The Husqvarna 503289035 Piston Ring is a genuine OEM component designed for the K960 and K970 power cutters. As a direct factory replacement, this piston ring delivers the exact dimensional tolerances and material specification required to maintain proper cylinder sealing in these high-performance cut-off saws. Verify part number 503289035 against your parts diagram to confirm fitment before ordering. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Compression Seal Integrity — manufactured to Husqvarna's exact ring gap and radial wall tolerances, ensuring consistent cylinder pressure from the first pull.
- Direct Drop-In Replacement — matches the bore diameter and groove profile of the K960 and K970 engines, seating correctly without re-machining or modification.
- K960 and K970 Power Cutter Fitment — confirmed for both K960 and K970 handheld power cutters, covering the most widely used models in this professional cutting line.
- Restored Engine Power Output — a worn piston ring causes blow-by, loss of compression, and sluggish cutting performance; replacing it with a correctly specced OEM ring restores full combustion efficiency.
- Fuel System Compliance — proper ring sealing prevents unburned fuel from bypassing into the crankcase, protecting downstream engine components and keeping exhaust emissions within expected parameters.
The piston ring forms a critical gas-tight seal between the piston and the cylinder wall, allowing combustion pressure to drive the piston and generate power rather than escaping past it. In a high-cycle tool like a power cutter, rings are subject to continuous thermal and mechanical stress, and a worn or broken ring will quickly result in reduced compression, hard starting, increased fuel consumption, and visible loss of cutting force. Replacing the ring with a genuine OEM part like this one restores the tight seal the engine depends on and prevents further wear to the cylinder bore itself.
Part Details
| Part Number | 503289035 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Piston Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K960 |
| Power Cutter | K970 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
