Built as a direct-fit intake for the Ultra XT platform, Graco 20B438 replaces cracked or air-leaking lines that cause slow priming, cavitation, and pressure “hunting.”
It fits Ultra 490 XT and Ultra 495 XT sprayers in both Stand and Lo Boy configurations, so you’re not trimming generic tubing or guessing at adapters. The assembly includes: Graco's factory hose, a 60-mesh Easy-Out inlet strainer (246385) that keeps grit out of the pump, and the correct inlet O-rings (16N901 ×2, 117117) for a leak-tight seal.
Swap in minutes: depressurize, remove the worn line, seat the new set, fit the screen, tighten the clamp, then prime to confirm a steady fan pattern. It’s a small fix that protects packings, valves, and tips across latex, acrylics, and primers—exactly what you expect from quality graco airless sprayer parts. If your intake is brittle or flattened, upgrade to the factory-length graco hose and get back to spraying.
The 20B438 Suction Hose Assembly is engineered for the Ultra 490 XT and Ultra 495 XT families in both Stand and Lo Boy frames. Geometry, length, and fittings match the factory inlet, which means no cutting, heating, or “good-enough” substitutions. If your machine’s intake is yellowed, kinked, or weeping at the inlet threads, replacing the entire assembly restores airtight suction and stabilizes pressure at the gun.
The mesh rating balances filtration and flow for common architectural coatings; for very thin materials, use finer gun filters rather than changing the inlet screen.
Priming issues often come from a stack of small problems: a hardened hose wall, a flattened section near the clamp, or an O-ring that has lost elasticity. Replacing only one component can leave hidden air paths that keep your pump “hunting.” A complete, matched assembly removes those variables and returns the system to factory behavior—faster priming, steadier atomization, and fewer mid-job interruptions.
Keep one 20B438 on each service truck to turn a priming complaint into a same-shift fix. Log the install date on the frame and pair the inlet refresh with a new gun filter matched to material viscosity. When ordering paint sprayer parts, bundling screens, tip seats, and prime-valve seals with your hose assembly helps you hit free-freight thresholds and keeps downtime to a minimum.
Choose genuine assemblies from reputable sources. If you shop graco parts online, verify part number (20B438), included items (hose, 246385 strainer, 16N901 ×2, 117117), and Ultra 490/495 XT compatibility. Avoid generic hose lengths that can collapse under suction or starve the pump at higher viscosities.
If pressure still fluctuates after the new intake is installed, inspect the manifold/outlet screen, prime-spray valve, and gun filter. This is a good time to replace other wear items from your list of graco replacement parts—especially if you’re rolling into peak season or switching to heavier elastomerics.
For Ultra 490/495 XT sprayers (Stand or Lo Boy), the Graco 20B438 Suction Hose Assembly is the simplest way to restore prime-side performance. With the right hose, the right seals, and a 60-mesh inlet screen in one kit, you eliminate guesswork and get back to productive, clean spraying—job after job.
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