It took several years from starting to dream about an expedition camper to the actual decision to get one... ...after deciding to turn dream into reality we spent probably another 5 years of research before buying our STEYR base truck from EXCAP, and the another year before deciding on the cabin builder KRUGXP. The cabin building process took around a year with several iterations of optimizations, from adding a motorcycle rack to installing an outdoor some add-ons like an air condition for the drivers cab or a redesign of the spare tire holder... Our truck has been named after Guhonda, a 500 pound mountain gorilla silverback. We saw this amazing creature close-up-close during a mountain gorilla trekking tour in Rwanda and thought that our STEYR has a similar 'attitude' .

General Information

Manufacturer and model STEYR 12m18
Country United States
Year of manufacture 1987
For sale? no


Engine type Steyr WD 612.74 diesel
Cubic capacity 6.6-liter turbocharged engine
Number of cylinders 6
Horsepower 230 (Original 180)
Torque 630 Nm at 1200 / min
EXCAP Intercooler
Bosch fuel injector
Stainless steel exhaust


Radformel (4x2, 4x4, 6x6, 8x8) 4X4
Wheel base 350
Number of seats 2
Tyre size 14.00R20
Rim size Gabo Split-rim
Type of tyre Continental
Tank capacity 800 Liter PE diesel tanks with sepa filter and heater
Diesel filter yes
8 Gears plus 1 crawler
ZF Gear Box with Gear Reduction (Automatic continually gearbox lubrication upgraded by EXCAP)
Air-suspension seats (EXCAP)
Hydraulic disc brakes
Heated mirrors (EXCAP)
Aircondition (EXCAP)
High flow cyclone air filter system (EXCAP)
Koni shocks (EXCAP)
Stronger cab shocks (EXCAP)
Permanent or manually selectable 4-wheel drive Permanent
Diff locks Locking Differentials: front, center & rear


Manufacturer of the cabin KRUGXP
Inner dimensions (LxWxH) 4580 x 2360 x 2080
Outer dimensions (LxWxH) 4700 x 2480 x 2200
Cabin material PU 60mm
Kind and thickness of insulation 60
Number of beds 3
Windows 4
Subframe 4-Point Subframe
4 Real Glas KrugXP Windows with KCT insect screens
1 KCT Roof Hatch
Electric Insect Screen for entrance door

Floor plan


Material of furniture Real wood veneered facades Oak finish
Dark Grey CORIAN Kitchen Surface

Cooking stove

Cooking stove WEBASTO X100 Diesel Induction cooker with Altitude compensation
Gas installation N/A
MIELE Combi Electric Oven/Microwave

Refrigerator; cool box

Manufacturer and type of fridge / cooler Indel-Webasto (INOX) 195 Liter Fridge with separate freezer compartment

Power supply

Voltage in the chassis 24
Voltage in the cabin 24, 12, 230
110V / 230V in the cabin? no
Inverter Mastervolt MassSine Ultra 24/4000W

Capacity of batteries in the cabin

Capacity of batteries in the cabin 2 x Mastervolt Mli Ultra 24V 5000 Wh
Battery type LithiumIon
Battery charger for cabin batteries Mastervolt ChargeMaster 24V/100A Mastervolt
Battery management MasterVolt

Power generation

Solar capacity 4 x 300 LG Solar panels with 1200Wp total
Solar controller SolarChargeMaster SCM-60 MPPT
Fuel cell no
Power generator No

Heating system

Manufacturer and type of heating system Eberspaecher Hydronic Diesel heater with automatic Altitude compensation
Warm water processing Indel-Webasto Isotherm 25 Liter warm water boiler (230V)
Cab heating Radiator in cabin underneath table
Heated floor in main cabin
Towel Warmer in toilet
Heat Exchanger (Engine Preheat or Cabin & Water Preheat)

Gas system

Explanation of gas system

Water system

Water filtration system 2 Pre-Fill Filters, 1 Seagull Filter for Freshwater
Capacity of fresh water tank(s) 340 Liter
Capacity of waste water tank(s) 180 Liter
Faucet in Bathroom
Rainshower and Handshower in Bathroom
Faucet in Kitchen
DrinkingWater Faucet in kitchen
Outside Shower (Hot/Cold)
Outside Kitchen Faucet (Hot/Cold)


Manufacturer and type of toilet DOMETIC Saneo Cassette toilet with ceramic bowl
Capacity of black water tank N/A

Vehicle accessories

Rear carrier KRUG custom motorcycle carrier with spare tire holder and sand ladder and electric winch
Roof rack EXCAP Roof-rack with 2 cargo boxes
Storage boxes 2 KRUG Custom Boxes behind rear axle - plus storage box in front of right tank
Outside cooking facilities KRUGXP custom outside kitchen with Sink & Electro Induction Cooktop
Awning Omnistor 1200
released 20.12.18 
views 2127 
filled out 100%