SOUTHWEST MUD PUMP PARTS LIST
8476-9A_NATIONAL_HP_12-P-160_6000PSI
FLUID END TYPE MODEL OF PUMP SIZE OF PUMP
SOUTHWEST 6000 P.S.I. NATIONAL HP 12-P-160 7-1/2” X 12”
ITEM
NO.
PART NO. DESCRIPTION QTY.REQ，D
8476-9A FLUID END ASSEMBLY: (CONSISTS OF ITEMS: 3,4，16，17，18，19,20,21，22,23,24,25,26,27,28,29,32,33,34) 31 1376YXX LINER REFER TO GUIDE FOR ORDERING CHART FOR TYPE (G); (Y); AND FOR BORE SIZE (XX) 3
2 2930-XX LINER SEAL (REFER TO GUIDE TO ORDERING CHART FOR TYPE AND SIZE(XX)) 3
3 8476-3 WEARPLATE 3
4 2988 WEARPLATE AND MODULE SEAL (also available in urethane – part# 2988U) 6
5 XX-BYY PISTON (REFER TO GUIDE FOR ORDERING CHART FOR SIZE (XX) AND FOR TYPE (YY) 3
6 568-225 PISTON O-RING 3
7 1286-32 PISTON ROD (WITH ELASTIC STOP NUT) 3
8 API-4ESN PISTON ROD ELASTIC STOP NUT 3
9 1286-1 SUB ROD 3
10 1286CWY ROD CLAMP (CONSIST OF 10A，10B，10C) (FOR CLAMP ONLY，USE 1286C) 6
10A 1200H30 HOSE (1/2” X 30” WITH 1/2” MALE X 3/8” MALE CONNECTIONS) 3
10B 1286CWYFP14 PIPE (3/8” X 14” GALVANIZED AND THREADED ON ONE END) 3
10C 4020-29 ROD CLAMP BOLT(7/8-9 grade 8 bolt with lock nut and washer) 12
11 1200G86 PONY ROD 3
12 SEE PAGE VALVE 6
13 SEE PAGE VALVE INSERT (IF required) 6
14 SEE PAGE VALVE SPRING 6
15 SEE PAGE VALVE SEAT 6
SWTM1700 HYDRAULIC SEAT PULLER KIT COMPLETE (refer to tools section of catalog for details) 1
16 4476 THREADED FLANGE 6
17 4597 SCREW GLAND 6
18 4676-9A PLUG (COMPLETE WITH VALVE GUIDE; BUSHING; AND SCREWS) INCLUDES ITEMS 21，22 & 23 6
19 P115 HP VALVE COVER PLUG NITRILE SEAL (also available in urethane – part# P115U) 6
20 4788-25R VALVE GUIDE (complete with bushing #4700-i) 6
21 4700I VALVE GUIDE BUSHING (also available in urethane – part# 4700IU) 6
22 4018-18 VALVE GUIDE SCREW 12
23 4015-54 VALVE COVER STUD (with sw part# HHN1500-61 1/2-6 heavy hex nut) 72
24 4015-95 POWER END STUD (WITH SW PART# HHN1375-6 1 3/8-6 HEAVY HEX NUT) 30
FLUID END TYPE MODEL OF PUMP SIZE OF PUMP
SOUTHWEST 6000 P.S.I. NATIONAL HP 12-P-160 7-1/2” X 12”
ITEM
NO.
