HT-400 (4.0″ Plunger) Rig Maintenance Parts

Product Introduction

This all-inclusive rig maintenance parts catalog features direct-fit OEM replacement components for routine preventive maintenance, emergency repairs, and full overhauls of critical rig equipment, covering HT-400 frac pump valves/seals/bushings, Halliburton C-Pump impellers/shaft sleeves, Allison HT-750 transmission filters/gaskets, Detroit 4-71 engine filters/thermostats, surge tank valves/gauges, high-pressure manifold plug valves, and specialized HT-400 service tools. Unlike generic aftermarket alternatives, each component is built to the exact design specifications of target rig equipment, ensuring seamless field installation, zero compatibility errors, and reliable performance under the harshest oilfield operating conditions

Functional Specifications

• HT-400 Frac Pump Components: Precision valve inserts, tapered valve seats, and urethane seals maintain high-pressure frac fluid containment; brass valve guide bushings reduce friction and wear; lock springs and retainers secure valve assemblies under extreme pressure cycles.
• Pump & Transmission Parts: Halliburton C-Pump impellers and METCO 136F shaft sleeves optimize fluid flow; Allison HT-750 transmission filters and gasket kits prevent fluid contamination; hydraulic oil filters (25 micron) protect power pack systems from debris.
• Engine & Control Components: Detroit 4-71 engine air/fuel/oil filters ensure clean combustion and lubrication; Murphy pressure/temperature gauges monitor critical operating parameters; magnetic tachometer pickups track equipment runtime accurately.
• Sealing & Fastening Hardware: 70/90 durometer O-rings and full-face flange gaskets eliminate fluid leaks; heat-treated alloy set screws provide vibration-resistant clamping for high-load components.
• Specialized Service Tools: Custom HT-400 wrenches, pullers, and installation tools enable safe, efficient field repairs of valve seats, plungers, and packing assemblies, reducing manual labor and repair time.

Structural Characteristics

All rig maintenance parts feature rugged, oilfield-specific construction for maximum durability: valve inserts use wear-resistant urethane for extended frac service life; seals use high-temperature HNBR/Viton elastomers resistant to oil and drilling fluids; metal components use forged alloy steel for high-pressure strength; filters use high-capacity media for extended service intervals. Components are designed for tool-friendly field installation, with precise dimensional matching to OEM equipment for hassle-free replacement during critical rig operations.

Applicable Operating Conditions

These spare parts are engineered to perform reliably in extreme oilfield rig conditions, including:

• High-pressure fracturing operations (up to 15,000 PSI) with HT-400 4.0” plunger pumps
• Continuous slurry/mix water pumping with Halliburton 4×4×12 and 6×5×11 C-Pumps
• Power transmission operation with Allison HT-750 and Detroit 4-71 auxiliary engines
• Exposure to abrasive mud, corrosive fluids, extreme vibration, and temperature fluctuations (-20°F to 300°F)
• Compliance with API 6A, API 13C, and SAE heavy-duty equipment standards

Maintenance & Servicing Recommendations

1. Pre-Installation Verification: Cross-reference OEM part numbers against equipment technical manuals to confirm exact fitment; inspect parts for defects and clean mating surfaces to remove mud, grease, and debris before assembly.
2. Pump Valve & Seal Care: Replace HT-400 valve inserts and seats every 2,000 frac hours; lubricate O-rings lightly during installation to prevent tearing; retorque retainers to OEM torque specs to avoid leaks.
3. Filter Replacement Schedule: Change hydraulic/engine oil filters every 500 operating hours, fuel filters every 300 hours, and air filters every 800 hours to prevent contamination and component damage.
4. Plunger & Packing Maintenance: Inspect HT-400 plunger assemblies for wear every 1,500 hours; replace packing seals and wiper glands at the first sign of fluid leakage to protect pump cylinders.
5. Tool & Component Calibration: Calibrate pressure/temperature gauges quarterly; inspect specialized HT-400 service tools for wear before each use to ensure safe, effective repairs.

