1. Core Overview & Target Application Brief

This comprehensive parts catalog iscustom-engineered exclusively for the KHT5500 hydraulic power tong, a heavy-duty tubular handling tool designed for high-torque makeup and breakout operations in oil and gas drilling, well completion, and workover projects. Tailored to meet the precise needs of drilling contractors, field maintenance technicians, oilfield service crews, and equipment rental providers, these replacement parts solve the most common pain points of KHT5500 power tong operation: premature gear wear, hydraulic seal failure, bearing seizure, torque inaccuracy, and unplanned rig downtime.
2. Detailed Product & Component Specifications
The KHT5500 power tong replacement parts line features premium, wear-resistant components built to withstand the extreme mechanical stress, hydraulic pressure, and harsh field conditions of onshore and offshore drilling operations. Each part is precision-machined with tight tolerances (±0.002 inches for critical gear and shaft interfaces) and crafted from high-grade materials including heat-treated alloy steel, stainless steel, industrial-grade rubber seals, and heavy-duty bearings. This catalog covers all critical subsystems of the KHT5500 power tong—hydraulic drive, gear transmission, jaw assembly, clutch mechanism, sealing system, and control components—serving as a definitive procurement and technical reference for routine maintenance, emergency repairs, and full equipment overhauls.
3. Key Functional Specifications
- Torque Capacity Compatibility: Engineered to support the KHT5500’s maximum torque rating of 25,000 ft-lb, with gear sets and shafts designed to eliminate slippage and maintain accurate torque delivery during tubular makeup.
- Hydraulic System Rating: Seals, valves, and hydraulic motor components optimized for 0-3600 PSI operating pressure, matching the KHT5500’s standard hydraulic power requirements.
- Wear Life Metrics: Heat-treated gears and bearings offer a 15,000+ cycle service life; industrial-grade Y-rings and O-rings resist hydraulic fluid degradation for 2,000+ operating hours.
- Tubular Compatibility: Jaw plates and alignment components designed for 3-1/2”, 4-1/2”, and 5-1/2” tubular sizes, the most common diameters in land and offshore drilling operations.
4.Structural Design Features
- OEM Direct Interchangeability: All part numbers (KHT5500-series) match original equipment specifications, ensuring perfect fitment without modification or reworking.
- Modular Component Design: Precisely matched gear sets, bearing assemblies, and seal kits simplify field installation, cutting repair time by up to 50% compared to generic parts.
- Reinforced Load-Bearing Parts: Gears, shafts, and jaw components feature hardened tooth surfaces and high-tensile construction to handle shock loads during breakout operations.
- Standardized Fastening & Sealing: Unified nut, bolt, and seal dimensions streamline inventory management and reduce the need for custom hardware during repairs.
We supply the following spare parts:
| 1 | LINING RING | KHT5500-106 | EA |
| 2 | DOUBLE ROW ANGULAR CONTACT BALL BEARING 3308 | KHT5500-108 | EA |
| 3 | SMALL INTERMEDIATE WHEEL SHAFT | KHT5500-109 | EA |
| 4 | SMALL INTERMEDIATE WHEEL | KHT5500-110 | EA |
| 5 | CYLINDRICAL ROLLER BEARING NJ208E | KHT5500-115 | EA |
| 6 | LARGE GEAR | KHT5500-117 | EA |
| 7 | GEAR SHAFT | KHT5500-118 | EA |
| 8 | SMALL GEAR | KHT5500-119 | EA |
| 9 | BALL BEARING 111 | KHT5500-122 | EA |
| 10 | SPLINE SHAFT | KHT5500-123 | EA |
| 11 | SHIFT ENGAGEMENT GEAR (UPPER) | KHT5500-124 | EA |
| 12 | BALL BEARING 208 | KHT5500-125 | EA |
| 13 | MAIN SHAFT GEAR | KHT5500-126 | EA |
| 14 | BALL BEARING 218 | KHT5500-127 | EA |
| 15 | INNER GEARED SLEEVE | KHT5500-133 | EA |
| 16 | LARGE CLUTCH GEAR | KHT5500-136 | EA |
