Detailed Product Introduction
This HT-400 pump parts collection is organized into six core subassemblies tailored to the 4.5-inch plunger configuration: plunger packing subassemblies, fluid-end/discharge flange subassemblies, plunger/cylinder head cover subassemblies, suction valve subassemblies, discharge valve subassemblies, and push rod subassemblies. Each component is cross-referenced to original Halliburton part numbers (316-series, 83-series, 70-series), ensuring perfect drop-in fit for the HT-400TM pump model. The catalog includes specialized parts for acid service, standard fracturing service, and high-pressure fluid handling, with hardened seals, urethane valve inserts, and precision-machined metal components to match OEM performance specifications.
Functional Performance & Value Highlights
- Minimize Pump Downtime: OEM-matched subassemblies cut repair and overhaul time by 70%, preventing costly delays in fracturing, cementing, and acidizing operations.
- Superior Sealing & Wear Resistance: Hardened packing sets, urethane valve inserts, and precision O-rings eliminate fluid leakage and resist abrasion from harsh pumping media.
- Dual Service Compatibility: Components designed for both standard pumping and acid/fracturing service, with color-coded valve inserts for quick identification.
- Longer Service Intervals: High-grade materials and precision manufacturing extend time between overhauls, reducing long-term maintenance and replacement costs.
Structural & Engineering Features
- HT-400 Exact Drop-In Fit: All parts machined to Halliburton OEM dimensions, ensuring seamless installation without alignment or modification issues.
- Modular Subassembly Design: Pre-grouped components for quick targeted repairs (valves, packing, push rods) to streamline inventory and field repairs.
- High-Strength Material Construction: Brass valve guides, hardened metal flanges, and chemical-resistant urethane inserts for durability in harsh conditions.
- Precision Sealing Geometry: Custom-sized packing rings, gaskets, and O-rings engineered to maintain pressure integrity under extreme pumping loads.
Applicable Operating Conditions
- These Halliburton HT-400 pump parts are built for demanding high-pressure oilfield pumping environments, including:
- Hydraulic fracturing operations with high-pressure slurry pumping
- Acidizing treatments with corrosive fluid handling
- Onshore and offshore well servicing with continuous HT-400 pump use
- High-cycle pumping with abrasive drilling fluids and proppant slurries
- Remote well sites requiring reliable, long-wearing pump components
Professional Maintenance & Troubleshooting Recommendations
- Plunger Packing Inspection: Check packing sets and lube seals every 500 operating hours; replace worn components with OEM kits to prevent fluid leaks and plunger damage.
- Valve Service Protocol: Inspect suction/discharge valve inserts and springs for wear during every overhaul; use acid-service inserts (yellow) for corrosive fluids and standard inserts (brown) for routine pumping.
- Flange & Fastener Torque Check: Tighten discharge flange studs and tie bolts to OEM torque specifications to maintain pressure integrity and avoid joint failure.
- Push Rod Seal Maintenance: Lubricate push rod seals regularly and replace O-rings and seal housings at the first sign of leaks to protect internal pump components.
- Scheduled Overhaul Intervals: Perform a full subassembly overhaul every 2,000 operating hours to prevent catastrophic pump failure and extend equipment lifespan.
