On an Impact 1040 the fluid section holds the parts that wear: upper packing 800-353A, lower packing 800-355A, wear ring 800-354, the outlet ball 9841502 and seat 0294516, and the inlet ball 51519 and seat 00310. The repacking kit is 0558740. Surge or pulsing at the gun points first at the upper packings.
The 1040 fluid section page
The Impact 1040 Fluid Section Assembly page (0552603A) lists 25 parts: packings, housings, valves and the piston. Everything in this guide comes from that page. The 1040T is a separate machine with its own catalog, so a number you find on a 1040T page is not a 1040 part unless it is also on this one.
The pump is a piston pump. The piston rod moves through packings that seal it, and two ball-and-seat valves let paint in and push it out. Titan lists the 1040 with Quad+ Packings and a PermaLife Cylinder. Titan says the cylinder never needs replacing, which leaves the packings, valves and rod as the parts you actually replace.
Packings and wear ring
Packing parts on the 1040 page
Titan's 640 and 1040 manuals agree on the symptom: excessive surge or pulsing at the gun points to worn upper packings, and the fix is to repack. Fluid leaking at the top of the fluid section can be an external fitting leak, worn packings or balls, or worn valve seats. Check the fittings first because a wrench costs nothing. We do not list kit contents here, so confirm what 0558740 contains with our parts team if you want to compare it with buying parts one at a time.
Valves and seats
1040 valve parts on the fluid section page
| Valve | Part | Number |
|---|---|---|
| Outlet | Outlet valve ball | 9841502 |
| Outlet | Outlet valve seat | 0294516 |
| Outlet | Outlet valve seal | 800-348 |
| Outlet | Outlet valve retainer and washer | 800-336 and 0507454 |
| Outlet | Upper cage | 0507452 |
| Inlet | Inlet ball | 51519 |
| Inlet | Inlet seat | 00310 |
| Inlet | Lower cage | 800-322 |
All eight appear on the 1040 Fluid Section page.
Titan's manuals tie valve wear to three symptoms: the sprayer will not prime, will not build or hold pressure, or surges. A stuck inlet ball is a prime problem and has its own manual fix. Valve seats can be reversed or replaced, so check the manual before ordering a seat. Do not replace a good ball and seat to chase a problem the tip or filters caused.
Piston and housings
- Piston rod 805-456A and piston assembly 805-247A. The rod has to be smooth. A scored rod ruins new packings.
- Upper housing 805-450, lower housing 800-352 and foot valve housing 800-305.
- 800-359 piston insertion tool, listed on the 1040 fluid section page and on its accessories page.
Lubrication
The 1040 has an AutoOiler. Titan says you push a button to deliver oil from the reservoir directly to the packings. The oiler face plate assembly is 805-250A on the 1040 Main Assembly page. Piston Lube is listed on the 1040 accessories page as 314-480 (8 oz) and 700-926. Check your 1040 manual for how much to use and when.
What to replace together
Repacking and valve work both open the fluid section, so it is common to do both at once if the packings are worn and the balls and seats are showing wear too. We cannot give an interval, because Titan does not publish service intervals for the packings or valves. The removal steps are in the 1040 manual. Do not work from a parts list alone.
Manifold filter 730-067 and bypass valve parts
Oiler face plate, controls and covers
The 1040 fluid section parts most often ordered:
−8%
The Short Version
Packings and valves are what wear in a 1040 fluid section. Pulsing at the gun points to the upper packings first, and loss of pressure points to the tip, filters, balls and seats. Use 800-353A, 800-355A and 0558740 for packings, and check the manual before opening the pump.
Not sure which 1040 part you need?
Call (713) 931-0006 with your model and serial number and our parts team will confirm the part before you order.
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