Description
Overview:
The O-Ring 14 x 2.5 is a genuine Stihl sealing ring designed to maintain tight, leak-free joints in engines and drive systems. Made from durable black rubber, it provides a reliable seal for fluids and air, helping keep tools running efficiently and protecting internal components from contamination. Sized 14 mm x 2.5 mm, it is suitable for a wide range of Stihl equipment, including cut-off saws, brushcutters, and lawn mowers. This OEM part carries MPN 9645 945 1390 and is a direct-fit replacement for models such as the Stihl FW20 and TS350AVE. It is a straightforward maintenance item that supports performance, reduces downtime, and helps prevent avoidable wear caused by leaks.
Key Features:
- Genuine Stihl OEM part for assured fit and compatibility
- Size 14 mm x 2.5 mm for compact sealing in grooves and housings
- Robust rubber construction for long service life in demanding conditions
- Helps prevent fuel, oil, coolant, and air leaks to protect components
- Supports consistent performance and easier cold starts by maintaining system pressure
- Simple to install during routine servicing; no special tools usually required
- Suitable for multiple Stihl platforms (e.g. FW20, TS350AVE) to simplify spares management
- Cost-effective preventative maintenance part to reduce downtime
- Black finish for easy identification during assembly
Typical Applications:
Used to seal static connections in engines and ancillaries, including carburettors, pumps, filters, housings, and pipe joints on cut-off saws, brushcutters, and walk-behind mowers. Ideal for routine servicing or when reassembling components after cleaning or repair to restore airtight and fluid-tight seals.
Also known as:
O-ring seal, sealing ring, rubber sealing ring, gasket ring, toric ring, round section seal.
Fits Models:
FS120, FS150, FS151, FS20, FS200, FS202, FS250, FS311, FS353, FS360C, FS410, FS410AV, FS410C, FW20, FW20 Cart, MB 505 BS, MB 505 C, MB 505 S, MB 555, MB 555 BS, MB 555 C, MB 555 E, MB 555 KS, MB 555 M, MB 555 MQ, MB 555 PRO, MB 555 S, MB 655.0 G, MB 655.0 GK, MB 655.0 GM, MB 655.0 GQ, MB 655.0 GS, MB 655.0 KS, MB 655.1 G, MB 655.1 GS, MB 750.0 GK, MB 750.1 GK, MB 750.1 KS, MB 750.2 KS, MB 755.0 KS, MB 755.1 KS, MB 755.2 KS, MB505BS, MB505C, MB505S, MB555, MB555BS, MB555C, MB555E, MB555KS, MB555M, MB555MQ, MB555PRO, MB555S, MB655.0G, MB655.0GK, MB655.0GM, MB655.0GQ, MB655.0GS, MB655.0KS, MB655.1G, MB655.1GS, MB6550G, MB6551G, MB750.0GK, MB750.1GK, MB750.1KS, MB750.2KS, MB755.0KS, MB755.1KS, MB755.2KS, TS350, TS350AVE, TS360, TS400, TS460, TS510, TS760
Alternate Part Numbers:
9645-945-1390, 96459451390
Product Specifications
| L&S Part No. | 9645 945 1390 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96459451390 |
| Unit of Sale | 1 |
| Applications | FS120, FS150, FS151, FS20, FS200, FS202, FS250, FS311, FS353, FS360C, FS410, FS410AV, FS410C, FW20, FW20 Cart, MB 505 BS, MB 505 C, MB 505 S, MB 555, MB 555 BS, MB 555 C, MB 555 E, MB 555 KS, MB 555 M, MB 555 MQ, MB 555 PRO, MB 555 S, MB 655.0 G, MB 655.0 GK, MB 655.0 GM, MB 655.0 GQ, MB 655.0 GS, MB 655.0 KS, MB 655.1 G, MB 655.1 GS, MB 750.0 GK, MB 750.1 GK, MB 750.1 KS, MB 750.2 KS, MB 755.0 KS, MB 755.1 KS, MB 755.2 KS, MB505BS, MB505C, MB505S, MB555, MB555BS, MB555C, MB555E, MB555KS, MB555M, MB555MQ, MB555PRO, MB555S, MB655.0G, MB655.0GK, MB655.0GM, MB655.0GQ, MB655.0GS, MB655.0KS, MB655.1G, MB655.1GS, MB6550G, MB6551G, MB750.0GK, MB750.1GK, MB750.1KS, MB750.2KS, MB755.0KS, MB755.1KS, MB755.2KS, TS350, TS350AVE, TS360, TS400, TS460, TS510, TS760 |
| Machine Type | Brushcutters, Disc Cutters, Mowers |
| Fits Models | TS400 | TS350, TS360 | TS510 | TS460 | FS120, FS200, FS250 | FS360C FS410C | FW20 Cart | FS150, FS151 | FS20 | FS200, FS202 | FS311 | FS410AV (old model) | MB 505 BS | MB 505 C | MB 505 S | MB 555 C | MB 555 PRO | MB 555 M | MB 555 MQ | MB 555 | MB 555 S | MB 555 E | MB 555 BS | MB 555 KS | MB 655.1 G | MB 655.0 G | MB 655.0 GK | MB 655.0 GM | MB 655.0 GQ | MB 655.0 GS | MB 655.1 GS | MB 655.0 KS | MB 750.0 GK | MB 750.1 GK | MB 750.1 KS | MB 750.2 KS | MB 755.0 KS | MB 755.1 KS | MB 755.2 KS | TS760 |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Washer 10.5 for Stihl SE100, SE200 - 9307 021 0200Was £0.53 £0.44 Special Price £0.42 £0.35 -
![]()
Cup Spring 23x10.2x1.25 for Stihl TS460, TS400 Disc Cutters - Genuine Part - 9486 648 1195Was £1.06 £0.88 Special Price £0.84 £0.70