We supply the following spare parts:

NO	PART DESCRIPTION	PART NUMBER	HAL-PART NO
1	Retainer, Stop and Spring, HT400, No. 3 Suction Valve, Mach. Cast.	100058419	316.22977
2	Boot, Suction and Stop, HT400TM, No. 3, 4 and 5 Frac	100002972	316.25233
3	Spring, Lock, Suction Stop, No. 3, HT400	100002841	316.2125
4	Pin, Cotter, 1/8 x 1 1/2 inch, HT-400TM	100002079	70.35717
5	Liner, Two Piece Bushing, Valve Guide, HT400, No. 4 Frac, Brass	100002868	316.22005
6	Insert, Two Piece Bushing, Valve Guide, Special, HT-400TM, No 4 Frac	100002867	316.22004
7	Spring, Valve, HT400, No. 4 inch	100002837	316.2108
8	Valve, HT400,4 inch, Frac	100002824	316.21007
9	Insert, Valve, HT400, No. 3 Frac, Urethane, Standard Service (Brown)	100002823	316.21006
10	Seat Valve, HT400, No. 3 Frac, Tapered	100002825	316.21008
11	O-ring, 90 Duro, 4 x 3 3/4 x 1/8, 568-240	100000968	8.34037
12	Retainer, Guide Bushing, HT400, 4 inch Tapered Seat Bore	100002838	316.21096
13	Retainer, Cover, HT-400TM, 4.0 in	100007820	316.2202
14	Cover, Discharge, Double Guided Valve, HT-400TM, 4 in	100002938	316.23091
15	Gasket, Discharge Valve & Cylinder Head Cover, No. 4, HT-400TM	100002878	316.22052
16	Ring, Spacer, Discharge Valve & Cylinder Head Cover, No. 4, HT-400TM	100002877	316.22051
17	Liner, Two Piece Bushing, Valve Guide, HT400, No. 4 Frac, Brass	100002868	316.22005
18	Insert, Two piece Bushing, Valve Guide, Special, HT-400TM, No. 4 Frac	100002867	316.22004
19	Spring, Valve, HT400, No. 4 Inch	100002837	316.2108
20	Valve, HT400, 4.0 In, Frac	100002824	316.21007
21	Insert, Valve, HT400, No. 3 Frac, Urethane, Standard Service (Brown)	100002823	316.21006
22	Seat Valve, HT400, No. 3 Frac, Tapered	100002825	316.21008
23	O-ring, 90 Duro, 4 x 3 3/4 x 1/8, 568-240	100000968	8.34037
24	Retainer, Guide Bushing, HT400, 4.0 Inch, Tapered Seat Bore	100002838	316.21096
25	Pin Groove, 1/2-in x 11/4-in, Type 5	100002081	–
26	Sleeve, Wiper Gland, HCLE, 4.0 inch	100002016	–
27	Nut, Packing Adjustment, HCLE, 4.0 inch	101328001	–
28	Seal, Packing Lube, 4.000, WS-Seal, CDI	101377657	–
29	O-ring, 9- Duro, 5 x 4 3/4 x 1/8 568-248	100002016	–
30	Carrier, Seal, 4.000, CDI	101377656	–
31	Adaptor, Female, 4.000, PEEK, CDI	101377652	–
32	Packing, 4.000, CDI, WSP1, PTFE	101377641	–
33	Header Ring, 4.000, HNBR, CDI	101377640	–
34	Spacer, Fluid End, CDI	101377638	–
35	Retainer, Protective Cylinder Head Cover, 4.0 in	100011711	316.22606
36	Cover, Protective Cylinder Head, 4.0 in	100002902	316.22605
37	Gasket, 3 Discharge Valve & Cylinder Head Cover, 3 3/8 in	100002830	316.21052
38	Ring, Spacer, #3 Discharge Valve & Cylinder Head Cover. 3 3/8	100002829	316.21051
39	Nose, Plunger, HT-400TM, 4.0 in	100002885	316.2231
40	Seal, Plunge Nose Assembly, HT-400TM, 4.0	100002884	316.223
41	Plunger, 4.0 in, Hard Surface, L-Spacer, HT-400TM	100002883	316.22294
42	FILTER,HYDRAULIC, OIL, ELEMENT, 25 MICRON	100002827	316.21928
43	ELEMENT, OIL FILTER, 0.027 DIA PERFORATIONS, WITH MAGNETS, FOR LF-SKB-G267-3 STRAINER	100011706	316.22302
