Titan 235-027 Piston Seal or Seal, Piston
OEM Titan Hydraulic Motor Seal
Titan 235-027 Piston Seal is an OEM dynamic seal that prevents fluid bypass around the piston in the hydraulic motor of compatible PowrTwin, PowrLiner, and PowrTex sprayers, maintaining pressure and pumping efficiency.
Compatibility Table
Replacing a worn or damaged piston seal restores pumping efficiency, eliminates pressure loss, and prevents costly fluid section damage.
Titan Hydraulic Motor Replacement Seal
Titan 235-026 O-Ring for PowrTwin, PowrLiner and PowrTex Sprayers
Titan 235-026 is an OEM O-ring that serves as a critical sealing component in the hydraulic motor assembly of professional Titan airless sprayers. Official Titan service manuals list this O-ring as item 19 in the hydraulic motor parts diagram, positioned between the piston and valve rod assembly [citation:3]. During reassembly, this O-ring must be well lubricated before the piston is installed onto the piston rod, and it works in conjunction with the piston seal (235-027) and piston retainer screw (235-022) to maintain a pressure-tight hydraulic motor [citation:3]. Verified compatibility data confirms this O-ring is used across an extensive range of models, including the PowrTwin 3500 through 12000 series, the PowrLiner 4000 through 8955 lineup, and PowrTex texture sprayers [citation:1]. Over time, O-rings naturally compress and take a set from pressure cycling, temperature changes, and chemical exposure. A worn, flattened, or damaged O-ring can lead to internal fluid bypass, pressure drop, sluggish pump performance, or external hydraulic fluid leaks. The 235-026 is manufactured to precise tolerances for reliable sealing against hydraulic fluid under high pressure. Always verify fitment against your specific model's parts diagram before ordering, as configurations can vary between model years and revisions.
| Detail | Technical / Commercial Information |
|---|---|
| Product Overview | OEM Titan O-ring for the hydraulic motor assembly, sealing between piston and valve rod components. |
| Function | Provides leak-tight seal between mating components in hydraulic motor; prevents internal fluid bypass and external leaks; maintains pressure retention. |
| Compatible Titan Machines | PowrTwin TM 8900 XLT, 12000 GHD, 12000 GH, 12000 XLT, 12000 XLT DI, 12000 Plus DI, 8900 GHD, 8900 GH, 6900 GH, 6900 XLT, 6900 DI, 4900 GH, 4900 XLT, 4900, 6900, 8900, 12000 Plus, 4500, 3500, 3500 50th Anniversary; PowrTex 6900SF, 12000SV; PowrLiner 8900, 8900 XLT SP, 6950, 6900 XLT, 6900 XLT SP, 6000, 5000, 4950, 4900 XLT, 4000, 4955, 6955, 8955. |
| OEM Part Number | 235-026 O-Ring. |
| Common Problems Solved | Flattened or compressed O-ring, cracks or nicks from installation damage, hardening or swelling from chemical exposure, internal fluid bypass, pressure drop, and external hydraulic leaks. |
| Target Users / Markets | Painting contractors, rental fleets, maintenance crews, and repair shops running compatible Titan PowrTwin, PowrLiner, or PowrTex sprayers. |
| Commercial Benefits | Restores proper hydraulic motor sealing, eliminates fluid leaks, maintains pumping pressure, and extends hydraulic motor life. |
When installing the 235-026 O-Ring, lubricate it well with hydraulic oil before installation. The O-ring is installed between the piston and valve rod assembly during hydraulic motor reassembly. Inspect the mating groove for nicks, corrosion, or debris that could damage the new O-ring. Do not use Piston Lube pump packing lubricant on hydraulic motor O-rings, as it is a solvent that will severely damage the seals. Always verify fitment against your specific model's parts diagram before ordering.
Frequently Asked Questions
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