Collection: Graco LineLazer V 3900 Parts

Common Repair Categories

• Pump service — packings, piston rods, seats, rebuild kits
• Filters & strainers — inlet strainer, gun filters
• Hoses & fittings — 50-ft airless hose, whip hose, quick-disconnects
• Guns & tips — LineLazer guns, HD RAC tips, tip guards
• Wheels & drive — front caster, rear wheels, wheel bearings, tie-rods
• Engine & throttle — Honda GX160 parts, throttle cables, spark plugs
• Seals & gaskets — pressure adjustment, o-rings, packing kits

Use the filter menu above the product grid to narrow by category.

Why Buy Genuine OEM from Pittsburgh Spray Equipment

• Authorized Graco distributor since 1944 — direct from Graco warehouses, no aftermarket
• Same-day part ID help — text a photo of your machine's ID plate to (833) 670-5756
• Financing available on machines over $1,000
• Ships direct from stocked Pittsburgh warehouse

FAQ

What Honda engine does the V 3900 use?
The Graco LineLazer V 3900 is powered by a Honda GX160 gas engine. Standard 10W-30 or 5W-30 oil, capacity about 0.6 quart, change every 50 hours of run time.

My V 3900 pump won't hold pressure — what should I check?
Start with the inlet strainer (clogged strainer is the #1 cause), then check pump packings, then the prime/spray valve seat. If pressure builds but drops fast, it's usually pump packings; if it never builds, it's the inlet or bleed valve.

Are LineLazer 3900, V 3900, and V 3900 HP parts the same?
Many parts overlap (guns, tips, hoses, wheels, Honda GX160 engine parts). Pump internals and pressure control components differ between generations. Check your Graco part number on the ID plate before ordering pump service parts.

How do I identify my LineLazer V 3900 serial number?
The Graco ID plate is on the frame near the engine mount. The Honda serial is stamped on the engine block. Use the Graco model + serial to look up your exact configuration in the owner's manual.