Graco spray parts are the components that carry coating from the pump to the surface: pressure control › manifold filter › fluid hose › whip hose › gun › gun filter › tip guard › spray tip. Every one of these affects finish quality. The single most useful principle across all of them comes from Graco directly: spray at the lowest pressure at which atomization occurs — it reduces overspray and extends the life of both tips and pump.
Most parts guides organize by component type. This one follows the coating itself — from the moment it leaves the pump to the moment it hits the surface — because that path is where finish quality is actually decided, and because a problem at any single stage shows up as a symptom that looks like it came from somewhere else entirely.
1. The Spray Path, Stage by Stage
Pressure Control Dial
Manifold Filter
2. Hoses & Whip Hoses
The fluid hose delivers a steady stream of high-pressure coating to the gun. Graco's BlueMax II and XTreme-Duty airless hoses are built for flexibility and durability under sustained pressure.
The whip hose is the component most owners underestimate: a short (typically 3 ft) flexible section between the main hose and the gun. It absorbs the mechanical stress of every directional change you make while spraying. Without one, that stress transmits straight into the main hose connection, accelerating wear at the joint — and it noticeably increases operator fatigue over a full day.
| Component | Part Number | Notes |
|---|---|---|
| Suction Hose Kit | 246386 | Fits 390, 395, 490, 595, 695 — genuinely cross-platform |
| Suction Hose Kit | 249356 | LineLazer 3400; includes garden hose washer 115099 |
| Gun Inlet Adapter | 195384 | Model-specific fitting |
| Return Hose Assembly | 244240 | Varies by cart configuration |
Run a gloved hand slowly along the full length while pressurized and pointed safely away from people. Any pinhole makes itself immediately obvious — and a pinhole at 3,000 PSI sprays coating in a direction you didn't intend.
3. Spray Guns
The gun is where the operator controls flow. Graco's airless guns split into the SG-series (homeowner and prosumer) and the Contractor/FTX line (contractor grade), and the two families use different internal repair kits despite similar external appearance.
| Component | Part Number | Notes |
|---|---|---|
| Contractor PC Gun with RAC X LP 517 SwitchTip | 17Y043 | Ships paired with a low-pressure tip |
| Contractor PC Gun with RAC X 517 SwitchTip | 17Y042 | Standard RAC X pairing |
| SG2 Metal Spray Gun | 243011 | Ships with most Magnum models |
| SG3 Metal Spray Gun | 243012 | Drop-in upgrade — adds swivel, 4-finger trigger |
| Gun Repair Kit | 288817 | SG2, SG3, SG20, SGPro |
| Gun Repair Kit | 288488 | Contractor, FTX |
| Gun Filter, 60-mesh | 288749 | Standard latex — fits all Graco guns |
| Gun Filter, 100-mesh | 288750 | Fine finish — fits all Graco guns |
Guns shipped with professional-grade sprayers typically come with a swivel already attached. Adding a 3 ft whip hose at the gun end is the standard next step contractors take for increased flexibility.
4. Spray Tips & Tip Families
Graco produces RAC (Reverse-A-Clean) tips in roughly 200 sizes, and every tip is 100% factory-tested for flow rate. The reversible design lets you clear a clog by rotating the tip 180 degrees and triggering — without removing the guard and housing.
| Tip Family | What It's For | Distinguishing Feature |
|---|---|---|
| RAC X SwitchTip | General-purpose contractor work | Reversible, ~200 sizes available |
| RAC X Fine Finish Low Pressure (FFLP) | Fine finish — cabinets, trim, millwork | Sprays at up to 50% lower pressure with full atomization |
| WideRAC | Large flat commercial surfaces | 24-inch fan — covers the same area in 3 passes instead of 6 |
| XHD RAC | Texture, elastomeric, heavy coatings | Oversized gray handle for rotation under thick material |
Because tip and pump wear are both driven by pressure, RAC X Low Pressure tips spraying at half the usual pressure can double tip life and extend pump life — while simultaneously producing less overspray and less wasted material. This is one of the few upgrades that improves finish quality and reduces cost at the same time.
| Common Tip | Part Number | Typical Use |
|---|---|---|
| RAC X 515 | LTX515 | Standard interior latex |
| RAC X 517 | LTX517 | Interior/exterior workhorse |
| RAC X 519 | LTX519 | Exterior siding, light elastomeric |
| RAC X 415 | LTX415 | Interior walls, deck stain |
| RAC X 315 (.015 orifice, 6-in pattern) | LTX315 | Narrower fan, thicker mil build |
| Fine Finish LP 310 | FFLP310 | Varnish, lacquer, precise trim |
| Fine Finish LP 208 | FFLP208 | Fine finish, thin coatings |
5. Tip Guards & Seals
The guard is a mandatory safety component, not an optional accessory. Airless fluid at 3,000+ PSI can penetrate skin and cause injuries requiring surgical treatment — the guard's shroud deflects the pattern if a hand comes near the tip.
It also has a functional role: a cracked guard creates an inconsistent seal that affects both spray pattern and tip life. Guards crack from repeated solvent flushing, UV exposure on exterior jobs, and being dropped or stepped on.
| Component | Part Number | Notes |
|---|---|---|
| RAC X Tip & Guard Combo, .015 | 246215 | Tip pre-paired with its guard |
| Trigger Guard | 195495 | Broadly compatible across models |
| Sleeve Seal | 179733 | Gun body to handle seal |
Switching between tip systems requires changing the tip guard assembly, not just the tip. RAC X OneSeals are designed specifically for use with RAC X SwitchTips and guards — using a mismatched seal is a common cause of leaks at the tip housing.
6. The Lowest-Pressure Principle
If there's one idea that ties every component in this guide together, it's this one — and it comes directly from Graco's own technical guidance: use the lowest fluid pressure at which atomization occurs.
- Less overspray — more of the coating lands on the surface instead of drifting into the air
- Longer tip life — orifice wear is driven by abrasive flow velocity, which pressure directly controls
- Longer pump life — lower operating pressure reduces cumulative stress on packings and the fluid section
- Lower material cost — reduced overspray means fewer gallons per job
The practical method: start pressure low, increase gradually while watching the fan pattern on a test surface, and stop as soon as the tails at the pattern edges disappear. That point — not higher — is your working pressure.
Shop Every Stage of the Spray Path
Hoses, guns, filters, tips, and guards — all genuine Graco OEM, shipping same business day.
Shop Spray Gun Parts Shop Tips & GuardsShop the Parts You Need
−37%
Frequently Asked Questions
What pressure should I spray at with a Graco airless sprayer?
Graco's guidance is the lowest fluid pressure at which atomization occurs. Lower pressure creates less overspray and makes tips and pump components last longer, saving money on both materials and equipment.
What is a RAC X Low Pressure tip and why does it matter?
RAC X Fine Finish Low Pressure and Low Pressure SwitchTips spray at up to 50% lower pressure with complete atomization. Since wear is pressure-driven, this can double tip life and extend pump life while reducing overspray.
Why do reversible RAC tips clear clogs so easily?
They rotate 180 degrees into a clean position — triggering the sprayer blows the clog backwards out of the orifice. The design also lets you replace the tip without removing the guard and housing.
What is a whip hose and do I need one?
A short flexible hose section (usually ~3 ft) between the main hose and gun. It absorbs directional stress during spraying, reducing operator fatigue and preventing wear at the main hose connection.