Description
Overview:
This genuine Stihl O-Ring 6.75 x 1.78 is a small, precision rubber seal used in Stihl pressure washers to prevent leaks and maintain stable operating pressure. Moulded from durable black rubber for reliable sealing, it measures 6.75 mm x 1.78 mm (approx. 0.266 in x 0.070 in), making it suitable for tight clearances in pump and hose assemblies. It is designed for Stihl machines, including the RE500W and RE530W, and matches Stihl part reference 9645 945 7475. Correctly sized O-rings are critical where water and pressure must be contained, such as pump heads, couplings and lances. Fitting a fresh, correctly sized seal helps restore proper function and reduces the chance of downtime caused by drips, pressure loss or air ingress.
Key Features:
- Genuine Stihl OEM part for dependable fit and function across specified models
- Precise sizing: 6.75 mm x 1.78 mm (0.266 in x 0.070 in) for accurate sealing in compact grooves
- Tough rubber construction suited to high-pressure washer environments
- Helps prevent leaks, maintain pressure, and reduce premature wear of mating parts
- Consistent quality and finish for repeatable sealing performance
- Simple like-for-like replacement; no modification to fittings required
- Suitable for common sealing points such as pump heads, hoses, lances, and quick couplers
- Handy metric and imperial size reference for quick identification during maintenance
Typical Applications:
Used to seal water connections in Stihl pressure washer systems, including pump housings, outlet/inlet fittings, hose tails, lances, and quick-connect couplings. Ideal during routine servicing, rebuilds, or when diagnosing pressure loss, air leaks, or drips at joints. Helps restore efficient operation and protect components from wear caused by inadequate sealing.
Also known as:
Seal ring, sealing ring, gasket ring, toroidal ring, rubber washer (sealing washer), pump seal, pressure washer O-ring.
Fits Models:
RB 220 K, RB 400 K, RB220K, RB400K, RE 100 K, RE 101K, RE 102 K, RE 102 KM, RE 104 K, RE 104 KM, RE 105 K, RE 106 K, RE 106 KM, RE 110, RE 115 K, RE 120 K, RE 125 K, RE 140 K, RE 160 K, RE 220 K, RE 240 K, RE 250 K, RE 260 K, RE 271, RE 271 PLUS, RE 281, RE 281 PLUS, RE 310 K, RE 340 K, RE 400 K, RE 401 K, RE 440 K, RE100K, RE101K, RE102K, RE102KM, RE104K, RE104KM, RE105K, RE106K, RE106KM, RE110, RE110K, RE115K, RE120K, RE125K, RE140K, RE160K, RE220K, RE240K, RE250K, RE260K, RE271, RE271 PLUS, RE271PLUS, RE281, RE281 PLUS, RE281PLUS, RE310K, RE340K, RE40, RE400K, RE401K, RE440K, RE500W, RE530W, RE560W, RE640W, RE830W, RE840W
Alternate Part Numbers:
9645-945-7475, 96459457475
Product Specifications
| L&S Part No. | 9645 945 7475 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96459457475 |
| Unit of Sale | 1 |
| Applications | RB 220 K, RB 400 K, RB220K, RB400K, RE 100 K, RE 101K, RE 102 K, RE 102 KM, RE 104 K, RE 104 KM, RE 105 K, RE 106 K, RE 106 KM, RE 110, RE 115 K, RE 120 K, RE 125 K, RE 140 K, RE 160 K, RE 220 K, RE 240 K, RE 250 K, RE 260 K, RE 271, RE 271 PLUS, RE 281, RE 281 PLUS, RE 310 K, RE 340 K, RE 400 K, RE 401 K, RE 440 K, RE100K, RE101K, RE102K, RE102KM, RE104K, RE104KM, RE105K, RE106K, RE106KM, RE110, RE110K, RE115K, RE120K, RE125K, RE140K, RE160K, RE220K, RE240K, RE250K, RE260K, RE271, RE271 PLUS, RE271PLUS, RE281, RE281 PLUS, RE281PLUS, RE310K, RE340K, RE40, RE400K, RE401K, RE440K, RE500W, RE530W, RE560W, RE640W, RE830W, RE840W |
| Machine Type | Pressure Washers |
| Fits Brands | Stihl |
| Fits Models | RB 220 K | RB 400 K | RE 100 K, RE 110, RE 120 K | RE 102 K, RE 104 K, RE 106 K | RE 102 KM, RE 104 KM, RE 106 KM | RE 105 K | RE 115 K, RE 125 K | RE 140 K, RE 160 K | RE500W, RE530W, RE560W | RE640W | RE830W | RE840W | RE 220 K, RE 240 K, RB 220 K | RE 250 K, RE 260 K | RE 271, RE 281 | RE 310 K, RE 340 K, RE 440 K | RE 400 K, RE 401 K, RB 400 K | RE 101K |
