The product is a 1991-1995 Jeep Wrangler YJ 4.0 MANUAL 4x4 Engine Control Computer, specifically the Engine Control Unit (ECU) with the OE/OEM Part Number 56028291. It is designed as a direct replacement for the manual transmission Jeep Wrangler with a 6 Cylinder 4.0L motor. The manufacturer offers a 1-month warranty for this engine computer, ensuring quality and performance for the vehicle.