Product Description
This comprehensive collection features direct-fit OEM replacement parts for full repairs and maintenance of the PUMP 375-7M fluid end, covering crankshaft bearings, connecting rod bushings, sealing gaskets, carbide plungers, suction/discharge valves, lubrication components, fasteners, and electrical control switches. Unlike generic aftermarket alternatives, each component is built to the exact design, material, and tolerance specifications of the original PUMP 375-7M fluid end, ensuring seamless installation, zero compatibility errors, and reliable performance under the harsh conditions of oilfield drilling. The lineup is curated to cover all high-wear, high-failure-rate parts needed for routine upkeep, partial repairs, and full fluid end overhauls.
Functional Specifications
- Sealing & Gasket Components: High-pressure gaskets (1714011, 1714027) and oil wipers prevent drilling fluid and lubricant leaks; rubber and composite packing seals maintain pressure integrity up to 3,000 PSI, resisting abrasion from drilling mud and chemical corrosion.
- Moving Wear Parts: 3-1/4” carbide plungers (1715155) deliver wear-resistant fluid displacement; precision-machined connecting rod bushings and crosshead pins reduce friction and absorb heavy pump vibration; suction and discharge valves regulate fluid flow with tight shutoff to prevent backflow.
- Bearing & Crankshaft Parts: Timken and main bearing assemblies support crankshaft operation under heavy loads; bearing cages and lock nuts ensure stable alignment, reducing premature wear and extending crankshaft life.
- Lubrication & Plumbing Components: Custom lubricator assemblies and Synflex tubing deliver consistent lubrication to critical moving parts; precision fittings and connectors maintain leak-proof fluid and lubricant lines.
- Electrical & Control Parts: Pressure and temperature switches, manual control buttons, and electronic load sharing modules monitor pump performance and trigger safety shutoffs to prevent catastrophic failure.
Structural Characteristics
All PUMP 375-7M fluid end spare parts feature rugged, drilling-grade construction for maximum durability: metal components use forged steel and heat-treated alloys to resist fatigue and abrasion; sealing elements use high-pressure rubber and composite materials to maintain integrity under extreme pressure; bearings use precision-ground races for low-friction operation; fasteners use high-tensile steel to withstand torque and continuous vibration. Components are designed for tool-friendly on-site installation, minimizing repair time during critical drilling windows and reducing labor costs for maintenance crews.
Applicable Operating Conditions
These spare parts are engineered to perform reliably in the extreme conditions of oilfield and industrial drilling, including:
- Continuous high-pressure operation up to 3,000 PSI for mud pumping and fluid transfer
- Exposure to abrasive drilling mud, corrosive well fluids, and harsh chemical additives
- Ambient temperatures ranging from -5°F (-20°C) to 122°F (50°C) in remote drilling sites
- 24/7 operation with high vibration and heavy cyclic loading
- Compliance with API 7K standards for land-based drilling rigs and well servicing equipment
Maintenance & Servicing Recommendations
- Pre-Installation Checks: Cross-reference OEM part numbers against PUMP 375-7M technical manuals to confirm exact fit; inspect parts for shipping damage and clean all mating surfaces to remove mud, debris, and old seal residue.
- Seal & Packing Replacement: Replace worn packing seals and gaskets every 1,500 operating hours; lubricate seals with approved drilling fluid lubricant during installation to prevent tearing and ensure proper seating.
- Valve & Plunger Maintenance: Inspect suction/discharge valves for wear and corrosion monthly; replace carbide plungers at the first sign of scoring or pitting to maintain pressure integrity; torque valve hardware to OEM specifications.
- Bearing & Lubrication Care: Monitor bearing noise and temperature regularly; flush and refill lubrication systems every 2,000 hours; inspect tubing and fittings for leaks or blockages to ensure consistent lubrication flow.
- Post-Repair Testing: Pressure-test the fluid end after repairs to check for leaks; run the pump at low speed to verify smooth operation of moving parts; calibrate pressure and temperature switches to ensure proper safety functionality.
