503289015 Piston Rings 48mm X 1.5mm for Husqvarna 61 365

Product Overview

This precision-machined piston ring set is designed for 48mm bore engines, providing a reliable seal for optimal compression. Ideal for rebuilding Husqvarna 61 and 365 chainsaw engines, these rings restore performance and extend engine life.

Key Features & Performance

• 48mm bore diameter with 1.5mm ring thickness for exact fit
• High-strength cast iron construction for durability and heat resistance
• Precision-ground edges ensure proper cylinder wall contact
• Sold as a complete set of rings for one piston
• Direct replacement for OEM part numbers 503289015 and 503 28 90-15

Fitment & Compatibility

• Husqvarna 61
• Husqvarna 365

Common Uses

• Rebuilding chainsaw engines for professional and homeowner use
• Restoring compression in worn or damaged piston assemblies
• Performing top-end engine overhauls

Technical Specifications

• Part Number(s): 503289015, 503 28 90-15
• Ring Bore Size: 48mm
• Ring Thickness: 1.5mm
• Material: Cast iron

Frequently Asked Questions

Q: Are these rings pre-gapped? A: No, the rings are not pre-gapped; you must check and adjust end gap according to your cylinder specifications.

Q: Will these fit a Husqvarna 372? A: No, these rings are specifically designed for 48mm bore Husqvarna 61 and 365 models; verify your engine bore size before purchasing.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.