LETOURNEAU WH1612 Triplex Mud Pump Spare Parts

1. Product Introduction

This complete portfolio features OEM-matched spare parts exclusively engineered for the LETOURNEAU WH1612 triplex mud pump, a heavy-duty workhorse for onshore and offshore drilling mud circulation operations. Every component is cross-referenced to the original factory part numbers, assembly codes, and dimensional specifications, ensuring zero-modification drop-in fitment and full compliance with API 7K drilling equipment standards. This parts catalog covers all critical subassemblies of the WH1612 pump: the lubrication system, suction dampener, pulsation dampener, and fluid end assembly—including liners (5-1/2″ to 7″), pistons, valves, seals, fasteners, gauges, and hydraulic components.

2. Core Purpose

Core Purpose: These LETOURNEAU WH1612 mud pump spare parts serve two critical roles: restoring full operational performance to worn or damaged pump assemblies, and supporting scheduled preventive maintenance to extend the service life of the WH1612 triplex pump. They provide a standardized, reliable procurement and technical reference for maintaining the pump’s pressure output, fluid sealing, lubrication efficiency, and structural integrity under heavy drilling loads.

3. Key Functional Specifications

• Pressure Handling: Fluid end components withstand operating pressures up to 5,000 PSI, with pulsation dampener bladders (BUNA N material) stabilizing pressure surges to ±5% for smooth mud delivery.
• Lubrication System Reliability: 15 PSI and 65 PSI pressure relief valves maintain consistent oil flow, with inline strainers filtering contaminants down to 80 mesh to protect critical pump bearings.
• Wear Component Durability: Oil-resistant valve inserts and piston rubbers deliver 2,000+ operating hours of service life, while precision liners maintain wall thickness tolerances within 0.002″ for optimal sealing.
• Fastener Strength: Heavy-duty studs and nuts meet ASTM A193 Grade 8 standards, with tensile strengths exceeding 150,000 PSI to resist loosening from high-vibration pump operation.

4. Structural & Material Features

All LETOURNEAU WH1612 mud pump parts are constructed with field-proven, industrial-grade materials to withstand harsh drilling environments: pump liners use hardened alloy steel with wear-resistant coating; pistons and valve inserts feature oil-resistant, abrasion-proof elastomers; seals and O-rings utilize BUNA N nitrile rubber for chemical compatibility with drilling mud and lubricants; studs, nuts, and bolts are heat-treated for maximum shear strength; dampener bladders use flexible, pressure-stable BUNA N material to handle repeated pressure cycles. The modular design aligns perfectly with the original WH1612 pump assembly layout, enabling quick on-site replacement and alignment.

5. Applicable Operating Conditions

These spare parts are optimized for heavy-duty triplex mud pump operations, performing reliably in abrasive drilling mud environments, ambient temperatures ranging from -5°F to 160°F, continuous 24/7 operation under high vibration and pressure, and exposure to oil-based and water-based drilling fluids. They are suitable for land drilling rigs, offshore platform mud systems, and workover rigs equipped with the LETOURNEAU WH1612 pump.

6. Maintenance & Care Recommendations

• Scheduled Inspections: Inspect pistons, liners, and valve seats every 150 operating hours; check lubrication system valves, strainers, and gauges every 200 hours; inspect pulsation dampener bladders and seals every 300 hours.
• Lubrication Protocol: Replace lube pump oil and inline strainers every 400 hours; lubricate crosshead manifolds and gear assemblies with extreme-pressure (EP) industrial grease to prevent metal-on-metal wear.
• Wear Replacement Thresholds: Replace liners when wall wear exceeds 0.015″, piston rubbers when cracking or fluid leakage occurs, and valve inserts when seating surfaces show deep pitting.
• Installation Standards: Torque all studs and nuts to OEM-specified values (e.g., 1.375” 6NC studs torqued to 450 ft-lbs); use matching gaskets and backup rings to ensure pressure-tight seals.
• Storage Guidelines: Store elastomeric parts (seals, bladders, pistons) in dry, cool conditions away from direct sunlight to prevent degradation; coat metal fasteners with anti-rust oil during long-term storage.