We supply the following spare parts:
| Reng | DESCRIPCIÓN DEL MATERIAL | PART NUMBER | Unid |
| A | Packing Subassembly for Plunger Size 4.5 inch | ||
| 1 | Adapter, Header | 316.23503 | SET |
| 2 | Ring Header | 316.23501 | SET |
| 3 | Packing Set, 4-in.x 5-in, x 1/2-in. Stock, 3 Rings, Hard, Acid Service | 316.23525 | SET |
| 4 | Ring, Backup, Packing, 4-in x 5-in | 316.23393 | SET |
| 5 | Carrier, Seal and Packing, 4-in | 316.23396 | SET |
| 6 | Seal, Lube, Packing, WQ, 4-in x 4-1/2-in. x 9/16-in | 316.23395 | SET |
| 7 | O-Ring, 90D, 5-in. x 4 3/4-in.x 1/8-in | 83.4049 | SET |
| B | Fluid-end/flange discharge section subassembly for Plunger Size 4.5 inch | ||
| 1 | Flange, discharge, HT-400TM, BLANK | 316.22980 | SET |
| 2 | Flange, discharge, HT-400TM, CURVED, Rright Hand | 316.23019 | SET |
| 3 | Flange, discharge, HT-400TM, CURVED, Left Hand | 316.23017 | SET |
| 4 | Seal, Discharge passage,HT-400TM | 316.2547 | SET |
| 5 | Nut, 1-14NF, Internal Wrenching, 1.03 TL | 316.11621 | SET |
| 6 | Stud, HT-400TM Fluid End To Thick Discharge Flange | 316.23013 | SET |
| 7 | Bolt, Tie, 1.375-12 UNF×32.4 in.,Top, Fluid End, HT-400TM, TC | 316.27488 | SET |
| 8 | Nut, Top Tie Bolt, HT-400TM, TC | 316.25501 | SET |
| 9 | Washer, Hardened,2.31 O.D ×1.43I.D.,For Top Tie Boldt | 316.22493 | SET |
| 10 | Spacer, Inner, Discharge Passage Seal,HT-400TM | 316.2545 | SET |
| 11 | Fluid End Section, HT-400TM PUMP,Not Sleeved | 316.23951 | SET |
| 12 | Nut, Elastic, Stop,3/4-in.,16 NF | 70.32760 | SET |
| C | Plunger/cylinder Head Cover Subassembly for Plunger Size 4.5 inch | ||
| 1 | Retainer, Cover HT-400TM | 316.2202 | SET |
| 2 | Cover, Cylinder Head, HT-400TM | 316.2207 | SET |
| 3 | Gasket, 4 Discharge Valve & Cylinder Head Cover | 316.22052 | SET |
| 4 | Ring, Spacer, Discharge Valve & Cylinder Head Cover | 316.22051 | SET |
| 5 | Nose, Plunger, HT-400TM | 316.2331 | SET |
| 6 | Seal, Plunger Nose Assembly, HT-400TM | 316.2330 | SET |
| 7 | Plunger, Hard Surface, L-Spacer, HT-400TM | 316.23085 | SET |
| 8 | Tie Rod, Plunger, HT-400TM | 316.21028 | SET |
| 9 | Adapter, Pushrod, HT-400TM, Two Piece Nose | 316.23089 | SET |
| D | Suction Valve Subassembly for Plunger Size 4.5 inch | ||
| 1 | Retainer, Stop and Spring, HT-400TM, Mach. Cast | 316.23034 | SET |
| 2 | Boot, Suction and Stop, HT-400TM | 316.25233 | SET |
| 3 | Spring, Lock, HT-400 | 316.22252 | SET |
| 4 | Liner, Two Piece Bushing, Valve Guide, HT-400TM, Brass | 316.22005 | SET |
| 5 | Insert,Two Piece Bushing, Valve Guide, Special,HT-400TM | 316.22004 | SET |
| 6 | Spring, Valve, HT-400TM, 36lb/in | 316.2308 | SET |
| 7 | Valve, HT-400, Frac | 316.22048 | SET |
| 8 | Insert, Valve, HT-400TM, Urethane, Acid/Frac Service(Yellow) | 316.22046 | SET |
| 9 | Insert, Valve, HT-400TM, Urethane, Standard Service(Brown) | 316.22049 | SET |
| 10 | Seat Valve, HT-400TM, Tapered | 316.210047 | SET |
| 11 | O-ring, 90 Duro | 83.4041 | SET |
| 12 | Retainer, Guide Bushing, HT400 | 316.23953 | SET |
| E | Discharge Valve Subassembly for Plunger Size 4.5 inch | ||
| 1 | Retainer, Cover, HT-400TM | 316.2202 | SET |
| 2 | Cover, Discharge, Double Guided Valve, HT-400TM | 316.23091 | SET |
| 3 | Gasket, Discharge Valve & Cylinder Head Cover, HT-400TM | 316.22052 | SET |
| 4 | Ring, Spacer, Discharge Valve & Cylinder Head Cover, HT-400TM | 316.22051 | SET |
| 5 | Liner, Two Piece Bushing, Valve Guide, HT-400, Brass | 316.22005 | SET |
| 6 | Insert, Two Piece Bushing, Valve Guide, Special, HT-400 | 316.22004 | SET |
| 7 | Spring, Valve, HT-400TM, 36lb/in | 316.2308 | SET |
| 8 | Valve, HT-400, Frac | 316.22048 | SET |
| 9 | Insert, Valve, HT-400TM, Urethane, Acid/Frac Service(Yellow) | 316.22046 | SET |
