I believe it is a FTX500
With a wrench!!
No
19mm
No..maybe a oil filter wrench to remove it, but, install it by hand (HAND TIGHT)
19 mm
18 mm I think.
It is at the lowest point of the engine oil pan and it takes a 15mm wrench to remove it.
I think that is a 14 mm open wrench, not Allen.
You need a 3/8 Allen key.
Use a flared end wrench or crows foot to loosen.
Assuming you mean the engine oil drain plug, a 15mm wrench should do the job.
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