Power end Assembly
The information described in this page is to support our clients, It should be used for reference only.
Information is based on a typical Triplex Mud Pump, and descriptions may be different depending on mud pump brand, etc.
POWER END ASSEMBLY
01
CROSSHEAD ASSEMBLY
02
PINION ASSEMBLY
03
CRANKSHAFT ASSEMBLY
04
POWER FRAME ASSEMBLY
POWER FRAME ASSEMBLY
01
COVER, CRANKCASE
02
SCREW, HEX CAP 5/8" - 11 X 2 1/2" GR5
03
POWER FRAME
04
GASKET, CROSSHEAD COVER
05
SUPPORT, FRAME FRONT
06
SCREW, HEX HEAD CAP 3/4"- 10 UNC x2 1/2"
07
CROSSHEAD COVER
08
SEAL, 3/4" DIA, BLACK STAT O SEAL
09
SCREW, CAP HEX 3/4"-10X2 1/2" GR5
10
COVER, MAIN BEARING
11
GASKET, MAIN BEARING COVER
12
STUD, MAIN BEARING RETAINER CAP
13
TORQUE NUT WITH WASHER
CRANK SHAFT ASSEMBLY
01
Screw, Cap Drilled Hex ⅝” – 11 x 2” Alloy B18.2.1 GR8
02
Retainer, Eccentric Bearing Outer Race
03
Bearing, Cylindrical Roller
04
Retainer, Eccentric Bearing Inner Race
05
Connecting Rod
06
Crankshaft
07
Cap Screw, Hex 1-1/2– 6UNC x 5½” CS B18.2.1 GR8
08
Gear, Main
09
Nut, Hex 1-1/2–6UNC with Nylon insert
10
Tie Wire, 0.048” OD Stainless Steel
MAIN BEARING ASSEMBLY
10
Screw, Hex Head Cap ¾” – 10 UNC x 2.000” drilled G8
11
Retainer, Main Bearing Outer Race
12
Screw, Cap Drilled Hex 1” – 8 x 2¾” Alloy B18.2.1 GR8
13
1” Lock Washer, Spring Type
14
Retainer, Main Bearing Inner Race
15
Shim Set, Main Bearing
16
Bearing, Roller
17
Carrier, Crankshaft Bearing RH
Carrier, Crankshaft Bearing LH
NS
Tie Wire, 0.048” OD Stainless Steel
POWER PINION SHAFT ASSEMBLY
01
Shaft, Pinion, Herringbone
02
Screw, Cap Drilled Hex ⅝” – 11 GR8
03
Plate, Pinion Oil Retainer
04
Gasket, Pinion Carrier
05
Carrier, Pinion Bearing
06
1” Lock Washer, Spring Type
07
Screw, Hex Head Cap 1–8 UNC
08
Bearing, Cylindrical Roller
09
Gasket, Seal Plate
10
Plate, Pinion, Oil Seal
11
¾” Lock Washer
12
Screw, Hex Head Cap ¾” – 10 UNC drilled G8
13
Seal, Oil 13” Bore x ¾” WD
14
Race, Pinion Oil Seal
NS
Seal, Oil 13” Bore x ¾” WD
CROSSHEAD ASSEMBLY
01
Screw, Hex Head Cap ⅝” – 11 UNC x 1.500” GR5
02
Washer, Lock ⅝”
03
Plate, Stuffing Box Cover
04
O-Ring, Stuffing Box
05
Packing, Crosshead Extension Rod
06
O-Ring, Stuffing Box Cover
07
Cartridge, Packing
08
Screw, Socket Head Cap ¾” – 10 UNC x 1¾” LG.
