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A flywheel ring gear is a critical component for starting your vehicle's engine. It engages with the starter motor to initiate combustion. Ensuring you select the correct replacement part is vital for reliable engine performance and longevity.
COMPATIBLE WITH: Flywheel Starter Ring Gear Compatible with Kohler Command V-Twin flywheels & Kohler Courage flywheels. This IS NOT a replacement ring gear for the Single Cylinder Flathead Kohler K-series 9.5" flywheels
PRODUCT SPECIFICATIONS: 1 Pcs Flywheel Starter Ring Gear. Replacement Flywheel Ring Gear has 97 teeth. I.D. = 8.661 inches (220 mm). O.D. = 9.882 inches (251 mm)
MATERIALS: Automotive Flywheel Ring Gear is made of high-quality materials with high hardness, strong wear resistance, strong load-bearing capacity, long service life, compact structure, and good stability
INSTALLATION: Replacement Ring Gear is easy to install and can directly replace old or damaged engine flywheel ring gears. When installed on a flywheel it will add about 1.5 lbs to the overall rotating mass. You may use a BBQ pit or over in lie of welding...
NOTE: Please confirm that the parts are the correct ones you need before purchasing. If you are not sure, please contact us for verification
Precision Fit: Automotive flywheel ring gear compatible with Kohler Command V-Twin and Kohler Courage flywheels, it features an outer diameter of 9.882 inches and an inner diameter of 8.661 inches, ensuring stable engagement
Reliable Starting: Adopting high-precision tooth profile design, the starting gear and flywheel are stably meshed to maintain reliable start, effectively solving the problems of difficult start, idle or stuck teeth caused by ring gear wear
High Strength Steel: Made of high hardness steel, wear-resistant, with strong bearing capacity, capable of withstanding frequent starting impacts, and reducing wear during long-term operation
Precision Design: The 97 tooth design has high precision and uniform tooth distribution, which can reduce the risk of meshing impact and abnormal wear, and improve the smoothness of the starting process
Easy Installation: Replace directly and easily complete the installation without the need for complex tools. Before installation, the ring gear can be heated for easier installation onto the flywheel
Compatible With: This flywheel starter ring gear is specifically designed to fit Kohler Command V-Twin flywheels and Kohler Courage flywheels. Note: It is not suitable for Single Cylinder Flathead Kohler K-series 9.5" flywheels.
Replace OE: This replacement ring gear is an ideal substitute for your worn or damaged ring gear, helping restore your engine’s performance to its original condition.
High Quality: This automotive flywheel ring gear is crafted from premium materials offering high hardness, exceptional wear resistance, and strong load-bearing capacity. It ensures a long service life and reliable performance.
Function: This ring gear features 97 teeth and adds approximately 1.5 lbs to the rotating mass of your flywheel. It's designed for straightforward installation and enhances the starting reliability of your engine.
Package Includes: 1 x Flywheel Starter Ring Gear (97 Teeth). Please verify compatibility with your engine model before purchasing. If unsure, contact us for assistance.
499612 Ring Gear: Compatible with Briggs and Stratton, Cub Cadet, Toro, Simplicity, Craftsman. And works with Engine, Lawn Mower, Lawn Tractor.
Part Number & Compatibility: Part Number ENP70-0019, B1499612, 499612, 499612-A; Fits Briggs and Stratton 40 44 45 Small Engine Series Briggs and Stratton 401577; 4025A7; 4035A7; 403677; 404577; 4045A...
High Quality & Perfect Fit: Alocs Ring Gear are made from high quality material,which are sturdy and durable. It is suitable for replacing the ring gear of the engine.
What You Get：1 * 499612 Ring Gear for Starter, 3 * screws and 3 * nuts (Come with flat head screws and elastic lock nuts for installation on the flywheel.Please do not over tighten the screws, over tightening will damage the ring).
After-Sale: If you have any questions about our gear ring replacement, you can contact us at any time, and we will reply to you within 24 hours.
