Caltric Starter for John Deere 100-Series & L118 Lawn Tractors — 16-Tooth Improved Steel Gear, Direct Replacement

If your mower or small tractor struggles to turn over, this aftermarket starter from Caltric is built to match key OEM dimensions and mounting points while providing a stronger steel pinion gear. It replaces a wide range of factory part numbers for John Deere models (L111, L118 and several 100-series tractors), Briggs & Stratton engines, and select Cub Cadet machines. The unit ships ready to install and is manufactured to the same external size and hole-spacing specifications to simplify fitment.

Which machines is this starter compatible with?

This starter is designed for many John Deere lawn tractors and engines that use similar starters, plus a broad set of Briggs & Stratton and Cub Cadet engines. Check the listed part numbers and compare mounting measurements to your original starter before ordering.

• Compatible John Deere: 100-series tractors (D125, D130, D140, D150, D160, D170), L111, L118, L145, S220, and others.
• Briggs & Stratton: multiple horizontal and vertical shaft engines including 7HP–20HP variants.
• Cub Cadet: selected models with corresponding Briggs engines (12hp–14.5hp era engines).
• Cross-reference parts: MIU13772, AM37352, AM122337, SE501880, 391423, 497595 and related numbers.

How does the 16-tooth improved steel gear help performance?

The starter uses an upgraded 16-tooth steel pinion designed for greater wear resistance than some stock plastic or softer gears. That can improve longevity under normal lawn and garden conditions and reduce the chance of stripped teeth during engagement.

• 16 hardened-steel teeth for stronger engagement with the flywheel ring gear.
• Reduced risk of gear wear compared with plastic-ring-gear applications.
• Designed to mesh cleanly with common OEM ring-gear profiles on compatible machines.

What are the physical dimensions and mounting details?

The replacement starter matches common OEM footprint measurements so it fits in place of many factory units. Confirm the mounting-hole spacing and overall dimensions against your original starter to ensure a correct swap.

• Overall length: 170 mm (6.7 in); width and height: 78 mm (3.1 in).
• Mounting hole center-to-center distance: 58 mm (2.29 in).
• Sold as a single starter unit — electrical connections match standard two-terminal starter setups.

Do I need to check anything before ordering?

Yes — always compare the provided photos and measurements with your existing starter to confirm fitment. Verify the number of pinion teeth and part number cross-references to avoid returns or installation issues.

• Compare the posted images to your current starter’s mounting flange and electrical terminals.
• Confirm compatibility with the machine’s model and engine family rather than only the tractor name.
• Keep the original part numbers handy (listed with the product) for fast cross-checking.

Who this is for: This Caltric starter is aimed at owners and technicians who need a dependable, drop-in replacement for older John Deere lawn tractors, compatible Briggs & Stratton engines, or select Cub Cadet models. It’s a practical choice if you want a direct-fit unit with a more durable 16-tooth steel gear and clear OEM dimension matches — ideal for routine maintenance or field repairs where reliable cranking and correct mounting are required.