09
Seal, ¾” Diameter, Black Stat o Seal
10
Box, Stuffing
11
Gasket, Stuffing Box
12
Crosshead
13
Retainer, Inner Wrist Pin
14
Screw, Drilled Hex Cap ¾” – 10 x 2⅛” GR8, DH
15
Bearing, Cylindrical Roller
16
Pin, Wrist, Crosshead
17
Retainer, Wrist Pin w/ Lube Cup
19
Screw, Hex Head Cap ⅞" - 9 UNC x 2½" GR8, DH
20
Screw, Hex Head Cap 1" - 8 UNC x 3" LG GR5, DH
21
Rod, Crosshead Extension
22
Screw, Hex Head Cap 1” – 8 x 2.500” DH
23
Disc, Baffle
24
Guide, Crosshead
25
Screw, Socket Head Cap 1” – 8 UNC x 2½” , DH
26
Guide, Clamp Bar
NS
Tie Wire, 0.048” OD Stainless Steel
LINER ASSEMBLY
01
Nut, Liner Retainer
02
Liner 5"
Liner 5.5" (5 1/2")
Liner 6"
Liner 6.5" (6 1/2")
Liner 7"
Liner 7.5" (7 1/2")
Liner 8"
Liner 8.5" (8 1/2")
Liner 9"
03
Cap Screw, Retainer
04
Flange, Liner Retainer
05
Wear Plate
06
Seal, Wear Plate, Urethane
NS
Splash Baffle, Liner Wash
Liners; Chrome Iron, Zirconia Liners
Replacement Seals ; Nitrile, Urethane seal
PISTON ASSEMBLY
01
Clamp Assembly
02
Sub Rod, Piston
03
Rod, Piston
04
Piston 5"
Piston 5.5" (5 1/2")
Piston 6"
Piston 6.5" (6 1/2")
Piston 7"
Piston 7.5" (7 1/2")
Piston 8"
Piston 8.5" (8 1/2")
Piston 9"
05
Nut, Lock
-
Bonded DD Urethane Piston
-
Bonded DD HT Urethane Piston
-
Bonded Nitrile Piston
-
Replaceable Nitrile
-
Replacement Kit
VALVE ASSEMBLY
01
CS Spring
SS Spring
02
Valve with Bonded Insert
Valve with Replaceable Insert
03
Valve Seat
NS
Valve Insert
NS
Seat Puller Head
Valve Seat Puller Kit
-
Full Open Valve
-
Full Open HT Valve
-
3 Web CG Valve
-
3 Web CG HT Valve
-
4 Web CG Valve
-
4Web CG HT Valve
FLUID END ASSEMBLY
01
Frame
02
Discharge Fluid End
03
Valve Cover Stud
04
Discharge Manifold Stud
05
Suction Flange Stud
06
Valve Guide Bolt
07
Suction Manifold Cap Screw
08
Discharge Manifold
09
Suction Manifold
10
Discharge Manifold Gasket
11
Valve Cove Ring
12
Valve Cover Plug
13
Valve Cover
14
Discharge Valve Guide
15
Valve Seal
16
Valve Back-up Seal
17
Suction Pot
18
Suction Flange
19
Suction Valve Guide
20
Suction Guide Bushing
21
Suction Seal
22
Suction Back-up Ring
23
Victaulic Coupling
24
Victaulic Gasket
25
Elbow
26
Suction Adapter
27
Suction Gasket
28
Wear Plate
29
Wear Plate Gasket
30
Liner Lock Flange
31
Liner Lock Nut
32
Piston Rod
33
Liner Wash Splash Baffle
34
Sub Rod
35
Piston Rod Clamp
36
Baffle Disc (ref)
37
Pony Rod (ref)
38
Fluid End Stud
39
Liner (see size chart )
40
Liner Gasket (see size chart )
41
1.5” 8UNC-2B Elastic Stop Nut
42
1.5” 8UNC-2B 36HVY HX72 Nuts 12
Warranty:
American Mud Pumps LLC: warrants its products to be free from defects in material and/or workmanship under normal use and service for a period of one(1)year from the date of shipment. The liability for any defects shall be limited to the repair or replacement of such products, or at the option of American Mud Pumps LLC the refunding of purchase price. This warranty is expressly in lieu of all other warranties and representations, expressed or implied, and all other obligations or liabilities on the part of American Mud Pumps LLC, which shall not be liable for consequential damages for any breach of warranty."
Disclaimers.
American Mud Pumps LLC is a quality independent company. We are neither a licensee, nor affiliated with any other original equipment manufacturer (OEM) which may be named throughout. The manufacturers' names or trademarks used herein are solely for identification purposes and are not intended by American Mud Pumps LLC to cause confusion as to the source, sponsorship or quality of the parts provided by American Mud Pumps LLC. The OEMs named throughout this catalog do not sponsor, promote, warranty or endorse American Mud Pumps LLC products. Part number usage is for identification purposes only."