F 450 4WD Super Duty V10-6.8L VIN D (2004)
3. Install and connect the front auxiliary heater inlet line(s) through the fender well.
4. Install the auxiliary line brackets and loosely install the nuts.
5. CAUTION: Use a wrench on each side of the fitting to prevent damage to the fitting.
Connect the two auxiliary heater inlet lines.
6. CAUTION: Use a wrench on each side of the fitting to prevent damage to the fitting.
Connect the two auxiliary heater outlet lines.
