Collection: Graco LineLazer 3400 Parts

Which Graco LineLazer 3400 do I have? · Versions, model numbers & manuals

Graco has built several versions of the LineLazer 3400. Find the model or part number on your unit's label and match it to a row below. Parts can differ between versions, so check the manual for your version before ordering.

Version	Model / part numbers	Graco manual
LineLazer 3400 Airless Line Striper	25M224, 25P341, 2012214	Service manual 3A4587 (rev. J)
LineLazer 3400	248861	Operation manual 311086 (rev. K) Service manual 311019 (rev. R)

Links open the PDF on graco.com. Need help identifying your version? Call (888) 714-1410.

About Graco LineLazer 3400 Parts · 165 in stock · Manuals · Buying Guide · FAQ

Every replacement part for the Graco LineLazer 3400 line striper — both generations — ships direct from Pittsburgh Spray Equipment . Genuine OEM only. Same-day part identification: call (888) 714-1410, email sales@pittsburghsprayequip.com, or text a photo of your ID plate to (833) 670-5756.

Which Generation Do You Have?

Graco produced the LineLazer 3400 in two generations. Many parts differ significantly — verify your generation before ordering.

	1st Generation	2nd Generation
Machine part number	248861	25M224
Approx. model years	~2005–2013	2014–present
Pump	Endurance 246428	Endurance II 17C718
Engine	Honda GX160	Honda GX160

The Graco serial number is on the frame near the engine mount. If unsure, text a photo of the ID plate to (833) 670-5756 for same-day identification.

Owner's Manuals

1st Generation Repair Manual (311019) — repair + parts diagrams
2nd Generation Service Manual (3A4587) — full owner + parts diagrams
Endurance Pump 246428 Manual (309250) — 1st gen pump service

Video · Common Repair Categories · Why Buy from PSE · FAQ

Graco 3400 Overview Video

Our walkthrough of the LineLazer 3400 line striper — features, use cases, and what to look for when buying used.

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 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

Genuine OEM parts shipped from Graco
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

My LineLazer 3400 won't prime — where do I start?
Nine times out of ten it's the inlet strainer clogged with dried paint. Pull it, clean or replace, and re-prime. If the pump still won't build pressure, next check the pump packings (rebuild kit 244-194 for 1st gen). The pressure-adjustment knob has a bleed valve — it must be closed.

Are 1st gen and 2nd gen LineLazer 3400 parts interchangeable?
Some are: hoses, LineLazer guns, HD tips, wheels, and Honda GX160 engine parts fit both. Pump internals do NOT interchange — 1st gen uses the Endurance pump (246428), 2nd gen uses the Endurance II (17C718). Frame parts and gun rods also differ.

What Honda engine oil does the LineLazer 3400 take?
Honda GX160 spec: SAE 10W-30 or 5W-30, API service SJ or later. Capacity about 0.6 quart. Honda recommends oil changes every 50 hours of run time.

How do I identify my LineLazer 3400 serial number and generation?
Two labels: one on the frame near the engine mount (Graco serial), the second on the engine itself (Honda serial). Use the Graco model number to determine generation: 248861 = 1st generation, 25M224 = 2nd generation.