Box Truck

(2000) Isuzu NPR 4.8L Inline-4 Turbo 4HE1

Fluids

Oil: Rotella T4 15W-40

Filters

Oil: STP S45006

Wiring

Taillight wiring:

   Left: yellow: turn left signal
   Right: green: turn right signal
   Both: white : ground/common to all lights
   Both: black : reverse (also goes to beeper) 
   Both: brown: running lights (also goes to license plate light)
   Both: red: brake lights (we had to replace the fuse) 
   *All of the wires in the tail light harness are labeled underneath the wire loom

Diesel Particulate Filter

DPF Core: Horizon CJF-203-B-HZ DPF system is Cleaire Horizon, now made by ESW CleanTech

Fix list

• Exhaust brake
• Lift gate battery drain
• ---Floor hatch removal---
• Box leaks
• Lift gate landing not flush, bent lip
• Soft brakes
• Steering play

Maintenance Log

7/5/2024, ~249850mi, oil change, fixed broken hose on waste gate actuator

7/5/2026, 252979mi, added 1 gallon of oil

7/5/2026, back-up light short blew fuse for gauge cluster, put transmission in limp mode. Fixed

7/5/2026, blown hose on waste gate again. Fixed

7/6/2026, 253472, replaced rear, right, outside tire that had been scorched in the box fire 🔥

Our box is 210" from the rear bumper edge to the front of the box. Our frame rails are 33.2" measured outside-to-outside edge and 27.9" measured inside-to-inside edge.