Precision Engineering: Automotive flywheel ring gear is meticulously crafted to achieve optimal engagement with the starter motor gear， and ensures a smooth connection and high transmission efficiency, enabling quick and effortless engine ignition while...
High-quality Material: Made of high-quality high-strength steel, flywheel ring gear has excellent wear resistance and can withstand long-term heavy-load operation at high speed and high torque, and can maintain stable performance for a long time
Compatibility: 97 teeth flywheel starter ring gear fit for Kohler Command V-Twin flywheels & Kohler Courage flywheels, outer diameter=9.882" (251mm), inner diameter=8.661" (220mm)
Smooth Start: Due to the high-precision manufacturing of the gears and the evenly distributed number of teeth, the impact force during startup is smaller, the starting process is smoother, the impact on the engine and other components is reduced, and the...
Easy Installation: Precise gear processing and standardized size design make the installation process simple and quick, no additional adjustments or complicated tools are required to easily complete the installation
New ring gear for GM engines, fits any flywheel that measures 14-1/8" (168 teeth).
Fits most Mercruiser, Volvo Penta and some OMC with GM engines
Fits: 3.0/181 (some early 3.0 had a smaller fly wheel, if you have a 3.0 check that you have a 14" flywheel) 4.3/4.3 5.0/5.0 5.7/350 6.2/377 7.4/454 8.1/496 8.2/502
These are easy to replace once the flywheel is off. Simply heat the old with a propane or oxy torch and will come off, then set the new on and heat it to get it on the flywheel.
Last update on 2026-09-02 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Flywheel Ring Gears
Understanding Flywheel Ring Gears
A flywheel ring gear is a toothed metal ring that fits around the outer edge of a vehicle's flywheel. Its primary function is to mesh with the starter motor's pinion gear, allowing the starter to turn the engine over and begin the combustion process. When replacing a damaged or worn ring gear, it's essential to match it precisely to your vehicle's specifications.
Key Considerations for Replacement
Vehicle Compatibility: Always verify the ring gear's compatibility with your specific make, model, year, and engine size. Incorrect fitment can lead to severe damage to both the ring gear and the starter motor.
Material and Durability: Ring gears are typically made from hardened steel for strength and wear resistance. Higher quality gears may offer enhanced durability and a longer service life.
Teeth Count and Pitch: The number of teeth on the ring gear and the pitch (spacing between teeth) must precisely match the starter motor's pinion gear to ensure proper engagement and prevent grinding or slippage.
Brand Reputation: Opting for reputable aftermarket brands or OEM (Original Equipment Manufacturer) parts can provide greater assurance of quality and reliability.
Installation and Maintenance
Replacing a flywheel ring gear often requires removing the transmission and flywheel, a task best suited for experienced mechanics. Proper installation ensures correct engagement with the starter. Regular checks for wear or damage during other maintenance procedures can help prevent premature failure.
Frequently Asked Questions
How do I know if my flywheel ring gear needs replacement?
Symptoms of a worn or damaged ring gear include a grinding noise when attempting to start the engine, or the starter motor spinning without engaging. If the engine fails to crank, it's a strong indicator that the ring gear might be the issue.
Can I use a universal flywheel ring gear?
Generally, universal ring gears are not recommended for automotive applications. Precise fitment is crucial for proper engagement with the starter motor and flywheel. Always use a gear specifically designed for your vehicle's make and model.
What's the difference between a ring gear and a flywheel?
The flywheel is a heavy rotating disc that smooths out engine power delivery and stores rotational energy. The ring gear is a separate, toothed ring that is attached to the outer edge of the flywheel, designed to be engaged by the starter motor.
How long does a replacement flywheel ring gear typically last?
With proper installation and normal use, a quality replacement ring gear should last for many years and hundreds of thousands of miles. However, this can be affected by driving habits and the quality of the replacement part.
Is replacing a ring gear a DIY job?
Replacing a flywheel ring gear is a complex procedure that usually involves significant disassembly of the engine and transmission. It is generally recommended to have this service performed by a qualified mechanic to ensure correct installation and avoid further damage.
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