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WANT NEW REPLACEMENT ONAN CONTROLS? CLICK HERE
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Onan Generator Controls Rebuilding Services

Onan control board 300-4296

Average turn around 3 days or less. Rebuilds come with one year warranty

  • HOW IT WORKS:
  • Step 1 - Fill out and print our shipping label.
  • Step 2 - Ship your regulator or control board to us.
  • Step 3 - We will contact you when your repairs have been completed and to arrange payment and return shipping.

Need help? Try our troubleshooting guides

download-rv-genset-guide

Onan® RV Gen Set Troubleshooting Guide

download-guide

Onan® Marquis Electronic Governor Troubleshooting Guide

NOTES

  • Part Numbers shown in BOLD also have new replacements IN STOCK for immediate shipment. Click Here for details! (Certain older original Onan boards can no longer be rebuilt due to obsolete relays and are denoted as "NEW ONLY" - we offer replacements for these at the link above)
  • Factory Direct Prices Shown - RE-SELLERS (Gen Set, Marine & RV Dealers/Distributors/Repair Shops) call for your DISCOUNTED PRICING!
  • "P" after price = PLUS PARTS, (Meaning required components over $10 ea are extra charge, will be itemized on the invoice). All other required components and material are included in the Rebuild price at no extra charge.
OEM Part # DESCRIPTION REBUILD SVC. Factory Direct Price  
300B1073 RV GEN SET CONTROL NEW ONLY  
300-C859 RV GENERATOR CONT. NEW ONLY  
300-C731 ENGINE MONITOR $70.00  
300-0590 COMPLETE YD REGULATOR $125.00 P
300-0632 ANNUNCIATOR CONTROL $125.00  
300-0646 ANNUNCIATOR CONTROL $125.00  
300-0679 ENGINE MONITOR NEW ONLY  
300-0680 ENGINE MONITOR NEW ONLY  
300-0681 ENGINE MONITOR NEW ONLY  
300-0682 ENGINE MONITOR NEW ONLY  
300-0714 CYCLE CRANKER $85.00  
300-0715 CYCLE CRANKER $85.00  
300-0730 ENGINE CONTROL $85.00  
300-0731 ENGINE MONITOR $85.00  
300-0734 AMPLIFIER $60.00  
300-0740 LOAD SENSOR CONTROL $75.00  
300-0747 LOAD SENSOR AMPLIFIER $70.00  
300-0749 ALARM / ANNUNCIATOR $140.00 P
300-0780 ATS VOLTAGE SENSOR $85.00 P
300-0793 BATTERY FLOAT CHARGER $90.00  
300-0794 BATTERY FLOAT CHARGER $90.00  
300-0796 AUTO. TRANSFER SWITCH $90.00  
300-0797 AUTO. TRANSFER SWITCH $90.00  
300-0847 VOLTAGE MODULE $60.00  
300-0848 AUTO. TRANSFER SWITCH $90.00  
300-0921

TIME DELAY MODULE
New Replacement Also Available

$90.00  
300-0922

TIME DELAY MODULE
New Replacement Also Available

$90.00  
300-0924 AUTO. TRANSFER SWITCH $90.00  
300-0926 AUTO. TRANSFER SWITCH $90.00  
300-0927 AUTO. TRANSFER SWITCH $90.00  
300-0935 AUTO. TRANSFER SWITCH $70.00 P
300-0944 RV GEN SET CONTROL NEW ONLY  
300-0953 ENGINE MONITOR $85.00  
300-0954 SHUTDOWN CONTROL $85.00
300-0955 REMOTE INDICATOR $85.00  
300-0956 CYCLE CRANKER $85.00  
300-0957 START DISCONNECT $100.00  
300-0958 START DISCONNECT $100.00  
300-0962 CYCLE CRANKER $90.00  
300-0964 SHUTDOWN CONTROL $90.00  
300-0977 CYCLE CRANKER $25.00  
300-0987 AUTO. TRANSFER SWITCH $40.00  
300-1006 YD REGULATOR BOARD
New Replacement Also Available
$95.00 P
300-1059 START/STOP TIME DELAY $135.00  
300-1072 AUTO. TRANSFER SWITCH $85.00  
300-1073 RV GEN SET CONTROL NEW ONLY  
300-1188