44	VALVE, CHECK, 1/8, FEMALE INLET, MALE OUTLET, WITH 70 DURO O-RING	100000592	1.131
45		100001698	70.20831
46		100001696	70.20813
47	IMPELLER, 12 INCH DIAMETER, HALLIBURTON 4 X 4 X 12 CENTRFUGAL PUMP	100003127	350.20501
48	SLEEVE, SHAFT, METCO 136F, PUMP, CENTRIFUGAL, HALLIBURTON	100003087	350.12435
49	O-RING, 70 DURO, 2 1/8 X 2 X 1/16 568-033, SPEC 70.33000 SPEC, 70.72000	100002400	70.80609
50	O-RING, 70 DURO, 12 1/2 X 12 X 1/4 568-453, SPEC 70.33000 SPEC, 70.72000	100001993	70.34019
51	O-RING, 70 DURO, 2 X 1 7/8 X 1/16 568-032, SPEC 70.33000 SPEC, 70.72000	100002399	70.80608
52	SEAL, OIL, 21159, 2.125 B X 3.000 OD X 0.250 W, CHROME ONLY	100013140	70.80603
53	SEAL, OIL, 21163, 2.125 B X 3.000 OD X 0.375 W, CHROME OR 472015 NATIONAL ONLY	100002396	70.80604
54	SEAL, OIL, 9189 LPD, 1.875 B X 2.750 OD X 0.375W, JOHNS MANVILLE ONLY	100002397	70.80606
55	GASKET, 4 IN NOM, 125 STANDARD FLANGE 1/16 NEOPRENE FULL FACE, 3-M DEMING PUMP	100011821	350.16675
56	SCREW, SET, 3/4-10 UNC-3A X 2, CUP PORT, HEX SOCKET, HEAT TREATED ALLOY STEEL, ZINC PLATED, 40 RC MAX, HOLOKROME ONLY, SPEC	100013143	70.80614
57	SCREW, SET, 3/4-10 UNC-3A X 3, CUP PORT, HEX SOCKET, HEAT TREATED ALLOY STEEL, ZINC PLATED, 40 RC MAX, HOLLOKROME ONLY, SPEC	100013142	70.80613
58	SEAL, OIL, 2.500 B X 3.500 OD X 0.437 W	100002398	70.80607
59	BEARING, BALL, RADIAL, 2.165 ID X 5.512 OD X 1.299 THK, SINGLE ROW, HEAVY SERIES,SIMPLEX, 411	100002395	70.80602
60	BEARING, BALL, 1/2 PAIR, 2.165 ID X 4.724 OD X 1.141 THK, SINGLE ROW, MEDIUM SERIES, DUPLEX, PART NO 7311	100001442	70.04136
61	IMPELLER, 10 DIA, PUMP CENTRIFUGAL, 6 X 5 X 10 X 10, HALLIBURTON	100003083	350.12414
62	SLEEVE, SHAFT, METCO 136F, PUMP, CENTRIFUGAL, HALLIBURTON	100003087	350.12435
63	O-RING, 70 DURO, 2 1/8 X 2 X 1/16 568-033, SPEC 70.33000 SPEC, 70.72000	100002400	70.80609
64	O-RING, 70 DURO, 12 1/2 X 12 X 1/4 568-453, SPEC 70.33000 SPEC, 70.72000	100001993	70.34019
65	O-RING, 70 DURO, 2 X 1 7/8 X 1/16 568-032, SPEC 70.33000 SPEC, 70.72000	100002399	70.80608
66	SEAL, OIL, 21159, 2.125 B X 3.000 OD X 0.250 W, CHROME ONLY	100013140	70.80603
67	SEAL, OIL, 21163, 2.125 B X 3.000 OD X 0.375 W, CHROME OR 472015 NATIONAL ONLY	100002396	70.80604
68	SEAL, OIL, 9189 LPD, 1.875 B X 2.750 OD X 0.375W, JOHNS MANVILLE ONLY	100002397	70.80606
69	GASKET, 6 IN NOM, 125 STANDARD FLANGE -1/16 NEOPRENE FULL FACE, 3-M DEMING PUMP	100008200	350.16677
70	GASKET, 5 IN NOM, 125 STANDARD FLANGE -1/16 NEOPRENE FULL FACE, 3-M DEMING PUMP	100011822	350.16676
71	SCREW, SET, 3/4-10 UNC-3A X 2, CUP PORT, HEX SOCKET, HEAT TREATED ALLOY STEEL, ZINC PLATED, 40 RC MAX, HOLOKROME ONLY, SPEC	100013143	70.80614
72	SCREW, SET, 3/4-10 UNC-3A X 3, CUP PORT, HEX SOCKET, HEAT TREATED ALLOY STEEL, ZINC PLATED, 40 RC MAX, HOLLOKROME ONLY, SPEC	100013142	70.80613
73	SEAL, OIL, 2.500 B X 3.500 OD X 0.437 W	100002398	70.80607
74	BEARING, BALL, RADIAL, 2.165 ID X 5.512 OD X 1.299 THK, SINGLE ROW, HEAVY SERIES,SIMPLEX, 411	100002395	70.80602
