Graco UltraMax II Mark V Series A Control Box Parts List

Graco UltraMax II Mark V Series A Control Box Parts: OEM Guide & Support

The Graco UltraMax II Mark V Series A is one of Graco’s flagship electric airless sprayer platforms—engineered to deliver up to 1.5 gpm at 3,300 psi thanks to its powerful Xtreme-Torque motor and long-life Endurance Vortex pump. The control box, or electronic brain of the Mark V, houses critical components such as the display panel, switches, gaskets, power connectors, and pressure transducer. Keeping it in top shape means sourcing exact paint sprayer parts built for this system.

Why OEM Control Box Parts Matter

• Exact tolerances and fit: Factory-engineered parts, like the gasket (#15D036) or panel assembly (#15C840), ensure tight seals and accurate performance 

• Electrical integrity: Switches (e.g. #120059 rocker type) and connectors are certified for continuous load and humidity exposure.

• Hydraulic safety: Control box interactions with fluid circuits require O-rings and seals (like #111699 valve seat gasket or #15C766 diffusion tube) rated for 3,300 psi operations.

• Warranty preservation: Graco warranty is maintained only when genuine OEM parts, like those used in control box rebuilds, are installed.

Control Box Parts Inventory (Series A)

SprayersandParts.com provides all genuine components used in the UltraMax II Mark V Series A control box:

• Power switches and rocker assemblies (#142, #120059)

• Control box housing (#61, part box assembly)

• Display or label panel (#68, panel control)

• Panel gasket (#70, control box gasket)

• Diffusion tube kit (#74, including parts #73 and #74)

• Auto-clean priming valve kit (#80 including gaskets/seats 80a/80b)

• Manifold spacer, hydraulic fittings, sensor grommets (#113, #118)

• Electronics connectors and strain relief bushings (#143, #144)

• Misc screws, plugs, and warning tags included with part diagrams.

Each listing is cross-referenced to part numbers and standard Mark V serial ranges for model-match confidence. A downloadable parts diagram gives visual context for fast ordering and install.

Broader Compatibility & Use Across Your Fleet

Even if you also operate other sprayers—like a graco electric paint sprayer, a graco magnum x7, or graco fine finish sprayers—maintaining the Mark V control box ensures compatibility and workflow continuity:

• Shared spray tips systems (e.g. RAC X LP 517 or FFLP) mean consistent fan control across models.

• Having stock of complementary graco airless sprayer accessories—such as tip cleaners, hose kits, and guards—simplifies servicing multiple sprayer lines onsite.

• Magnum X7 parts (like tip guards or wands) often pair well with Mark V accessories for small-scale detail work—bridging heavy-duty sprays and fine finishes seamlessly.

This approach helps you streamline inventory and train crews more efficiently.

System Spec Overview: Mark V and its Control Assembly

The control box is compatible with Mark V models built on UltraMax II chassis across North America, including Lo‑Boy and Hi‑Boy versions 

Maintenance Guidance & Best Practices

1. Keep a clean parts diagram handy: Use the Graco parts diagram (311362A or R) to verify part IDs visually 

2. Replace gaskets/seals proactively: The control panel gasket #70 and valve seat gaskets in the primer valve often fail before hoses or pump seals.

3. Use OEM switches only: The rocker switch (#142) and ribbon wiring are engineered for safety under direct 120 V load.

4. Cross-stock relevant accessories: If using graco magnum x7 parts, keep consistency in guards, spray tips, and hoses—it speeds maintenance and reduces confusion.

5. Search for service support early: If control board faults or sensor errors occur, look up “graco pump repair near me” to find certified technicians familiar with Mark V wiring and pressure control systems.

Frequently Asked Questions

Q: Are Mark V control box parts interchangeable with other UltraMax II models?
A: Components like gasket, switch, and valve kits are shared across 695/795/1095 series, but confirm using your model’s serial and parts diagram 

Q: Can I use other model’s spray tips with the Mark V?
A: Yes—graco spray tips like the standard RAC X models (such as LP 517 or WA 1239) are compatible. Using OEM tips ensures correct flow calibration.

Q: Does this control box support fine finish applications?
A: The Mark V works well when paired with graco fine finish sprayers—by adjusting pressure mode and using smaller fan tips, you can achieve smooth finishes on cabinetry or trim.

Advantages of Stocking OEM Control Box Parts and Accessories

• Maximum uptime: Quick replacement of faulty control modules prevents costly delays.

• Durable performance: OEM electrical components reduce failure rates under jobsite conditions.

• Consistent safety: Rated to withstand fluid exposure and high PSI environments.

• Warranty compliance: Graco supports warranty claims only with genuine replacement parts.

• Parts integration: Works seamlessly with other Graco lines and shared graco airless sprayer accessories across multiple units.

Final Thoughts

The Graco UltraMax II Mark V Series A control box underpins precision, safety, and reliability in high-capacity electric airless sprayers. Keeping it maintained with authentic paint sprayer parts ensures your rig runs clean and accurate. Pairing it with matched tips, accessories, and cross-compatible components—like magnum x7 parts, fine finish sprayer items, and spray guards—simplifies your toolset and boosts field readiness.