Onan® Replacement Parts – Improved Generator Controls by Flight Systems

In stock: Improved replacements for Onan RV GenSet Control P/N's 300-2784/300-2943, 300-3056/300-3687/300-3950, 300-3763/300-5268 and 300-3764/300-5342

300-4296 replacementOur new replacement controls are backed by a two year warranty and are made in the USA

Online Order Flat Rate Shipping Costs

  • $13.95 Ground Shipping for Domestic US
  • $29 for International Priority Mail Shipping
  • $24 for 2nd Day Shipping
  • $46 for Next Day Shipping
  • Orders placed after 4pm ET will ship the following day

Order by Phone

Toll-Free, Monday – Friday 8am-5pm EST
US/Canada 800-403-3728 / Fax: 800-333-9912
International: 717-590-7330 / Fax: 717-590-7328

NOTES

Flight Systems replacement Onan Generator Parts are warranted to be free of defects for TWO YEARS from date of purchase. Two-Year Warranty applies to units sold after 10/1/04. (Damage caused by voltage spikes, lightning strikes, improper installation, alteration, and failure to maintain generator to factory specs is not covered.)

Improved Replacements for Onan Controls and Voltage Regulators

Scroll down for more part numbers

We manufacture improved replacements for Onan Generator Parts, ranging from older items such as the "Power Drawer" Controller found in 1970 GM motor homes to the regulator for today's popular Emerald and Microlite Series Gen Sets. Our designs feature improved components, heavy duty connectors/terminals, and conformal coating to protect against corrosion.

All Flight Systems replacement Onan generator parts are designed to meet or exceed OEM specifications. We combine over 25 years experience in Generator Controls with our reverse-engineering capabilities to identify and eliminate the common problems found in many original circuit board designs.

Flight Systems offers Dealer Discounts to those who verify they are in the business of servicing and/or selling generator sets or the vehicles they are used in (RV’s, Commercial Vehicles and Boats). Please call.

