Haiouus Camshaft Kit for Briggs & Stratton 793880 Compatible Engines — Includes Gaskets, Oil Seal & Screws

Haiouus camshaft kit that replaces B&S 793880 and related parts, supplied with gaskets, oil seal and fastening screws for small vertical engines and select Toro models.

This camshaft assembly is an aftermarket replacement designed to restore valve timing and engine operation in many Briggs & Stratton and Toro small engines. The kit bundles the camshaft with the essential sealing and fastening hardware so you can replace a worn or damaged camshaft without sourcing multiple parts. It’s intended for vertical-shaft, 4-cycle engines across several horsepower ranges and fits specific Toro riding mower series as listed.

Will this camshaft kit fit my Briggs & Stratton engine model?

The kit is compatible with a broad list of B&S engine model designations and series numbers commonly used in lawn and garden equipment. Check the engine code stamped on the engine block or in your owner’s manual to confirm fit. If your engine number matches any referenced models or the listed engine types, this kit should be a direct replacement.

• Replaces part number 793880 and several legacy numbers included in the compatibility list.
• Fits vertical 4-cycle engine families with codes like 21R7, 31R5, 33R8 and others across 10.5–19HP ranges.
• Cross-references multiple B&S replacement IDs—verify against the engine stamp.

Which Toro lawn tractors and riding mowers are supported?

Several Toro LX and riding mower model ranges use engines that accept this camshaft configuration. If your Toro model appears in the compatibility list, the physical fit and mounting pattern should match, making installation straightforward for technicians or experienced DIYers.

• Compatible with Toro LX426 lawn tractor applications and several Toro part numbers referenced.
• Designed for Toro riding mower models such as those with factory engine codes matching the list.
• Includes gaskets and an oil seal to ensure proper sealing after installation in Toro units.

What components are included and what condition are they in?

The package contains the camshaft plus associated sealing parts and hardware needed for a complete repair. All components are new aftermarket replacements, intended to match the form, fit and function of original equipment where indicated.

• Camshaft machined to OEM-style specifications for valve timing.
• Compression and mounting gaskets (including the referenced 697110 / 272475S equivalents).
• Oil seal included to prevent leaks and a set of fastening screws for installation.

How should I prepare for installation and what should I watch for?

Before installation, confirm the engine model and gather basic tools plus a service manual or torque specs for your engine. Inspect the crankcase, bearings and lobes to ensure no additional damage exists; replacing a camshaft on a damaged crank or lifters can lead to premature failure.

• Verify engine code and lay out the included gaskets, seal and screws before starting.
• Use correct torque values and follow timing set procedures specific to your engine model.
• Inspect oil passages, bearings and lifters for wear; replace any damaged components to avoid repeat repairs.

Who this is for: This Haiouus camshaft kit is aimed at small-engine mechanics, lawn equipment service shops and experienced homeowners who maintain Briggs & Stratton or compatible Toro-powered mowers. It suits anyone needing a complete camshaft replacement with matching gaskets, oil seal and mounting hardware for the specified engine families and Toro models. If you’re unsure about fitment, compare your engine’s stamped model number with the compatibility list or consult a technician before ordering.