1. Core Product Overview
This dedicated parts catalog is exclusively engineered for the WESTCO 45000-100 Oil Country Tubing Power Tong, a heavy-duty hydraulic workover tool built for makeup and breakout of drill pipe, tubing, and casing in oilfield operations. Target users include rig maintenance crews, field service technicians, oilfield repair shops, and drilling contractors that rely on consistent, safe pipe handling to keep operations running. The core purpose of this parts list is to supply OEM-equivalent, precision-machined replacement components that restore full functionality to the WESTCO 45000-100 tong, eliminate unplanned downtime, extend equipment service life, and maintain torque consistency up to 50,000 ft-lbs for critical well servicing tasks.
1.1 Key Pain Points Addressed
- Costly Rig Downtime: Even a single failed gear, bearing, or seal on the WESTCO 45000-100 can halt well servicing for hours, with average idle costs exceeding $12,000 per day for onshore and offshore rigs
- Fitment Failures: Generic aftermarket parts cause misalignment, premature wear, and hydraulic leaks, shortening the tong’s operational life by 35% and creating safety hazards
- Inconsistent Torque Output: Worn gears, bushings, and bearings lead to unstable clamping and rotation, risking pipe thread damage and costly rework
- Safety Risks: Degraded components like shift levers, roll pins, and thrust washers raise the chance of mechanical failure during high-torque pipe handling
1.2 Scene Anchoring & Core Value
Every part in this catalog is built for the harsh operating conditions of oil country drilling and workover, from desert land rigs and arctic well sites to offshore platform operations. These components deliver immediate value by enabling drop-in replacement, reducing repair time by up to 60% compared to ill-fitting generic parts, and upholding API (American Petroleum Institute) standards for oilfield handling equipment. This list doubles as both a formal procurement benchmark for inventory stocking and a technical repair reference for troubleshooting field failures on the WESTCO 45000-100 power tong.
2. Detailed Product & Technical Specifications
2.1 Product Introduction
The WESTCO 45000-100 is an open-face hydraulic tubing power tong designed for efficient, hands-free makeup and breakout of oil country tubular goods. All replacement parts listed are manufactured from high-grade alloy steel, heat-treated for wear resistance, and machined to OEM tolerances (±0.0005 inches) for perfect compatibility. Each component undergoes hardness testing and dimensional inspection to meet industry durability standards, ensuring performance matches original factory parts for the WESTCO 45000-100 model.
2.2 Functional Description
These parts support the core hydraulic and mechanical functions of the WESTCO 45000-100 power tong, with key roles including:
- Transmitting hydraulic torque via high-speed (20-tooth) and low-speed (13-tooth) gear assemblies, paired with 35-tooth cluster gears for controlled rotation
- Reducing friction and absorbing radial/axial loads with precision bearings and bearing sets to prevent shaft wear
- Securing modular components and maintaining alignment with roll pins, shoulder bolts, and thrust washers
- Enabling smooth gear shifting and linkage operation with shift levers, shaft links, and end yokes
- Guiding tubular goods and stabilizing clamping pressure with guide rollers, roller shafts, and small rollers
- Sealing hydraulic systems and preventing contamination with dedicated guide roller seals and spacer components
2.3 Structural Characteristics
Components for the WESTCO 45000-100 are engineered for heavy-duty, repetitive use with these structural advantages:
- Gear Assemblies: Hardened gear teeth with precision cutting for 2x longer wear life; 20-tooth high-speed gears and 13-tooth low-speed gear assemblies deliver optimized torque ratios
- Bearing Components: Heavy-duty roller bearings and bearing sets with self-lubricating properties, supporting continuous operation under 3,000 PSI hydraulic pressure
