PARTS UNLIMITED OEM REPLACEMENT STARTER / NATURAL / KTM/POLARIS

§ 01 / Part

21100684 OEM REPLACEMENT STARTER / NATURAL / KTM/POLARIS

Fits 26 bikes
RRP £136.43 Save 20%
£109.14

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 21100684

Authorised stockist

PARTS UNLIMITED

14-day returns

Easy & hassle-free

Secure checkout

256-bit encryption

§ 02 / About this part

What it is

The PARTS UNLIMITED OEM REPLACEMENT STARTER / NATURAL / KTM/POLARIS, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

Designed for KTM and Polaris fitments, this starter motor replaces OEM 59040001000 and 78040001000. It is a high-torque unit that mounts directly to the engine cases. Internal magnets and windings are built to withstand the vibration of off-road use. If your bike struggles to crank when hot, the original motor may be failing. This unit provides a reliable fix for electric start issues. Always grease the starter drive splines lightly before sliding the new motor into position on your bike.

§ 03 / Specs

The numbers

Brand
PARTS UNLIMITED
Part number
21100684
Weight
1.11 kg
OEM cross-refs
4011801, 59040001000, 78040001000, SM14-228
VAT
20%

// Fitment

Will it fit your bike?

Fits 26 models · 26 year-bands

* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron Stable — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. Brands you'd find on a paddock workbench — pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere; dirt and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.
Iron Offroad Iron Offroad Iron Offroad Iron Offroad Iron Offroad
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement