Does anyone know the difference between the two part numbers of fuel pressure regulators mounted on the fuel rail that are used in the '91-'96 XJs?
I have a '91 Comanche with an engine from a '95 ZJ and I am unsure which regulator to get since I don't know what the difference is. They appear to be the same and from what I have gathered anything with the regulator on the rail is 39psi...
There are two part numbers available aftermarket, but both list the same '91-'96 4.0 engines as the application suggesting they are interchangeable.
There's no difference that I can figure out, but something must be different if there are two different ones available and the Mopar book lists different parts.
According to the 91-93 Mopar parts book:
5300 5801 (1991 / 1992)
5300 5801 (Up To 1-1-92)
5303 0001 (After 1-1-92)
5303 0001 (1993)
I have a '91 Comanche with an engine from a '95 ZJ and I am unsure which regulator to get since I don't know what the difference is. They appear to be the same and from what I have gathered anything with the regulator on the rail is 39psi...
There are two part numbers available aftermarket, but both list the same '91-'96 4.0 engines as the application suggesting they are interchangeable.
There's no difference that I can figure out, but something must be different if there are two different ones available and the Mopar book lists different parts.
According to the 91-93 Mopar parts book:
5300 5801 (1991 / 1992)
5300 5801 (Up To 1-1-92)
5303 0001 (After 1-1-92)
5303 0001 (1993)