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OEM Part # Description Flight Systems Part Number
300-B944 RV GENSET CONTROL 56-1073-00 $120
300-C859 GENSET CONTROL 56-C859-00 $150
300-0679 ENGINE CONTROL MONITOR (12V) 56-0679-00 $179
300-0680 ENGINE CONTROL MONITOR (24V) 56-0680-00 $179
300-0681 ENGINE CONTROL MONITOR (12/24V) 56-0681-82 $300
300-0682 ENGINE CONTROL MONITOR (12/24V) 56-0681-82 $300
300-0921 ATS TIME DELAY MODUL 56-0921/0922 $205
300-0922 ATS TIME DELAY MODULE 56-0921/0922 $205
300-1006 YD REGULATOR BOARD 56-1540-00 $225
300-1073 RV GENSET CONTROL 56-1073-00 $122
300-1073
HARNESS
WIRING HARNESS 56-1073-HA $70
300-1073 WITH HARNESS COMPLETE ASSBY - BOARD W/WIRING HARNESS 56-1073-00 56-1073-HA $185
NEW
300-1188
TIME DELAY MODULE 56-1188-00 $205
300-1404 YD REGULATOR BOARD 56-1540-00 $225
300-1405 YD REGULATOR BOARD 56-1540-00 $225
300-1540 YD REGULATOR BOARD 56-1540-00 $225
300-1654 YD REGULATOR BOARD 56-1540-00 $225
300-2604 ENGINE MONITOR (12V) 56-0260-00
(SPECIFY VOLTAGE)
$155
300-2605 ENGINE MONITOR (24V) 56-0260-00
(SPECIFY VOLTAGE)
$155
300-2784 RV GENSET CONTROL 56-2784-2943 $119
300-2807 12V ENGINE CONTROLLER 56-4296-00 $455
300-2808 24V ENGINE CONTROLLER 56-4297-00 $455
300-2809 12V ENGINE CONTROLLER 56-4296-00 $455
300-2810 24V ENGINE CONTROLLER 56-4297-00 $455
300-2811 12V ENGINE CONTROLLER 56-4296-00 $455
300-2812 24V ENGINE CONTROLLER 56-4297-00 $455
300-2880 PC ASSEMBLY REGULATOR 56-2880-00 $549
300-2943 RV GENSET CONTROL 56-2784-2943 $119
300-3056
*Please verify P/N in gen set - many have been upgraded to 300-3763
RV GENSET CONTROL 56-3056-00 $119
300-3687 RV GENSET CONTROL 56-3056-00 $119
300-3763 RV GENSET CONTROL 56-3763-00 $119
300-3764 RV GENSET CONTROL 56-3764-00 $119
300-3950 RV GENSET CONTROL 56-3056-00 $119
300-4066 VR21 REGULATOR*
*Directly Replaces OEM kit with Transformer & Control board
56-1268-00 $325
NEW!
300-4155
RV GENSET CONTROL 56-4155-00 $219
300-4294 12V ENGINE CONTROLLER 56-4296-00 $455
300-4295 24V ENGINE CONTROLLER 56-4297-00 $455
300-4296 12V ENGINE CONTROLLER 56-4296-00 $455
300-4297 24V ENGINE CONTROLLER 56-4297-00 $455
NEW!
300-4320
RV GENSET CONTROL 56-4320-00 $189
NEW!
300-4456
RV GENSET CONTROL 56-5299-00 $179
300-4901 RV GENSET CONTROLLER 56-4901-00 $119
300-4902 RV GENSET CONTROLLER 56-4902-00 $119
NEW!
300-4923
RV GENSET CONTROL 56-4923-00 $209
300-4950 RV GENSET CONTROL 56-1073-00 $120
300-5046 CONTROL/REGULATOR 56-1413-00 $329
300-5268 RV GENSET CONTROL 56-3763-00 $119
NEW!
300-5299
RV GENSET CONTROL 56-5299-00 $179
300-5342 RV GENSET CONTROL 56-3764-00 $119
300-5374 RV GENSET CONTROL 56-5374-00 $329
305-0688 MARINE VOLTAGE REGULATOR
Must send in tray assembly
56-1540-00 $325
305-0745-02 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 $225
305-0782-01 EMERALD-MICROLITE-MARQUIS SERIES RV GENSET REGULATOR MODEL 305 $225
305-0782-02 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 $225
305-0809-01 EMERALD-MICROLITE-MARQUIS SERIES RV GENSET REGULATOR MODEL 305 $225
305-0809-02 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 $225
305-0809-03 50Hz EMERALD SERIES RV GENSET REGULATOR MODEL 305-3 $225
305-0809-05 VOLTAGE REGULATOR FOR BGD, NHD (SPEC A-H) "COMMERCIAL GENSETS MODEL 305-5 $225
305-0824 VOLTAGE REGULATOR MODEL 440 $295
305-0826 MARQUIS VOLTAGE REGULATOR ("EXACT FIT" METAL HOUSING) MODEL 826 $269
305-0826 EMERALD-MICROLITE-MARQUIS SERIES RV GENSET REGULATOR MODEL 305 $225
305-0830-01 EMERALD-MICROLITE-MARQUIS SERIES RV GENSET REGULATOR MODEL 305 $225
305-0851 EMERALD-MICROLITE-MARQUIS SERIES RV GENSET REGULATOR MODEL 305 $225
305-0852 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 $225
305-0866 50HZ MICROLITE SERIES RV GENSET REGULATOR MODEL 305-3 $225
305-0897 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 $225
305-0911 "COMMERCIAL" VOLTAGE REGULATOR (Used in bucket trucks & other commercial vehicles) MODEL 911 $269
305-0982 VOLTAGE REGULATOR MODEL 460 $159
327-1413 CONTROL/REGULATOR 56-1413-00 $329
332-1268 VR21 REGULATOR 56-1268-00 $325
332-1956 VR21 REGULATOR 56-1956-00 $325
332-2045 VR21 REGULATOR 56-2045-00 $290
NOTE: When replacing Onan VR21 Controls, Flight Systems Technical Service recommends replacing the SCR Pack, which we now stock below)
M252612F VR21 SCR PACK 56-1268/1956-SCR $45
WESTERBEKE 21799 YD REGULATOR BOARD 56-1540-00 $225

Information sheets available for these replacement units: 56-C859-00 56-0679-00 56-0680-00 56-0681-82 56-1540-00 56-1268-00 56-1956-00 56-2784-2943 Model 305 Model 826 Model 911