| 2024 Peterbilt 520 | STANDARD |
| Shall be a single frame rail design. | STANDARD |
| Shall be a minimum of 7/16? | STANDARD |
| There shall be no holes or bolts in the top flange of the frame rails. | STANDARD |
| Shall have 2 front tow hooks | STANDARD |
| Shall have a black steel front bumper. | STANDARD |
| Shall be air ride. | STANDARD |
| Shall have at least 21 inches of clear space between the driver and passenger seat. | STANDARD |
| Hour meter | STANDARD |
| Digital outside air temperature gauge. | STANDARD |
| OEM air conditioning | STANDARD |
| Air horn | STANDARD |
| Shall have driver and passenger side heated and motorized west coast style or comparable side mirrors. The mirrors shall be equipped with an additional convex spot mirror. | STANDARD |
| Shall be equipped with electric, intermittent windshield wipers. | STANDARD |
| The interior cab noise level shall meet or exceed FMVSS requirements during normal operating conditions. | STANDARD |
| Shall be equipped with both interior and exterior egress / ingress assist handles on the driver?s side and interior grab handles on the passenger side. | STANDARD |
| Shall be equipped with an AM/FM radio with Bluetooth connection and speakers. | STANDARD |
| Shall be equipped with power windows and door locks. | STANDARD |
| Shall have adjustable steering column / steering wheel. | STANDARD |
| Driver and passenger seat shall be cloth covered high back air ride seats with lumbar support and arm rest. | STANDARD |
| All chassis lighting to include marker lights, clearance lights, backup lights, tail lights, stop lights and turn signals shall be LED with the exception of the headlights. | STANDARD |
| Shall be equipped with a variable sound backup alarm | STANDARD |
| The batteries shall be equipped with a ground cable which will be attached to the frame rail. All cable ends shall be sealed and equipped with rubber retainers and covers. | STANDARD |
| All battery cables exiting the battery box shall be routed through rubber grommets. | STANDARD |
| Shall have pre-trip inspection light test button | STANDARD |
| Shall have a horn alarm that sounds when the vehicle parking brake is not set and the driver's door is opened. | STANDARD |
| Shall be equipped with an industry standard industrial 7 wire ABS trailer connector. | STANDARD |
| The connection points on the 7-wire plug will be sealed and watertight. Both sides of this receptacle shall be packed with dielectric grease. | STANDARD |
| ? The OEM, factory wired switch will prevent operation of the plow lights and headlights simultaneously. | STANDARD |
| Shall be equipped with Hydraulic/ Air Disc Brakes. | STANDARD |
| Maximum road speed to be governed at 65 mph. | STANDARD |
| If Motor horsepower and torque are increased beyond the rating, transmission shall also be changed to match needed ratings. | STANDARD |
| Rear axle ratio shall provide the ability for the truck to achieve a highway speed of 65 MPH. | STANDARD |
| Front wheels shall be aluminum | STANDARD |
| Rear Wheels shall be power coated steel | STANDARD |
| Rear tires shall be sized appropriately to achieve a GAWR of 23,000 lbs. | STANDARD |
| All wheels shall have wheel guards installed on all axles. This will include guards between the hub and the wheel as well as in-between each wheel. (Duals) | STANDARD |
| Lead wheel weights will not be accepted by WSDOT and Tacoma Utilities | STANDARD |
| Front brakes shall be drum and properly sized for the truck's GVWR | STANDARD |
| Rear brakes shall be outboard drum and properly sized for the truck's GVWR | STANDARD |
| All Brake linings shall be non-asbestos | STANDARD |
| The air dryer shall be mounted in a serviceable location and the filter will be a spin on style. This unit will not be located on the left side, inside or outside, frame rail. This area must be left open for WSDOT sanding equipment. | STANDARD |
| Shall have painted aluminum air tanks. | STANDARD |
| Air tanks shall be equipped with a lanyard style drain that is accessible by the driver. | STANDARD |
| Shall be equipped with a tractor protection valve. | STANDARD |
| Shall be equipped with a trailer brake hand control valve. | STANDARD |
| Shall include an operator's manual | STANDARD |
| Shall include free access to online parts manuals and chassis build sheets searchable by VIN number to include cab and chassis, Motor and transmission | STANDARD |