The Husqvarna 740431400 O-Ring is a genuine OEM sealing component designed for the and PP325E power packs. As a direct OEM replacement, this O-Ring is manufactured to Husqvarna's exact material and dimensional specifications, ensuring a proper seal within the power pack's hydraulic or fluid circuits. DHS Equipment supplies this part to help keep your equipment running at full performance.
Key Features
- OEM-Grade Elastomer Compound — manufactured to Husqvarna's precise material specification, delivering the correct compression set and chemical resistance required for power pack hydraulic systems
- Exact-Dimension Replacement — matches the original cross-section and diameter for a drop-in fit with no modification to the housing or mating surfaces
- Compatible Power Pack Fitment — confirmed for the 965156408 and PP325E power packs; cross-reference part number 740431400 against your parts diagram before ordering
- Leak Prevention — a correctly seated O-Ring maintains pressure integrity across fluid or hydraulic passages, preventing fluid loss that would otherwise reduce power pack output and damage connected tooling
- Hydraulic System Safety — a failed or extruded O-Ring can cause uncontrolled fluid release under pressure; replacing it with the correct OEM part restores safe, contained system operation
An O-Ring is a circular elastomeric seal seated in a machined groove between two mating components. Its role is to compress just enough under assembly to block the passage of fluid or air across the joint, maintaining system pressure without over-stressing the surrounding material. In a power pack like the PP325E, O-Rings are used throughout hydraulic circuits and fluid connections; when one degrades, cracks, or takes a permanent set, it allows fluid to bypass the seal — leading to pressure loss, external leaks, and potential damage to downstream tools and hoses. Replacing a worn O-Ring promptly with the correct OEM part restores full sealing performance and protects the wider hydraulic system.
Part Details
| Part Number | 740431400 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | O-Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Pack | 965156408 |
| Power Pack | PP325E |
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.