AUTO. TRANSFER SWITCH
New Replacement Also Available

$85.00  
300-1227 GEN SET CONTROL $85.00  
300-1339 VOLTAGE SENSOR $70.00  
300-1404 YD REGULATOR BOARD
New Replacement Also Available
$95.00 P
300-1405 YD REGULATOR BOARD
New Replacement Also Available
$95.00 P
300-1540 YD REGULATOR BOARD
New Replacement Also Available
$95.00 P
300-1573 CYCLE CRANKER $125.00  
300-1574 START DISCONNECT $125.00  
300-1576 MONITOR $125.00  
300-1577 MONITOR $140.00  
300-1578 SHUTDOWN CONTROL $125.00  
300-1579 START / STOP BOARD $125.00  
300-1585 START / DISCONNECT $95.00  
300-1586 CYCLE CRANKER $95.00  
300-1587 5-LIGHT MONITOR $95.00  
300-1588 SHUT DOWN CONTROL $95.00  
300-1590 MOTHER BOARD $95.00  
300-1654 YD REGULATOR BOARD
New Replacement Also Available
$95.00 P
300-1784 AUTO. TRANSFER SWITCH $70.00  
300-1896 ENGINE MONITOR $165.00  
300-1938 CONTROL MOTHER BOARD $230.00  
300-1940 CONTROL MOTHER BOARD $230.00  
300-1961 SENSOR START CARD $125.00  
300-1964 PHASE ANGLE SENSOR CARD $125.00  
300-1965 FREQUENCY SENSOR CARD $125.00  
300-2109 MOTHER BOARD $230.00  
300-2232 BATTERY REGULATOR $60.00  
300-2372 TIME DELAY MODULE $125.00  
300-2375 UNDERVOLTAGE MONITOR $125.00  
300-2453 ENGINE MONITOR $230.00  
300-2510 ENGINE MONITOR $230.00  
300-2603 ANNUNCIATOR DISPLAY $135.00 P
300-2604 ENGINE MONITOR
New Replacement Also Available
$95.00  
300-2605 ENGINE MONITOR
New Replacement Also Available
$95.00  
300-2615 500 KW BOARD $195.00 P
300-2737 ALARM ANNUNCIATOR $195.00  
300-2751 ALARM ANNUNCIATOR $175.00  
300-2758 UNDERVOLT-FREQ-OVERVOLT $165.00  
300-2784 RV CONTROL *Relays used on Onan version very pricey - repair total will likely exceed price for our NEW REPLACEMENT $85.00* P
300-2807 ENGINE MONITOR 12V
New Replacement Also Available
$185.00  
300-2808 ENGINE MONITOR 24V
New Replacement Also Available
$185.00  
300-2809 ENGINE MONITOR 12V
New Replacement Also Available
$185.00  
300-2810 ENGINE MONITOR 24V
New Replacement Also Available
$185.00  
300-2811 ENGINE MONITOR 12V
New Replacement Also Available
$185.00  
300-2812 ENGINE MONITOR 24V
New Replacement Also Available
$185.00  
NEW
300-2880
PC ASSEMBLY REGULATOR
New Replacement Also Available
$175.00 P
300-2936 MOTHER BOARD W/O CONT. $230.00  
300-2939 TRANSFER SWITCH CONTROL $70.00 P
300-2943 RV CONTROL *Relays used on Onan version very pricey - repair total will likely exceed price for our NEW REPLACEMENT $85.00* P
300-2946 CHARGER BOARD $90.00  
300-2955 TRANSFER SWITCH CONT $90.00  
300-2977 REGULATOR $175.00 P
300-2993 UNDERVOLTAGE MONITOR $125.00  
300-3036 TIME DELAY MODULE $125.00  
300-3056 RV CONTROL BOARD
New Replacement Also Available
$85.00 P
300-3090 CONTROL MOTHER BOARD $230.00  
300-3093 CONTROL BOARD $125.00  
300-3094 TIME DELAY CONTROL $165.00  
