Graco DutyMax GH230 Hydraulic Motor & Displacement Pump Parts—Engineered to Outlast, Priced to Compete
No sprayer eats square footage faster than the DutyMax GH230. With a burly Honda® GX270 engine spinning a closed-loop hydraulic pump, this rig pushes 2.3 gpm (8.7 L min-1) at 3 300 psi through tips up to .039 in. But when a piston rod scars, a hydraulic seal weeps, or the bypass filter plugs, that productivity stops cold and expensive lift-rent minutes start ticking. Pros who bid tight schedules count on SprayersAndParts.com for serialized OEM graco sprayer parts that bolt in, prime up, and keep revenue flowing.
Our live exploded diagrams drill from the 25-micron spin-on filter down to the Viton™ bypass O-ring. One click reveals real-time shelf quantity—no “ships in six weeks” purgatory—then drops the SKU into a single, consolidated cart. Need a graco replacement pump? A press-fit crank pin? A shaft key? Available and ready to roll.
Why Choose Genuine GH230 Hydraulic Motor & Pump Parts?
- Exact Honda GX270 torque match. OEM couplings are balanced to ±10 µm run-out, preventing crank whip that shreds bearings—budget spiders rarely run that true.
- Viton® + PTFE chemistry. Factory seals shrug off 180 °F ISO-46 oil for thousands of cycles; nitrile clones swell and leak inside 200 hours.
- Laser-cut ChromeX® rods. A diffusion chrome layer resists silica fillers two turns longer than flash-chrome imports, keeping volumetric efficiency ≥ 90 % past 1 000 hours.
- 3 300 psi burst margin. Each manifold block is hydro-tested to 4 950 psi—critical during tip purge on roof-coat jobs with graco airless sprayer tips.
- Warranty intact. Mixing non-OEM parts voids Graco’s 2-year hydraulic and Lifetime Advantage Drive™ coverage—stay genuine, keep resale value.
Key Specs & Fast-Mover Kits
| Hydraulic Pump Output | 2.3 gpm / 3 300 psi |
|---|---|
| Engine | Honda GX270 9 HP OHV |
| Reservoir Volume | 1.6 gal / 6 L ISO-46 oil |
| Filter | 25-µm spin-on #246173 • bypass 15 psi |
| Pump Rod Kit | #19B201 ChromeX® stainless w/ V-Max Blue™ packings |
| Seal Kit | #248977 Viton™ piston & rod wipers |
| Coupling Set | #287879 aluminium hub + fibre spider |
Cross-Fleet Compatibility—One Parts Bin, Many Rigs
Graco’s hydraulic line is modular; stocking GH230 parts keeps an entire fleet productive:
- DutyMax GH300—identical spin-on filter, seal set and suction hose; only the engine block differs.
- GMAX 7900 Gas Airless—shares RAC X™ guard, 60-mesh strainers and pump seat; filter and coupling interchange, slashing SKU count.
- Ultra Max II 695 ProContractor—chromex rods and 60-mesh filters match; great for crews that jump between electric interior and hydraulic exterior work.
- Classic 495 PC—ball seats, gun springs and many O-rings interchange, streamlining 695 graco paint sprayer service kits.
- TrueCoat 360 Cordless—LP tips maintain fan geometry, so touch-up blades match walls sprayed by the GH230; stocking graco truecoat 360 parts keeps QC tight.
Smart Accessory Bundles—ROI in One Click
- Hydraulic Seal + Coupling Combo. Stop “ghost pressure” spikes and crank rattle in one 40-minute service.
- BlueMax II Hose Pack. 50 ft × ⅜ in main + 3 ft whip reduce pulsation, extending seal life 20 %.
- RAC X LP & FFLP Tip Box. Twelve patterns slash overspray 50 % and drop amp-draw, perfect for generator nights.
- Pump Armor® Winter Kit. One gallon anti-rust fluid + cam-lock plug; wake up spring-ready.
- 20–40 in Telescoping Pole. Our best-selling graco extension tools pair with any RAC X guard for vaulted foyers.
Five Habits for 1 000-Hour Hydraulic Pumps
• Oil every 250 hrs. ISO-46; torque drain plug 25 N·m.
• Replace spin-on filter at 250 hrs or sooner when delta-P lamp glows.
• Sample oil quarterly. >18 ppm Fe means rod scoring; schedule rebuild.
• Torque reservoir bolts monthly. 14 N·m; loose lids suck air.
• Label filters by date & hours. Sharpie on the shell kills guesswork and warranty disputes.
Add to Cart → Track → Spray Tomorrow
Open the live parts list, tick your seal pack, filter, rod and guards, then hit Add to Cart. One freight fee, one tracking link, one bullet-proof fix—see you on tomorrow’s jobsite.
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