| 10 | Insert, Valve, HT-400TM, Urethane, Standard Service(Brown) | 316.22049 | SET |
| 11 | Seat Valve, HT-400TM, Tapered | 316.210047 | SET |
| 12 | O-ring, 90 Duro | 83.4041 | SET |
| 13 | Retainer, Guide Bushing, HT400 | 316.23953 | SET |
| F | Push Rod Subassembly for Plunger Size 4.5 inch | ||
| 1 | Retainer,Push Rod HT-400TM, Two Piece Nose, L-Spacer | 316.21066 | SET |
| 2 | O-Ring, 90 Duro, 1 7/8 × 1 5/8 × 1/8, 568-223 | 83.4020 | SET |
| 2 | Tie Rod, Push Rod, L-Spacer, HT-400TM | 316.25166 | SET |
| 3 | Push Rod, Two Piece, L-Spacer, HT-400TM | 316.21065 | SET |
| 3 | Retainer, Push Rod Seal Housing, L-2 Spacer, HT-400TM | 316.10012 | SET |
| 4 | Housing, Push Rod Seal, Floating, L-2 Spacer, HT-400TM | 316.10013 | SET |
| 4 | O-Ring, 70 Duro, 5 11/16 × 5 1/2 × 3/32, 568-161 | 70.33739 | SET |
| 5 | Seal, Push Rod, L-Spacer, HT-400TM | 316.10014 | SET |
Field Pump Fault Repair Cases
Case 1: HT-400 Plunger Packing Leak
A Halliburton HT-400 pump experienced severe fluid leakage around the 4.5-inch plunger due to a worn packing set and degraded lube seal. Installing the OEM 316.23525 packing set and 316.23395 lube seal eliminated leaks, restoring full pumping pressure and resuming fracturing operations.
Case 2: Suction Valve Failure
The HT-400 pump lost suction pressure during acidizing service, caused by a cracked urethane valve insert and weak valve spring. Replacing the yellow acid-service insert (316.22046) and 36lb/in valve spring (316.2308) fixed suction performance, ensuring consistent fluid flow.
Case 3: Discharge Flange Seal Failure
High-pressure fluid leakage occurred at the HT-400 discharge flange due to a damaged discharge passage seal. Swapping in the OEM 316.2547 seal and inner spacer (316.2545) sealed the flange joint, restoring pressure containment for high-load pumping.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts only compatible with the 4.5-inch plunger Halliburton HT-400 pump? | Yes, all components are custom-sized exclusively for the HT-400TM pump with a 4.5-inch plunger. They are not designed for other plunger sizes or pump models, ensuring perfect OEM fit. |
| Can these valve inserts be used for both acid and standard fracturing service? | Absolutely. Yellow urethane inserts (316.22046) are rated for acid/corrosive service, while brown inserts (316.22049) are for standard fracturing and fluid pumping, matching OEM service specifications. |
| Do these parts meet high-pressure oilfield pumping standards? | Yes, all components are manufactured to Halliburton’s OEM standards for high-pressure operation (up to 15,000 PSI), with hardened materials and precision sealing for rigorous fracturing and well servicing. |
Procurement Guidance
For pumping operations managers, field maintenance technicians, and oilfield procurement teams relying on the Halliburton HT-400 4.5-inch plunger pump, this parts list is the definitive resource to reduce downtime, maintain equipment performance, and source guaranteed OEM-compatible components. Avoid the risks of substandard aftermarket parts, costly pump failures, and delayed well operations — this catalog provides a standardized procurement and technical repair reference for all critical HT-400 pump subassemblies.
Secure these OEM-grade Halliburton HT-400 pump parts to execute fast, reliable field repairs and overhauls, preserve high-pressure pumping efficiency, and extend the service life of your critical pumping equipment. Each component is built to withstand the harshest oilfield conditions, making this the trusted choice for keeping your HT-400 pump operating at peak performance.
