Briggs & Stratton Starter Gears
Our Briggs & Stratton starter gears provide reliable engagement between starter motors and engine flywheels on lawn mowers and small engines. Engine starter gear assemblies include drive pinions, helical shafts, retaining clips, and return springs for smooth operation. We stock genuine lawn mower starter gear components in both 14-tooth steel and 16-tooth plastic configurations for material compatibility. Small engine starter gear kits offer complete drive assemblies with all necessary hardware including roll pins or C-clips. Briggs & Stratton engine starter gear replacements feature precision-machined teeth for optimal flywheel mesh and extended service life. Complete drive assemblies eliminate multiple component failures. We hold worldwide stock and despatch globally.
Available Briggs & Stratton Starter Gears
Starter Gear
496881
Briggs & Stratton
£73.30
Available
Starter Pinion Gear
593935
Briggs & Stratton
£25.30
In Stock
Starter Pinion Gear
695708
Briggs & Stratton
£7.90
In Stock
Starter Pinion Gear
280875
Briggs & Stratton
£35.10
In Stock
Pinion Gear
795096
Briggs & Stratton
£6.30
In Stock
Starter Drive
696540
Briggs & Stratton
£27.95
In Stock
Gasket Dr Gear Cov
691868
Briggs & Stratton
£2.80
In Stock
Gear Timing
797521
Briggs & Stratton
£5.50
In Stock
Rack Gov Gear
690583
Briggs & Stratton
£5.65
In Stock
Gear Ring
696537
Briggs & Stratton
£56.90
In Stock
Gear Governor
793338
Briggs & Stratton
£34.55
In Stock
Gear Ring
499612
Briggs & Stratton
£79.95
In Stock
Frequently Asked Questions
Why does my starter gear installation keep failing with flying retaining clips?
Retaining clips require proper seating technique to prevent ejection during installation. Use a socket slightly larger than the starter shaft, place it over the seated clip, and tap gently with a hammer—this compresses the clip into its groove securely. Never attempt installation with fingers alone; spring pressure launches clips unpredictably. Ensure the clip groove on the shaft is clean and undamaged. Fatigued clips from multiple installations lose tension—always use new clips for reliability. Purchase clips in packs of 5-10 (£8-12) as spares for future repairs, as lost clips halt installations immediately.
Should I replace just the starter drive gear or the complete drive assembly?
Complete drive assembly replacement (£12-20) proves more reliable than individual gear replacement (£6-10) for most repairs. Assemblies include new gears, helical shafts, springs, and retaining hardware—addressing multiple wear points simultaneously. Individual gear replacement requires proper tools for retaining clip installation and leaves worn springs or damaged helical threads intact, often causing premature failure. If you've already replaced gears twice within a season, the underlying issue likely involves worn drive components. Complete assemblies install in 5-15 minutes versus 15-30 minutes for individual gears requiring clip compression tools.
How can I tell whether my starting problem is the starter gear or something else?
Starter motor spinning without cranking indicates gear engagement failure—either the drive gear won't climb the helical shaft or the gear itself is stripped. Grinding noises suggest partial engagement from incorrect gear orientation or insufficient battery power. Clicking without spinning points to solenoid or battery issues, not gear problems. Remove the starter and manually rotate the drive gear counterclockwise—it should travel smoothly up the shaft and return under spring pressure. Sticking indicates contamination; stripped teeth confirm gear replacement necessity. Weak batteries (below 12.4 volts) prevent adequate starter speed for proper gear engagement.
Why shouldn't I lubricate the starter drive shaft like other moving parts?
Lubrication on helical drive shafts attracts grass clippings, dirt, and debris that bind the gear mechanism, preventing engagement. The inertia-drive system relies on clean, dry metal-to-metal contact for the gear to slide freely up and down the threaded shaft. Heavy grease causes gears to stick in the engaged position, potentially jamming against rotating flywheels and damaging both components. If cleaning is necessary, use brake cleaner or petrol, allow complete drying, and reinstall without lubricants. Only the top bearing surface of the starter motor requires light lithium grease—never the drive shaft itself.
Does the starter drive gear orientation matter during installation?
Absolutely critical—installing gears upside down causes immediate engagement failure and rapid wear. The beveled edge of the pinion gear must face upward (away from the starter motor) to properly mesh with flywheel teeth during engagement. Incorrect orientation prevents the gear from climbing to full engagement depth, resulting in partial tooth contact that strips gears within several starts. Check orientation before securing retaining hardware—once clips are installed, reversal requires complete disassembly. Mark the correct orientation with a felt pen during removal to ensure proper reinstallation.