We supply the following spare parts:

TRIPLEX PUMP  MUD PUMP
WH1612 LETOURNEAU
Item	Unit	Code	Part no	Description
		LUBRICATON SYSTEM
1	EA		108-0054	VAVLE-PR, 15 PSI
2	EA		108-1088	VAVLE-PR, 65 PSI
3	EA		108-0135	VALVE-CHECK, 3/4″
4	EA		108-0059	VALVE-BALL, 3/4″
5	EA		108-1257	SWITCH-FLOW, SENSING
6	EA		ES184	STRAINER-INLINE-MESH ASSY
7	EA		EG190	GAUGE, 2.5, 0-100
8	EA		EF254	COUPLING-1″
9	EA		108-0474	CLAMP-1-1/4″
10	EA		A105488	ELBOW-1″
11	EA		EM106	MAGNET-DIP TANK
12	EA		EG105	GAUGE 2.5
13	EA		108-0699	STRAINER-SUCTION LUBE OIL
14	EA		EP194	PUMP-LUBE
15	EA		B167645	GEAR-LUBE PUMP
16	EA		C155485	MANIFOLD-LUBE, LONG
17	EA		108-1099	MANIFOLD-LUBE, CROSSHEAD
		SUCTION DAMPENER
18	EA		051-3704	BUSHING-1/4″
19	EA		108-0034	CLAMP-HOSE
20	EA		A105219	GASKET-SUCTION DAMPNER
21	EA		108-0051	GAUGE-0-60
22	EA		021-2361	NIPPLE-1/4″
23	EA		A105006	PLUG-1/4″
24	EA		018-2508	TEE-1/4″
25	EA		108-0048	VALVE-1/8″
26	EA		108-0052	VALVE-NEEDLE-1/8″
		PULSATION DAMPENER
27	EA		108-0618	BLADDER, PULSATION BUNA N
28	EA		EG146	GAUGE 0-5K
29	EA		EV215	VALVE-CHARGING
30	EA		ES175	STUD-2.250
31	EA		EN132	NUT-HEAVY 2.250
32	EA		108-0656	SEAL
33	EA		EO190	O-RING
34	EA		EG102	GASKET-RING
		FLUID END ASSEMBLY
35	EA		ES222	STUD , 1.375 6NC V TPR LCK FOR DISCHARGE MODULE
36	EA		ES223	STUD , 1.750 8UN 21.00 V TPR LCK  FOR SUCTION MODULE
37	EA		A105409	PIN .875 DIA X 2.75
38	EA		C164435	FLANGE VALVE COVER
39	EA		B164436	LOCK-VALVE COVER
40	EA		C164704	VALVE COVER
41	EA		A164705	SEAL VALVE COVER
42	EA		C164718	VALVE GUIDE
43	EA		A167708	BUSHING VALVE GUIDE
44	EA		EC220	VALVE GUIDE SCREW
45	EA		108-0959	VALVE COVER STUD
46	EA		EC199	LINER RETAINER SOCKET
47	EA		D167729	LINER LOCK FLANGE
48	EA		C105368	LINER LOCK
49	EA		108-0964	LINER WEAR PLATE
50	EA		A164707	WEAR PLATE AND MODULE GASKET
51	EA		B105389	DISCHARGE CONNECTOR
52	EA		B105390	DISCHARGE ADAPTER
53	EA		B105388	BACK-UP RING
54	EA		108-0531	DISCHARGE SPACER FLANGE
55	EA		108-0674	DISCHARGE SPACER FLANGE SEAL
56	EA		108-0861	DISCHARGE CONNECTOR \ ADAPTER PACKING
57	EA		108-0860	DISCHARGE CONNECTOR \ ADAPTER PACKING
58	EA		EG108	RING GASKET
59	EA		108-0530	STUD 1.500 6NC 7.500 V TPR LCK
60	EA		108-1228	DISCHARGE SPACER FLANGE SOCKET HEAD CAP SCREW
61	EA		400-1871	DISCHARGE CONNECTOR CAP SCREW
62	EA		002-7583	BOLT HX .875 9NC 3.00 G8
63	EA		108-0234	SUCTION MANIFOLD GASKET
64	EA		EN101	PISTON ROD NUT
65	EA		EN118	1.375 6NC HVY HX NUT
66	EA		002-5784	1.500 6NC HVY HX NUT
67	EA		EN111	1.750 6NC HVY HX NUT
68	EA		080-1181	.500 LOCK WASHER
69	EA		002-1543	.875 LOCK WASHER
70	EA		EV116	VALVE SPRING
71	EA		EV190	VALVE SEAT
72	EA		C167638	BAFFLE STRUCTURE
73	EA		080-8476	BOLT HX 3\8-16 NC X 1-1\4 GR. 8
74	EA		EN125	NUT HX 3\8-16 NC GR. 8
75	EA		B186406	ROD-PONY
76	EA		B150118	ROD-PISTON
77	EA		B186401	ROD-SUB
78	EA		EL203	LINER 5-1/2″
79	EA		EL204	LINER 6″
80	EA		EL186	LINER 6-1/2″
81	EA		EL205	LINER 7″
82	EA		NEED IT OIL RESISTANT	VALVE INSERT
83	EA			VALVE COMPLETE
84	EA			PISTON ASSEMBLY 5-1/2″
85	EA			PISTON ASSEMBLY 6″
86	EA			PISTON ASSEMBLY 6-1/2″
87	EA			PISTON ASSEMBLY 7″
88	EA			PISTON RUBBER 5-1/2″
89	EA			PISTON RUBBER 6″
90	EA			PISTON RUBBER 6-1/2″
91	EA			PISTON RUBBER 7″
92	EA			LINER GASKET 5-1/2″
93	EA			LINER GASKET 6″
94	EA			LINER GASKET 6-1/2″
95	EA			LINER GASKET 7″

