The Husqvarna 503235109 Spark Plug is a genuine OEM ignition component designed for a wide range of Husqvarna power cutters. This spark plug delivers the correct heat range, electrode gap, and thread specification for its intended applications, ensuring consistent ignition performance across the K650, K650CutnBreak, K700, K750, K960, K970, K1250, K1260, K1270R, and 3122K power cutters. DHS Equipment supplies this genuine OEM part to help keep your equipment running at full capacity. Cross-reference part number 503235109 against your machine's parts diagram to confirm fitment before ordering.
Key Features
- Correct Ignition Spec — Manufactured to Husqvarna's OEM electrode gap, heat range, and thread pitch specifications, so combustion timing stays consistent from the first pull.
- Broad Power Cutter Coverage — A single part number covering ten Husqvarna power cutter models, including the K650, K750, K970, K1250, and K1270R series.
- Direct Drop-In Replacement — Matches the original plug's thread size and reach, fitting the cylinder head without additional adapters or modifications to the plug boot or ignition lead.
- Restored Starting Performance — A worn or fouled spark plug causes hard starting, misfires, and loss of power under load. Replacing it with the correct OEM unit restores clean ignition and smooth throttle response.
- Fuel System Safety — An incorrectly specified plug can cause pre-ignition or running issues in a high-compression cut-off saw engine; using the genuine OEM part eliminates that risk.
A spark plug ignites the compressed air-fuel mixture inside the engine cylinder, initiating the power stroke that drives the blade. In a high-demand power cutter, the plug is subjected to intense heat and pressure on every cycle, and its condition directly affects starting reliability, fuel efficiency, and overall engine response. When a spark plug wears, its electrode gap widens, the insulator degrades, and ignition becomes inconsistent — leading to hard starting, rough running, or failure to start under load. Replacing it with the OEM-specified plug restores the precise spark energy the engine was designed to operate on.
Part Details
| Part Number | 503235109 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Spark Plug |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K1270R |
| Power Cutter | K1250 |
| Power Cutter | K700 |
| Power Cutter | K650 |
| Power Cutter | K650CutnBreak |
| Power Cutter | K750 |
| Power Cutter | K960 |
| Power Cutter | K970 |
| Power Cutter | 3122K |
| Power Cutter | K1260 |
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.
