Description
Overview:
This is a genuine Husqvarna sealing (oil seal) for mid-size professional chainsaws, designed to keep oil and air where they should be for reliable engine performance. Made from fuel- and oil-resistant elastomer with a rigid outer case, it provides a precise, long-lasting seal under heat, vibration and heavy use. It helps prevent air leaks that can lead to poor starting, erratic idling and lean running, while also containing oil to reduce mess and wear. Suitable for two-stroke chainsaw engines, it fits popular models such as the Husqvarna 362 and 372. As a Genuine Part, it matches OEM specifications for fit and function, making it a dependable choice for routine maintenance and engine rebuilds.
Key Features:
- Genuine Husqvarna OEM part for assured compatibility and performance
- Precise fit to the specified saws for a secure, leak-tight seal
- Resistant to petrol, oil, heat and vibration for extended service life
- Helps restore correct crankcase sealing to support smooth running
- Can reduce hard-starting and erratic idle caused by air leaks
- Durable construction suitable for frequent or professional use
- Straightforward replacement when servicing the engine or bearings
- Supports efficient lubrication and protects internal components
Typical Applications:
Used during engine maintenance and rebuilds on Husqvarna and Jonsered chainsaws to replace worn or leaking seals. Ideal when addressing air leaks, poor throttle response or unstable idle, or whenever crankshaft bearings are renewed. Suitable for workshop repairs, hire fleet servicing and routine upkeep for forestry, arborist and grounds maintenance users, as well as DIY owners.
Also known as:
Crankshaft oil seal, flywheel-side seal, PTO-side seal, crankcase seal, shaft seal, rotary oil seal, engine oil seal, motor seal for two-stroke chainsaws.
Fits Models:
Husqvarna 362, Husqvarna 362 XP, Husqvarna 362 XP SPECIAL, Husqvarna 365, Husqvarna 365 H, Husqvarna 365 SP, Husqvarna 365 SPECIAL, Husqvarna 365 X-TORQ, Husqvarna 371, Husqvarna 371 XP, Husqvarna 371K, Husqvarna 372, Husqvarna 372 XP, Husqvarna 372 XP X-TORQ, Husqvarna 375K, Jonsered 2063, Jonsered 2065, Jonsered 2071, Jonsered 2071 W, Jonsered 2163, Jonsered 2165 EPA, Jonsered 2171, Jonsered 2171 EPA, Jonsered CS2163, Jonsered CS2163 EPA, Jonsered CS2165, Jonsered CS2165 EPA, Jonsered CS2166, Jonsered CS2171, Jonsered CS2172.
Alternate Part Numbers:
503 26 03-01, 503260301
Product Specifications
| L&S Part No. | 503 26 03 01 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503260301 |
| Unit of Sale | 1 |
| Applications | 2063, 2065, 2071, 2071 W, 2071W, 2163, 2165 EPA, 2165EPA, 2171, 2171 EPA, 2171EPA, 362, 362 XP SPECIAL, 362XP, 362XP SPECIAL, 365, 365 SPECIAL, 365 X-Torq, 365H, 371, 371K, 371XP, 372, 372XP, 372XP X-Torq, 375K, CS2163, CS2163 EPA, CS2165, CS2165 EPA, CS2166, CS2171, CS2172, Husqvarna 362, Husqvarna 362 XP, Husqvarna 365, Husqvarna 365 H, Husqvarna 365 X-TORQ, Husqvarna 365SP, Husqvarna 371, Husqvarna 371 XP, Husqvarna 371K, Husqvarna 372, Husqvarna 372 XP, Husqvarna 375K, Husqvarna362XP, Husqvarna365 X-Torq, Husqvarna365H, Husqvarna365SP, Husqvarna365SPECIAL, Husqvarna371K, Husqvarna371XP, Husqvarna372XP, Husqvarna372XP X-Torq, Husqvarna375K, Jonsered2071W, Jonsered2165EPA, Jonsered2171EPA, JonseredCS2163, JonseredCS2163EPA, JonseredCS2165, JonseredCS2165EPA, JonseredCS2166, JonseredCS2171, JonseredCS2172 |
| Machine Type | Chainsaws |
| Fits Brands | Husqvarna |
| Fits Models | 362 | 362XP | 365 | 365H | 365X-TORQ | 371XP | 372XP | 372XP X-TORQ | 371K | 375K |

