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Wunder-Bar FR-28-E EPDM O-Ring for Ceramic Cylinder Manifold Seal
$0.55$2.49Save 78%
Bar Gun Parts
Replacement parts for Wunder-Bar, Taprite, and Multiplex bar guns and soda guns — button caps, nozzles, diaphragms, O-rings, syrup lines, triggers, holsters, and complete repair kits. Match by OEM part number; most in-stock orders ship same day before 2pm CT.
Bargun Oval Snap-On Button Cap, Water - PH10-77-501
$0.60$2.49Save 76%
Bargun Button Cap, Round, Tea, Brown Cap, White Letter - PH10-74-159
$0.65$2.36Save 72%
Wunder-Bar 'Org' Button Cap - Round Orange with Black Lettering
$0.65$2.36Save 72%
Bargun Button Cap, Round, Lemon, Yellow Cap, Black Letter - PH10-74-103
$0.65$2.36Save 72%
Bargun Button Cap, Round, Diet, Blue Cap, White Letter - PH10-74-069
$0.65$2.36Save 72%
Wunder-Bar Flow Regulator O-Ring - Soda Gun Internal Seal
$2.74$3.43Save 20%
Wunder-Bar Series II Blue Push-On Nozzle - Replacement Part
$2.34$4.23Save 45%
Wunder-Bar Bargun Parts Kit Standard & Flow Regulated - M4-PARTS
$260.71$318.85Save 18%
Bargun Button Cap, Round, Zero, Black Cap, White Letter - PH10-74-287
$1.99
Wunder-Bar O-Ring for Interconnect Input Fitting - EPDM
$0.40$2.49Save 84%
3/8" Barb x Wunder-Bar Inlet Fitting - 1.5" Short Stainless Steel Soda Gun Adapter
$1.77$3.01Save 41%
Taprite Red Bargun Nozzle - Replacement Diffusion Head
$2.89$8.77Save 67%
Bargun Button Cap Round, Ginger, Green Cap White Letter
$0.59$6.47Save 91%
Wunder-Bar Bargun Adjusting Screw O-Ring - FR-13-E
$0.40$2.49Save 84%
Wunder-Bar PH10-73 Round Snap-On Bargun Button - Replacement Part for M4000 & Post-Mix Soda Guns
$0.39$2.49Save 84%
Wunder-Bar 'Pine' Button Cap - Round Yellow with Black Lettering
$0.65$2.36Save 72%
Wunder-Bar Right-Hand 3-Hole Butterfly Plate - Soda Gun Part
$4.79$6.76Save 29%
Wunder-Bar Left-Hand 3-Hole Butterfly Plate - Soda Gun Part
$4.79$6.76Save 29%
Wunder-Bar Bargun Butterfly Plate, 1 Hole, Right Hand - PH10-9-1HR
$4.79$6.76Save 29%
Wunder-Bar Bargun Bottom Plate, 10 Button, Black - PH10-27
$1.65$6.93Save 76%
Bargun Button Cap, Round, Zero, Green Cap, White Letter - PH10-74-296
$0.65
Wunder-Bar 'Ginger' Button Cap - Round White with Black Lettering
$0.65
Bargun Button Cap, Round, Ginger, Green Cap, White Letter - PH10-74-084
$0.65
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Wunder-Bar & Taprite bar gun and soda gun parts
Keep your post-mix bar guns and soda guns pouring with genuine replacement parts for Wunder-Bar, Taprite, Multiplex, and compatible systems. This catalog covers the full wear-and-tear list a working bar runs through — button caps and ID caps, nozzles and diffusers, diaphragms, O-rings and seals, syrup lines, triggers and levers, holsters and hangers, drip cups, and complete rebuild kits. Whether you run a single gun behind one bar or service dozens across an account, you can match the exact part instead of replacing the whole gun.
Match by OEM part number — built for service techs
Every listing carries the manufacturer part number (PH-, PM-, FR-, and 12Q- series for Wunder-Bar and Taprite) so field techs can cross-reference a worn component in seconds. Know the series before you order: Wunder-Bar guns run across Series II, Series 2.5 & III, and Mark 4 (M4), and nozzles, diffusers, and manifolds are not always interchangeable between them. If you are not sure which generation you are working on, the interactive Mark 4 parts diagram on our Bar Guns page maps each callout to the matching part.
Soda gun buttons, caps & flavor ID
Flavor button caps are the most-replaced part on any soda gun — they crack, fade, and get swapped as menus change. We stock round and oval snap-on ID caps in the standard flavor set (Coke, Diet, Sprite, water, soda, tonic, and more) plus blanks, in both Wunder-Bar and Taprite fitments. Buy the single cap you need or a full set to re-label a gun.
Bar gun & soda gun parts — FAQs
What soda gun parts do you carry?
Button caps and ID caps, nozzles and diffusers, diaphragms, O-rings and seals, syrup lines, triggers, holsters and hose hangers, drip cups, input manifolds, and complete rebuild kits for Wunder-Bar, Taprite, Multiplex, and compatible bar guns.
How do I know which Wunder-Bar series my gun is?
Wunder-Bar guns fall into Series II, Series 2.5 & III, and Mark 4 (M4). The series is usually marked on the gun body or manifold. Nozzles, diffusers, and manifolds differ between series, so confirm yours before ordering — the Mark 4 parts diagram on our Bar Guns page shows each component by callout number.
Are these genuine Wunder-Bar and Taprite parts?
Yes — we stock OEM Wunder-Bar and Taprite components, listed by manufacturer part number so you can match the exact part you are replacing.
Do soda gun button caps fit both Wunder-Bar and Taprite guns?
Most round and oval snap-on ID caps share fitment across Wunder-Bar and Taprite guns, but check the individual product listing for the specific fitment and shape (round vs. oval) before ordering.
How fast do parts ship?
Most in-stock parts ordered before 2pm CT ship the same business day.