Re-listing this 2003 STERLING/FREIGHTLINER SC8000 CARGO CABOVER FLATBED TRUCK Custom and rare Marmon-Herrington 4x4 system! Cummins ISB 5.9 liter 24 Valve with tasteful reliability upgrades! Bulletproof Allison 5-speed automatic transmission! Drives, rides, and brakes extremely well. Plenty of power. Only 16k original miles!
Intent was to convert this truck into an overland expedition camper, but plans have changed due to an overseas move. I don’t want it to sit for years in a pole barn, so would like to find an owner who can use this truck-- preferrably would like to see someone build an overlander, but happy as long as it is being used!
You will not find one with mileage close to this for less than $46,000. Most of these on the market have well over 200,000 miles. Even fewer have the custom 4x4 system and a flatbed.
The engine is the Cummins ISB 5.9L 24V 225hp turbo diesel with the VP44 fuel pump. The engine oil and filter were last changed at 15,700 miles with Valvoline Premium Blue 8600 15W40 and a Fleetguard filter.
The transmission is the reliable Allison MD-3060P. It's known as tough tow/haul trans. Sale will include a filter and three gallons of correct transmission fluid for a service. Currently electronically limited to 5 gears, this transmission has the covetted sixth gear that can be electronically enabled to provide even better high speed cruising and MPG on the highway. The differential gear ratios are 5.65. The tires are 11R22.5 and there are mostly Michelin X. The outer tire on the right rear is a Firestone. All tires have decent tread, but are showing some slight cracking from age.
The rare, but U.S. military-proven, Marmon-Herrington All-Wheel Drive system has the MVG 750/R Series transfer case and functions exactly as it should. For off-highway applications (or snow/ice) the Marmon-Herrington 4x4 system has an optional driver-controlled toggle for the air shift system for the high-low transfer case and an optional driver-controlled toggle for an air activated front differential lock. Front and rear differentials are both Meritor.
The flatbed is a 9’ wide x 14’ long Knapheid cargo flatbed with stake body pockets – truck does not have the stake body sides although they can be found online for reasonable cost. It has a headache rack, however that will need some welding to be perfect, but that shouldn't matter to someone looking to fit it with a habitation box. The rear of the flatbed has a Waltco 2500-pound capacity electric cargo lift which works very well and has a wide folding platform for lifting pallets and other large items. There is no tow hitch, but one could easily be fitted once the cargo lift is removed and sold.
Many of the lights were replaced with LEDs, including the headlights. The headlights are very high-end Trucklite/Rigid brand 7” round headlights that were over $500. They are much brighter and have a great beam pattern compared to the old halogens. All parking lights and signal lights function perfectly, aside from the right turn signal light on the dash which does not illuminate, but the signals and 4-way flashers work. The truck is fitted with an A/C system which works very well. The blower is strong. The heater works well, but the control cables (one that opens the heater core valve and one that closes the vent) both are frozen and likely need replacement to regain HVAC control in the cab.
Upgrades: New engine control management box with stock/original programing done in 2021. At 15,850 miles, fuel system was upgraded with a brand new AirDog II-4G 100 GPH Air/Fuel Separation Lift Pump ($850) which fixes known issues with fueling the VP44 injection pump in the 24V Cummins. This pump was installed with an AirDog Sandwich Mounting Frame Bracket Kit ($130). Six new DDP 75hp Injectors ($800) were installed. A Glowshift fuel pressure gauge ($100) was installed in the dash along with the sensor and sensor wiring, but power is not wired to the gauge. The old 100 gallon steel fuel tank was removed and a brand-new polished aluminum 50-gallon fuel tank was installed on right side with new fuel level sender, new stainless steel fuel tank straps, and new rubber protective padding. All new PTFE stainless steel braded fuel lines and aluminum anodized AN fittings (8AN for fuel supply and 6AN for fuel return) were used for fuel plumbing. Truck comes with everything needed to add a second 50-gallon aluminum tank to the left side (stainless braided PTFE lined fuel line, AN fittings, tank, brackets, straps, strap rubber. I had intended to do this when I was building the overland camper to add capacity for long hauls and to balance the weight from side to side.
The truck has three commercial grade batteries that hold a decent charge, although they are getting a bit older. Truck started great last week after sitting for a few months so the batteries seem to have some life remaining. Needs a replacement plastic battery box cover. They are available online.
This truck has air brakes and the air brake system passes all functions and leak down checks. Brakes feel very solid and strong. The truck also has twin air horns on the roof.
