Specifications

light cluster on the instrument panel, which shall activate when the air cleaner element requires
replacement.
AIR INTAKE PROTECTION
A light duty skid plate shall be supplied for the engine air intake system below the right front side of the
cab. The skid plate shall provide protection for the air intake system from light impacts, stones, and road
debris.
ENGINE EXHAUST SYSTEM
The exhaust system shall be mounted below the frame in the outboard position with the SCR canister in
line rearward of the DPF. The exhaust system shall utilize a 90-degree bend in the exhaust tubing from
the turbo into a side inlet DPF canister that allows the entire system to be pulled forward. The
discharge shall terminate horizontally on the right side of the vehicle ahead of the rear tires.
The exhaust system shall include a diesel particulate filter (DPF), a diesel oxidation catalyst, and a
selective catalytic reduction (SCR) catalyst to meet current EPA standards. The selective catalytic
reduction catalyst utilizes a diesel exhaust fluid solution consisting of urea and purified water to convert
NOx into nitrogen, water, and trace amounts of carbon dioxide. The solution shall be injected into the
system through the decomposition tube between the DPF and SCR.
The system shall utilize 0.07 inch thick stainless steel exhaust tubing between the engine turbo and the
DPF. Zero leak clamps seal all system joints between the turbo and DPF.
The DPF, the decomposition tube, and the SCR canister through the end of the tailpipe shall be
connected with zero leak clamps.
DIESEL EXHAUST FLUID TANK
The exhaust system shall include a molded cross linked polyethylene tank for Diesel Exhaust Fluid
(DEF). The tank shall have a capacity of six (6) usable gallons and shall be mounted on the left hand
side of the chassis frame behind the batteries below the frame.
The DEF tank shall be designed with capacity for expansion in case of fluid freezing. Engine coolant,
which shall be thermostatically controlled, shall be run through lines in the tank to help prevent the DEF
from freezing and to provide a means of thawing the fluid if it should become frozen.
The tank fill tube shall be routed under the rear of the cab with the fill neck and splash guard accessible
in the top rear step.
ENGINE EXHAUST ACCESSORIES