75	BEARING, BALL, 1/2 PAIR, 2.165 ID X 4.724 OD X 1.141 THK, SINGLE ROW, MEDIUM SERIES, DUPLEX, PART NO 7311	100001442	70.04136
76	SLEEVE, COUPLING, WOODS 8H, HYTREL	100002395	70.80602
77	RING, RETAINING, N5000-112, INTERNAL	100002395	70.80602
78	FILTER,HYDRAULIC, OIL, ELEMENT, 25 MICRON	100001698	70.20831
79	SEAL, SHAFT SHIFTER, FOR ALLISON TRANSMISSION HT-750	100046390	102.29420
80	SEAL, 6773311, OIL OUTPUT SHAFT, ALLISON TRANS 4460	100047441	130.04145
81	KIT, GASKET	100048276	195.22918
82	NUT, OUTPUT FLANGE, SELF-LOCKING, HT-750 DRD	100048288	195.22962
83	O-RING, 70 DURO, 4 7/8 X 4 1/2 X 3/16 568-349, SPEC 70.33000 SPEC, 70.72000	100001891	70.33432
84	ACCUMULATOR, HYDRAULIC, 15 CUBIC INCH, NOMINAL VOLUME, PRECHARGED TO 20 PSI, SPEC	100020448	70.00136
85	O-RING, PICKUP TUBE, GM	100046372	102.28408
86	SCREEN ASSEMBLY, FILTER, HT750 DRD, FOR 7 IN DEEP OIL PAN, AFTER SERIAL NUMBER25100-35716, INCLUDES SCREEN, SPACER, O-RING SEAL, AND PAN GASKET	100048295	195.23001
87	FILTER,ENGINE, FUEL, SECONDARY, SPIN ON, DDC 6-71 -6V & 8V-71 & 6V & 8V-92 ENGINES	100001711	70.21793
88	FILTER,ENGINE, FUEL, PRIMARY, SPIN ON, 6V AND 8V AND 92 SERIES DETROIT DIESEL, 6-71, 4-71, 8.2	100001712	70.21801
89	FILTER, ENGINE, FUEL, SPIN ON, SECONDARY,FOR GM 3,4-53, DET 3-53, 4-71,6-71	100002641	102.25876
90	FILTER,ENGINE, FUEL, SPIN ON, PRIMARY, FOR GM 3,4-53, DET 6-71, DET 3-53, 4-71	100002640	102.25875
91	BELT, V, 31/64 IN W, 67 3/8 IN LG, 36 DEG, MATCHED SET OF 3	100021611	70.07299
92	PICKUP, MAGNETIC, INTRINSICALLY SAFE, POWER OUTPUT, 5/8-18-21 UN, 2.5 IN THREAD LG, USED WITH MTH-103D TACHOMETER/HOURMETER	100009327	70.14602
93	RECEIVER, HYDRAULIC THROTTLE CONTROL, MODEL 52, COLUMBIAN	100001658	70.17812
94	GAUGE, WATER TEMPERATURE, 100-250 DEGREE F, ENGINE, 288 INCH CAPILLARY TUBE, SPEC, MURPHY DRAWING 10-35-0125	100001752	70.24181
95	GAUGE, OIL PRESSURE, 0-100 PSI, GENERAL MOTORS ENGINE, SPEC, MURPHY DRAWING 05-35-0094	100001758	70.24244
96	GAUGE, OIL PRESSURE, 0-300 PSI, SPEC, MURPHY DRAWING 05-35-0415	100001741	70.24028
97	GAUGE, OIL TEMPERATURE, 150-300 DEGREE F, 336 INCH TUBE, SPEC, MURPHY DRAWING 10-35-0708	100013089	70.71408
98	TACHOMETER, DIGITAL, 4 DIGIT, LCD, INTRINSICALLY SAFE, 3.375 DIAMETER HOLE, MAGNETIC PICKUP ENERGIZED CSA, LR45322-9	100032707	70.79370
99	Service Kit, Air Starter IR 150LFPE88R54-020	100049770
100	CAP, OIL FILLER	100022466	70.12707
101	FILTER,ENGINE, AIR, PRECLEANER AND PANEL FILTER ASSEMBLY<br>FOR FA-240-PLHD FILTER ASSEMBLY (70.22544 OR 70.22548 ASSEMBLIES)	100001692	70.20744
102	FILTER, ENGINE, AIR, ELEMENT, PRECLEANER, SECONDARY, GENERAL EQUIPMENT	100001694	70.20799
103	ELEMENT, WATER FILTER, DCA 4 WATER SERVICE, SPIN ON, 4 DCA UNITS	100001704	70.21014
104	FILTER,ENGINE, FUEL, SECONDARY, SPIN ON, DDC 6-71 -6V & 8V-71 & 6V & 8V-92 ENGINES	100001711	70.21793
105	FILTER,ENGINE, FUEL, PRIMARY, SPIN ON, 6V AND 8V AND 92 SERIES DETROIT DIESEL, 6-71, 4-71, 8.2	100001712	70.21801
106	THERMOSTAT, 170 DEG OPEN, GM	100046210	102.25804
107	PUMP, WATER, 8V-71, GM	100046212	102.25806