The interior is decent. The seats are excellent. The floor looks good except for a small area on the drivers side that was treated with Eastwood Rust encaspulator. The dash has one vertical light panel/cluster that is only attached to the dash panel on the right side of the steering wheel with some tape. Some plastic bosses that hold screws cracked, allowing the small vertical warning light panel to drop. This is a quick epoxy fix, but the below freezing temps are preventing me from fixing it right now. The headliner is sagging, but it is very high above your head and not a major nussance. This could be easily replaced or refastenned. The most rust on this truck is in the driver’s side door jamb near the edge of the floor. Eastwood rust encaspulator was used on it to prevent spread and it is still structurally sound. It would be a relatively easy sheet metal welding repair in the future and is prudent. There is a dent where the passenger mirror mounts on the outside of the passenger door. The passenger door lock latch on the inside is missing. This is easy to replace. The door interior grab handles are missing, but could be replaced with some fitting with some custom braided paracord door pulls. All glass and mirrors are perfect, aside from some hazing on the right/passenger vertical plexiglass panel forward of the door. The white body paint is in good shape aside from some aging. The parts that I have polished and waxed really come back to life.
The 5.9L Cummins turbo diesel starts up, idles great, and runs great.
The vehicle stands very tall and looks aggressive. It is best described as a civilian version of a military LMTV, with better highway manners and gas mileage. The frame does not have a single bit of rust on it, not even surface rust. The engine and chassis do not show any rust. Most of the rust on this truck is located on the flatbed subframe, although there are no spots of structural concern and most is surface rust.
Maintenance: From 10 to 15k miles, this was a government owned & maintained vehicle. At 15,750 miles, the cooling system was completely flushed with distilled water and then filled with 50/50 distilled water and Extended Life Coolant and the cooling system filter was changed with a Baldwin filter. The suspension, steering, U-joints, brakes, etc. were/are regularly serviced with heavy duty grease. The rear differential has a slight seal leak when warm so likely needs a seal replacement. I just noticed this on the last highway trip and I adjusted my new asking price with this in mind.
The air brake system passes all leak down checks. Tanks are drained and drain plugs are always removed when parking for the night.
There are endless possibilities for this truck and most of its service life remains. Use it for construction, heavy cargo movement, landscaping, put a box on it, etc. But I sure would love to see someone build an offroad expedition camper/overlander.
Truck is located in Woodville, VA (very close to Sperryville and Washington, VA.)
Asking price is 20,500.
Feel free to ask additional questions or schedule a time to see and drive it. Thanks.
The Sterling SC8000 is quite rare, however, for research purposes, these same trucks are also badged as Freightliner FC70 and FC80, Sterling SC7000, Ford CF7000 and CF8000. It is also extensively used by the Indian Army as a cargo vehicle badged as the Ashock Leyland Stallion.
Intent was to convert this truck into an overland expedition camper, but plans have changed due to an overseas move. I don’t want it to sit for years in a pole barn, so would like to find an owner who can use this truck-- preferrably would like to see someone build an overlander, but happy as long as it is being used!
You will not find one with mileage close to this for less than $46,000. Most of these on the market have well over 200,000 miles. Even fewer have the custom 4x4 system and a flatbed.
The engine is the Cummins ISB 5.9L 24V 225hp turbo diesel with the VP44 fuel pump. The engine oil and filter were last changed at 15,700 miles with Valvoline Premium Blue 8600 15W40 and a Fleetguard filter.
The transmission is the reliable Allison MD-3060P. It's known as tough tow/haul trans. Sale will include a filter and three gallons of correct transmission fluid for a service. Currently electronically limited to 5 gears, this transmission has the covetted sixth gear that can be electronically enabled to provide even better high speed cruising and MPG on the highway. The differential gear ratios are 5.65. The tires are 11R22.5 and there are mostly Michelin X. The outer tire on the right rear is a Firestone. All tires have decent tread, but are showing some slight cracking from age.
The rare, but U.S. military-proven, Marmon-Herrington All-Wheel Drive system has the MVG 750/R Series transfer case and functions exactly as it should. For off-highway applications (or snow/ice) the Marmon-Herrington 4x4 system has an optional driver-controlled toggle for the air shift system for the high-low transfer case and an optional driver-controlled toggle for an air activated front differential lock. Front and rear differentials are both Meritor.
The flatbed is a 9’ wide x 14’ long Knapheid cargo flatbed with stake body pockets – truck does not have the stake body sides although they can be found online for reasonable cost. It has a headache rack, however that will need some welding to be perfect, but that shouldn't matter to someone looking to fit it with a habitation box. The rear of the flatbed has a Waltco 2500-pound capacity electric cargo lift which works very well and has a wide folding platform for lifting pallets and other large items. There is no tow hitch, but one could easily be fitted once the cargo lift is removed and sold.
