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Iwata WS-400 Spray Guns & Parts

Which Iwata WS-400 do I have? · Versions, parts diagrams & manuals

Iwata's spec sheets carry the exploded parts diagram (Ref. numbers) and the nozzle/needle and air cap sets for each version; the operation manuals cover setup and maintenance. Match the model stamped on your gun, then find the Ref. number on the diagram.

Version Iwata documents (PDF)
WS-400 SERIES 2 BASE Spec sheet & parts diagram (01/2024)
WS-400 SERIES 2 CLEAR Spec sheet & parts diagram (01/2024)
WS-400 SUPERNOVA EVOTECH Spec sheet & parts diagram (01/2024)
Operation & parts manual (01/2024)

Date = Iwata's document revision. Links open the PDF on anestiwataamericas.com. Need help identifying your gun? Call (888) 714-1410.

About Iwata WS-400 Spray Guns & Parts · 90 products · Buying guide & FAQ

Shop Iwata WS-400 (often searched as Iwata WS400) gravity-feed HVLP/compliant spray guns, plus the nozzle/needle sets, air caps and repair parts listed in Iwata's WS-400 spec sheets. Iwata describes the WS-400 Series 2 Base as ideal for wet on wet basecoat and the WS-400 Series 2 Clear as suited to a wide range of clearcoat work. Iwata also states these guns meet EPA NESHAP 40 CFR, Part 63 Subpart 6H. Not sure which code you need? Call 888-714-1410.

Choosing a nozzle size and air cap

Each Iwata nozzle size is sold as a nozzle/needle set, and each family uses its own air cap set:

  • WS-400 Series 2 Base (air cap sets 93008310 for WS-400-02-OBS and 93018140 for WS-400-03-BF): The OBS setups are for Type A wet on wet application and the BF setups are for Type B wet on wet application. Nozzle/needle sets are 1.3 OBS-0 (93008930, humid climate), 1.3 OBS (93008340, standard), 1.3 OBS+1 (93008990, dry), BF-S (93018150, standard) and BF-40 (93021390, hot & dry/extreme). Iwata's standard climate range is 59-86° F (15-30°C) at 30%-75% RH.
  • WS-400 Series 2 Clear (air cap set WS-400-03, 93009030): These are high delivery (HD) nozzle/needle sets: 1.2 HD Control (93009140), 1.3 HD Standard (93009060), 1.4 HD Speed (93009160) and 1.5 HD High Speed (93009180). Iwata lists fluid flow from 220 mℓ/min (1.2 HD) to 280 mℓ/min (1.5 HD).
  • WS-400HD Supernova (air cap set WS-400-01, 93505300): Nozzle sizes are 1.2HD, 1.3 (OBS), 1.3HD, 1.4HD and 1.5HD. Iwata calls it the standard for clear coats.

Finding the right replacement part

Open the exploded diagram in the Iwata spec sheet for your gun family and find the part's Ref. number, such as 7 for the air valve seat assy, 8 for the air valve, 11 for the fluid needle spring assy or 16 for the trigger. Then match the Iwata code beside that Ref. number to the code on our listing. Codes differ between families. For example, the Ref. 6 pattern adjust knob is 93008140 (blue)

