Description
Overview:
This Kohler Rubber Grommet (part number 25 313 05-S) is a genuine sealing component for Kohler petrol engines. Moulded from durable black rubber, it sits in a bore or cover to provide a tight, flexible seal where a tube or component passes through. The seal helps prevent oil mist and unmetered air leaks, supports consistent crankcase ventilation, and maintains stable engine performance. Designed for a precise factory fit across many Kohler V‐twin models, including PCV680 and PCV740, it is suitable for routine maintenance or repair when the original grommet has hardened, cracked, or shrunk with heat and age. The material is resistant to vibration, heat, and common engine fluids, giving a long service life once installed.
Key Features:
- Genuine Kohler part for assured compatibility and quality
- High-grade, oil- and fuel-resistant rubber for durability
- Provides a snug, push-fit seal to reduce air and oil leaks
- Helps maintain correct crankcase ventilation and engine efficiency
- Stable under vibration and temperature changes for reliable running
- Quick to fit with simple hand tools; minimal downtime
- Direct replacement for worn or perished grommets-no modifications needed
- Suited to a wide range of Kohler engines used in groundcare and light machinery
Typical Applications:
Used during servicing and repairs on Kohler engines to renew a sealing point in the ventilation or pass-through area. Common on engines powering ride-on mowers, zero-turns, garden tractors, compact construction equipment, and generators. Replacing a cracked or loose grommet helps restore proper sealing, reduces mess from seepage, and supports dependable day-to-day operation.
Also known as:
PCV valve grommet, crankcase breather grommet, rocker/valve cover grommet, engine rubber pass-through seal, rubber seal grommet, Kohler engine grommet.
Fits Models:
CV17, CV18, CV20, CV22, CV25, CV620, CV624, CV640, CV670, CV680, CV682, CV730, CV732, CV740, CV742, CV745, CV750, CV752, ECV630, ECV650, ECV680, ECV730, ECV740, ECV749, FCV740, PCV680, PCV740
Alternate Part Numbers:
25 313 05S, 2531305-S, 2531305S
Product Specifications
| L&S Part No. | 25 313 05-S |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kohler |
| Unit of Sale | 1 |
| Applications | CV17, CV18, CV20, CV22, CV25, CV620, CV624, CV640, CV670, CV680, CV682, CV730, CV732, CV740, CV742, CV745, CV750, CV752, ECV630, ECV650, ECV680, ECV730, ECV740, ECV740 ECV749, ECV749, FCV740, PCV680, PCV740 |
| Machine Type | Engines |
| Fits Brands | Kohler |
| Fits Models | FCV740 | PCV680 | PCV740 | CV745 | ECV630 | ECV650 | ECV680 | ECV730 | ECV740 | ECV749 | CV17 | CV18 | CV20 | CV22 | CV25 | CV620 | CV624 | CV640 | CV670 | CV680 | CV682 | CV730 | CV732 | CV740 | CV742 | CV750 | CV752 |
