SC 1/4 UNF Adaptor (M4x18mm Bolt)

Restore the peak performance of your power plant with SC Engine Spares. Specially engineered for the SC (Super Custom) range of 2-stroke and 4-stroke engines, these factory-spec components are essential for maintaining compression, timing, and fuel efficiency. From precision-lapped piston and liner sets to complete valvetrain assemblies and high-quality gaskets, SC spares provide the exact fit and durability required to keep your engine starting easily and running smoothly.

Key Features:

• Model-Specific Compatibility: Dedicated parts for the entire SC range, including the .46A-S, .52FS, 1.20FS, and the 400 Radial.
• High-Tolerence Engineering: Piston, liner, and crankshaft components machined for minimal friction and maximum longevity.
• Comprehensive Gasket Sets: Ensures a perfect, leak-free seal to maintain consistent crankcase pressure and needle settings.
• Factory Replacement Carburettors: Features the signature SC "Rear Needle" design for safe, easy tuning and reliable throttling.
• Full Valvetrain Support: Replacement rockers, pushrods, and timing gears to restore the crisp sound of an SC 4-stroke.

Maintenance Tip:

When rebuilding an engine, always replace the gaskets and O-rings. Even a microscopic air leak at the carburettor base or backplate can lead to inconsistent idling and lean-running conditions that could damage your new piston and liner.