108	FILTER, ENGINE, OIL, SPIN ON, DETROIT DIESEL 2 CYCLE ENGINES	100011062	102.25874
109	PUMP, 5199560, FUEL, GM 8V-71	100046292	102.27487
110	GASKET, 5104081, ROCKER COVER, 71 & 92 SERIES, GM	100046235	102.25903
111	GAUGE, WATER TEMPERATURE, 100-250 DEGREE F, ENGINE, 144 INCH CAPILLARY TUBE, SPEC, MURPHY DRAWING 10-35-0154	100001753	70.24189
112	HOSE, WATER, 1 IN ID, SGL BRAID 19-B	100060141	426.6003
113	BELT, V, 31/64 IN W, 41-3/8 IN LG, 36 DEG	100027203	70.35710
114	FILTER, ENGINE, OIL, SPIN ON, DETROIT DIESEL 2 CYCLE ENGINES	100011062	102.25874
115	Service Kit, Air starter Ingersol Rand 5BM	100049768
116	REGULATOR, AIR, 1 IN HPT, 0-30 PSI, PILOT OPERATED, NORGREN, WITH BRACKET,18-001-073, WITH O GAUGE	100035265	70.93412
117	GAUGE, PRESSURE, 0-60 PSI, 0-400 KPA, 3 1/2 OR 4 IN, 2%, BRDN TB/BRONZE, 1/4 NPT LM, STEM MOUNT, GLY FILLED, BACK CASE RELIEF	100003355	441.3132
118	GAUGE, AIR PRESSURE, 0-50 PSI, SPEC, MURPHY DRAWING 05-35-0714	100001746	70.24058
119	WASHER, RUBBER, 3.00 OD X 1.34 ID X 0.5 THK, AERATION CARTRIDGE, SPEC SPEC, 70.72000	100079033	940.04069
120	CARTRIDGE, AERATION, 60 DEG CONE, 1/4 CIRCLE, 19.5 WIDE, EXTERNAL NIPPLE	100078930	940.03290
121	VALVE, HORIZONTAL CHECK, 1 IN, BRONZE 150, WATER, OIL OR GAS, SPECIAL 70.71972	100000922	6.304
122	VALVE, CHECK, 1 IN, FPT, 3000 PSI	100015336	6.7765
123	VALVE, BALL, 1 INCH, 1500 CWP, FNPT, BRASS BODY, STAINLESS STEEL TRIM, REINFORCED TFE SEAT & STEM SEAL, VITON BODY SEAL, REG. PART, 3 PIECE SWING OUT BODY, SPEC	100000923	6.4404
124	VALVE, WORCESTOR, 2 IN, WITH ADAPTER TO PIPE EXTENSION	100015557	9.40154
125	VALVE, RELIEF, SET AT 44 PSI, SIDE FEMALE OUTLET, MALE INLET, 2 X 2, BRONZE BODY & TRIM, WITH LEVER	100014088	9.40918
126	VALVE, CHECK, 1 IN FPT	100000926	6.9906
127	VALVE, BUTTERFLY, 10 IN, D D H NAO-12-RED RUBBER SEAT-DI DISC-DI BODY, 410 STAINLESS STEEL 7/8 IN, SQUARE STEM-50# WP, DRY SERVICE, BA100 0120 D D H NAO	100016227	13.20596
128	HANDLE, OPERATING, 8 & 10 IN BUTTERFLY VALVE, SPECIAL	100016217	13.20371
129	SPRING, AIR, RUBBER, 6.0 OD MAXIMUM, 1/4 NPT, FIRESTONE, MODEL 16	100033498	70.83105
130	SEAL, RUBBER, RELIEF VALVE, STEADY FLOW SEPARATOR, 6 IN VENT, SPEC, SPEC, 70.72000	100002388	70.79375
131	GLASS, SIGHT, STEADY FLOW BIN	100078436	935.49538
132	LENS, SIGHT GLASS, STEADY FLOW SEPARATOR	100078439	935.49543
133	O-RING – 90D – 4-7/8 X 4-5/8 X 1/8 – 568-247 – SPEC 8.33001   SPEC –       70.72000	100000973	8.34044
134	O-RING, 90 DURO, 5 X 4 3/4 X 1/8, 568-248, SPEC 8.33001 SPEC, 70.72000	100000974	8.34045
135	VALVE, PLUG, LO-TORC, 1.75 BORE, 15000 PSI WP, 22500 PSI TEST, WITH 2 IN, MALE & FEMALE 1502 UNION ENDS	100001014	9.126
136	RING, SEAL, WITH BACK-UP RING, 2 IN 1502 UNION	100001276	38.09472
137	KIT, REPAIR, 1 IN TYPE CERT LO-TORC PLUG VALVE, STANDARD SERVICE, CORROSION RESISTANT ALLOY PLUG, IRON INSERTS, NITRILE SEALS	100015529	9.12794
138	KIT, REPAIR, 2 IN, STANDARD SERV, TYPE CERTIFIED, LO TORC PLUG VALVE, CORROSION RESISTANT ALLOY PLUG, IRON INSERTS, NITRILE SEALS	100015708	9.82604
