I have an Airtex E7091S (installed by PO) in my 87 xj. Had been noisy for almost a year. Replaced the fuel pump with a Carter P74155 with no issues. Fit the frame of the sender unit and the wiring connectors were not a problem. Very quiet now. I've had great success with both Bosch and Carter...
National Seal part number 453063 specs show it's for a 2.047" housing bore & the seal o.d. is 2.051"
Not a perfect fit, but slightly smaller in o.d. than the 2.066" seal in the kits. Less material to remove. Just a thought.
1987 xj. Axle tube I.D. measured 1.972". Chamfered axle tube I.D. with dremel, cleaned axle tube I.D. & polished with emery cloth. Left Bore-Tite coating on O.D. of 11776 CR seal & it installed very nicely.
Renix Crank Position Sensor Part Numbers:
Standard Ignition Parts
PC87 Standard
PC307 High Altitude
Niehoff
SN4118 High Altitude
WA1611 Standard
Wells
SU3015 Standard
SU3014 High Altitude...