Onan ® Generator Parts - Improved Generator Controls by Flight Systems
Now Featuring a 2-Year Warranty and "In-Stock" Guarantee*
Now Available in our line of Improved replacement Onan Generator Parts is the 305-0911 "Commercial" Regulator & Onan 305-0826 Marquis (With Easy Install Exact Fit Metal Housing)
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In stock: Improved Replacements for Onan RV Gen Set Control P/N's 300-2784/2943, 300-3056/3687/3950, 300-3763/5268 & 300-3764/5342
Improved Replacements for Onan Generator Controls and Voltage Regulators
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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.
Order by phone: Click On Onan Part Numbers Below To View More Details
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| OEM Part #s our units replace | Description | FS Replacement Part Number |
Factory Direc($) |
| NEW! 151-0565 |
ENGINE CONTROL MONITOR (12/24 V) | 56-0681-82 | 300.00 |
| 300-B944 | RV GEN SET CONTROL | 56-1073-00 | 120.00 |
| 300-C859 | GEN SET CONTROL | 56-C859-00 | 150.00 |
| 300-0679 | ENGINE CONTROL MONITOR (12V) | 56-0679-00 | 160.00 |
| 300-0680 | ENGINE CONTROL MONITOR (24V) | 56-0680-00 | 170.00 |
300-0681 |
ENGINE CONTROL MONITOR (12/24 V) | 56-0681-82 | 300.00 |
| 300-0682 | ENGINE CONTROL MONITOR (12/24 V) | 56-0681-82 | 300.00 |
| NEW! 300-0921 |
ATS TIME DELAY MODUL | 56-0921/0922 | 199.00 |
| NEW! 300-0922 |
ATS TIME DELAY MODULE | 56-0921/0922 | 199.00 |
| 300-1006 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
| 300-1073 | RV GEN SET CONTROL | 56-1073-00 | 120.00 |
| 300-1073 HARNESS |
WIRING HARNESS | 56-1073-HA | 70.00 |
| 300-1073 WITH HARNESS |
COMPLETE ASSBY - BOARD W/WIRING HARNESS | 56-1073-00 56-1073-HA | 185.00 |
| NEW 300-1188 |
TIME DELAY MODULE | 56-1188-00 | 199.00 |
| 300-1404 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
| 300-1405 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
| 300-1540 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
| 300-1654 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
| 300-2604 | ENGINE MONITOR (12V) & (24V) | 56-0260-00 (SPECIFY VOLTAGE) |
155.00 |
| 300-2605 | ENGINE MONITOR (12V) & (24V) | 56-0260-00 (SPECIFY VOLTAGE) |
155.00 |
| 300-2784 | RV GEN SET CONTROL | 56-2784-2943 | 129.00 |
| NEW! 300-2807 |
12V ENGINE CONTROLLER | 56-4296-00 | 499.00 |
| NEW! 300-2808 |
24V ENGINE CONTROLLER | 56-4297-00 | 499.00 |
| NEW! 300-2809 |
12V ENGINE CONTROLLER | 56-4296-00 | 499.00 |
| NEW! 300-2810 |
24V ENGINE CONTROLLER | 56-4297-00 | 499.00 |
| NEW! 300-2811 |
12V ENGINE CONTROLLER | 56-4296-00 | 499.00 |
| NEW! 300-2812 |
24V ENGINE CONTROLLER | 56-4297-00 | 499.00 |
| 300-2943 | RV GEN SET CONTROL | 56-2784-2943 | 129.00 |
| 300-3056 *Please verify board P/N in gen set - many 3056 have been upgraded to 300-3763 |
