Specifications include, but are not limited to: The intent of this specification to describe a four-wheel drive commercial mower with 72” front mount, rear discharge mower deck. The mower shall be of a heavy-duty type construction for use in rough and uneven terrain for mowing behind guardrail and other roadside areas. The mower shall be standard production of the latest model with standard accessories and in addition meet or exceed the following minimum specifications: 1. Engine a. Liquid cooled, diesel b. 37 hp net minimum at rated rpm c. Oil pressure lubricated d. Spin-on throw-away type oil filter e. Air cleaner dual element f. Cold weather starting aid g. Muffler h. Throttle i. 16 gallon fuel capacity 2. Drive a. Hydrostatic, two speed b. Two pedal foot controlled c. Oil cooler