Graco Ultimate Mx 695 Hi-Boy - Sprayer Pump Breakdown (246428)

Graco Ultimate MX 695 Hi-Boy Pump Breakdown (246428) Parts Guide

Originally engineered as the Sherwin-Williams–exclusive “Ultimate MX” edition of Graco’s Ultra Max II 695, this rig pairs a 2 hp brushless DC motor to an Endurance Chromex™ pump that outlasts standard chrome rods by up to 2× sprayed gallons. With a working ceiling of 3300 psi and a free-flow rating near 0.95 gpm, the 695 Hi-Boy chews through heavy block-fill, intumescent coatings and multi-color finishes without breathing hard. SmartControl 4.0 holds fan pattern even when voltage sags, while BlueLink™ telemetry lets supervisors pull gallon counts and location pings from a phone.

Factory Pump Breakdown 246428—Your Wear-Zone Lifeline

The displacement pump tagged 246428 is the heart of every Ultimate MX 695 Hi-Boy and cross-fits newer Ultra Max II 595/490/395 as well as rental-fleet staples like the GX 390. A fresh wet-end restores full pressure in minutes thanks to Graco’s ProConnect™ swap-out bolts—just three fasteners and you are back on-line before the masking tape comes off.

Key Performance Specs

Top-Moving Parts in Stock & Ready to Ship

• 246428 Endurance Chromex™ Pump – full stainless wet-end with carbide seats.
• 17C718 Pump Assembly – pre-primed replacement matches 390/395/490 chassis.
• 287030 Piston & Packing Kit – restores pressure after 750-gallon duty cycle.
• 246173 Suction Tube & Filter Kit – wide-bore tube maintains feed with heavy texture.
• 15C811 SmartControl PCB – plug-n-play board pre-calibrated to 0-3000 psi curve.
• 24J542 BlueLink™ Module – enables job-site telemetry in legacy frames.

Cross-Compatibility & Upsell Pathways

Need a backup gun? The RAC X™ LP 517 guard that ships with every 695 also threads onto graco truecoat 360 VSP parts, Graco X7 and LTS 17 diagram and parts, and even the heavy-duty graco GMax 7900 gas rig—giving crews one universal guard to rule them all. Meanwhile, our hose couplers match both ProContractor and small-shop graco 395 sprayer parts, keeping truck stock simple when you service mixed fleets.

Maintenance Blueprint for 2× Pump Life

Before Every Shift – Lube throat packing with TSL™ and verify prime-ball action.

At 250 Hours – Swap inlet strainer, torque pump bolts to 60 in-lb, clean motor brushes.

At 500 Hours – Install fresh graco machine parts seal kit and record pressure loss baseline.

Annually – Replace displacement pump 246428, pressure-test to 3000 psi, update BlueLink hours.

Keep a laminated service log on the frame; our customers report a 42 % drop in unplanned downtime after adopting QR-code maintenance tags.

Pro Tips for the Ultimate MX 695 Hi-Boy

• Color-code bins—blue for electronics, red for wet-end, yellow for filters—to cut pick errors by 50 %.
• Store a spare SmartControl board inside the toolbox; lightning strikes fry electronics more than pump rods.
• Use 60-mesh manifold filters for block-fill and swap to 100-mesh when spraying fine-finish lacquers.
• Pair the 695 with a 50-foot whip hose to reduce trigger fatigue and extend tip life by 20 %.

Ready to Restore Peak Performance?

From the legendary 246428 Endurance Chromex pump to precision ground carbide seats, everything you need to keep your Ultimate MX 695 Hi-Boy earning money is on the shelf. Add genuine parts to your cart now and feel the uptime difference on tomorrow’s jobsite.