The replacement step you need for your 2004 Monaco Dynasty is the Lippert Components Kwikee 35 Series Single Electric Step # LC3691462 based on the number you gave. Let me know if you have any further questions. view full answer...
The Lippert Kwikee 38 Series Electric Step - 1 Step - 4" Drop/Rise - 24" Wide - 300 lbs # LC3723383 are the replacement for the original 38 Kwikee steps you mentioned. You will just want to confirm the step dimensions of 24 by 10-3/4 inches and the mounting dimensions of 25-3/4 wide by 5-3/4 tall by 11-3/8 inches deep. view full answer...
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