1991 Jeep Wrangler YJ 4.0L High Output Engine Wiring Harness | 6-Cylinder OEM

This is a genuine OEM engine wiring harness removed from a 1991 Jeep Wrangler YJ. 1991 was the debut year for the 4.0L High Output (HO) engine, making this harness specific to early multiport fuel injection (MPFI) setups.

Condition Details:

• Donor Vehicle: Pulled from a running and driving 1991 YJ.
• Integrity: Inspected for "YJ typical" issues. No significant melted wires, no brittle/cracked main connectors, and the firewall bulkhead connector is clean.
• Stock Status: This harness remains in factory configuration without the common "hack jobs" often found in older Jeep engine bays.

Fitment Note: Primarily designed for 1991 models. While it may fit 1992-1995 with minor adjustments, 1991 is unique for certain sensor grounds and relay layouts. Please verify your bulkhead pinout before purchasing for non-1991 models.