Impact repacking kits are listed per model on that model's fluid section or drive page: 0532911 on the 340 and 400, 0552951 on the 410, 704-586B on the 440 and 540, 704-564 on the 640, 800-273 and 805-1010 on the 740 and 840, 0558740 on the 1040 and 1140, 800-730 on the 1040T and 0558785 on the 1640. Match the kit to your model's diagram, not just to its name.
How repacking kits are organised
Every Impact model has its own set of diagram pages on the site, and the repacking kit sits on that model's fluid section page. On the 340 and 400 it is on a drive assembly page instead. The kit you need depends on the model, and models that look alike can use different numbers. Two Impacts can even share some pump parts and still take different kits.
This guide lists which kit the site shows for each model. We do not describe what is inside any kit, because the contents are Titan's, and they are not something to guess. Open the kit's product page, or call us, to confirm what a kit includes before you order.
Small Impacts
Repacking kits listed on the small Impact diagrams
| Model | Kit listed | Where to find it |
|---|---|---|
| Impact 340 | 0532911 and 0532921A | 340 Drive Assembly Parts II |
| Impact 400 | 0532911 and 0532921A; also 0532922A Rebuild Pump Kit | 400 Drive Assembly Parts (II) |
| Impact 410 | 0552951 | 410 Accessories |
| Impact 440, 540 | 704-586B | 440 Fluid Section and the 540 fluid section page |
| Impact X 440, X 540I | 704-586B | Their fluid section pages (Impact X is a separate line) |
| Impact 640 | 704-564 upper packing kit | 640 Fluid Section |
The 640 page also lists lower packing 0532915, which is shared with the 340, 400 and 410. Check the page for your model for the rest.
Notice that the Impact X 440 and X 540I use the same number as the original Impact 440 and 540. The diagrams show the same kit number on those pages, which is not the same thing as saying every part inside the pump is shared. The Impact X pump uses its own piston rod (2420579A) and piston assembly (2420580A), so rely on the kit shown on your model's page.
Mid and large Impacts
Repacking kits listed on the 740 to 1640 diagrams
| Model | Kit listed | Where to find it |
|---|---|---|
| Impact 740, 840 | 800-273 and 805-1010 | 740/840 Fluid Section |
| Impact 1040, 1140 | 0558740 | 1040 Fluid Section and the 1140 fluid section page |
| Impact 1040T | 800-730 | 1040T Fluid Section |
| Impact 1640 | 0558785 and 0558793 | 1640 Fluid Section |
The 1640 pump is otherwise different from the 740 to 1140 group: the diagram lists its own cylinder, piston rod and piston assembly. Do not assume 1640 parts match the others.
The 1040 and 1140 diagrams share packing parts as well as the kit. Both list upper packing 800-353A, lower packing 800-355A and wear ring 800-354, and the 1040T lists the same three. The 1040T has its own kit number all the same, so use the 1040T page for a 1040T.
Valve kits
Two valve kits appear on the smaller Impact pages. 805-846 is listed as an Inlet Valve Kit and 805-845 as an Outlet Valve Kit. The catalog fitment on both lists the Impact 340, 400, 440, 540, 640, 640 I and IA, 740, 840, 840 I and IA and the Impact X 410, 440 and 540I. Treat that list as the catalog's fitment note and still check your model's page.
The larger pumps list valve parts one at a time. The 740 through 1640 fluid section pages share the 9841502 outlet valve ball, 0294516 outlet valve seat and 00310 inlet seat, and the 740, 840, 1040 and 1140 pages also list the 51519 inlet ball. The 1640 does not list 51519 in our data, so check its page. A kit saves a search when several valve parts are due. A single part is the better order when inspection shows one bad ball or seat.
Related tools and parts
Repacking goes more smoothly with the right tool. The 800-359 piston insertion tool is listed on the larger pump models, and the 0551509 lower seal packing tool is listed on the 340 and 400. 314-480 Piston Lube is the lubricant for the packings. Follow your model's manual for how and where to apply it.
How to be sure
Identify your exact model
Say whether it is an Impact or an Impact X, and which number. The 440 and the Impact X 440 are different machines with different pages.
Open that model's fluid section page
Use the table above or the diagram links below. Find the kit in the callout list.
Compare with the kit's product page
Read the fitment note on the product page. If it does not name your model, stop and ask.
Call if anything is unclear
Phone (713) 931-0006 with your model and serial number. The manual for your model covers the repacking procedure.
Repacking kit 704-586B and the inlet and outlet valve parts.
Kits 800-273 and 805-1010.
Kit 0558740, packing and wear ring.
Kit 800-730 for the 1040T.
Kits 0558785 and 0558793.
Your model's manual covers the repacking procedure.
Repacking kits listed on the Impact diagrams:
The Short Version
Find your model, open its fluid section page and use the kit it lists. Do not pick a kit by name alone, because neighbouring Impacts take different numbers, and the Impact X line has its own pages. Call (713) 931-0006 when the page and the listing do not settle it.
Not sure which kit your Impact takes?
Call (713) 931-0006 with your model and serial number and our parts team will confirm the kit before you order.
(713) 931-0006Order by Parts Diagram