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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)

Onan Control Board Onan Voltage Regulator

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

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.

Onan Generator Parts

Order by phone:

Ph: 800-403-3728 (Toll-Free US/Canada)
Fax: 800-333-9912 (Toll Free US/Canada)
Monday - Friday 8am-5pm EST.
International Ph: 717-932-9900, Fax: 717-932-9925
(Order MUST be received by 4pm ET for "Same Day" shipment)


Click On Onan Part Numbers Below To View More Details
And Buy Now

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.)