Description
Overview:
This 1/8" x 1/2" (3.18 mm x 12.70 mm) shaft key is a Genuine Kohler part for securing rotating components to the crankshaft on selected Kohler SV Series engines. Made from durable steel, it locates the flywheel, pulley, or drive hub so torque is transmitted correctly and timing remains stable. Accurate sizing and OEM tolerances help prevent slippage and misalignment during operation. Suitable for routine maintenance and repairs on ride-on mowers, garden tractors, and equipment powered by Kohler engines such as the SV710 and SV715, it offers a straightforward, reliable replacement. OEM reference: X-43-1-S. A compact, single-piece key, it is simple to fit and designed for long service life in demanding garden and light construction applications.
Key Features:
- Genuine Kohler part for assured fit and material quality (OEM No. X-43-1-S)
- Standard size: 1/8" x 1/2" (3.18 mm x 12.70 mm) for correct keyway engagement
- Steel construction for strength and wear resistance under load
- Helps maintain flywheel/pulley location and crankshaft timing integrity
- Machined to OEM tolerances to reduce play and minimise slippage
- Compact design; easy to install during routine engine servicing
- Suitable for frequent start/stop use typical of lawn and garden machinery
- Cost‐effective replacement to restore reliable drive connection
Typical Applications:
Used to secure a flywheel, drive pulley, or blade adaptor to the crankshaft on Kohler SV Series engines. Ideal when replacing a sheared, worn, or missing key during servicing, after impact events, or as part of preventative maintenance to maintain correct timing and dependable power transmission in mowers, garden tractors, and similar equipment.
Also known as:
Engine key, flywheel key, crankshaft key, shaft key, timing key, drive key, Kohler key, alignment key.
Fits Models:
SV710, SV715, SV720, SV725, SV730, SV735, SV740, SV810, SV820, SV830, SV840
Alternate Part Numbers:
X-43-1-S, X431S
Product Specifications
| L&S Part No. | X-43-1-S |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kohler |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Kohler |
| Key Features | - Genuine Kohler part ensures correct fit and quality - Standard size: 1/8" x 1/2" for keyway engagement - Steel construction offers strength and wear resistance - Maintains flywheel and crankshaft timing integrity - Fits Kohler SV710, SV715, SV720, SV725, SV730, SV735, SV740, SV810, SV820, SV830, SV840 |
| Fits Models | SV710 | SV715 | SV720 | SV725 | SV730 | SV735 | SV740 | SV810 | SV820 | SV830 | SV840 |
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