Field Fault Repair Cases (LETOURNEAU WH1612 Mud Pump)

Case 1: Lubrication System Pressure Failure

A WH1612 pump experienced insufficient lubrication flow, caused by clogged inline strainers (ES184) and faulty 65 PSI pressure relief valves (108-1088). Replacing the strainers and pressure valves restored consistent oil pressure, protecting the pump’s crosshead and gear components from premature wear.

Case 2: Pulsation Dampener Leakage

Severe pressure fluctuations occurred during mud pumping, traced to ruptured BUNA N pulsation dampener bladders (108-0618) and worn O-rings (EO190). Installing new bladders and seals eliminated air intrusion, stabilizing pump pressure and restoring smooth mud circulation.

Case 3: Fluid End Liner & Piston Wear

The pump lost pressure capacity due to worn 6” liners (EL204) and degraded piston rubbers. Replacing the damaged liners and piston assemblies restored full pressure output, resolving mud flow inconsistencies and preventing fluid bypass.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts 100% compatible with the original LETOURNEAU WH1612 triplex mud pump?	Yes, every part is manufactured to match OEM part numbers, dimensions, and specifications for the WH1612 pump, ensuring direct drop-in replacement with no modifications required.
Do you offer liner sizes for all WH1612 pump configurations?	Yes, this catalog includes OEM-compatible liners in 5-1/2″, 6″, 6-1/2″, and 7″ sizes, plus matching piston assemblies, rubbers, and gaskets for full liner replacement coverage.
What is the service life of the BUNA N pulsation dampener bladder (108-0618)?	Under normal drilling conditions and proper maintenance, the 108-0618 bladder lasts 1,800–2,400 operating hours before replacement is recommended.

Closing Section: Procurement Guidance

This comprehensive catalog of LETOURNEAU WH1612 triplex mud pump spare parts serves as your definitive procurement and technical reference standard for maintaining, repairing, and overhauling your WH1612 mud pump. Each component is clearly labeled with its original OEM part number, quantity, and assembly designation to eliminate ordering errors and guarantee full compatibility with your pump’s lubrication, dampener, and fluid end systems. Whether you need to replace worn liners and pistons, fix faulty lubrication valves, repair leaking dampeners, or refresh critical fasteners and seals, these high-quality, durable parts deliver reliable performance to minimize rig downtime and uphold safe, efficient mud pumping operations.