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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 Direct
Onan
300-C859		 GEN SET CONTROL 56-C859-00 150.00
Onan
300-1073
300-B944
300-4950		 RV GEN SET CONTROL 56-1073-00 120.00
NEW! Onan
300-0679		 ENGINE CONTROL MONITOR (12V) 56-0679-00 160.00
NEW! Onan
300-0680		 ENGINE CONTROL MONITOR (24V) 56-0680-00 170.00
NEW! Onan
300-0681
300-0682
CUMMINS
151-0565		 ENGINE CONTROL MONITOR (12/24 V) 56-0681-82 300.00
Onan
300-1073
HARNESS		 WIRING HARNESS 56-1073-HA 70.00
Onan
300-1073
WITH HARNESS		 COMPLETE ASSBY - BOARD W/WIRING HARNESS 56-1073-00 56-1073-HA 185.00
Onan
300-1006
300-1404
300-1405
300-1540
300-1654		 YD REGULATOR BOARD 56-1540-00
"COMBO" UNIT; REPLACES 4 P/N SHOWN @ LEFT 		170.00
ALSO: WESTERBEKE 21799 YD REGULATOR BOARD 56-1540-00 170.00
MARINE/HARSH ENVIRONMENT ENCAPSULATED YD REGULATOR 56-1540-ME 280.00
Onan
300-2604
300-2605		 ENGINE MONITOR (12V) & (24V) 56-0260-00
(SPECIFY VOLTAGE) 		155.00
NEW! Onan
300-2784
300-2943		 RV GEN SET CONTROL 56-2784-2943 129.00
NEW! Onan
300-3056*
300-3687
300-3950
*Please verify actual board P/N in gen set - many 3056 boards have been upgraded to the 300-3763		 RV GEN SET CONT. 56-3056-00 129.00
NEW! Onan
300-3763
300-5268
 RV GEN SET CONT. 56-3763-00 129.00
NEW! Onan
300-3764
300-5342		 RV GEN SET CONT. 56-3764-00 129.00
NEW! Onan
300-4901		 RV GEN SET CONT. 56-4901-00 129.00
Onan
332-1268		 VR21 REGULATOR 56-1268-00 290.00
Onan
332-1956		 VR21 REGULATOR 56-1956-00 325.00
Onan
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)
NEW! M252612F VR21 SCR PACK 56-1268/1956-SCR 45.00

NEW! Onan 
305-0688

Onan  MARINE VOLTAGE REGULATOR

56-1540-00
(MUST SEND TRAY ASSBY IN - NOT JUST BOARD - FOR IN-HOUSE CONVERSION)

325.00

   Onan
305-0809-01
305-0851*
305-0782-01
305-0826
305-0830-01 

*NOTE: The FS Mod 305 will NOT work correctly in this model gen set: Microlite 4.0 KYFA Spec H

 EMERALD-MICROLITE- MARQUIS SERIES RV GEN SET REGULATOR MODEL 305 200.00
NEW! Onan
305-0809-05		 VOLTAGE REGULATOR FOR BGD, NHD (SPEC A-H) "COMMERCIAL GEN SETS MODEL 305-5 205.00
NEW! Onan
305-0824 		VOLTAGE REGULATOR MODEL 440 295.00
NEW! Onan
305-0826		 Onan MARQUIS VOLTAGE REGULATOR ("EXACT FIT" METAL HOUSING) MODEL 826 265.00
NEW! Onan
305-0897
305-0809-02
305-0852
305-0782-02
305-0745-02 		Onan 2.8 MICROLITE VOLTAGE REGULATOR MODEL 305/2.8 205.00
NEW! Onan
305-0911		 Onan "COMMERCIAL" VOLTAGE REGULATOR (Used in bucket trucks & other commercial vehicles) MODEL 911

265.00
NEW! Onan
305-0982		 VOLTAGE REGULATOR MODEL 460 159.00

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.)