Not exactly. The body styles are different. A 1991 Jeep Wrangler is a YJ as a 1999 is a TJ. t
no no. the shape is slightly different, and the mounting brackets are very different.
It shoud fit but, the wiring for the wiper is not compatible.
A hard top or soft top?
No.
So what is the question about your 1991 Wrangler horn?
Yes
Yes
Yes.
no
my jeep wrangler is starting to have a hard time to start in the mornings? my jeep wrangler is starting to have a hard time to start in the mornings?
Yes, it should work, your body style is TJ, all TJ parts interchange.
A 1991 Jeep Wrangler uses DOT 3 brake fluid.