Karbay Camshaft & Governor Kit for B&S 21/31/33 Series Engines – Complete Repair Kit with Gasket & Seals

This comprehensive kit is engineered to replace worn or broken timing and governor components on a wide range of Briggs & Stratton and compatible small engines. It includes the primary camshaft, a governor assembly, oil seals, gasket, connecting rod pieces and other installation parts to make a durable repair in one service session. The components match OEM cross-reference numbers such as 793880, 691968, 84005207 and can be used across many Intek and 21/31/33-series engines and lawn tractor models.

Which engines and models does this Karbay kit fit?

This kit covers numerous B&S 4-cycle engines and several mower brands. Check your engine model code to confirm compatibility before ordering.

• Fits B&S model ranges including 215702, 215705 and related submodels (examples: 215702-0015-E1, 215702-0110-B1, 215705-0119-E1).
• Compatible with Intek engine codes 21R7, 21R8, 31R5–31R9 and 33R7–33R8 (10.5–19 HP class).
• Also suitable for certain Toro, Craftsman and Ariens lawn tractor applications (check OEM part cross-references).

What parts are included and how do they help during repair?

The package provides the main replacement pieces required for restoring valve timing, governor function, and sealing. Items are chosen to cover the common failure points encountered during mid-life engine maintenance.

• One camshaft (replaces part numbers including 793880 and 84005207) for restoring valve timing.
• One governor assembly (replaces 691968 and other related governor numbers) to re-establish speed control linkage.
• Gasket, oil seals, connecting rod pieces and a carburetor brush for a more complete rebuild.
• Seal rings and small hardware to replace worn seals and prevent oil leaks after installation.

How difficult is installation and what should I prepare?

Installation requires intermediate mechanical skills and basic engine disassembly tools. Expect to remove covers, timing components and possibly lift the cylinder head depending on engine layout; follow a service manual or step-by-step guide for torque specs and alignment marks.

• Have a torque wrench, gasket scraper, and basic hand tools ready for safe reassembly.
• Mark timing positions before disassembly and keep parts organized to avoid misalignment.
• Replace old oil and filter after reassembly and check for leaks during the first run-in period.

Will this kit work in high-hour engines or for preventative maintenance?

The kit is suitable for both restoring worn components in high-hour engines and as part of a preventive overhaul. Replacing camshaft, governor and seals in one visit reduces the chance of near-term failures and can improve engine reliability when done correctly.

• Ideal for engines showing timing wear, erratic governor response, or oil leaks around seals.
• Good choice during a larger top-end service that includes piston, rings and valve checks.
• Not a cosmetic part—inspect mating surfaces and measure tolerances if available for best results.

Who is this for: technicians, small-engine repair shops, lawn tractor owners and experienced DIYers who need a reliable, OEM-cross-referenced camshaft and governor replacement for Briggs & Stratton and compatible Intek engines. If you maintain lawn tractors or compact equipment using the listed model codes and want a single-purchase solution for timing and governor hardware, this Karbay kit is built to meet those needs while supplying the seals and small parts commonly required during a rebuild.