Just to make sure the fix for the draw bar staying plugged in is a short (3/8" long) small section of vinyl or plastic tubing (clear) 3/16" ID and 5/16" OD. I got my tubing at Home Depot comes in a small roll. About $5 for the roll. Or you can order the FB0000037 from MTH parts $2 each. I ordered 4 for the locomotives that have this draw bar and plug situation. Using My tubing so far the drawbar as stayed tight running my GS4 SP "4449" perhaps 5 to 6 hours on and off every five to eight minutes around our layout. Very happy with this fix!
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