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  • Iwata 2714 WS-400 Series 2 (SR2) Spray Gun Kit, 1.4 HD Nozzle, Gravity Feed
    $837.33
    $837.33
  • Iwata 2712 WS-400 Series 2 (SR2) Spray Gun Kit, 1.2 HD Nozzle, Gravity Feed
    $834.95
    $834.95
  • Iwata 2715D WS-400 SR2 Kit, 1.5mm HD Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2714D WS-400 SR2 Kit, 1.4mm HD Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2713D WS-400 SR2 Kit, 1.3mm HD Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2712D WS-400 SR2 Kit, 1.2mm HD Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 930357A0 Trigger Locking Clip for LS-400 / WS-400 Series 2 Gravity Spray Guns (DPG-1 Trigger Lock Clip) — Ref. 29 on Iwata parts diagram
    $8.06
    $8.06
  • Iwata 930114A0 Digital Pressure Gauge for LS-400 / WS-400 Series 2 Gravity Spray Guns (DPG-1-PSI) — Ref. 28 on Iwata parts diagram
    $259.07
    $259.07
  • Iwata 93538600 Universal Spanner for LS-400 & WS-400 Series 2 Spray Guns (Century Series Gun Wrench) — Ref. 24 on Iwata parts diagram
    $22.20
    $22.20
  • Iwata 93512741 Torx Socket Countersunk Head Screws for WS-400/LS-400 Series 2 (WS/LS TORK HEAD SCREWS) — Ref. 19 on Iwata parts diagram
    $17.27
    $17.27
  • Iwata 93008890 Trigger for LS-400 Series 2 Base, WS-400 Series 2 Base & Clear Spray Guns (WS/LS-400 TRIGGER) — Ref. 16 on Iwata parts diagram
    $39.97
    $39.97
  • Iwata 93008872 Air Adj. Assy for WS-400 Spray Gun — Ref. 15 on Iwata parts diagram
    $71.13
    $71.13
  • Iwata 93001790 Air Valve Shaft for LS-400 Series 2 Base, WS-400 Series 2 Base/Clear, WIDER1L — Ref. 14 on Iwata parts diagram
    $22.46
    $22.46
  • Iwata 93008150 Fluid Adjusting Knob (Blue) for WS-400 Series 2 Base (WS/LS-400 FLUID ADJ KNOB) — Ref. 13 on Iwata parts diagram
    $24.75
    $24.75
  • Iwata 93505823 Fluid Adjusting Screw for LS-400 and WS-400 Series 2 (LS/WS400 FLUID ADJ SCREW ASSY) — Ref. 12 on Iwata parts diagram
    $32.94
    $32.94
  • Iwata 93002820 Fluid Needle Spring Assembly for LS-400 / WS-400 Series 2 & WIDER1L (WS200 NEEDLE SPRING SET) — Ref. 11 on Iwata parts diagram
    $22.46
    $22.46
  • Iwata 93008840 Fluid Adj. Guide Assy for LS-400 Series 2 Base, WS-400 Series 2 Base & Clear (WS/LS-400FLD ADJ GUIDE) — Ref. 10 on Iwata parts diagram
    $47.92
    $47.92
  • Iwata 93001700 Air Valve Spring for LS-400 & WS-400 Series 2, WIDER1L (WS200 AIR VALVE SPRING) — Ref. 9 on Iwata parts diagram
    $16.30
    $16.30
  • Iwata 93001690 Air Valve for LS-400 Series 2 Base, WS-400 Series 2 & WIDER1L (WS200 AIR VALVE) — Ref. 8 on Iwata parts diagram
    $32.56
    $32.56
  • Iwata 93008140 Pattern Adjustment Knob (Blue) for WS-400 Series 2 Base (WS-LS-400 PATTERN ADJ KNOB) — Ref. 6 on Iwata parts diagram
    $28.14
    $28.14
  • Iwata 93008420 Pattern Adjustment Assembly for LS-400 and WS-400 Series 2 (WS-LS-400 PATTERN ADJ ASSY) — Ref. 5 on Iwata parts diagram
    $63.91
    $63.91
  • Iwata 93001410 Self Adjusting Needle Packing for LS-400/WS-400 Series 2 (WS200 Needle Packing) — Ref. 3 on Iwata parts diagram
    $43.33
    $43.33
  • Iwata 93008330 Air Cap Ring for WS-400 Series 2 / LS-400 Series 2 (WS/LS-400 AIR CAP RING) — Ref. 1-1 on Iwata parts diagram
    $70.01
    $70.01
  • Iwata 93018140 Air Cap Set 03-BF for WS-400 Series 2 Base (WS/LS-400 Air Cap Set) — Ref. 1 on Iwata parts diagram
    $157.83
    $157.83
  • Iwata 93008310 Air Cap Set 02-OBS for WS-400 Series 2 Base Gravity Spray Gun (WS/LS-400 Air Cap Set) — Ref. 1 on Iwata parts diagram
    $157.83
    $157.83
  • Iwata 93021390 Nozzle Needle Set BF-40 for WS-400 Series 2 Base Spray Guns (WS/LS-400 Needle Nozzle) — Ref. 2-1 on Iwata parts diagram
    $178.93
    $178.93
  • Iwata 93018150 Fluid Nozzle + Fluid Needle Set BF-S for WS-400 Series 2 Base (WS/LS-400 NEEDLE NOZZLE) — Ref. 2-1 on Iwata parts diagram
    $178.93
    $178.93
  • Iwata 93008990 Fluid Nozzle + Fluid Needle Set OBS+1 for WS-400 Series 2 Base Spray Gun (1.3 OBS+1 Needle Nozzle) — Ref. 2-1 on Iwata parts diagram
    $152.04
    $152.04
  • Iwata 93008340 Fluid Nozzle + Fluid Needle Set for WS-400 Series 2 Base (1.3 OBS Needle Nozzle) — Ref. 2-1 on Iwata parts diagram
    $175.67
    $175.67
  • Iwata 93008930 Fluid Nozzle + Fluid Needle Set for WS-400 Series 2 Base Spray Gun (OBS-0) — Ref. 2-1 on Iwata parts diagram
    $175.67
    $175.67
  • Iwata 2921 WS-400 Series 2 (SR2) Spray Gun Kit, BF40 Setup, Gravity Feed
    $837.33
    $837.33
  • Iwata 2920 WS-400 Series 2 (SR2) Spray Gun Kit, BFS Setup, Gravity Feed
    $837.33
    $837.33
  • Iwata 2918 WS-400 Series 2 (SR2) Base Spray Gun Kit, 1.30 BS+1 Nozzle, Gravity Feed
    $837.33
    $837.33
  • Iwata 2917 WS-400 Series 2 (SR2) Base Spray Gun Kit, 1.30 BS Nozzle, Gravity Feed
    $837.33
    $837.33
  • Iwata 2916 WS-400 SR2 Kit, 1.30mm BS-O Nozzle
    $837.33
    $837.33
  • Iwata 2921D WS-400 SR2 Kit, BF40 Nozzle (SR2D)
    $910.99
    $910.99
  • Iwata 2920D WS-400 SR2 Kit, BFS Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2918D WS-400 SR2 Kit, 1.30mm BS+1 Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2917D WS-400 SR2 Kit, 1.30mm BS Nozzle (SR2D)
    $931.46
    $931.46
  • Iwata 2916D WS-400 SR2 Kit, 1.30mm BS-O Nozzle (SR2D)
    $931.46
    $931.46
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