| 17 | HEXAGON NUT 1/2″ | KHT5500-19A | EA |
| 18 | POSITIONING SPRING | KHT5500-147 | EA |
| 19 | STEEL BALL 5/16″ | KHT5500-148 | EA |
| 20 | DECLUTCH SHIFT (LOWER) | KHT5500-149 | EA |
| 21 | CHECK NUT 5/8″ | KHT5500-150 | EA |
| 22 | STEEL BALL 6 | KHT5500-152 | EA |
| 23 | CYLINDRICAL ROLLER 10 X 25 | KHT5500-153 | EA |
| 24 | MANDRE 1 | KHT5500-154 | EA |
| 25 | DUPLEX GEAR | KHT5500-155 | EA |
| 26 | DUSTPROOF RING FA 40 X 48 X 5 | KHT5500-375 | EA |
| 27 | Y-RING Y 40 X 50 X 6.3 | KHT5500-374 | EA |
| 28 | O-RING 56 X 3.55 | KHT5500-369B | EA |
| 29 | PISTON ROD | KHT5500-364B | EA |
| 30 | O-RING 32.5 X 3.55 | KHT5500-360 | EA |
| 31 | Y-RING Y 63 X 53 X 6.3 | KHT5500-361B | EA |
| 32 | OIL CUP M6 X 1 | KHT5500-20 | EA |
| 33 | HEXAGON SOCKET CAP HEAD SCREW 1/2″ X 1-1/2″ | KHT5500-05 | EA |
| 34 | RIGHTING SHAFT | KHT5500-71 | EA |
| 35 | ALIGNING BALL SHAFT 1205 | KHT5500-73 | EA |
| 36 | ALIGNMENT IDLER WHEEL | KHT5500-75 | EA |
| 37 | PRESSURE GAUGE Y-100ZT(0-3600 PSI) | KHT5500-205 | EA |
| 38 | HYDRAULIC CHECK VALVE | KHT5500-224 | EA |
| 39 | TORQUE GAUGE YN100ZT (0-25000 FT.LB) | KHT5500-842 | EA |
| 40 | 6K-625 ORBIT HYDRAULIC MOTOR (TUBULAR CONNECTION) | KHT5500-87 | EA |
| 41 | ALIGNING BALL SHAFT 1205 | KHT5500-73 | EA |
| 42 | DOOR SPINDLE | KHT5500-161 | EA |
| 43 | ALIGNMENT IDLER WHEEL | KHT5500-75 | EA |
| 44 | SPRING | KHT5500-175 | EA |
| 45 | SPRING GUIDE ROD | KHT5500-176 | EA |
| 46 | DECLUTCH SHIFT (UPPER) | KHT5500-183 | EA |
| 47 | CHECK NUT 5/8″ | KHT5500-150 | EA |
| 48 | POSITIONING SPRING | KHT5500-147 | EA |
| 49 | PISTON ROD | KHT5500-655 | EA |
| 50 | O-RING 41.2 X 3.55 | KHT5500-660 | EA |
| 51 | O-RING 28 X 2.65 | KHT5500-661 | EA |
| 52 | Y O-RING Y 63 X 53 X 6.3 | KHT5500-662 | EA |
| 53 | PISTON | KHT5500-663 | EA |
| 54 | SUPPORT RING SD 0630C-II A | KHT5500-664 | EA |
| 55 | O-RING 69 X 3.55 | KHT5500-667 | EA |
| 56 | OIL CYLINDER | KHT5500-668 | EA |
| 57 | JAW PLATE BOLT | KHT5500-18 | EA |
| 58 | OIL CUP M6 X 1 | KHT5500-20 | EA |
| 59 | ALIGNMENT ROLLER | KHT5500-25 | EA |
| 60 | FRONT JAW PLATE 1 (5-1/2″) | KHT5500-43 | EA |
| 61 | FRONT JAW PLATE 3 (4-1/2″) | KHT5500-45 | EA |
| 62 | FRONT JAW PLATE 4 (3-1/2″) | KHT5500-46 | EA |
| 63 | ROLLER | KHT5500-49 | EA |
| 64 | HEXAGON SOCKET HEAD CAP SCREW 1/2″ X 1″ | KHT5500-50 | EA |
| 65 | ROLLER SHAFT | KHT5500-51 | EA |
| 66 | PIN | KHT5500-60 | EA |
| 67 | SPRING POCKET | KHT5500-380 | EA |
| 68 | SPRING | KHT5500-381 | EA |
| 69 | LEVELING SCREW | KHT5500-382 | EA |
| 70 | 6K-625 ORBIT HYDRAULIC MOTOR (TUBULAR CONNECTION) | KHT5500-87 | EA |
| 71 | MULTI-WAY VALVE ASSEMBLY (QUINTUPLE VALVE) | KHT5500-212 | EA |
| 72 | HEXAGON NUT 1/4″ – 28UNC | KHT5500-916 | EA |
| 73 | PUSH AND PULL SHAFT | KHT5500-921 | EA |
| 74 | DECLUTCH SHIFT SHAFT (UPPER) | KHT5500-182 | EA |
| 75 | SCREW BAR | KHT5500-265 | EA |
| 76 | PIN SHAFT | KHT5500-267 | EA |
| 77 | SUSPENSION ROD | KHT5500-268 | EA |
| 78 | PIN SHAFT B25 X 70 | KHT5500-270 | EA |
| 79 | OPERATION ROD | KHT5500-180 | EA |
| 80 | PIN ROLL B8 X 28 | KHT5500-144 | EA |
| 81 | HEXAGON CHECK NUT 1-1/4″ – 7 UNC | KHT5500-104 | EA |
| 82 | LARGE INTERMEDIATE WHEEL | KHT5500-111 | EA |
| 83 | ELASTIC RETAINER RING FOR HOLE 90 | KHT5500-107 | EA |
| 84 | CLUTCH GEAR (UPPER) | KHT5500-130 | EA |
| 85 | ROLLING NEEDLE 5 X 29.8 | KHT5500-131 | EA |
| 86 | MAIN SHAFT | KHT5500-132 | EA |
| 87 | SINGLE ROW NEEDLE ROLLER BEARING WITHOUT INNER RING NK50/35 | KHT5500-134 | EA |
| 88 | SMALL CLUTCH GEAR | KHT5500-135 | EA |
| 89 | SUSPENDED HEAD | KHT5500-378B | EA |
| 90 | PISTON ROD | KHT5500-366B | EA |
| 91 | BUCKET END JOINT | KHT5500-355B | EA |
| 92 | CHECK NUT 15/16″ – 12UN | KHT5500-67 | EA |
| 93 | HEXAGON SOCKET CAP HEAD SCREW 3/8″ X 1″ | KHT5500-69 | EA |
| 94 | HEXAGON BOLT 3/8″ X 1-1/2″ | KHT5500-76 | EA |
