Authorized STAMFORD® and AvK® Spare Parts

100% Genuine STAMFORD® and AvK® Spare Parts

When it comes to genuine Cummins alternator spare parts for STAMFORD® and AvK® alternators, Ward Leonard is the Authorized Cummins stocking distributor for all of North America (United States, Canada and Mexico.)

We maintain extensive inventory on-hand, for fast, easy and expedited delivery to your location — from voltage regulators and varistor assemblies, to rectifier service kits and rotor earthing brushes — and hundreds of other highly engineered parts.

To order, please call us directly at 1-800-673-0531.


Genuine Cummins Brand Alternator Spare Parts

Call 1-800-673-0531 to Order Your Spare Parts Today

Part Description Part Number
VOLTAGE REGULATOR E000-23412/1P
AVR AS440 E000-24403/1P
SX460-2 AVR COMPLETE E000-24602/1P
AV MOUNT (AS/SX/MX AVR) 450-15971
MX321-2 COMPLETE E000-23212/1P
RECTIFIER SERVICE KIT RSK-2001
RECTIFIER SERVICE KIT RSK-6001
HC4/5 RECT SERVICE KIT (TEXT) RSK-5001
MARKON DIODE HUB ASSY. 240-10335
GREASE (400GRM TUBE) 45-0281
GIEICHRICHTERMODUL NI910058582
RECTIFIER ASSEMBLY KIT UC 45-0428
VARISTOR (MATCHED PAIR) NI910035009-MP
AS480UL KIT E000-14808/1P
MX341UL AVR E000-23408
MX342-2 AVR E000-23422
COSIMAT N+ VOLTAGE REGULATOR NI500048901
VARISTOR ASSY 450-11760/1
VARISTOR ASSY 073-08059
1K OHM POT 071-01649
ROT MET.OXIDE VARIS.Z250J/S3 073-08063
BEARING RTD TYPE 5 070-58083
FUSE-6.3A V/FAST ACTI FF 052-01032
ROTOR EARTHING BRUSH T8.04.097.00
RECTIFIER SERVICE KIT RSK-1101
PF CONTROLLER PFC3 E000-22090
HC5 QUAD DROOP (3PH) 45-0588
HC4 DROOP KIT 45-0583
HC4/5 RECTIFIER ASSY 450-16016
PMG ASSY 45-0341A
HC6/CG6 RECTIFIER ASSY 450-16025
HC5/6/7 QUAD DROOP KIT 45-0691
EBC-1 CONTROL-MODULE (UL) E000-14831
HC7 BRG DE 45-0335
HC7 2B BRG NDE 45-0336
KIT, HTR UPGDE, F2, 3, 110V A040G630
3-PH RECTIFIER ASSY E000-22016
O'RING 051-21784
NDE BRG CARTRIDGE PE734 760-10821
NDE BRG KIT HC4 45-0320
UC27 NDE BEARING KIT 45-0868
P80 NDE BRG KIT 45-0407
MANUAL VOLTAGE REGULATOR 450-11400
D.E. BEARING CARTRIDGE HC7 760-10552
D.E. BEARING KIT UC22 45-0365
NDE BEARING KIT UC22 45-0867
ANTI-VIBRATION MT SX460 AVR 450-15923
FR8 DE BRG CART (6232) M/C 800-10475
NDE BEARING KIT P0/P1 45-0866
NDE BEARING KIT FR8 45-0400
P80 DE BRG 45-0408
SX460 UL AVR KIT E000-24608/1P
HC6 BRG NDE 45-0340
UC27 BEARING D.E. (051-01050) 45-0367
UC27 DROOP KIT 45-0092
* All prices subject to change.

Cummins Support Tech

Personalized Tech Support

Knowing which part you need isn’t always as easy as you might expect. That’s why Ward Leonard provides Authorized Tech Support to help you define exactly what you need to get your alternator back up and running. Much more than a distributor, we’re an Authorized Service & Repair Center that has handled hundreds of alternator projects over the years — and there isn’t a part we don’t know, can’t find, or can’t repair. Call 1-800-673-0531 to discuss your specific part — or any other maintenance and repair — needs.

STAMFORD Alternator Service Guide

Maximize the life of your STAMFORD alternator by following the recommended scheduled service and repair activities in this easy-to-understand guide. Activities include: Commission, Post Commission 250 hours/6 months, 1,000 hours/1 year service, 10,000 hours/2 year service and 30,000/5 year Service Kits for the following models:
  • P0/P1 Alternators
  • UC22/UC27 Alternators
  • HC4/HC5/HC6 Alternators
  • P7 Alternators
  • P80 Alternators
Stamford Alternator Service Guide Cover