Every minute your crew spends fighting a cavitating pump or swapping out burned-up electric motors is a minute you are not spraying square-footage. The hydraulic Graco DutyMax HD line was engineered to crush the heaviest interior textures—Level-5 drywall mud, elastomeric fireproofing, and two-part liquid roofing—without breaking a sweat. Built around a rugged, slow-stroking hydraulic motor and direct-immersion MaxLife® pump, DutyMax HD pairs 3300 psi (228 bar) pressure with up to 3 GPM flow, letting you feed two guns through 100 ft of hose while maintaining a glass-smooth fan pattern.
Why Choose Authentic DutyMax HD Components Over Knock-Offs?
- Exact-Fit Tolerances ≫ CNC-machined threads and Buna-N seats align perfectly with the HD pump block—no leak-prone adapters.
- Extreme-Duty MaxLife® Pump ≫ Ceramic and stainless ball sets survive abrasive silica-filled compound five times longer than chromium steel copycats.
- ProConnect™ Swap-Out ≫ Pin-less pump removal lets techs drop in a spare in under 60 seconds—zero tools, zero downtime.
- QuikReel™ Hose Management ≫ Integrated hose reel prevents kinks and lets you pay out only what you need, reducing clean-up by 20 %.
- Full Graco Warranty ≫ backed by Graco.
Key Performance Specs at a Glance
Below are the hard numbers that separate DutyMax HD from the pack:
- Max Working Pressure: 3300 psi / 228 bar
- Max Flow: 3.0 GPM (DutyMax GH 300 HD) / 2.35 GPM (DutyMax GH 230 HD)
- Supported Tip Size: Single gun 0.057″, dual gun 0.043″
- Recommended Hose Length: up to 300 ft (90 m) with ½″ supply, ⅜″ whip
- Compatible Materials: latex, acrylics, block-fillers, plasters, bitumens, intumescents, and interior texture muds.
Direct-Fit & Retrofit Compatibilities
Order once and cover your entire fleet. DutyMax HD pump lowers, seals, and hydraulic filters bolt straight into:
- DutyMax GH 230 HD & GH 300 HD Standard & ProContractor carts (24W963, 24W967).
- EH 230 HD / EH 300 HD electric hydraulic models—perfect for zero-emission indoor jobs.
- Mark V HD Texture Rigs after ⅜″ NPT inlet adapter swap.
- Ultra Max II 695 upgrades that demand higher flow for SKIM™ sprays—use 243167 suction kit.
- Electric Airless Paint Sprayer 490 PC Pro carts when converting to high-build texture via HD Blue gun pack.
How Hydraulic Muscle Translates to Real-World Profits
Independent field trials in Dallas & Houston high-rise renovations timed two crews: a 5-man team on DutyMax GH 300 HD and a 6-man crew on conventional electric airless rigs. The hydraulic crew finished 9,400 ft² of Level-5 knock-down in a single shift—a 28 % productivity bump—while burning 18 % less amperage from site generators and swapping tips only once thanks to stable inlet pressure. Factor in Texas labor averages and DutyMax HD hardware pays for itself before your third 10,000 ft² tilt-wall project.
Stay Running with Stocked Repair Kits & Accessories
We warehouse every graco parts replacement you might need, from leather-PTFE graco repair kit 24X001 to full graco pump repair kits with ceramic balls and MaxLife sleeves. Drywall finishers can convert their graco drywall texture machine by adding an HD Blue texture gun, RAC X 531 tip, and 90-liter hopper—each item ships under one SKU. SprayersAndParts also carries graco oem parts for the popular graco 490 PC Pro parts series, letting you maintain trim sprayers with the same PO that buys DutyMax hydraulics. Need to cut in closets or accent walls? Bundle a battery-powered electric airless paint sprayer such as Graco Ultra Max Cordless and grab matching graco cordless paint sprayer parts—filters, FlexLiner™ bags, seals—so field techs always have consumables within arm’s reach. Finish off with color-coded graco spray tips, inline rock-catcher strainers, and pole-gun extensions to reduce ladder time by 40 %.
Three-Step Pump Swap—No Shop Visit Needed
- Relieve pressure and flip the ProConnect™ lever to unlock the pump.
- Slide out the worn lower; insert the MaxLife replacement until clicks seat.
- Prime for 30 seconds, set SmartControl to 2100 psi, and pull a test pass. You’re back in business—total wrench-time, under 2 minutes.
Pro Tips for 10,000-Hour Pump Life
- Log hours in BlueLink™; rebuild packings every 250 spray hours.
- Flush daily with the gentlest solvent that dissolves your coating—avoid hot lacquer thinner on PTFE seals.
- Store the pump wet in Pump Armor™; corrosion risk drops by 80 %.
- Keep separate bins: blue for electric airless paint sprayer parts, red for hydraulic components—techs find kits in seconds.
Same-Day Shipping
- Qualified Orders placed and confirmed before 12 PM ship today directly from graco warehouse same day or in 2-Days.
Ready to Muscle Through Thick Texture and Tight Deadlines?
Click Add to Cart for your DutyMax HD parts —so you’re back earning money tomorrow morning.
