CONVENTIONAL FRAC Service

Conventional Hydraulic Fracturing Equipment Service

Expert Remanufacturing for Frac Fleets

Stewart & Stevenson offers comprehensive frac equipment remanufacturing for conventional hydraulic fracturing fleets. Our certified facility and factory-trained technicians restore fracking equipment performance, extend equipment life, and ensure your fleet operates at peak efficiency.

Frac Pump Overhaul and Rebuilds

We provide complete overhaul and rebuild services for triplex and quintuplex frac pumps ranging from 2,250 to 3,000 HP. Services include fluid end replacements, power end refurbishment, control system upgrades, and emergency field service.

Blender & Hydration Unit Service

We offer maintenance, repair, and system upgrades for blending equipment, including chamber inspection, density control calibration, discharge system upgrades, and preventive maintenance programs.

Data Van & Control Cabin Upgrades

We modernize mobile command centers with AccuFrac® software, enhanced data acquisition, and remote fleet management capabilities that support both conventional and electric fracturing equipment operations.

Why Stewart & Stevenson

OEM Certified technicians | 24/7/365 emergency service | Complete fleet support | Genuine parts inventory | Predictive and preventive maintenance programs

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ReVolt® INTEGRATED ELECTRIC FRACTURING EQUIPMENT

5th Generation Field-Proven Electric Fracturing Systems

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100% Electric Power for the Oilfield

We deliver the industry’s highest power density—6,600 HP—on a single trailer through our integrated electric fracturing equipment platform. Built on decades of frac equipment manufacturing experience, this field-proven system reduces emissions by up to 99% and cuts site footprint in half compared to conventional fracking equipment.

ReVolt® Delivers:

  • Unmatched Power: 6,600 HP dual-pump performance (also available in 5,000 and 3,300 HP single-pump)
  • Efficiency & Reliability: Engineered for continuous 24-hour pump operation at full load
  • Cost & Noise Savings: Eliminates diesel fuel and related maintenance, reduces crew size by 40%, and operates at approximately 85 dB for quieter performance
  • Integrated Design: Pumps, blenders, chemical systems, and advanced AccuFrac® controls are combined on a single trailer without hydraulic systems.

ReVolt® is a fully integrated e-frac solution, combining electric-powered pumps, precision blending, automated chemical systems, centralized power distribution, and advanced fleet controls. This approach delivers unmatched performance, reliability, and simplicity to every fracturing operation.

Oilfield Power Generation Systems

Reliable Custom Power Packages for Remote Basins

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Continuous Natural Gas Generators

High-efficiency natural gas generators available in DOT-compliant trailer and skid-mounted configurations for rapid deployment, mobile operations, and permanent baseload installations supporting oil and gas equipment sites.

  • Power Range: 500-2,500+ kW for scalable power solutions
  • Efficiency: Up to 44.4% electrical efficiency with advanced engine technology
  • Fuel Flexibility: Natural gas, LNG, field gas compatible
  • Uptime: 8,000+ hours/year operational capability
  • Deployment: DOT-compliant trailer-mounted and stationary skid packages
  • Features: Fast start-up | Plug-and-play operation | Remote monitoring and telemetry
  • Applications: Remote microgrids, oilfield operations, electric frac fleets, temporary power, emergency backup, data centers
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Custom Switchgear & Drive Systems

Custom medium-voltage switchgear and VFD systems designed and manufactured in-house for safe power distribution in hazardous oilfield and industrial environments, including electric fracturing equipment applications.

  • Voltage Range: 220 V-15 kV standard (higher voltage/DC available for specialized applications)
  • VFD Power Output: 10 W – 7+ MW for exact control in varied applications
  • Energy Efficiency: 20-60% energy savings by matching motor speed to load demand
  • Certifications: ATEX/IECEx compliant with NEMA 4X/7 enclosures
  • Custom Engineering: Application-specific designs for specialized operational requirements
  • Applications: Drilling rigs, offshore platforms, compressor stations, electric frac fleets, micro-grids

Remanufactured Hydraulic Fracturing
Equipment & Transmissions

Zero-Hour Rebuilds for Oilfield Performance

At Stewart & Stevenson, we understand the demands of the oil and gas industry. That’s why our remanufacturing solutions deliver like-new reliability—without the cost and lead time of new equipment. Through structured frac equipment remanufacturing and transmission remanufacturing processes, we restore your equipment to dependable condition, following OEM-certified procedures and conducting full-load testing to confirm field readiness.

Why Choose Remanufactured Equipment?

  • Faster Turnaround: Get back to work quickly with streamlined rebuild services
  • Sustainable Solutions: Extend fleet life and reduce unnecessary capital expense

Our Capabilities

  • Complete frac equipment remanufacturing for pumps, power ends, and transmissions
  • Precision machining and component upgrades to maximize durability
  • Full-load testing at operational pressures to ensure reliable performance

Technology & Compliance

  • Tier IV upgrades and emissions solutions
  • Dual-fuel (bi-fuel) and hybrid system integration for next-gen performance
  • Safety and EPA standards incorporated into every oil & gas equipment reman project

Industrial Oil and Gas Engines,
Transmissions, & Powerpacks

Purpose-Built Power for Every Oilfield Application

As an authorized distributor of the industry’s most trusted engine and transmission brands, we supply, service, and support Volvo Penta and mtu engine drilling platforms, and Allison Transmissions oil field packages that power your fleet.

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small power

Small Power: Deutz Industrial Engines for Auxiliary Equipment

Complete Powerpacks for Auxiliary & Wellsite Equipment
Compact Deutz engines are integrated into custom powerpacks with mounting frames, cooling systems, and electrical integration to support auxiliary oil and gas equipment applications in demanding field conditions.

