TM 9-2320-386-10 1-6 1-11. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Contd) All ESP vehicles have improved mobility and can traverse all types of roads and cross-country terrain in extreme high or low temperatures and humidity. The trucks are capable of fording hard-bottom water crossings up to 30 inches (76 centimeters) without a deepwater fording kit, and 72 inches (183 centimeters) with the fording kit. Front lifting shackles and vehicle tiedown brackets provide a means of lifting and securing the truck during transport. b. Equipment Features. (1) Engine is a Caterpillar 3116 Air-to-Air After Cooler (ATAAC) diesel, 170 HP, 420 lb-ft (570 N•m), designed to meet or exceed performance require- ments of the 2-1/2-ton ESP vehicle. (2) Automatic transmission is an Allison AT-1545P, 4-speed, which shifts automatically in all forward ranges and requires no operator action uncommon to standard automatic transmission. (3) Transfer case is a Rockwell T-136, 2-speed, which in conjunction with the transmission, provides up to 8 forward and 2 rearward speed ranges to front and rear differentials. (4) Front and rear axles are Rockwell C-240. (5) Wheels are two-piece Motorwheel 20 x 11.00. (6) Tires are Michelin 14.5 R20XL tubeless radials with a minimum life of 10,000 miles (16,090 km). (7) Power assist steering cylinder and drag link are manufactured by Sycon. (8) Central Tire Inflation System (CTIS), designed by CM Automotive Systems, allows the truck operator to monitor and regulate tire pressure from driver’s compartment before and during vehicle operation. (9) Air cleaner element has a capacity of 26.9 hours at 580 cfm (16 m 3 /min) and is manufactured by Nelson.