BROWSE OUR Convoy 12 Volt Semi-Truck Seats 12 Volt CompressorModel Features 30 Degree Seat Tilt Adjustment 90mm (3.5433”) Suspension Stroke Adjustable Air Lumbar (Upper/Lower & Bolsters) Adjustable Mechanical Lumbar Adjustable Damper Adjustable Double Locking Slide Rails Adjustable Seat Cushion Length 60mm (2.36”) Document Map Pocket Heavy Duty 12 Volt Air Suspension High Adjustable Backrest w/integrated Headrest Left & Right Adjustable Armrests Left Side Seat Control Functions Manual Air Height Adjustable 12-Volt Seat Heating & Cooling OPTIONAL 12-Volt Seat & Back Cushion Heater Kit **Convoy Turntable - Swivel with Stops **suitable for Low & High Base models only