We supply the following spare parts:
| ITEM | DESCRIPTION | UOM | PN |
| 1 | GASKET CROSSHEAD COVER, N/P 1714011 | EAC | 1714011 |
| 2 | BUSHING CONN ROD CRANK END, N/P 1714012 | EAC | 1714012 |
| 3 | OIL TROUGH, N/P 1714024P | EAC | 1714024P |
| 4 | GASKET TOP COVER, N/P 1714027 | EAC | 1714027 |
| 5 | WIPER OIL, N/P 1714297 | EAC | 1714297 |
| 6 | PIN CROSSHEAD, N/P 1715008 | EAC | 1715008 |
| 7 | GASKET CENTER COVER, N/P 1715028 | EAC | 1715028 |
| 8 | BOLT HOOK INT ROD RET, N/P 1716031 | EAC | 1716031 |
| 9 | SEAL INT ROD RETAINER, N/P 2410031274 | EAC | 2410031274 |
| 10 | PIN SPRING SLOT STEEL STD, N/P 6570816 | EAC | 6570816 |
| 11 | BOLT CONN ROD, N/P 1714008 | EAC | 1714008 |
| 12 | BUSHING CROSSHEAD PIN, N/P 1715010 | EAC | 1715010 |
| 13 | CAP BREATHER, N/P 7802020 | EAC | 7802020 |
| 14 | GAGE DIPSTICK OIL, N/P 2400029 | EAC | 2400029 |
| 15 | BEARING, CRANKSHAFT, N/P 49012081 | EAC | 49012081 |
| 16 | BEARING, MAIN, N/P ZT7086 | EAC | ZT7086 |
| 17 | SLINGER, CRANKSHAFT, N/P 1121800 | EAC | 1121800 |
| 18 | CAGE, MAIN BEARING LH, N/P 1714007 | EAC | 1714007 |
| 19 | SPROCKET NUEVO N/P 1714216, (REPLACED – N/P 1714016 OLD PN) | EAC | 1714216 |
| 20 | RING SNAP, N/P 1714017 | EAC | 1714017 |
| 21 | GASKET BEARING RETAINER, N/P 1714032 | EAC | 1714032 |
| 22 | RING MAIN BEARING SNAP, N/P 1715020 | EAC | 1715020 |
| 23 | GASKET MAIN BEARING CAGE LH, N/P 1715030 | EAC | 1715030 |
| 24 | GASKET MAIN BEARING CAGE RH, N/P 1715031 | EAC | 1715031 |
| 25 | PIN SPRING SLOT STEEL STD 3/1, N/P 6571212 | EAC | 6571212 |
| 26 | WASHER TIMKEN BEARING LOCK, N/P 7610058 | EAC | 7610058 |
| 27 | KEY CRANKSAHAFT, N/P 2404075 | EAC | 2404075 |
| 28 | NUT TIMKET BEARING LOCK, N/P 6304058 | EAC | 6304058 |
| 29 | PIPING LUBRICATION, N/P 1714023 | EAC | 1714023 |
| 30 | INTERMEDIATE ROD ASSY S.S, N/P 1714465 | EAC | 1714465 |
| 31 | 3-1/4″ CARBIDE PLUNGER, N/P 1715155 | EAC | 1715155 |
| 32 | LUBRICATOR ASSY WITH S.S LINES N/P 1714466 | EAC | 1714466 |
| 33 | COVER CRANKSHAFT EXTENSION LONG W/CUTOUT, N/P 1715215 | EAC | 1715215 |
| 34 | CHAIN RC35-1 3/8″ P 135 PITCHES, N/P 5700011-135 | EAC | 5700011-135 |
| 35 | SPROCKET, 3/8″ P 40 TEETH, N/P 1715029 | EAC | 1715029 |
| 36 | KEY 3/16 X 3/16 X 3/8 RBE, N/P 2402570 | EAC | 2402570 |
| 37 | PUMP, B&S, N/P 7815071 | EAC | 7815071 |
| 38 | BLOCK MOUTING, N/P 1715327 | EAC | 1715327 |
| 39 | WASHER STAT-O-SEAL PARKER # 600-0101- 3/8″, N/P 7618014 | EAC | 7618014 |
| 40 | CAPSCREW HEX HD 3/8 X 1 -1/2, N/P 7000204-11 | EAC | 7000204-11 |
| 41 | TUBING 1/4″ SYNFLEX 4246-0410, N/P 7819106-0 | FT | 7819106-0 |
| 42 | TEE STD M.I PIPE 1/2, N/P 6888004 | EAC | 6888004 |
| 43 | NIPPLE STD. PIPE 1/2″ X 1-1/2″, N/P 86424003 | EAC | 86424003 |
| 44 | TUBING SYNFLEX 3250-0810 1/2 X 0.62, N/P G7819150 | FT | G7819150 |
| 45 | ELBOW WEATHERHEAD 1469X8X8, N/P 7804265 | EAC | 7804265 |
| 46 | ELBOW STD M.I STREET 90º X 1/2, N/P 6829004 | EAC | 6829004 |
| 47 | FITTING BODY 1/8 NPT M & F LINCOLN #20029, N/P 7805050 | EAC | 7805050 |
| 48 | CONNECTOR WEATHERHEAD 1468 X 4K, N/P 7802477 | EAC | 7802477 |
