aurosant Kohler-compatible Starter 12V 10-Tooth for 15-27 HP Mowers — 0.8 kW PMDD, CCW Rotation

aurosant's SD80-series Kohler-compatible starter is a 12V, 0.8 kW PMDD starter with a 10-tooth gear designed to replace OE Kohler part numbers and fit a wide range of lawn mower and small tractor models.

This compact starter unit is engineered as a direct-replacement for Kohler and common OEM numbers used across garden equipment — delivering consistent engagement, robust gearing, and a sealed construction intended for frequent use. It matches the counterclockwise rotation and electrical specs of many 12V systems, so you can restore reliable cranking without modifying the vehicle. The unit is manufactured under ISO 9001 and IATF 16949 quality processes and is backed by a one-year warranty and responsive support.

What engines and part numbers does this starter replace?

The starter is built to replace numerous Kohler and OEM references, making it suitable for many mower and small-tractor models. Check compatibility against your existing starter number and rotation direction before ordering.

• Compatible with Kohler OE numbers such as 2509808, 2509809, 2509811 and related variants
• Also fits cross-reference numbers like 41012182, 41012414, SDR0291 and WI53044
• Commonly used on brands including John Deere, Toro, Cub Cadet, Scotts, Thomas, and Grasshopper

How does this starter perform compared with the original equipment?

Designed to meet or exceed OE standards, the SD80-series starter uses precision metal components and a PMDD motor for dependable torque and engagement. Its optimized gearset and assembly aim to provide the same start behavior as the factory part while offering long-term durability.

• 0.8 kW power output for consistent cranking on 12V systems
• PMDD design for compact size and efficient electrical use
• Ten-tooth pinion matched to original gear ratios and engagement profiles

What specifications should I verify before installing?

Confirming a few measurements and electrical details prevents fitment issues: verify the starter’s rotation direction, mounting pattern, and electrical connections against your equipment. Also match the tooth count and voltage to the original starter to ensure correct meshing with the flywheel.

• Voltage: 12V — suitable for standard small-engine battery systems
• Rotation: counterclockwise — confirm with your machine’s original starter
• Gear: 10 teeth — ensure the mating flywheel gear matches

What warranty and quality assurances come with this product?

The starter is produced in a facility certified to ISO 9001 and IATF 16949 standards, which enforces strict quality-control and production traceability. aurosant includes a one-year warranty and customer support to address fitment or performance questions after purchase.

• Manufactured under ISO 9001 & IATF 16949 certified processes
• One-year warranty coverage with responsive customer service
• Supplied as a ready-to-install replacement with standard electrical terminals

Who is this for? If you maintain lawn tractors, commercial mowers, or utility equipment that use Kohler-style starters and require a reliable 12V replacement with a 10-tooth pinion, this aurosant SD80-series starter is built for you. It’s ideal for DIY mechanics and professional service shops needing a direct-fit, quality-controlled replacement that matches common OEM numbers across John Deere, Toro, Cub Cadet, Scotts, Thomas and Grasshopper applications. Always verify the OE number, rotation, and tooth count before ordering to ensure correct compatibility.