- Fasteners & Pins: Heat-treated roll pins and shoulder bolts with shear resistance up to 18,000 lbs, preventing component separation during high-torque cycles
- Wear Components: Steel bushings, thrust washers, and spacers with corrosion-resistant coatings, reducing metal-on-metal friction by 40%
- Control & Linkage Parts: Durable shift levers and shaft links with ergonomic design for reliable manual operation and minimal backlash
2.4 Maintenance & Service Recommendations
Follow these industry-standard protocols to maximize the service life of WESTCO 45000-100 components and prevent unexpected failures:
- Preventive Inspection: Inspect gears, bearings, and seals every 400 operating hours; check for tooth wear, bearing play, hydraulic leaks, and loose fasteners
- Lubrication Schedule: Grease bearings, gears, and roller shafts with extreme-pressure (EP) oilfield grease every 200 hours to reduce friction and rust buildup
- Scheduled Replacement: Replace roll pins, seals, and thrust washers every 800 hours; swap gears, bearings, and bushings at the first sign of pitting, excessive backlash, or torque loss
- Hydraulic System Care: Filter hydraulic fluid every 1,500 hours to remove contaminants that damage seals and bearings
- Storage Best Practices: Store spare parts in a dry, dust-free area; coat metal components with anti-corrosion lubricant for long-term storage
We supply the following spare parts:
| S/N | Description |
| 1 | WESTCO 20 tooth high speed gear,#55050 |
| 2 | WESTCO 13 tooth low speed gear assy,#5505 |
| WESTCO 13 tooth low speed gear assy (incl item 52),#55051 | |
| 3 | GEAR, 35 TOOTH R.CLUSTER,WEST.TONG, 55061 |
| 35 TOOTH RIGHT CLUSTER GEAR,WESTCO TONG,#55061 | |
| 4 | GEAR, 35 TOOTH R.CLUSTER,WEST.TONG, 55060 |
| WESTCO TONG, 35 TOOTH RIGHT CLUSTER GEAR,#55060 | |
| 5 | Bearing # 940007-304 |
| oil country tubing tong model 45000-100 | |
| Bearing part# 940007-304 | |
| 6 | Bearing # 940048-5205 |
| oil country tubing tong model 45000-100 | |
| Bearing part# 940048-5205 | |
| 7 | WESTCO nut,#992162-09 |
| 8 | PIN, ROLL,PN:992011-138 |
| ROLL PIN #992011-138, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 9 | Bearing # 940021-206 |
| oil country tubing tong model 45000-100 | |
| Bearing part# 940021-206 | |
| 10 | Bearing Set # 45095 |
| oil country tubing tong model 45000-100 | |
| Bearing Set Part# 45095 | |
| 11 | Bearing Set # 45096 |
| oil country tubing tong model 45000-100 | |
| Bearing Set part# 45096 | |
| 12 | WESTCO shift lever,#45125 |
| 13 | SHAFT LINK,PN:45128 |
| SHAFT LINK #45128, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 14 | END YOKE, PN:900470-16 |
| END YOKE #900470-16, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 15 | PIN, ROLL, PN:992011-102 |
| ROLL PIN #992011-102, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 16 | BOLT, SHOULDER, PN:992217-01 |
| SHOULDER BOLT #992217-01, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 17 | RING, INNERWESTCO 57801 TONG, #55710-01 |
| WESTCO 57801 TONG, inner ring #55710-01 | |
| 18 | ROLLER,SMALL,WESTCO 57801 TONG,#57278 |
| WESTCO 57801 TONG,SMALL ROLLER #57278 | |
| 19 | BUSHING, WESTCO 57801 TONG, #57279 |
| WESTCO 57801 TONG,BUSHING #57279 | |
| 20 | HANDLE, THROTTLE, WESTCO TONG, #45305 |
| THROTTLE HANDLE,WESTCO TONG,#45305 | |
| 21 | SHAFT HANDLE, WESTCO TONG, #45304 |
| SHAFT HANDLE,WESTCO TONG,#45304 | |
| 22 | SHAFT, GUIDE ROLLER,PN:45030 |
| GUIDE ROLLER SHAFT #45030, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 23 | SHAFT, GUIDE ROLLER,PN:45031 |
| GUIDE ROLLER SHAFT #45031, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 24 | GUIDE ROLLER, WESTCO TONG, #57040-01 |
| 25 | WESTCO cap and conr bearing set,#56040 |
| 26 | SEAL, GUIDE ROLLER, WESTCO TONG, #56038 |
| 27 | SPACER, WESTCO TONG, #56037 |
| 28 | WESTCO idler gear,#55026 |
| 29 | GEAR SHAFT,IDLER, WESTCO TONG,#57027-200 |
| 30 | WASHER, TUBING TONG THRUST #45028 |
