The Husqvarna 503715301 Decompression Valve is a genuine OEM component designed for K760, K770, K750, K700, K650, K760II, and K650CutnBreak power cutters. As a direct factory replacement, this valve restores correct compression behavior during starting, ensuring the engine pulls over smoothly and reliably. DHS Equipment supplies this part to help keep your power cutter performing at its best on the job.
Key Features
- OEM-Spec Pressure Relief — manufactured to Husqvarna's exact pressure release tolerances, ensuring the valve vents at the correct point in the compression stroke every time
- Drop-In Cylinder Head Fit — threads directly into the cylinder head port with no modification, matching the original mounting interface on all listed models
- Broad Power Cutter Compatibility — fits the K650, K700, K750, K760, K760II, K770, and K650CutnBreak, covering a wide range of Husqvarna's professional handheld power cutters
- Easier Cold and Warm Starts — a properly functioning decompression valve reduces the pull force needed to start the engine, protecting the operator from strain and getting the machine running faster
- Genuine Husqvarna OEM Part — sourced directly from Husqvarna, this component meets the same material and dimensional standards as the part originally installed at the factory
A decompression valve is a small but critical component threaded into the cylinder head of a two-stroke engine. When activated before starting, it releases a portion of the cylinder pressure, making the pull-start stroke significantly easier to execute. Once the engine fires, the valve closes automatically and the engine runs at full compression. When this valve fails — whether it sticks open, sticks closed, or develops a leak — the engine either becomes extremely difficult to pull over or loses power and runs poorly. Replacing a worn or faulty valve with part number this part restores correct starting behavior and protects the pull-start mechanism from excessive stress.
Part Details
| Part Number | 503715301 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Decompression Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K760 |
| Power Cutter | K770 |
| Power Cutter | K650 |
| Power Cutter | K700 |
| Power Cutter | K750 |
| Power Cutter | K760II |
| Power Cutter | K650CutnBreak |
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.