139	SEAL, UNION, 2 IN FIGURE 602 & 1502	100001274	38.0947
140	TUNE UP KIT REPAIR	FOR 150 BM
141	REAR END PLATE	10 BM-12
142	FRONT END PLATE	10 BM-11
143	COLUMBIAN THROTTLE REP KIT TRANSMITTER	MODEL-52
144	COLUMBIAN THROTTLE REP KIT RECEIVER	MODEL-52
145	MIXER ASSEMBLY, CEMENT, LOW PROFILE	100011885	412.13700
146	INSERT, MIXER, LOW PROFILE, 4.5 IN ID, DEVLON, 7.5 INCHES LONG	100011886	412.13703
147	VALVE, BALL, 2 IN, STAINLESS STEEL BODY & STEM, PTFE SEAT, LEVER HANDLE	100013061	70.59014
148	VALVE ASSEMBLY, CEMENT THROTTLING, LOW PROFILE	100011884	412.13600
149	RING, WEAR, FOR 6 IN DIA ROD, 1/2 IN WIDE, 0.120/0.125 THK, REINFORCED NYLON	100013260	70.99262
150	O-RING, 90 DURO, 5 7/8 X 5 5/8 X 1/8 568-255, SPEC 599.33001 SPEC, 70.72000	100012954	70.34052
151	Actuator 2″ TO 5″ WECO	P526829
152	Actuator 6″ WECO	P526832
153	Repair Kit, Actuator 2″ TO 5″ WECO
154	VANE O-RING FOR 4″	3260273
155	B/F Valve 3″	3230052	11.7506
156	B/F Valve 4″	3229886	12.5082
157	B/F Valve 5″	3229887	13.1318
158	B/F Valve 6″	3229888	13.1919
159	SEAT, BUTTERFLY, V-3 IN, BNO-12N-NITRILE, SUPERSEDES 10.03466, BP030 012N, SEAT NIT	100001095	10.03465
160	DISC, BUTTERFLY, V-3 IN, D, 12-DUCTILE IRON SUPERSEDES 10.03472, BP030 0120, DISC DI	100001101	11.03461
161	O-RING, 70 DURO, 3/4 X 9/16 X 3/32, 568-113, SPEC 70.33000 SPEC, 70.72000	100001916	70.33817
162	PIN, ROLL, 79-040-187-1500, 3/16 X 1 1/2, STAINLESS STEEL	100002566	70.92142
163	SEAT, BUTTERFLY, V-4 IN, BNO-12-NITRILE, SUPERSEDES 12.50702, BP040 0120, SEAT BUNA-N	100001146	12.50695
164	DISC, BUTTERFLY, V-4 IN, D, 12-DUCTILE, IRON SUPERSEDES 12.50728, BP040 0120, DISC DI	100001147	12.50721
165	O-RING, 70 DURO, 3/4 X 9/16 X 3/32, 568-113, SPEC 70.33000 SPEC, 70.72000	100001916	70.33817
166	PIN, ROLL, 79-040-187-1750, 3/16 X 1 3/4, STAINLESS STEEL	100013228	70.92143
167	HANDLE, OPERATING, 4, 5 & 6 IN WECO, MODEL 12N BUTTERFLY VALVE	100001150	12.50821
168	HANDLE B/F VALVE 2-3″	3234078
169	WOOD COUPLING SLEEVE		70.81793
170	ELEMENT FILTER		70.81458
171	ELEMENT FILTER		71.20831
172	O-RING FOR ABOVE		70.33432
173	HYD OIL PRESSURE GAUGE 5000 PSI		441.3069
174	HYD OIL PRESSURE GAUGE 600 PSI		70.04696
175	TEMP GAUGE 100 TO 250 DEG F		70.24112
176	ELEMENT FILTER		70.0664
177	TANK BREATHER		70.76712
178	VALVE – SHUT-OFF – BARKSDALE – 133-R3-HM2 – 1/2 – 2-WAY		4.712
179	VALVE – NEEDLE – ALLOY STL – 3/4 FPT E11099 MARSH INSTRUMENT CO.FFG-N151	FFG-N1516	70.06874
180	VALVE – NEEDLE – ALLOY STL – 1/2 FPT E11099 MARSH INSTRUMENT CO.FFG-N151	FFG-N1514
181	VALVE		70.95017
182	TACHO METER		70.79370
183	VALVE ASSY 4 WAY AIR		70 93970
184	TRANSMITTER COLUMBIAN MODEL 52		70.17811
185	REGULATOR		70.38224
186	CONTROL HYDRAULIC		70.78059
187	PINION O- RING	R2-120-00
188	PISTON SEAL	RS-297
189	NYLON SLUG	B8457-19
190	ROCK BOLT	HTR 009R03
191	CYLINDER O-RING	R2-023-00
192	O-RING END CAP	R2-018-00
193	TIE ROD	CH-C02528-0225
194	ROCK BOLT O-RING	R2-009-00
195	BACK UP RING	RT8-009-0
196	RELIFE VALVE	B 8266
197	BEARING RETURNER O- RING	R2-136-00
