The Husqvarna 503145101 Clutch Spring is a genuine OEM replacement designed for a wide range of Husqvarna K-series power cutters, including the K950, K960, K970, K1250, K1260, K1270, K1270R, and K950Rescue. As a direct Husqvarna OEM component, it is manufactured to the same specifications as the original part, ensuring correct tension and engagement behavior in the clutch assembly. Cross-reference part number 503145101 against your parts diagram to confirm fitment before ordering. DHS Equipment supplies this part to help keep your power cutter performing at its best.
Key Features
- Genuine OEM Spring Temper — Manufactured to Husqvarna's original tension specification, delivering consistent clutch engagement force without premature fatigue or set.
- Drop-In Clutch Assembly Fit — Engineered to match the original spring dimensions and hook geometry, seating correctly within the clutch drum without adjustment.
- Broad K-Series Compatibility — Fits the K950, K950Rescue, K960, K970, K1250, K1260, K1270, and K1270R power cutters, covering the full range of Husqvarna's heavy-duty cut-off saw lineup.
- Restored Clutch Response — A correctly tensioned clutch spring ensures the blade engages smoothly at the right RPM threshold and releases cleanly at idle, protecting both the operator and the drive system.
- Operational Safety — A worn or broken clutch spring can cause erratic blade engagement or failure to disengage at idle, making timely replacement critical to safe machine operation.
The clutch spring is a core component of the centrifugal clutch assembly in a power cutter. It holds the clutch shoes retracted against the drum hub at idle speed, preventing the blade from spinning when the engine is not under load. As engine RPM rises, centrifugal force overcomes the spring tension, allowing the shoes to expand and engage the drum — transmitting power to the blade. When the spring weakens, loses tension, or breaks, the clutch may engage at too low an RPM, fail to release at idle, or produce uneven engagement that accelerates wear across the entire clutch assembly.
Part Details
| Part Number | 503145101 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Clutch Spring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K1270R |
| Power Cutter | K960 |
| Power Cutter | K1270 |
| Power Cutter | K1250 |
| Power Cutter | K950 |
| Power Cutter | 3122K |
| Power Cutter | K970 |
| Power Cutter | K1260 |
| Power Cutter | K950Rescue |
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.
