The official TrueCoat 360 parts diagram (document 333394M) covers models 16Y385, 16Y386, and 17A466 on one shared reference. Each numbered callout on the diagram — Ref. 1 through Ref. 26 — maps to a specific Graco part number in the accompanying table. Below is a decoded version of the most-referenced callouts, with real part numbers for each.
This is a decoded reference for the TrueCoat 360's official parts diagram — the same numbered callouts found in Graco's owner's manual (333394M), matched here to their real part numbers so you can go straight from "which piece is broken" to "which part number to order."
1. How to Read This Diagram
The diagram numbers every component in the exploded view. Some callouts apply to all models (16Y385, 16Y386, 17A466); others — mainly the pump kit — have a different part number depending on which specific model you own. Always check which model column applies before ordering.
2. Pump & Fluid Path Callouts
| Ref. | Component | Part Number | Applies To |
|---|---|---|---|
| 1 | Complete Pump Assembly | 17A217 | 16Y385, 17A466 |
| 1 | Complete Pump Assembly | 17B415 | 16Y386 |
| 2 | O-Ring | 16Y425 | All models |
| 3 | Strainer | 16W849 | All models |
| 4 | Needle Assembly Kit (includes spray tip 17A222) | 17A219 | All models |
| 5 | Pump Outlet Kit | 17A220 | All models |
| 6 | Prime/Spray Valve | 17A402 | All models |
| 7 | Prime/Spray Valve Knob Kit | 17A221 | All models |
| 9 | Spray Tips (black/12-in pattern, gray/4-in pattern) | 17A223 | All models |
| 10 | Reciprocator Assembly | 16X880 | All models |
3. Cup & Housing Callouts
| Component | Part Number | Notes |
|---|---|---|
| Cup Support | 16W846 | Replacement reservoir support |
| Flexliner Bags (32 oz, 3-pack) | 17A226 | Consumable — replace as needed with each project |
| Handheld Lid | 17B636 | When replacing, also replace refs. 2, 3, 17, 18 per the manual's guidance |
| Dual Speed Control Switch | 16X868 | DSP model (16Y386) specific |
| Sealing Plug | 16X869 | Closes unused fluid ports |
| Hinge Valve Cap | 16X806 | All models |
When replacing the handheld lid (17B636), Graco's own documentation recommends also replacing refs. 2, 3, 17, and 18 at the same time — these components wear together, and replacing only the lid without the related seals is a common reason for a repeat repair shortly after.
4. Where the Three Models Differ
The overwhelming majority of the parts diagram applies to all three models identically. The two places where model matters:
- The pump assembly (Ref. 1) — 16Y385 and 17A466 share one part number; 16Y386 (the DSP) uses a different one due to its dual-speed pump design.
- The dual speed control switch — exists only on the 16Y386 DSP model, since the base 16Y385 and the 17A466 DS variant don't have this dual-speed function.
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Frequently Asked Questions
Where can I find the official TrueCoat 360 parts diagram?
It's in the owner's manual (document 333394M), covering models 16Y385, 16Y386, and 17A466, with numbered callouts cross-referenced against a parts table.
Do all three TrueCoat 360 models use the same parts diagram?
Yes, they share the same diagram and manual since most components are identical. A few parts, mainly the pump kit, differ by model number.
What is Ref. 1 on the TrueCoat 360 diagram?
The pump kit. For 16Y385 and 17A466, it's part 17A217 (or 17A218 for just the housing). For 16Y386, the equivalent parts are 17B415 and 17B416.
What's the most commonly replaced part on the TrueCoat 360?
Spray tips (17A223) and the strainer (16W849), since both are direct-contact consumables that wear or clog with normal use.