| 49 | ELBOW WEATHERHEAD 1469X4X4K, N/P 7804223 | EAC | 7804223 |
| 50 | CAPSCREW HEX HD 1/4″ X 2-1/4, N/P 7000113-11 | EAC | 7000113-11 |
| 51 | PLUG STD SQ HD 1/4″, N/P 6874002 | EAC | 6874002 |
| 52 | BLOCK SAFTEY VALVE, N/P 1715035 | EAC | 1715035 |
| 53 | VALVE SAFTEY, N/P 2232072 | EAC | 2232072 |
| 54 | CLIP 1/4 TUBE PARKER 3121-1-4, N/P 7802204 | EAC | 7802204 |
| 55 | CLIP PARKER HANNFIN 3121-1-8, N/P 7802215 | EAC | 7802215 |
| 56 | SCREW RD HD DR TYPE U #10 X 3/8, N/P 7178088 | EAC | 7178088 |
| 57 | CONNECTOR WEATHERHEAD 1468X4X4K, N/P 7802478 | EAC | 7802478 |
| 58 | BUSHING STD PIPE 3/8 X 1/4, N/P 6800031 | EAC | 6800031 |
| 59 | ADAPTER GAGE, N/P G1717032 | EAC | G1717032 |
| 60 | ELBOW STD M.I STREET 90º X 3/8, N/P 6829003 | EAC | 6829003 |
| 61 | GAGE MARSH 2 1/2″ 0-100 PSI 1/4″ NPT, N/P 7806605 | EAC | 7806605 |
| 62 | ELBOW WEATHERHEAD 1469X6X8K, N/P 7804227 | EAC | 7804227 |
| 63 | ELBOW WEATHERHEAD 1469X6X6, N/P G7804246 | EAC | G7804246 |
| 64 | TEE WEATHERHEAD 1472X6X6, N/P G7619156 | EAC | G7619156 |
| 65 | TUBING 3/8 SYNFLEX 3250-0610, N/P 78191070 | FT | 78191070 |
| 66 | WASHER 3/8 N TYPE A 81 OD CAD PLT, N/P 7621024 | EAC | 7621024 |
| 67 | ASSEMBLY PLUNGER KITS 3 ¼ X 4 ¼ N/P 1714461 | EAC | 1714461 |
| 68 | 3-1/4″850-N UNIVERSAL PACKING, N/P 6422342 | EAC | 6422342 |
| 69 | VALVE SUCTION, N/P 1794020-25SD | EAC | 1794020-25SD |
| 70 | VALVE DISCHARGE, N/P 1794022-25SD | EAC | 1794022-25SD |
| 71 | SHIM – LSP N/P AP-169852 | EAC | AP-169852 |
| 72 | SHIM – HS N/P AP-016417 | EAC | AP-016417 |
| 73 | BEATHER N/P BP-026433 | EAC | BP-026433 |
| 74 | SEAL – ISP N/P E-9030560 | EAC | E-9030560 |
| 75 | SEAL – HS N/P E-9030403 | EAC | E-9030403 |
| 76 | GASKET – INSPECTION COVER N/P AP-073935 | EAC | AP-073935 |
| 77 | GASKET – LSP N/P AP-167761 | EAC | AP-167761 |
| 78 | GASKET – HS N/P AP-167756 | EAC | 167756 |
| 79 | CONE LS – BEARING N/P 67388 | EAC | 67388 |
| 80 | CUP LS – BEARING N/P 67322 | EAC | 67322 |
| 81 | CONE HS – BEARING N/P 677 | EAC | 677 |
| 82 | CUP HS – BEARING N/P 672 | EAC | 672 |
| 83 | SET FALK ACOPLE 1100T COMPLETO MECANIZADO N/P 1100T10 | EAC | 1100T10 |
| 84 | HUB (MANZANA) N/P H1100T | EAC | H1100T |
| 85 | COVER (CUBIERTA) N/P C1100T10 | EAC | C1100T10 |
| 86 | GRID (REJILLA) N/P G1100T | EAC | G1100T |
| 87 | SET FALK ACOPLE 1110T COMPLETO MECANIZADO N/P 1110T10 | EAC | 1110T10 |
| 88 | HUB (MANZANA) N/P H1110T | EAC | H1110T |
| 86 | COVER (CUBIERTA) N/P C1110T10 | EAC | C1110T10 |
| 90 | GRID (REJILLA) N/P G1110T | EAC | G1110T |
| 91 | ENGINE HIGH TEMP SWITCH GAUGE, N/P 25T250-20 | EAC | 25T250-20 |
| 92 | ENGINE OIL PRESS SWITCH GAUGE, N/P 25P75 | EAC | 25P75 |
| 93 | TIMER SWITCH, N/P 5T | EAC | 5T |
| 94 | STAR/RUN PUSH BUTTOM, N/P 25A | EAC | 25A |
| 95 | MANUAL STOP/RUN SWITCH, N/P 25B | EAC | 25B |
| 96 | LOW LEVEL SWITCH GAUGE, N/P OPLHACE20 | EAC | OPLHACE20 |
| 97 | HIGH DISCH. PRESS. SWITCH GAUGE, N/P OPLFCS3000OS | EAC | OPLFCS3000OS |
| 98 | DIGITAL ELECTRONIC LOAD SHARING AND SPEED CONTROL WOODWARD 2301D | EAC | |
