The crankshaft position sensor (CKP) on a 1989 Jeep Wrangler (with the 4.2L six-cylinder engine) is located on the
passenger side of the engine block, near the bellhousing. It's usually mounted fairly low down. You'll likely need to get under the Jeep to see it clearly.
However, the exact location can vary slightly depending on the specific model and any modifications. A repair manual or a diagram specific to your Jeep's year and engine would provide the most accurate placement.