PART NO. DESCRIPTION QTY.REQ，D
25 4017-65 LINER RETAINER FERRY HEAD CAP SCREW 18
26 6476 LINER RETAINER FLANGE 3
27 6576 LINER RETAINER NUT 3
28 4019-61 SUCTION MODULE STUD (WITH SW PART# HHN1750-8 1 3/4-8 HEAVY HEX NUT) 18
29 4018-19 SUCTION MANIFOLD CAP SCREW (with lockwasher) 24
30 8576-50 SUCTION MANIFOLD (front or side inlet) 1
31 AJO419R SUCTION MANIFOLD GASKET 3
32 8476-8S SUCTION MODULE (studded only) 3
33 8476-7D DISCHARGE MODULE (studded only) 3
34 8488-5 DOWEL PIN 6
35 4018-18 DISCHARGE CONNECTOR CAP SCREW (with lock washer) 24
36 4018-39 DISCHARGE SPACER FLANGE SOCKET HEAD CAP SCREW 16
37 8376-7 DISCHARGE CONNECTOR 2
38 8376-8 DISCHARGE ADAPTER 2
39 8376-9 BACK-UP RING 2
40 8376-10 DISCHARGE SPACER FLANGE 2
41 2976-3 DISCHARGE SPACER FLANGE SEAL 2
42 2976-1 DISCHARGE CONNECTOR /ADAPTER PACKING 2
43 2976-2 DISCHARGE CONNECTOR /ADAPTER PACKING 4
44 BX155 RING GASKET 2
45 4019-58 DISCHARGE SPACER FLANGE STUD (with sw part# HHN1125-71 1/8-7HEAVY hex nut) 16
46 9070012 PONY ROD SEAL
47 80491292 BAFFLE
** POLYURETHANE SEAL AVAILABLE ** SOUTHWEST 6000 PSI HP 12-P-160 GUIDE TO ORDERING
PISTONS LINERS LINER SEALS
SIZE FAIL-SAFE DUAL-DURO® GRAYLOY® ZIRCONIA RUBBER URETHANE
4″ 76BFS 76BDD 1376G06 2930-06 2930-06U
4 1/2″ 78BFS 78BDD 1376G08 1376ZIR08 2930-08 2930-08U
4 3/4″ 79BFS 79BDD 1376G09 2930-09 2930-09U
5″ 81BFS 81BDD 1376G1 1376ZIR1 2930-1 2930-1U
5 1/4″ 82BFS 82BDD 1376G2 2930-2 2930-2U
5 1/2″ 83BFS 83BDD 1376G3 1376ZIR3 2930-3 2930-3U
5 3/4″ 84BFS 84BDD 1376G4 2930-4 2930-4U
6″ 85BFS 85BDD 1376G5 1376ZIR5 2930-5 2930-5U
6 1/4″ 86BFS 86BDD 1376G6 2930-6 2930-6U
6 1/2″ 87BFS 87BDD 1376G7 1376ZIR7 2930-7 2930-7U
VALVES & SEATS ( NATIONAL HP 12-P-160 )
TYPE VALVE INSERT SPRING STAINLESS
SPRING
SEAT PULLER HEAD PULLER HEAD STYLESOUTHWEST (Full Open) 773-1B N/A SW5710-110L N/A 873-1 SWTM3750 SPLIT JAW
FULL OPEN-ROUGHNECK (Cast N Place Insert) SWND-6V2 N/A SW5710-115 N/A SWND-6S4 SWND-6PH
SWTM27SXN
PANCAKE SPLIT JAWFULL OPEN-ROUGHNECK (High Temp) SWND-6V2HC NA SW5710-115 N/A SWND-6S4 SWND-6PH
SWTM27SXN
PANCAKE SPLIT JAWFULL OPEN-ROUGHNECK (w/Replaceable Urethane Insert) SWND-6V1 SWND-6I SW5710-115 N/A SWND-6S4 SWND-6PH
SWTM27SXN
PANCAKE SPLIT JAW3 WEB DOUBLE ANGLE O-RING SWR0500119 SWR0515845 SWR0513744 SWR0514790 SWR0512436 SWTM3-7D
3 WEB (High Temp) SWR0520586 SWR0520585 SWR0513744 SWR0514790 SWR0512436 SWTM3-7D 3 J HOOK
3 WEB STANDARD PLATE SWR0505038 SWR0504890 SWR0513744 SWR0515576 SWR0512436 SWTM3-7D
4 WEB SWU5B-EH SWUDD-6AB SW5710-115 N/A SW6ADD-B4 SWTM4-6 4 J HOOK
4 WEB (High Temp) SWU5B-EHHT SWUDD-6ABHT SW5710-115 N/A SW6ADD-B4 SWTM4-6
TORQUE SPECIFICATIONS FOR 8476-9A SOUTHWEST FLUID END ASSEMBLY FOR NATIONAL HP 12-P-160 6000 P.S.I.
TORQUE TYPE (EXPRESSED IN FOOT-POUNDS)
PART NUMBER DESCRIPTION COPPERCOTE MOLY GREASE DRY (NOT RECOMMENDED)
API-4 ESN PISTON ROD NUT NO MORE FORCE THAN ONE MAN ON 3′ WRENCH/CHEATER COMBINATION
4020-29 ROD CLAMP BOLT 150 MAXIMUM
4018-18 VALVE GUIDE SCREW 53 80 107
4015-54 VALVE COVER STUD 1208 1752 2417
4015-95 POWER END STUD 877 1272 1754
4019-61 SUCTION MODULE STUD 2275 3299 4550
4018-19 SUCTION MANIFOLD CAP SCREW 215 322 430
4018-39 DISCHARGE SPACER FLANGE SOCKET HEAD CAP SCREW 1586 2379 3173
4019-58 DISCHARGE SPACER FLANGE STUD 536 778 1073