

PowrTwin part 441-217 is a Synthetic rubber O-Ring used to create fluid-tight seals between mating components. When the o-ring becomes worn, hardened, or damaged, fluid leakage and pressure loss occur. This replacement o-ring restores proper sealing on compatible PowrTwin, Hydra, Powerliner, and PowrLiner units.
| Part Number | 441-217 |
|---|---|
| Part Description | Synthetic rubber O-Ring |
| Brand | PowrTwin |
| Fits | PowrTwin TM 8900 XLT, PowrTwin 12000GHD, PowrTwin 12000GH, PowrTwin 12000 XLT, PowrTwin 12000 XLT DI, PowrTwin 12000 Plus DI service, PowrTwin 12000 GHD, PowrTwin 8900GH, Hydr M and Hydra Pro Super, Hydra M and Hydra Pro 2000_4000, Powerliner 4955, 6955, 8955, PowrLiner 4000, PowrLiner 4900 XLT, PowrLiner 4900, PowrLiner 4950, PowrLiner 5000, PowrLiner 6000 |
| Condition | New |
The PowrTwin 441-217 Synthetic rubber O-Ring is a precision elastomeric sealing component designed to create fluid-tight seals between mating parts in fluid systems, pumps, valves, and manifolds. On compatible equipment including the extensive PowrTwin TM 8900 XLT, 12000GHD, 12000GH, 12000 XLT, 12000 XLT DI, 12000 Plus DI service, 12000 GHD, and 8900GH models, as well as Hydr M and Hydra Pro Super and Hydra M and Hydra Pro 2000_4000, plus Powerliner 4955, 6955, 8955 and PowrLiner 4000, 4900 XLT, 4900, 4950, 5000, and 6000, this synthetic rubber o-ring provides reliable sealing against paint, solvents, water, and other fluids. Synthetic rubber offers excellent resistance to compression set, swelling, and chemical attack compared to natural rubber. A worn, hardened, or damaged o-ring allows fluid to escape past the seal, causing external leakage, pressure drop, and material waste. A rolled or twisted o-ring during installation will also leak. Over time, exposure to solvents, pressure cycling, and temperature extremes causes o-ring material to harden, crack, or take a compression set, losing its ability to seal. Replacing a damaged o-ring restores proper sealing, eliminates leakage, and prevents progressive damage to mating surfaces from fluid erosion. This genuine PowrTwin replacement o-ring meets original equipment specifications for material composition, durometer hardness, cross-section diameter, and inner diameter. When installing a new o-ring, clean the gland thoroughly, lubricate the o-ring with compatible grease or fluid, and ensure it is not twisted or pinched during assembly. Users should always verify compatibility with their specific model and revision before installation. Regular inspection of o-rings for signs of hardening, cracking, or leakage should be part of preventive maintenance programs.
| Fluid sealing | Creates fluid-tight seal between mating components |
|---|---|
| Pressure retention | Prevents pressure loss through leakage paths |
| Chemical resistance | Synthetic rubber resists paint solvents and coatings |
| External leakage | Fluid weeping or spraying from sealed joint |
|---|---|
| Hardening or cracking | O-ring feels stiff, brittle, or shows surface cracks |
| Compression set | O-ring no longer returns to original shape after removal |
| Swelling or distortion | O-ring enlarged or deformed from chemical attack |
PowrTwin part 441-217 is compatible with the following equipment. Always confirm fitment using the correct parts diagram for your exact model and revision.
| Compatible Models | Component |
|---|---|
| PowrTwin TM 8900 XLT, 12000GHD, 12000GH, 12000 XLT, 12000 XLT DI, 12000 Plus DI service, 12000 GHD, 8900GH | Synthetic rubber O-Ring |
| Hydr M and Hydra Pro Super, Hydra M and Hydra Pro 2000_4000 | Synthetic rubber O-Ring |
| Powerliner 4955, 6955, 8955 | Synthetic rubber O-Ring |
| PowrLiner 4000, 4900 XLT, 4900, 4950, 5000, 6000 | Synthetic rubber O-Ring |
Sealing problems are often caused by more than one component. When servicing the o-ring, these parts are commonly inspected at the same time.
Scored, pitted, or corroded sealing surfaces prevent proper o-ring compression.
The part that compresses the o-ring may have damage affecting the seal.
If present, missing or damaged backup rings can allow o-ring extrusion under pressure.