PowrLiner / PowrTwin part 779-191 is a siphon hose 52" used to draw material from a container to the pump inlet on compatible striping equipment. It features a rigid tube design with a screened strainer to prevent debris from entering the fluid system. Replacing a worn, cracked, or clogged siphon hose restores proper material pickup and ensures consistent flow on compatible PowrLiner and PowrTwin models.
The PowrLiner / PowrTwin 779-191 Siphon Hose 52" is a direct‑replacement fluid pickup assembly designed for a wide range of PowrLiner and PowrTwin striping machines. It consists of a rigid 52‑inch metal tube with a built‑in screened strainer that attaches to the pump inlet. The hose draws marking material from the pail or tank and delivers it to the pump while filtering out debris that could damage internal components.
Over time, siphon hoses can become cracked, kinked, or clogged with dried material. A damaged hose may cause intermittent pickup, reduced flow, or complete loss of prime. Replacing a worn siphon hose restores reliable material supply and helps prevent pump starvation and premature wear.
Service Guidance: When replacing the siphon hose, inspect the strainer for debris and clean the pickup area in the material container. Ensure the hose is fully submerged during operation to avoid air ingestion. Always use the correct length (52") to maintain proper reach in standard 5‑gallon pails.
What it does and when to replace it
What the siphon hose does
30< th class="w-40">Material pickupDraws fluid from the container to the pump inlet32 30< th>Debris filtrationIntegrated screen strainer prevents large particles from entering the pump32 30< th>Consistent flowRigid tube maintains proper positioning for reliable priming and flow32
When replacement is recommended
30< th class="w-40">Cracks or leaksVisible cracks, splits, or fluid leaks along the tube or connections32 30< th>Loss of primePump fails to draw material or requires frequent repriming32 30< th>Clogged strainerScreen is clogged with dried material and cannot be cleaned effectively32 30< th>Kinked or bent tubeTube is deformed, restricting flow or preventing full submersion32
Compatibility
PowrLiner / PowrTwin part 779-191 is compatible with the following models. Always confirm fitment using the correct parts diagram for your exact model and revision.
32< th>ModelComponent
PowrLiner 4900 XLT
Siphon Hose 52"
PowrLiner 4900
Siphon Hose 52"
PowrLiner 6900 XLT SP
Siphon Hose 52"
PowrLiner 6900 XLT
Siphon Hose 52"
PowrLiner 8900 XLT
Siphon Hose 52"
PowrLiner 8900
Siphon Hose 52"
PowrTwin 4900
Siphon Hose 52"
PowrTwin 6900
Siphon Hose 52"
PowrTwin 8900
Siphon Hose 52"
PowrTwin 12000 Plus
Siphon Hose 52"
Related parts commonly serviced together
Material pickup issues often involve multiple components. When replacing the siphon hose, these parts are frequently inspected or replaced at the same time.
Inlet strainer / screen
The siphon hose includes an integral strainer; if it's damaged, the hose should be replaced.
Pump inlet fitting
The fitting that connects the siphon hose to the pump may develop leaks or cracks.
Material container / pail
Ensure the pail is clean and the siphon hose is fully submerged to maintain prime.
Frequently Asked Questions
It is a 52‑inch rigid siphon hose with a screened strainer, used to draw marking material from the container to the pump on compatible PowrLiner and PowrTwin striping machines.
Common signs include cracks or leaks, the pump losing prime, reduced flow, or a clogged strainer that cannot be cleaned. A bent or kinked tube that prevents full submersion also warrants replacement.
It fits PowrLiner 4900 XLT, 4900, 6900 XLT SP, 6900 XLT, 8900 XLT, 8900; and PowrTwin 4900, 6900, 8900, 12000 Plus. Always verify with your machine's parts diagram.
After each use, flush the hose with an appropriate solvent or water to prevent material buildup. Store the machine with the hose clean and protected from kinks. Periodically inspect the strainer and tube for damage.