering: check whether the mounting holes are plain or M8 threaded, and compare body length - the threaded 21163-0728 pattern looks almost identical but will not bolt onto a plain-hole block.

Replacement Value for Shops and Distributors

For repair shops, one correctly matched starter returns a Deere tractor or zero-turn to work the same day, with no drilling, tapping or wiring changes in between. For dealers and distributors, the numbers work: 50-unit minimum order, 7-30 day lead time, 12-month warranty, and unit pricing well below OEM supply channels, leaving room for margin at a competitive shelf price. Production follows ISO 9001 and ISO/TS 16949 practices, and consistent cross-references to Kawasaki 21163-0711, MIA11980 and Denso 428000-7490 keep ordering by catalog number straightforward and returns low.