The site sells Helix pump-end parts as individual products, not on a diagram: repacking kit 558981, upper packing 0509123A, lower seal 0558582A, ring seal spacer 805-551, upper seal retainer 0138899, piston rod 0558564A and inlet cage 138411. Each listing states its own fitment, so check it against your model and confirm by phone.
The Helix VR 2.3 is not a fine finish sprayer. It is an electric, heated, plural-component proportioner: two pumps meter two coating components, usually for two-part products such as polyurea, polyaspartics and epoxies, so that they reach the gun in the right ratio. The pump end is where those components are pressurized, which makes its packings and seals the parts that decide whether the ratio and the pressure hold. This guide covers the pump-end parts the site sells for the VR 2.3 and the Helix FR.
What the Helix fluid section is
Titan describes the VR 2.3 as an electric dual-pump system, with the two pumps electronically controlled and in continual communication to hold the ratio, which can be set anywhere from 1:1 to 1:4. Titan lists Quad+ self-adjusting packings and Quick Change Fluid Sections among its features. The Helix FR is the fixed-ratio (1:1) sibling, and the descriptions of it mention an EasyOut fluid section that keeps the pump isolated from its environment and fixed wipers that clean the piston rod.
A word on where to shop. The site has no Helix parts diagram pages, so you cannot open a numbered drawing as you can for a MultiFinish 440. Helix parts are individual product pages, and you reach them by part number, through search, or from the Titan Parts List category. Each page carries a fitment line from the catalog, and that line is what you check against your machine.
Packings and seals
As with any piston pump, the packings seal the piston rod so the pump can build pressure. Worn packings show up as leaking, material where it should not be, or pressure that will not hold. Here is what the site lists, with the fitment each listing states:
Helix pump-end packings and seals sold on the site
| Part | Name | Fitment as listed |
|---|---|---|
| 558981 | Repacking Kit | Helix FR, Helix VR |
| 0509123A | Upper Packing Assembly | Helix FR28, VR2.3 |
| 0558582A | Lower Seal Assembly | Helix FR, Helix VR |
| 805-551 | Ring Seal Spacer | Helix FR, Helix VR series, fluid section sealing and spacing |
| 0138899 | Helix Upper Seal Retainer | Helix FR, Helix VR |
| 805-545 | Seal Retainer | Helix FR, Helix VR, and also listed for Impact 1040 and 1140 models |
| 0509511 | Lower Support Ring | Helix FR, Helix VR, and also listed for several other Titan and SprayTech models |
Fitment is copied from each product page's fits field. Where a part is also listed for other models, it is a shared part.
We do not list what is inside the 558981 repacking kit, because the contents are not something to guess at. If you are repacking the pump, ask our parts team on (713) 931-0006 which of the parts above the kit already includes, so you do not order the same seal twice or discover a missing one with the pump open. Note that 0509123A lists Helix FR28 and VR2.3 only, which is narrower than the other parts in the table that simply say Helix FR and Helix VR.
Piston rod, valves and cage
- 0558564A Piston Rod, listed for Helix VR and Helix FR. The rod runs through the packings, so a scored or worn rod will damage new packings. Inspect it whenever the pump is open and replace it rather than fit new seals onto a damaged one.
- 138411 Cage Inlet, 3/4 in. Ball, listed for Helix VR and Helix FR. An inlet valve that does not seat shows up as pulsing, lost pressure or a pump that will not prime.
On a two-component machine, treat a pressure or priming problem on either side as a reason to stop and read the manual before you buy parts. We do not reproduce a troubleshooting table for the Helix here. Titan's manual is the place for it.
Wear and service: what we cannot tell you
Titan does not publish a service interval for the Helix packings that we could verify, so we do not give hours or gallons. We also do not give repack steps, throat-seal fluid or flush procedures, which belong in the model manual. The Helix VR, FR and LP manuals are on the manuals page. Replace parts on inspection and symptoms, following the manual.
Fitment: VR, FR and LP
The Helix family has three members on the site: the VR 2.3 (variable ratio), the FR (fixed 1:1) and the LP (a low-pressure spray foam proportioner). The packing parts above are listed for the VR and FR. The Helix LP is separate: its fluid section assembly (0138032A) and pump block (0138646A) are listed for the LP only. Do not move parts between the families on the strength of a similar name.
Read your data plate
Write down the model and serial number, including whether it is a VR 2.3, an FR or an FR28, as the upper packing is listed for the FR28 and VR2.3 specifically.
Check the fitment line
Open the product page and read the fits field. If your model is not named, do not order on a guess.
Confirm by phone
Call (713) 931-0006 with the model and serial number. Other kits are under Titan Repacking Kits and Pump Service Kits, but a kit for another pump is not the Helix kit.
Helix pump-end parts listed above:
The Short Version
The Helix pump end is sold part by part, with no diagram. Match your model to the fitment line on each page, ask about the contents of repacking kit 558981 before you buy, and follow the Helix manual for pressure relief and repack steps.
Not sure a part fits your Helix?
Call (713) 931-0006 with the model and serial number and our parts team will confirm fitment before you order.
(713) 931-0006Order by Parts Diagram