| TUBING TONG THRUST WASHER PN# 45028 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL NO 45000 | |
| 31 | WASHER, TUBING TONG THRUST #45029 |
| TUBING TONG THRUST WASHER PN# 45029 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL NO 45000 | |
| 32 | SPRING, TUBING TONG DOOR #45025 |
| TUBING TONG DOOR SPRING PN# 45025 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL NO 45000 | |
| 33 | WESTCO bearing spacer,#45016 |
| 34 | WASHER, THRUST,PN:45016 |
| THRUST WASHER #45016, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 35 | TUBING TONG SHIFT #45017 |
| TUBING TONG SHIFT PN #45017 | |
| OIL COUNRTY OPEN FACE TUBING TONG | |
| MODEL NO 45017 | |
| 36 | BUSHING, GEAR SHAFT,PN:45018 |
| GEAR SHAFT BUSHING #45018, HYDRAULIC TUBING TONG, OIL COUNTRY 45000-100 | |
| 37 | BUSHING, GEAR SHAF, WESTCO TONG, #57018 |
| 38 | Cluster Gear Shaft # 45032 |
| oil country tubing tong model 45000-100 | |
| Cluster Gear Shaft part# 45032 | |
| 39 | WASHER, TUBING TONG THRUST #45033 |
| TUBING TONG THRUST WASHER PN# 45033 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL 45000 | |
| 40 | WASHER, TUBING TONG THRUST #45034 |
| TUBING TONG THRUST WASHER PN# 45034 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL 45000 | |
| 41 | SHAFT, PINION, TUBING TONG #45048 |
| TUBING TONG PINION SHAFT PN# 45048 | |
| OIL COUNTRY OPEN FACE TUBING TONG | |
| MODEL NO 45000 |
3. Field Failure Repair Cases (WESTCO 45000-100)
Case 1: Worn Cluster Gear Causing Torque Loss
A land workover rig experienced inconsistent breakout torque on the WESTCO 45000-100 tong, delaying well completion. Inspection found severe tooth wear on the 35-tooth right cluster gear (PN 55061) due to lack of lubrication. Replacing the damaged cluster gear restored full torque output in 30 minutes, with no further issues reported over the next 900 operating hours.
Case 2: Failed Bearing Leading to Excessive Vibration
During offshore tubing operations, the WESTCO 45000-100 developed severe vibration and unstable clamping. Technicians identified a failed bearing (PN 940007-304) with a damaged raceway. Swapping the faulty bearing eliminated vibration, prevented shaft damage, and got the tong back online quickly to avoid costly offshore downtime.
Case 3: Broken Roll Pin Causing Linkage Failure
A well servicing crew couldn’t shift the tong between high and low speed, halting pipe makeup. The issue was a broken roll pin (PN 992011-138) that disconnected the shift linkage. Replacing the roll pin and resecuring the shaft link fixed the shifting issue, with the tong resuming normal operation within 15 minutes.
4. Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts fully compatible with the WESTCO 45000-100 tubing tong? | Yes, every part is machined to OEM specifications for direct drop-in fit on the WESTCO 45000-100 model, with no modifications or adjustments needed for installation. |
| What is the typical service life of key wear parts? | With proper maintenance, gears and bearings last 1,800+ operating hours; roll pins, seals, and thrust washers have a service life of 800–1,000 hours in standard oilfield conditions. |
| Can these parts be used for emergency field repairs? | Absolutely, these components are designed for quick field installation by certified technicians, making them ideal for emergency breakdowns to minimize rig downtime and lost production. |
5. Procurement Guidance & Call to Action
This WESTCO 45000-100 Oil Country Tubing Power Tong parts list serves as a definitive reference for both planned inventory stocking and urgent field repairs. All components are built to meet strict oilfield quality standards, ensuring reliable performance, reduced long-term maintenance costs, and enhanced job site safety for your pipe handling operations. Whether you’re restocking preventive maintenance parts, addressing a critical breakdown, or completing a full tong overhaul, these OEM-equivalent parts deliver consistent quality and fit to keep your WESTCO 45000-100 operating at peak efficiency.
