Can 4 cylinder be replace with 6 in 1995 jeep wrangler?

Yes, a 4-cylinder engine in a 1995 Jeep Wrangler can be replaced with a 6-cylinder engine, but it's a significant undertaking and not a simple bolt-in swap. You'll need more than just the engine; it's a major modification requiring extensive mechanical knowledge and skills, or the expertise of a qualified mechanic.

Here's why it's complex:

* Engine Mounts: The 6-cylinder engine will require different engine mounts.

* Transmission: The transmission may need to be changed or adapted to fit the 6-cylinder engine. The 4-cylinder's transmission might not be strong enough to handle the increased torque.

* Wiring Harness: The electrical system will need modifications to accommodate the 6-cylinder engine's different sensors and components.

* Driveshaft: The driveshaft length might need adjustment.

* Exhaust System: A new exhaust system will be needed.

* Cooling System: Potential modifications might be required to the radiator and cooling system components.

* Computer/ECU: You might need a different computer or need to reprogram the existing one.

Essentially, you're talking about a significant engine swap, not just a simple replacement. It's a project best left to experienced mechanics familiar with Jeep Wranglers and engine swaps. The cost will be substantial, including the price of the engine, parts, labor, and potential unforeseen complications.