Many of the lights were replaced with LEDs, including the headlights. The headlights are very high-end Trucklite/Rigid brand 7” round headlights that were over $500. They are much brighter and have a great beam pattern compared to the old halogens. All parking lights and signal lights function perfectly, aside from the right turn signal light on the dash which does not illuminate, but the signals and 4-way flashers work. The truck is fitted with an A/C system which works very well. The blower is strong. The heater works well, but the control cables (one that opens the heater core valve and one that closes the vent) both are frozen and likely need replacement to regain HVAC control in the cab.
Upgrades: New engine control management box with stock/original programing done in 2021. At 15,850 miles, fuel system was upgraded with a brand new AirDog II-4G 100 GPH Air/Fuel Separation Lift Pump ($850) which fixes known issues with fueling the VP44 injection pump in the 24V Cummins. This pump was installed with an AirDog Sandwich Mounting Frame Bracket Kit ($130). Six new DDP 75hp Injectors ($800) were installed. A Glowshift fuel pressure gauge ($100) was installed in the dash along with the sensor and sensor wiring, but power is not wired to the gauge. The old 100 gallon steel fuel tank was removed and a brand-new polished aluminum 50-gallon fuel tank was installed on right side with new fuel level sender, new stainless steel fuel tank straps, and new rubber protective padding. All new PTFE stainless steel braded fuel lines and aluminum anodized AN fittings (8AN for fuel supply and 6AN for fuel return) were used for fuel plumbing. Truck comes with everything needed to add a second 50-gallon aluminum tank to the left side (stainless braided PTFE lined fuel line, AN fittings, tank, brackets, straps, strap rubber. I had intended to do this when I was building the overland camper to add capacity for long hauls and to balance the weight from side to side.
The truck has three commercial grade batteries that hold a decent charge, although they are getting a bit older. Truck started great last week after sitting for a few months so the batteries seem to have some life remaining. Needs a replacement plastic battery box cover. They are available online.
This truck has air brakes and the air brake system passes all functions and leak down checks. Brakes feel very solid and strong. The truck also has twin air horns on the roof.
The interior is decent. The seats are excellent. The floor looks good except for a small area on the drivers side that was treated with Eastwood Rust encaspulator. The dash has one vertical light panel/cluster that is only attached to the dash panel on the right side of the steering wheel with some tape. Some plastic bosses that hold screws cracked, allowing the small vertical warning light panel to drop. This is a quick epoxy fix, but the below freezing temps are preventing me from fixing it right now. The headliner is sagging, but it is very high above your head and not a major nussance. This could be easily replaced or refastenned. The most rust on this truck is in the driver’s side door jamb near the edge of the floor. Eastwood rust encaspulator was used on it to prevent spread and it is still structurally sound. It would be a relatively easy sheet metal welding repair in the future and is prudent. There is a dent where the passenger mirror mounts on the outside of the passenger door. The passenger door lock latch on the inside is missing. This is easy to replace. The door interior grab handles are missing, but could be replaced with some fitting with some custom braided paracord door pulls. All glass and mirrors are perfect, aside from some hazing on the right/passenger vertical plexiglass panel forward of the door. The white body paint is in good shape aside from some aging. The parts that I have polished and waxed really come back to life.
The 5.9L Cummins turbo diesel starts up, idles great, and runs great.
The vehicle stands very tall and looks aggressive. It is best described as a civilian version of a military LMTV, with better highway manners and gas mileage. The frame does not have a single bit of rust on it, not even surface rust. The engine and chassis do not show any rust. Most of the rust on this truck is located on the flatbed subframe, although there are no spots of structural concern and most is surface rust.
Maintenance: From 10 to 15k miles, this was a government owned & maintained vehicle. At 15,750 miles, the cooling system was completely flushed with distilled water and then filled with 50/50 distilled water and Extended Life Coolant and the cooling system filter was changed with a Baldwin filter. The suspension, steering, U-joints, brakes, etc. were/are regularly serviced with heavy duty grease. The rear differential has a slight seal leak when warm so likely needs a seal replacement. I just noticed this on the last highway trip and I adjusted my new asking price with this in mind.
The air brake system passes all leak down checks. Tanks are drained and drain plugs are always removed when parking for the night.
There are endless possibilities for this truck and most of its service life remains. Use it for construction, heavy cargo movement, landscaping, put a box on it, etc. But I sure would love to see someone build an offroad expedition camper/overlander.
Truck is located in Woodville, VA (very close to Sperryville and Washington, VA.)
Asking price is 20,500.
Feel free to ask additional questions or schedule a time to see and drive it. Thanks.
The Sterling SC8000 is quite rare, however, for research purposes, these same trucks are also badged as Freightliner FC70 and FC80, Sterling SC7000, Ford CF7000 and CF8000. It is also extensively used by the Indian Army as a cargo vehicle badged as the Ashock Leyland Stallion.
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