Home >  ONAN 300-2453-04 Model 40Dl Engine Monitor Board

ONAN 300-2453-04 Model 40Dl Engine Monitor Board

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Repair Price: $ 668.00

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Purchase Price: $ 0.00 $ 0.00 668.0 USD

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CSL Part Number: 67193
Product Overview: The Model 40DL Engine Monitor Board is a 12V control board used in Onan generator sets to monitor engine parameters and control functions. It manages critical operations including relay control, input signal processing, and system protection through integrated transistor arrays and TVS diode protection circuits. This board is commonly found in Onan ES-series gensets and features terminal strip connections for interfacing with engine sensors and control circuits. The board includes multiple relays for switching operations and requires proper conformal coating for environmental protection in typical generator applications.
Category: Control Board
Manufacturer: ONAN
Manufacturer Synonyms: Cummins
Manufacturer Part Number: 300-2453-04

Service and repair your broken ONAN part


We can repair your ONAN model 300-2453-04 in our facility. Let our skilled technicians get your ONAN back in operation quickly.


Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.

Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.

Step 3 - Ship or mail the box to the address listed on the RMA.

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