198	DRIVE COUPLING	B 8368
199	GASKET	B 8481
200	DOWELL PIN	B 8370
201	O-RING PINION	R2-222-00
202	PISTON SEAL	RS-397
203	NYLON SLUG	B 8458-38
204	O-RING CYLINDER	R2-030-00
205	O-RING END CAP	R2-018-00
206	O-RING ROCK BOLT	R2-013-00
207	O-RING BEARING RETIENER	R2-231-00
208	DONKEY DICK RUBBER DIAPHRAM		444.00909
209	RUBBER DIAPHRAM 1502		446.05415
210	SAFETY VALVE		160.65
211	TRANS OUT PUT SHAFT SEAL	6773311	130.04145
212	OUT PUT SHAFT NUT TRANS		195.22962
213	AIR REGULATOR 0 TO 30 PSI		70.24124
214	AIR REGULATOR 0 TO 60 PSI		441.00915
215	VICTALIC GASKET 2 INCH
216	VICTALIC GASKET 3 INCH
217	VICTALIC GASKET 4 INCH
218	VICTALIC GASKET 5 INCH
219	VICTALIC GASKET 6 INCH
220	VICTALIC Coupling 2 INCH (Model 75)
221	VICTALIC Coupling 3 INCH (Model 75)
222	VICTALIC Coupling 4 INCH (Model 75)
223	VICTALIC Coupling 5 INCH (Model 75)
224	VICTALIC Coupling 6 INCH (Model 75)
225	VICTALIC Coupling 2 INCH (Model 78)
226	VICTALIC Coupling3 INCH (Model 78)
227	VICTALIC Coupling 4 INCH (Model 78)
228	VICTALIC Coupling 6 INCH (Model 78)
229	Micro Motion Coriolis F‐Series Sensor; 3‐inch; 316L Stainless Steel	F300S410F2BZEZZZZ
230	Micro Motion 5700 Micro Motion Field Mount Transmitter	5700R12ABZAZZZA AZZAMV
231	Supply, Erection, Installation, and commissioning of DATA Monitor (SYSTEM UPGRADATION)	RETROFIT
1	ADAPTER, TOOL, INSTALLATION STOP & SPRING RETAINER, CHANNEL, HT-400 FE	100002989	316.27265
2	WRENCH, TEE, STOP & SPRING RETAINER, 5 3/4 HT-400 FLUID END	100002983	316.2576
3	PUNCH, GUIDE BUSHING REMOVING, 4 IN HP HT-400 FLUID END	100002910	316.2277
4	INSERTING TOOL ASSEMBLY, INSERT, #3, #4 & #5 LOC, TAB VALVES, HT-400 FE	100009621	316.2234
5	TOOL, SEAL REMOVING, VALVE SEAT, HT-400, 3.38 IN	100002865	316.2180
6	GUARD, SAFETY CHAIN, HYDRAULIC VALVE SEAT PULLER 340.390	100003076	340.3908
7	RAM ASSEMBLY, HYDRAULIC, AC, VP, T-10, HT-400 & HQ-400 VALVE SEAT	100007829	340.39013
8	PULLER ASSEMBLY, #4 FRAC VALVE SEAT, 4 & 4 1/2 HT-400 FE		316.22715
9	TOOL, VALVE SEAT INSERTING, HT-400, 4.0, 4.5 IN	100011709	316.2259
10	WRENCH, SOCKET, PLUNGER TIE BOLT, HT-400 PUMP FLUID END	100002978	316.2555
11	PLUNGER REMOVING TOOL, HT-400 & T-10 FLUID END	100002979	316.25571
12	INSERTING TOOL, TIE ROD HALF, T-10 & HT-400 PUMP	100002803	315.90033
13	INSERTING TOOL, PLUNGER HALF, T-10 & HT-400 PUMP	100002802	315.90032
14	WRENCH, PACKING NUT ADJUSTING, 5 3/4 HT-400 FLUID END	100002977	316.2554
15	WRENCH, PACKING NUT ADJUSTING, CONSTANT TORQUE	100058527	316.25508
16	DRIVE, PACKING NUT ADJUSTING, 5 3/4 HT-400 FLUID END	100002985	316.2578
17	TOOL, PACKING INSERTING, HT-400, 3.38 IN	100002864	316.2174
18	WRENCH, BOX, 2 IN 12 POINT, STRIKING FACE	100030687	70.64058
19	BAR, TOOL, L/SPACER PLUNGER ADAPTER, HT-400	100058374	316.22173
20	WIPER TOOL ASSEMBLY, PUSH ROD, L-SPACER, HT-400	100002835	316.21068
21	WRENCH, LOCKNUT, HT-400 FLUID END & POWER END, FOR L-SPACER	100002982	316.25752
22	GUIDE, PLUNGER CENTERING, 4 1/2 X 5 1/2, HT-400		316.22518
23	TOOL, SLEEVE INSTALLING, HT-400, 4.0, 4.5 IN		316.22985

