1998 Spartan Highlander

Overview
The 1998 Newmar Dutch Star is a Class A diesel motorhome produced as a factory-built “diesel pusher” designed for long-distance comfort. Models from that year were offered with a range of factory-installed systems and luxury-oriented interior appointments. Features varied by model and optional packages, but the following describes the common factory-default equipment and construction elements typically found on a 1998 Dutch Star.

Chassis and Drivetrain
- Diesel-pusher layout (rear-mounted engine) built on a commercial motorhome chassis supplied by a major chassis manufacturer (commonly Freightliner or similar).
- Factory engine choices typically included heavy-duty diesel engines from established manufacturers (Cummins and/or Caterpillar were common choices).
- Automatic transmission (Allison automatic transmissions were commonly paired with the diesel engines).
- Heavy-duty suspension designed for coach loads; many coaches included auxiliary or tag axles on larger models.
- Air or power-assisted brakes; anti-lock braking system (ABS) equipment was commonly part of the chassis package.
- Power steering, power-operated entry steps on many units, and large exterior mirrors designed for highway visibility.

Exterior and Construction
- Welded ladder-frame construction with laminated sidewalls, roof and floor assembly for insulation and durability.
- Full-body painted exterior with factory graphics or decals; paint finishes and graphic schemes were part of Newmar’s standard offerings.
- One or more powered slide-outs on many floorplans to expand interior living space; slide mechanisms and seals were factory-installed.
- Large exterior storage compartments (basement storage) with hinged doors and weather seals.
- Roof access ladder and roof-mounted HVAC components.
- Exterior service access panels for generator, batteries, heating/air conditioning and plumbing components.
- Exterior amenities often included an awning, city water fill, shore power inlet and external cable/phone hookups.

HVAC, Heating and Insulation
- Roof-mounted air conditioning unit(s) for coach cooling; many units had one or two roof A/Cs depending on coach length and options.
- Propane-fired furnace for interior heat, with ducting to distribute warm air through the coach.
- Insulated roof and sidewall construction consistent with motorhome standards of the period to moderate interior temperatures.

Electrical and Power Systems
- Onboard generator installed at the factory (Onan generators were commonly used), providing 120V AC power when shore power was not available. Generator fuel type and output varied by configuration.
- Shore power inlet (30-amp or 50-amp service depending on the coach and factory wiring) with shore power cord storage.
- Battery bank(s) for 12V DC coach systems, battery disconnect and charging through a factory-installed converter/charger.
- 12V DC distribution for lights, pumps, vent fans and many appliance controls; 120V AC distribution for household-style appliances when connected to shore power or the generator.
- Factory-installed distribution panel/ breaker panel for AC circuits and fuses for DC circuits.

Plumbing and Water Systems
- Freshwater tank, gray and black water holding tanks sized according to coach length; factory-installed level indicators.
- 12V water pump to pressurize domestic hot/cold water systems.
- Water heater (tank-style, typically capable of operating on propane and 120V AC; some units had 12V element capability) installed in a service compartment.
- City water connection with pressure regulator and, commonly, an exterior wash station.
- Standard marine-style toilet (porcelain or plastic) with macerator or direct-hold plumbing typical for the era.
- Enclosed shower(s) with skylight or vent fan and standard shower fixtures.

Interior Layout and Appointments
- Residential-style living areas with a range of factory floorplans (single-slide or multiple-slide confi