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Fluid End Parts & Expendables
(Full part list)
We offer a full list of parts needed per module.
American Mud Pumps parts are fully interchangeable with most of OEM parts.
National, Emsco, Gardner Denver, Oilwell, Lewco, Ideco, OPI, Bomco, LS, Skytop Brewster, Ellis Williams, Weatherford, Wilson, Workforce, Gaso, Southwest, among others.
NATIONAL 7-P-50
6 ¼ "× 7"
LINERS & LINERS SEALS
Size | High Chrome | Ceramic Zirconia | Liner Seal |
|---|---|---|---|
6 ¼” | A-0257-62HP | A-0257-62Z | A-268 |
6" | A-0257-60HP | A-0257-60Z | A-280 |
5 ¾” | A-0257-56HP | A-0257-56Z | - |
5 ½” | A-0257-54HP | A-0257-54Z | A-278 |
5” | A-0257-50HP | A-0257-50Z | A-276 |
4 ½” | A-0257-44HP | A-0257-44Z | A-274 |
4" | A-0257-40HP | A-0257-40Z | A-272 |
VALVES, SEATS, SPRINGS & INSERTS
Style | 4 Web | Full Open |
|---|---|---|
PULLER HEAD | A-1700-5 | A-5-PH |
PULLER ASSEMBLY* | A-1700 | A-1700 |
SEAT PULLER ASSEMBLY | *Does not include puller head | |
INSERT-URETHANE HT | A-5-WI-HT | A-5-FI-HT |
INSERT-URETHANE | A-5-WI | A-5-FI |
VALVE SPRING | A-5710-115 | A-5710-115 |
VALVE SEAT | A-5DD-B3 | A-5-S3 |
VALVE ASSY-URETHANE HT | A-U5-B5-HT | A-5-V1-HT |
VALVE ASSY-URETHANE | A-U5-B5 | A-5-V1 |
PISTONS
Size | BORE HUB Ǿ SIZE | REPLACEABLE RUBBER PISTON ASSY | PISTON REPLACEMENT RUBBER KIT | BONDED RUBBER PISTON ASSY | SINGLE DUROMETER URETHANE BONDED | URETHANE BONDED HIGH TEMP. |
|---|---|---|---|---|---|---|
6 ¼” | 1½” & 1⅝” | I-62-L15 | A-62L-KIT | LL-62-L15 | LLU-62-L15 | LLU-62-L15-HT |
6" | 1½” & 1⅝” | I-60-B15 | A-60B-KIT | LL-60-B15 | LLU-60-B15 | LLU-60-B15-HT |
5 ¾” | 1½” & 1⅝” | I-56-B15 | A-56B-KIT | LL-56-B15 | LLU-56-B15 | LLU-56-B15-HT |
5 ½”
| 1½” & 1⅝” | I-54-B15 | A-54B-KIT | LL-54-B15 | LLU-54-B15 | LLU-54-B15-HT |
5"
| 1½” & 1⅝” | I-50-B15 | A-50B-KIT | LL-50-B15 | LLU-50-B15 | LLU-50-B15-HT |
4 ½” | 1½” & 1⅝” | I-44-B15 | A-44B-KIT | LL-44-B15 | LLU-44-B15 | LLU-44-B15-HT |
4" | 1½” & 1⅝” | I-40-K15 | A-40K-KIT | LL-40-K15 | LLU-40-K15 | LLU-40-K15-HT |
PISTON RODS, EXTENSION RODS & ACCESSORIES
Diameter | Piston Rod | Extension Rod | Rod Clamp | Sub Rod | Piston Rod Nut |
|---|---|---|---|---|---|
1⅝” | A-1294147 | A-1294083 | A-1294085 | A-1294146 | A-50V14 |
GASKET
Valve Cover Gasket | Cylinder Head Gasket |
|---|---|
A-788Z | - |
FEEP-National 7-P-50
NATIONAL 8-P-80
6 ½" × 8 ½"
LINERS & LINERS SEALS
Size | High Chrome | Ceramic Zirconia | Liner Seal |
|---|---|---|---|
4" | A-0256-40HP | A-0256-40Z | A-272 |
4 ½ " | A-0256-44HP | A-0256-44Z | A-274 |
5" | A-0256-50HP | A-0256-50Z | A-276 |
5 ½ " | A-0256-54HP | A-0256-54Z | A-278 |
5 ¾ " | A-0256-56HP | A-0256-56Z | - |
6" | A-0256-60HP | A-0256-60Z | A-280 |
6 ¼ " | A-0256-62HP | A-0256-62Z | A-268 |
6 ½ " | A-0256-64HP | A-0256-64Z | A-268 |
VALVES, SEATS, SPRINGS & INSERTS
Style | 4 Web | Full Open |
|---|---|---|
VALVE ASSY-URETHANE | A-6-EH | A-6-V1 |
VALVE ASSY-URETHANE HT | A-6-EH-HT | A-6-V1-HT |
VALVE SEAT | A-6ADD-B4 | A-6-S4 |
VALVE SPRING | A-5710-115 | A-5710-115 |
INSERT-URETHANE | A-6-WI | A-6-WI |
INSERT-URETHANE HT | A-6-WI-HT | A-6-WI-HT |
SEAT PULLER ASSEMBLY *Does not include puller head | ||
PULLER ASSEMBLY * |