Description
Overview:
The Kohler breather hose with OEM number 12 326 30-S is a Genuine Kohler part designed for Command series engines such as the CV430 and CV450. It is a flexible, moulded, oil- and heat-resistant rubber hose that routes crankcase vapours back to the intake, helping to vent gases, prevent pressure build-up, and keep the engine running smoothly. By maintaining correct crankcase ventilation, it can reduce the risk of oil leaks and sludge formation. This hose is commonly used on lawn and garden machinery such as ride-on mowers and lawn tractors powered by Kohler vertical-shaft engines. Built to withstand vibration and regular use, it offers a direct, reliable replacement for worn or cracked hoses to support consistent performance and dependable starting.
Key Features:
- Genuine Kohler replacement for OEM No. 12 326 30-S for assured fit and compatibility
- Durable, oil- and heat-resistant rubber construction for long service life
- Correct moulded shape to prevent kinks and ensure steady airflow
- Helps maintain crankcase vacuum and stable idle for smoother running
- Supports proper engine ventilation to minimise pressure build-up and oil misting
- Resists cracking and hardening under typical engine bay temperatures and vibration
- Straightforward installation with OE routing; no modifications required
- Suitable for routine maintenance to restore ventilation performance
- Compatible with multiple Kohler Command vertical-shaft engines (see model list)
Typical Applications:
Used on garden tractors, ride-on mowers, zero-turn mowers, and similar equipment fitted with Kohler Command engines. Ideal when servicing engines that show signs of breather hose ageing such as brittleness, cracking, or oil residue around the crankcase vent path. Helps maintain clean running and reliable operation during regular seasonal maintenance.
Also known as:
Crankcase breather hose, engine breather tube, valve cover breather hose, crankcase ventilation hose, rocker cover vent hose, PCV breather tube (small-engine type), Kohler Command breather pipe.
Fits Models:
CV14, CV15, CV430, CV450, CV460, CV461, CV490, CV491, CV492, CV493
Alternate Part Numbers:
12 326 30S, 1232630-S, 1232630S
Product Specifications
| L&S Part No. | 12 326 30-S |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kohler |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Kohler |
| Key Features | - Genuine Kohler part for Command series engines - Oil- and heat-resistant rubber construction - Prevents kinks for steady airflow - Supports proper engine ventilation - Fits CV14, CV15, CV430, CV450, CV460 models |
| Fits Models | CV14 | CV15 | CV430 | CV450 | CV460 | CV461 | CV490 | CV491 | CV492 | CV493 |
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