The LazerGuide 2000 LL8400 is the newer, more advanced guidance system offering improved laser accuracy and durability for high-volume commercial striping. The 1700 is an earlier generation kit suitable for standard applications. Both mount on the 3400 frame; verify your machine's production date and existing bracket compatibility before ordering.

The Graco 287482 Coil Repair Kit addresses ignition system wear typically after 200–400 operating hours, depending on maintenance and fuel quality. Symptoms include hard starting, misfiring, or stalling. Regular spark plug inspection and clean fuel reduce premature failure. Keep a kit on hand for emergency repairs on job sites.

Graco strongly recommends OEM parts (genuine Graco components) to maintain equipment warranty, pressure ratings, and spray consistency. The pinion housing, engines, and coil kits are precision-engineered to Graco specs. Aftermarket substitutes may void coverage and cause performance degradation or safety issues on pressurized equipment.

The 3300 PSI / 0.75 GPM rating is the engineered output of the 4.0 HP gasoline engine, pump, and manifold assembly combined. This spec handles standard parking lot and road striping with most paint and thermoplastic materials. High-viscosity fluids or wider spray widths may require a higher-volume unit like the LineLazer 5900; consult your fluid manufacturer's equipment sheet.

The Graco LineLazer 3400 parts manual is available on Graco's website (search 'LineLazer 3400 parts manual') or request it from Pittsburgh Spray Equipment. Always reference your serial number (found on the frame) to confirm the correct part number, as assemblies and components vary by production year. We can cross-reference your machine details to ensure accurate orders.