Rare spec – Allison Automatic with RETARDER + Detroit Series 60 (6-cyl). Not a Cummins/LT700 model. Expensive conversion, drives beautifully and very reliable. Price d to sell. was $75k This 2007 Sterling LT9500 HX is a proper heavy-duty tipper with the stronger Detroit Series 60 engine, matched to an Allison Automatic fitted with a hydraulic retarder. If you know Sterlings, you’ll know this combination is extremely rare and far superior to the LT700/Cummins automatics on the market. The retarder provides exceptional downhill control, greatly reduces service brake wear, and eliminates clutch replacements entirely. Perfect for quarry, gravel, earthmoving, or regional work.
