Crankcase Replacement 530071991 — Exact Fit for HUS and HUS142 Key benefits Restores engine integrity: replaces worn or damaged crankcase to stop leaks, restore sealing and maintain proper alignment of internal components. Improves performance: an undamaged crankcase helps maintain compression and reduces vibration, delivering smoother operation and better overall engine efficiency. Long-term reliability: made from durable materials engineered to resist wear from regular use, extending the service life of your equipment. Easy, cost-effective repair: designed for straightforward replacement so you can install it yourself without professional help, saving time and service costs. What it is and why you need it Function: direct replacement crankcase (part number 530071991) for maintaining the structural and sealing functions of your engine. Compatibility: specifically engineered for HUS and HUS142 models for an exact fit and reliable performance. Material & build: manufactured from durable materials to withstand repeated use and maintain dimensional stability under normal operating conditions. Performance and fit Exact-fit design ensures proper alignment of crankshaft and internal components, reducing wear and improving power transfer. Upgrading a worn crankcase returns the engine to designed tolerances, helping to prevent secondary damage to bearings, seals and gaskets. Typical applications Field repair after impact or wear: replace a cracked or scored crankcase to get equipment back into service quickly. Routine engine rebuild: use during scheduled maintenance or overhaul to restore original fit and function. Pre-sale or reliability upgrade: fit a new crankcase when preparing equipment for heavy seasonal use or resale to ensure dependable operation. Compatibility summary Part number: 530071991 Fits: HUS and HUS142 models Function: crankcase replacement Benefits: durability, improved engine efficiency, easy installation Replace a compromised crankcase with this exact-fit 530071991 unit to restore performance, reduce downtime and protect your engine from further damage.