| 95 | CHECK NUT 15/16″ – 12UN | KHT5500-67 | EA |
| 96 | CHECK NUT 3/4″ – 16UNF | KHT5500-170 | EA |
| 97 | ECCENTRIC SHAFT | KHT5500-177 | EA |
| 98 | ROD ADAPTOR | KHT5500-652 | EA |
| 99 | PIN SHAFT (1) | KHT5500-654 | EA |
| 100 | PIN SHAFT (2) | KHT5500-669 | EA |
| 101 | HEXAGON NUT 9/16″ – 12UNC | KHT5500-21 | EA |
| 102 | SPRING WASHER 9/16″ | KHT5500-22 | EA |
5.On-Site Field Failure Repair Cases
Case 1: Gear Transmission Failure (Land Drilling Rig)
Issue: KHT5500 power tong lost torque output and produced abnormal noise during tubular breakout. Root cause: Worn large gear (KHT5500-117) and damaged cylindrical roller bearing (KHT5500-115) due to insufficient lubrication. Repair: Replaced faulty gear and bearing, flushed the gearbox, and applied high-temperature grease. Outcome: Restored full torque capacity, eliminated noise, and resumed normal operations with no recurring issues for 3 months.
Case 2: Hydraulic Seal Leak (Offshore Well Workover)
Issue: Persistent hydraulic fluid leak from the cylinder assembly, causing pressure loss and slow tong operation. Root cause: Degraded Y-ring seal (KHT5500-361B) and worn piston rod (KHT5500-364B). Repair: Replaced damaged seal and piston rod, inspected all adjacent O-rings, and pressure-tested the hydraulic system. Outcome: Eliminated fluid leaks, restored hydraulic pressure, and maintained consistent tong speed for workover operations.
Case 3: Jaw Assembly Malfunction (Well Completion Project)
Issue: KHT5500 power tong failed to grip 4-1/2” tubulars securely, leading to slippage during makeup. Root cause: Worn front jaw plate (KHT5500-45) and broken alignment roller (KHT5500-25). Repair: Swapped out damaged jaw plate and rollers, adjusted jaw alignment, and tested grip pressure. Outcome: Regained secure tubular clamping, prevented slippage, and met API torque accuracy standards for completion operations.
6. Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with the KHT5500 power tong? | Yes, all parts in this catalog are designed specifically for the KHT5500 model, with exact OEM fitment; they are not interchangeable with other power tong models without modification. |
| What materials are used for high-wear components like gears and bearings? | Gears and shafts use heat-treated alloy steel for maximum strength and wear resistance; bearings are industrial-grade angular contact and roller bearings; seals are oil-resistant nitrile rubber for hydraulic compatibility. |
| How do I identify the correct replacement part for my KHT5500 repair? | Match the KHT5500-series part number from this list to the faulty component’s part number, cross-reference the item description, and confirm quantity to ensure exact fitment for your repair. |
7. Procurement Guidance & Call to Action
This KHT5500 power tong parts list serves as both a formal procurement standard and a technical troubleshooting reference, ensuring you source only high-quality, API-compliant components that resolve operational issues and extend equipment life. Investing in these precision-engineered replacement parts minimizes rig downtime, lowers long-term maintenance expenses, and upholds job site safety by eliminating the risks of faulty, low-quality components.
For all KHT5500 power tong part inquiries, order placement, and technical support, submit your detailed requirements using the listed KHT5500 part numbers and item descriptions. Our team provides specialized technical assistance to verify part fitment, material specifications, and application suitability, ensuring you receive the exact components needed to keep your KHT5500 power tong operating at peak efficiency. Secure your critical spare parts inventory today to mitigate field repair delays and maintain uninterrupted drilling and well servicing operations.