
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

ReVolt® INTEGRATED ELECTRIC FRACTURING EQUIPMENT
5th Generation Field-Proven Electric Fracturing Systems

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

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

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.

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.

We Can Take Care of You
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.





















