Titan 441-908 Spool Valve With Sleeve
OEM Titan Spool / Sleeve Set
Titan 441-908 Spool Valve with Sleeve is a genuine OEM hydraulic motor component used in compatible PowrTwin, PowrLiner, and PowrTex sprayers. This precision spool and sleeve assembly controls hydraulic fluid flow within the motor, directing pressure to drive the piston and maintaining smooth, reliable operation.
Compatibility Overview
Replacing a worn or sticking spool/sleeve set restores proper hydraulic motor operation and prevents stalling.
Titan Hydraulic Motor Component
Titan 441-908 Spool Valve with Sleeve for PowrTwin, PowrLiner, and PowrTex Equipment
Titan 441-908 is a genuine OEM spool and sleeve set designed for the hydraulic motor assembly of compatible Titan and Speeflo professional sprayers. This precision component consists of a matched spool and sleeve that work together to control hydraulic fluid flow within the motor, directing pressure to drive the piston and maintaining smooth, reliable operation. It is listed in official Titan manual parts lists for the PowrTwin 5500, PowrTwin 6900 DI Plus, PowrLiner 9900XLT, PT12000 Plus DI, PT6900 Plus DI, and PowrTex 6900SF/12000SV. The official PowrTex service procedure provides detailed disassembly, inspection, and reassembly instructions, noting that the spool valve should move smoothly and freely with no force when held in a vertical position; if it does not, it can cause the motor to stall. ATS, an authorized parts retailer, notes that 441-908 is replaced by 441-908A.
| Detail | Technical / Commercial Information |
|---|---|
| Product Overview | OEM Titan/Speeflo 441-908 spool and sleeve set. Listed in official Titan PowrTwin 5500, PowrTwin 6900 DI Plus, PowrLiner 9900XLT, PT12000 Plus DI, PT6900 Plus DI, and PowrTex 6900SF/12000SV Hydraulic Motor parts lists as "Spool / sleeve set" with quantity 1. ATS notes that 441-908 is replaced by 441-908A. |
| Function | Controls hydraulic fluid flow within the motor. Directs pressure to drive the piston. Maintains smooth spool movement for reliable motor operation. The spool valve should move smoothly and freely with no force when held vertically [citation:3]. |
| Compatible Models | PowrTwin 3500 (50th Anniversary), 3500-DC, 4500, 4900, 4900GH, 4900XLT, 5500, 6900, 6900GH, 6900GHD, 6900XLT, 8900, 8900GH, 8900XLT, 12000, 12000GH, 12000GHD, 12000XLT, 12000XLTDI; PowrLiner 4000, 4950, 4955, 5000, 6000, 6900, 6900XLT, 6950, 6955, 8900, 8900XLT, 8900XLTSP, 9900XLT; PowrTex 1200SV, 6900SF, 12000SV. Verify fitment against your specific model parts diagram. |
| When Replacement Is Recommended | Spool does not move smoothly or freely. Visible wear, scratches, or scoring on the spool or sleeve. Motor stalling or erratic operation. Hydraulic fluid leaks at the spool/sleeve area. |
| Service Guidance | Per the official PowrTex service procedure: separate the spool/sleeve set, place O-rings onto the sleeve, lubricate with hydraulic oil, gently push the sleeve into the cylinder head with the flatter side facing out, use a nylon rod to tap the sleeve to full depth, install the spool through the top of the cylinder head into the sleeve, then install trip retainer balls and springs to hold the spool/sleeve in place. Install sleeve retainer and snap ring to hold the valve sleeve. |
| Related Parts Serviced Together | O-rings (141-007), trip springs (325-005), trip retainers (235-018), cylinder head (235-112FZ), sleeve retainer (431-053), and snap ring. Inspect these during spool/sleeve replacement. |
| Commercial Benefits | Restores proper hydraulic motor operation, prevents stalling, ensures smooth spool movement, and maintains consistent spray performance. |
The 441-908 Spool Valve with Sleeve is a practical replacement for contractors and service technicians maintaining compatible Titan and Speeflo equipment. If the hydraulic motor stalls, operates erratically, or the spool does not move smoothly when inspected, the spool/sleeve set may be worn or damaged. The official service procedure emphasizes that the spool valve should move smoothly and freely with no force when held vertically; if it does not, it can cause the motor to stall. During hydraulic motor service, inspect the spool and sleeve for wear, scratches, or scoring, and follow the official procedure for proper installation, including lubricating O-rings with hydraulic oil and using a nylon rod for sleeve installation. Note that 441-908 is replaced by 441-908A.
Frequently Asked Questions
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