| 99 | MICRO-CONTROLLER SELECTRONIC SERIE 500 | EAC |
On-Site PUMP 375-7M Fluid End Fault Repair Cases
Case 1: Fluid Leakage from Worn Packing Seals
A drilling rig’s PUMP 375-7M experienced severe mud leakage around the plunger assembly, caused by degraded 6422342 universal packing seals. The worn seals failed to maintain pressure integrity, leading to fluid loss and reduced pumping efficiency. Replacing the old packing with new OEM seals and re-torquing the assembly eliminated leaks and restored full pressure performance.
Case 2: Premature Bearing Failure & Crankshaft Noise
A PUMP 375-7M developed loud operational noise and excessive crankshaft vibration, traced to worn main bearings (ZT7086) and misaligned bearing cages. The damaged bearings caused uneven load distribution, risking crankshaft breakage. Installing new bearing assemblies, realigning the crankshaft, and torquing lock nuts resolved vibration and restored quiet operation.
Case 3: Suction Valve Malfunction & Low Pump Output
A PUMP 375-7M showed reduced fluid output and inconsistent pressure, caused by stuck and worn 1794020-25SD suction valves. Debris buildup and seal wear prevented proper valve opening/closing, disrupting mud flow. Cleaning the valve seats and replacing faulty suction valves restored full pumping capacity and stable pressure.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with the PUMP 375-7M fluid end? | Yes, every part in this catalog is precision designed exclusively for the PUMP 375-7M fluid end, with exact OEM part numbers and dimensions to guarantee perfect fitment and performance. |
| What is the recommended replacement interval for packing seals? | For heavy drilling use, replace 6422342 universal packing seals every 1,500 operating hours, or immediately if leaks or pressure drops occur to prevent further damage. |
| Do these parts meet API 7K drilling equipment standards? | All critical wear and pressure-containing parts comply with API 7K standards for mud pump components, ensuring safety and reliability for oilfield drilling operations. |
Procurement Guidance & Closing Statement
For maintenance and procurement teams responsible for keeping PUMP 375-7M fluid ends operational in oilfield drilling and well servicing environments, this spare parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical repair components. Backed by strict manufacturing standards and exact part number matching, these components eliminate compatibility risks, streamline on-site repair workflows, and provide a clear technical benchmark to resolve fluid end faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency breakdown repairs, or full fluid end overhauls, these model-specific spare parts ensure adherence to industry safety and performance standards, minimize costly unplanned pump downtime in remote drilling locations, and preserve the long-term service life of your PUMP 375-7M equipment. Secure the precise gaskets, plungers, valves, bearings, and control parts your pump fluid end needs to maintain reliable, high-pressure, uninterrupted drilling operations.
