25-403-39-S / 25-403-21-S Regulator Rectifier for Kohler 20–30A
$33.95
Skip to product information
25-403-39-S / 25-403-21-S Regulator Rectifier for Kohler 20–30A
$33.95
Aftermarket replacement voltage regulator / rectifier for the listed part-number path and equipment applications.
What’s included
- 1 × replacement voltage regulator / rectifier
Replacement & interchange numbers
25-403-39-S, 25-403-21-S, 25-403-29-S, 25-403-32-S
Measurements & specifications
| Charging-system application listed by supplier | 20–30 A |
|---|---|
| Supplied connection | 3 male blade terminals |
| Overall length shown | 80.6 mm |
| Body height shown | 46.5 mm |
| Mounting-hole spacing | 67.5 mm |
Check engine & equipment fitmentView compatible models, engine codes and application notes
Match the original part number together with the full engine model/specification, equipment serial number, charging-system rating and connector layout. Listed model names can cover more than one charging configuration.
Kohler engine model references
- CH1000
- CH15
- CH18
- CH20
- CH22
- CH23
- CH25
- CH26
- CH430-0023
- CH620
- CH640
- CH670
- CH680
- CH730
- CH740
- CH742
- CH745
- CH750
- CH752
- CH940
- CH960
- CH980
- CV26
- CV640
- CV680
- CV682-3026
- CV730
- CV732
- CV740
- CV742
- CV745
- CV752
- CV940
- CV960
- CV980
- ECH630
- ECH650
- ECH680
- ECH730
- ECH740
- ECH749
- ECH940
- ECH980
- ECV630
- ECV650
- ECV730
- ECV740
- ECV749
- ECV850
- ECV860
- ECV870
- ECV880
- ECV940
- ECV980
- ELH775
- EZT750-3030
- FCV740
- LH690
- LH775
- PCH680
- PCH740
- PCV680
- PCV740
- PCV860-3001
Cub Cadet mower applications
- Recon 60 Koh. CV730 Engine
- Tank SZ-48 Koh. CV680 Engine
- Tank SZ-54 Koh. CV742 Engine
- Tank L48-KH Koh. CV730 Engine
- Tank L60-KH Koh. CV740 Engine
- Tank LZ-54 Koh. CV730 Engine
- M60-KH EFI (53AB5HEX750), with the listed regulator reference.
Confirm the mounting pattern, terminal functions, connector keying and electrical rating before connection. Fitment support before and after purchase.
Shop mower & small-engine voltage regulators · Shop ignition coils · Shop starter motors