Applications: Water transfer pumps | Hydraulic power packs | Air compressors | Wellsite generators

Configurations: Air-cooled and liquid-cooled | 2.9L–4.1L displacement | EPA Tier 2/3/4

medium power

Medium Power: Volvo Penta Engines for Fracturing

Integrated Powerpacks for Fracturing & Drilling
Volvo Penta engines are paired with Allison Transmission’s oilfield series in complete powerpack configurations that are engineered, tested, and validated before delivery.

Engine Platforms: D11 (250-388 HP) | D13 (385-536 HP) | D16 (550-750 HP)

Transmission Pairing: Allison Oil Field Series (4500/4700/4800) for 350-1,200 HP applications

Features: Extended service intervals (500–1,000 hours) | EPA Tier 2/3/4 | 11L–16L displacement

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Large Power: MTU Engines for Drilling and High Pressure

Maximum Power Density Powerpacks for High-Pressure Operations
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engines are integrated with Allison Transmission FracTran® transmissions to form a complete powerpack solution—engineered, assembled, and tested in Houston.

Engine Platforms: Series 1600 (1,006-2,000 HP) | Series 4000 (1,400-2,600 HP)

Frac-Optimized Pairing: mtu 4000 Series (12V & 16V) + FracTran® 2300/2600/3300/3500 | 2,200–2,600 HP

Features: Matched cooling capacity, integrated electrical systems, vibration isolation, and pre-testing.

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Allison Transmission Oil Field and Continuous Power Technology™

These transmissions are purpose-built for drilling, pumping, and hydraulic fracturing, offering dual-mode operation for vehicle propulsion and auxiliary power take-off (PTO).

Oil Field Series: 4500/4700/4800 (350-1,200 HP) for heavy-duty drilling and hoisting.

FracTran® Series: 2300 (2,300 HP – 25,000 hours design life) | 2600 (2,600 HP – 20,000 hours design life) | 3300 (3,300 HP – 15,000 hours design life) | 3500 (3,500 HP)

Key features include uninterrupted power during shifts, 50% longer service life compared to competitors, and proven field reliability.

Oilfield Service Maintenance and Repair

24/7/365 Emergency Field Service Oilfield Technicians and Diagnostics

We provide authorized oilfield service maintenance for Volvo Penta, mtu and Deutz engines, and Allison Transmission oil field units, as well as most other makes in your fleet. And with structured preventive maintenance programs and factory-backed warranty repairs for your fracking equipment and related oil and gas equipment, you can reduce unplanned downtime by 25-30%.

Core Services:

  • Emergency Field Service: Mobile service trucks | Remote diagnostics | On-site repairs for drilling rigs and frac equipment
  • Preventive Maintenance Programs: Scheduled inspections | Fluid analysis | Proactive component replacement
  • Genuine OEM Parts: Largest inventory in the region | Same-day availability | Warranty protection
  • Warranty Repair Services: Factory-authorized warranty work | OEM-certified repairs | Complete documentation for warranty compliance

Servicing the majority of the continental US.

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Genuine OEM Parts in Stock for Texas, Louisiana, and Colorado

Largest inventory of genuine OEM parts for oilfield engines, transmissions, and equipment

Exact Fit and Performance

Warranty Protection

Longer Service Life

Proven Reliability

We Can Take Care of You

170
Technicians
274
Bays
15
Locations
400+
Tickets closed/month

FAQs

What makes Volvo Penta ideal for hydraulic fracturing?

Volvo Penta engines deliver high torque at low RPM, reliable performance in extreme temperatures (-40°F to 120°F), extended service intervals of 500–1,000 hours, and continuous-duty cycle design for demanding fracking equipment operations.

How can I reduce oilfield operating costs?

To reduce oilfield operating costs, we recommend implementing preventive maintenance programs, which can reduce downtime by 76%, and upgrading to fuel-efficient engines, which can cut fuel costs 15–25%. In addition, we suggest using genuine OEM parts and taking advantage of 24/7 field service. By taking steps like these, operators can see measurable OPEX reductions of about 20–32%.

What oil and gas engine brands do you service?

We are an authorized service provider for Volvo Penta engines, mtu engines (all series), Deutz TCD series, and Allison Transmission oil field systems, along with support for most major oil and gas equipment brands.

Do you offer emergency field service oilfield repair?

Yes. We provide 24/7/365 emergency response with mobile service trucks, factory-trained technicians, and extensive parts inventory to support critical oilfield service maintenance needs.

Do you offer generator installation and commissioning?

Yes. Our team installs and commissions turnkey generator systems and provides ongoing service and maintenance.

What areas do you serve?

We support all major Texas oil and gas basins including the Permian, Eagle Ford, DFW, Houston, along with Louisiana (Jefferson/New Orleans, Haynesville) and Colorado (Denver, DJ Basin), Bakken, SCOOP/STACK, and Marcellus/Utica.

Our Services

On-highway vehicle service and repair by Stewart & Stevenson

ON-HIGHWAY

Keeping vehicles moving with reliable engines, transmissions, and expert on-highway service support.

Industrial diesel and gas power generation systems

POWER GENERATION

Delivering dependable power generation equipment and service that performs under pressure and ensures uptime.

Natural gas microgrid power solutions

NATURAL GAS MICROGRIDS

Providing efficient, resilient energy solutions for commercial and remote applications.

Terex and industrial cranes

CRANES

Supporting safe, efficient lifting with reliable power and responsive service.

Construction site and equipment solutions

CONSTRUCTION EQUIPMENT

Maximizing productivity through tough, dependable equipment and full service support.

Power and pump, air compressor rental services

Power Rental

Offering flexible short- and long-term power and Power Rental.