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Your First Choice of CDI Box
In many heavy-duty and powersports machines, the CDI ignition system delivers fast, high-voltage spark timing for reliable starts and stable running—the CDI box is the control unit that stores/releases energy and triggers ignition at the correct time.
What a CDI Box Does
A CDI box (ignition unit/module/power pack) manages ignition timing by charging a capacitor and discharging it to the ignition coil, helping your engine:
- start consistently (hot/cold)
- maintain a stable spark at different RPMs
- reduce misfire/stall issues caused by weak or erratic ignition control
Common applications in this category include ATV/UTV, snowmobile, dirt bike/motocross, personal watercraft (PWC), and outboard motors.
CDI Box Fast-Buy Table
Use part number + model/year to match quickly.
| Brand | Equipment Type | Compatible Models / Years (Examples) | Part Number(s) |
| Arctic Cat | UTV | Prowler 650 H1 (2006–2009) | 0824-038 |
| Suzuki | ATV | Quadsport Z400 / LTZ400 (2003–2007) | 32900-07G00 |
| Polaris | ATV/UTV | Hawkeye 300; Ranger 400/500; Scrambler 500; Sportsman 400 | 3089238 / 3090232 |
| Kawasaki | Dirt Bike | KX125 / KX250 (1989–1993) | 21119-1337 / 21119-1406 |
| Yamaha | ATV | Kodiak 400 YFM400FW 4x4 (1993–1995) | 4GB-85540-00-00 |
| Honda | ATV | TRX350FE/FM/TE/TM | 30400-HN5-305 / 30410-HN4-671 |
| Nissan / Tohatsu | Outboard | 40HP / 50HP | 3C8061600 |
| Sea-Doo | PWC | GS / GTS / GTI (MPEM CDI) | 278000916 |
Buying tip: If your listing says CDI / igniter/ignition module/power pack, treat it as a match-by-part-number item—connector style and year range matter as much as the engine size.
Get your machine back to reliable ignition fast—FridayParts offers a broad selection of Circuit Protection & Regulation Parts with clear part-number listings and fitment details, so you can buy the right unit with less guesswork. Browse the products above, match your OEM part number + model/year, and place your order to minimize downtime.
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