Haiouus Camshaft Kit for Briggs & Stratton/Toro Vertical Engines — 793880 Replacement with Gaskets & Oil Seal

Haiouus camshaft kit 793880 is a complete replacement assembly that includes camshaft, gaskets, oil seal and fastening screws for compatible Briggs & Stratton and Toro small engines. This kit is engineered to restore valve timing and restore reliable operation for a range of 4-cycle vertical engines used in lawn tractors and riding mowers. It replaces multiple OEM numbers (including 84005207, 793583, 792681 and others) and bundles the necessary seals and fasteners so you won’t need to source extra parts. The listing covers model fitments, included components, and practical considerations for installation and maintenance.

Which engines and models does this camshaft kit fit?

The kit is designed for many Briggs & Stratton-style vertical engines and is cross-referenced to Toro applications such as LX426 and specific riding mower part numbers. Fitment spans small-engine families and intake-series vertical engines, covering popular horsepower variants from about 10.5HP up to 19HP.

• Compatible with Toro LX426 and riding mower part numbers 74433, 74573, 74582, 71252, 71253.
• Referenced engine models include 210702, 214707, 215802 and many 21x/31x/33x family engines.
• Fits engine codes like 21R7/21R8 and 31R5 through 33R8 across intake-series vertical engines.

What parts are included and what OEM numbers does it replace?

The package contains the camshaft itself plus gaskets, an oil seal and fastening screws to allow direct replacement in the referenced engines. The kit is intended as a one-stop replacement for several listed OEM part numbers so you can perform a timely repair without missing components.

• Included parts: camshaft, 272475S gasket, 697110 gasket, 795387 oil seal and fastening screws.
• Cross-replaces OEMs: 84005207, 793880, 793583, 792681, 791942, 795102 and related seals/numbers.
• Oil seal references: replaces items like 791892/690947/499145 for proper crank-bore sealing.

How difficult is installation and what should I check during replacement?

Installation difficulty ranges from moderate to advanced depending on your experience with small engines; basic mechanical tools and a service manual are recommended. During replacement, verify timing marks, torque fasteners to specification, and inspect surrounding components such as lifters and bearings for wear to avoid rework.

• Use factory torque specs for bolts and follow cam timing alignment procedures in your service manual.
• Inspect pushrods, lifters and valve train components; change worn parts to prevent early failure.
• Replace gaskets and the oil seal included in the kit to ensure leak-free reassembly.

Will this kit restore engine performance and what are the limitations?

Replacing a worn or damaged camshaft with this kit restores correct valve timing and sealing, which can eliminate rough running due to cam wear or damaged seals. However, performance also depends on the condition of other engine systems—valves, piston rings, carburetion and ignition must be serviceable for full restoration.

• Restores cam geometry and sealing when installed correctly with matched components.
• Does not include valvetrain wear parts like lifters or rockers; inspect those separately.
• Best used as part of a broader engine diagnostic if multiple symptoms exist.

This camshaft kit is intended for DIY mechanics, landscapers and small-engine technicians who need a full camshaft replacement without sourcing multiple individual parts. It suits owners of compatible Toro and Briggs & Stratton-based lawn tractors and riding mowers who want a single-package repair option to get their equipment back into reliable service. If you’re unsure about fitment, compare your engine’s part numbers and model codes listed here with your equipment’s service manual before purchase.

FAQ

Q: Does this kit include the oil seal and gaskets?

A: Yes — the kit includes gaskets (272475S, 697110) and an oil seal (795387) plus fastening screws.

Q: How do I confirm this camshaft fits my engine?

A: Match your engine’s model/code or OEM part numbers listed in the description to confirm compatibility.