300-3115 CONTROL BOARD $85.00  
300-3121 UNDERVOLTAGE BOARD $125.00  
300-3160 CHARGER CONTROL BOARD $125.00  
300-3244 BATT CHGR CONT BOARD $125.00  
300-3261 TIME DELAY CONTROL $165.00  
300-3344 PRE-HEAT BOARD $50.00  
300-3595 BATT CHGR CONT BOARD $125.00  
300-3623 24V ENGINE MONITOR $165.00  
300-3687 RV CONTROL BOARD
New Replacement Also Available
$85.00 P
300-3763 RV CONTROL BOARD
New Replacement Also Available
$85.00 P
300-3764 RV CONTROL BOARD
New Replacement Also Available
$85.00 P
300-3950 RV CONTROL BOARD
New Replacement Also Available
$85.00 P
300-3953 CONTROL MOTHER BOARD $230.00  
300-4072 MOTHER BOARD $120.00  
300-4054 2-3 WIRE CONVERTER $100.00 P
300-4083 ENGINE INTERFACE CONTROLS $200.00  
300-4111 24V RELAY ASSBY BOARD $100.00  
300-4294 ENGINE MONITOR 12V
New Replacement Also Available
$185.00  
300-4295 ENGINE MONITOR 24V
New Replacement Also Available
$185.00  
300-4296 ENGINE MONITOR 12V
New Replacement Also Available
$185.00  
300-4297 ENGINE MONITOR 24V
New Replacement Also Available
$185.00  
300-4456 RV GEN SET CONTROL
New Replacement Also Available
$85.00  
300-4462 CUSTOMER INTERFACE CONTROLS $200.00  
300-4486 START/DISCONNECT BOARD $75.00  
300-4508 ANNUNCIATOR ASSEMBLY $200.00  
300-4750 ATS CONTROL $325.00 P
300-4754 ATS CONTROL $325.00 P
300-4901 RV CONTROL BOARD
New Replacement Also Available
$70.00 P
300-4902 RV CONTROL BOARD $70.00 P
300-5046 CONTROL/REGULATOR*
*This repair is subject to longer than normal repair times due to repair process.
$165.00  
300-5047 CONTROL/REGULATOR*
*This repair is subject to longer than normal repair times due to repair process.
$420.00  
300-5268 RV CONTROL (Encapsulated) $130.00 P
300-5299 RV GEN SET CONTROL
New Replacement Also Available
$85.00  
305-0589 YD REGULATOR COMPLETE $125.00 P
305-0590 YD REGULATOR COMPLETE $125.00 P
305-0812 BATTERY FLOAT CHGR 12V $270.00 P
305-451 REGULATOR $125.00 P
305-532 YD REGULATOR COMPLETE $125.00 P
305-0688 MARINE VOLTAGE REGULATOR
(Conversion/upgrade– must
send complete metal tray assembly)
$325.00  
305-0809-01 EMERALD VR NEW ONLY  
305-0826 MARQUIS VR NEW ONLY  
305-0851 MICROLITE VR NEW ONLY  
327-1413 CONTROL/REGULATOR $165.00  
332-1160 VR REGULATOR $250.00 P
332-1264 VR REGULATOR $140.00 P
332-1268 VR REGULATOR $140.00 P
332-1288 VR REGULATOR $250.00 P
332-1491 AUTO. TRANSFER SWITCH $70.00 P
332-1956 VR21 BOARD $140.00 P
332-1981 VR21 BOARD $140.00 P
332-2030 VR21 BOARD $140.00 P
332-2031 VR REGULATOR $140.00 P
332-2044 VR21 BOARD $140.00 P
332-2045 VR21 BOARD $140.00 P
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Customer Service 800-403-3728 | FAX 800-333-9912
All other calls 717-932-9900 | Fax 717-932-9925
505 Fishing Creek Rd. Lewisberry, PA 17339
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