278028 - Miller Bobcat/Trailblazer LP Engine Maintenance Kit (Kohler PCH740)

Comprehensive Maintenance for Kohler PCH740 LP Engines

The Miller 278028 Tune-Up & Filter Kit is a critical maintenance package designed specifically for the Kohler PCH740 LP (Liquid Propane) engines found in select Miller Bobcat and Trailblazer welder generators. Regular maintenance is the cornerstone of industrial equipment reliability, particularly for engine-driven welders that operate in harsh, dust-filled environments. This kit consolidates all necessary consumables into one SKU, ensuring that technicians have the correct OEM components to perform a standard service interval without the risk of mismatched parts.

The kit features a high-efficiency 066698 Oil Filter designed to capture contaminants and protect the engine's internal bearing surfaces. For the fuel system, the 278027 Fuel Filter is specifically rated for LP gas applications, ensuring clean fuel delivery and preventing injector or carburetor fouling. Air filtration is handled by a dual-stage system comprising the 230016 Air Filter and the 230017 Air Filter Pre-Cleaner. This combination is essential for welding sites where airborne particulates are common; the pre-cleaner captures larger debris, extending the life of the primary filter and ensuring the engine receives optimal airflow for combustion.

Also included is the 067007 Spark Plug, vital for maintaining efficient ignition and fuel economy in propane-fueled engines. Using genuine Miller and Kohler components guarantees that the parts meet the exact specifications of the manufacturer, preserving the factory warranty and performance standards of the equipment. This kit is strictly for the LP version of the PCH740 engine; operators should verify their engine model and fuel type before installation to ensure compatibility.