RV GEN SET CONT. | 56-3056-00 | 129.00 |
| 300-3687 | RV GEN SET CONT. | 56-3056-00 | 129.00 |
| 300-3763 | RV GEN SET CONT. | 56-3763-00 | 129.00 |
| 300-3764 | RV GEN SET CONT. | 56-3764-00 | 129.00 |
| 300-3950 | RV GEN SET CONT. | 56-3056-00 | 129.00 |
| NEW! 300-4294 |
12V ENGINE CONTROLLER | 56-4296-00 | 499.00 |
| NEW! 300-4295 |
24V ENGINE CONTROLLER | 56-4297-00 | 499.00 |
| NEW! 300-4296 |
12V ENGINE CONTROLLER | 56-4296-00 | 499.00 |
| NEW! 300-4297 |
24V ENGINE CONTROLLER | 56-4297-00 | 499.00 |
| NEW! 300-4901 |
RV GEN SET CONT. | 56-4901-00 | 129.00 |
| 300-4950 | RV GEN SET CONTROL | 56-1073-00 | 120.00 |
| 300-5268 | RV GEN SET CONT. | 56-3763-00 | 129.00 |
| 300-5342 | RV GEN SET CONT. | 56-3764-00 | 129.00 |
| 305-0688 | MARINE VOLTAGE REGULATOR | (MUST SEND TRAY ASSBY IN - NOT JUST BOARD - FOR IN-HOUSE CONVERSION) | 325.00 |
| 305-0745-02 | 2.8 MICROLITE VOLTAGE REGULATOR | MODEL 305/2.8 | 205.00 |
| 305-0782-01 | EMERALD-MICROLITE-MARQUIS SERIES RV GEN SET REGULATOR | MODEL 305 | 200.00 |
| 305-0782-02 | 2.8 MICROLITE VOLTAGE REGULATOR | MODEL 305/2.8 | 205.00 |
| 305-0809-01 | EMERALD-MICROLITE-MARQUIS SERIES RV GEN SET REGULATOR | MODEL 305 | 200.00 |
| 305-0809-02 | 2.8 MICROLITE VOLTAGE REGULATOR | MODEL 305/2.8 | 205.00 |
| 305-0809-05 | VOLTAGE REGULATOR FOR BGD, NHD (SPEC A-H) "COMMERCIAL GEN SETS | MODEL 305-5 | 205.00 |
| NEW! 305-0824 |
VOLTAGE REGULATOR | MODEL 440 | 295.00 |
| 305-0826 | MARQUIS VOLTAGE REGULATOR ("EXACT FIT" METAL HOUSING) | MODEL 826 | 265.00 |
| 305-0826 | EMERALD-MICROLITE-MARQUIS SERIES RV GEN SET REGULATOR | MODEL 305 | 200.00 |
| 305-0830-01 | EMERALD-MICROLITE-MARQUIS SERIES RV GEN SET REGULATOR | MODEL 305 | 200.00 |
| 305-0851 *NOTE: The FS Model 305 will NOT work in : Microlite 4.0 KYFA Spec H |
EMERALD-MICROLITE-MARQUIS SERIES RV GEN SET REGULATOR | MODEL 305 | 200.00 |
| 305-0852 | 2.8 MICROLITE VOLTAGE REGULATOR | MODEL 305/2.8 | 205.00 |
| 305-0897 | 2.8 MICROLITE VOLTAGE REGULATOR | MODEL 305/2.8 | 205.00 |
| 305-0911 | "COMMERCIAL" VOLTAGE REGULATOR (Used in bucket trucks & other commercial vehicles) | MODEL 911 | 265.00 |
| NEW! 305-0982 |
VOLTAGE REGULATOR | MODEL 460 | 159.00 |
| 332-1956 | VR21 REGULATOR | 56-1956-00 | 325.00 |
| 332-2045 | VR21 REGULATOR | 56-2045-00 | 325.00 |
| 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 | 45.00 |
| WESTERBEKE 21799 | YD REGULATOR BOARD | 56-1540-00 | 170.00 |
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).
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.
Information sheets available for these replacement units - click on the item to view the .pdf file (Acrobat Reader required): 56-C859-00 56-0679-00 56-0680-00 56-0681-82 56-1540-00 56-0260 56-1268-00 56-1956-00 56-2784-2943 Model 305 Model 826 Model 911
*Warranty 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 under our warranty.)