On-Rig Fault Repair Cases

Case 1: HT-400 Frac Pump Valve Failure & Pressure Loss

An HT-400 4.0” plunger frac pump experienced sudden pressure loss during fracturing, caused by a worn urethane valve insert (100002823) and degraded valve seat. The failure reduced pumping efficiency and halted operations. Replacing the valve insert, tapered seat, and surrounding O-rings restored full pressure capacity and sealed fluid leaks.

Case 2: Halliburton C-Pump Shaft Seal Leak

A Halliburton 4×4×12 mix water pump developed severe fluid leakage from the shaft seal, caused by a worn oil seal and degraded O-ring. The leak contaminated surrounding components and reduced pump output. Installing a new shaft sleeve, oil seal, and OEM O-ring eliminated leaks and restored smooth pump rotation.

Case 3: Allison HT-750 Transmission Filter Clog

An Allison HT-750 transmission experienced shifting issues and low hydraulic pressure, traced to a clogged 25-micron hydraulic filter. The clog restricted fluid flow and risked transmission damage. Replacing the filter element and transmission gasket kit restored proper pressure and smooth operation.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts compatible only with HT-400 4.0″ plunger pumps?	This catalog covers HT-400 (4.0″) frac pumps, plus Halliburton C-Pumps, Allison HT-750 transmissions, Detroit 4-71 engines, and related rig equipment; parts are labeled for exact model-specific fitment.
What is the service life of HT-400 valve inserts?	Standard brown urethane valve inserts last 2,000-2,500 frac hours under normal operating conditions; replace immediately if wear, cracking, or pressure loss is detected.
Do these parts meet API high-pressure standards?	Yes, all high-pressure manifold and frac pump components comply with API 6A standards, rated for up to 15,000 PSI working pressure and 22,500 PSI test pressure.

Procurement Guidance & Closing Statement

For rig maintenance teams, procurement managers, and service technicians responsible for keeping HT-400 frac pumps, Halliburton C-Pumps, Allison HT-750 transmissions, and auxiliary rig equipment operational in high-demand oilfield environments, this maintenance parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical components. Backed by strict industry manufacturing standards and exact OEM part number matching, these components eliminate compatibility risks, streamline on-rig repair workflows, and provide a clear technical benchmark to resolve equipment faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency pump/transmission repairs, or planned full equipment overhauls, these model-specific spare parts ensure adherence to API and global oilfield safety standards, minimize costly unplanned rig downtime, and preserve the long-term service life of your critical drilling and fracturing equipment. Secure the precise valves, seals, filters, fasteners, and specialized tools your rig needs to maintain reliable, efficient, and uninterrupted field operations.