Engine & Compressor Components
Reliable Solutions to Keep Your Equipment Running
Natural gas compression packages run hard and run continuously. The engine and compressor components that keep them online — from the compressor frame itself to the engine pistons, cams, cranks, and turbochargers that drive it — are the core of any operator’s maintenance and procurement strategy. RES Energy Solutions stocks and sources components across the natural gas compression drivetrain, with new, remanufactured, and in-house service capability on select components.
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Gas Compressors — Reciprocating & Screw
Cooper Machinery Services is one of the most recognized names in natural gas compression and home to legacy brands including Ajax, Superior, and Cooper-Bessemer. RES Energy Solutions sources compressor components and frames for operators running these units across gathering, transmission, and processing applications.
- Reciprocating gas compressor frames and components
- Legacy platform parts
- Compressor cylinders, valve covers, and packing cases
- Piston rods, crossheads, and rod packing components
Gemini/Arrow compressor components provide operators with an alternative sourcing path for natural gas compression hardware — particularly useful for managing cost and lead time on high-demand wear components.
- Reciprocating compressor components for natural gas applications
- Gemini H Series and M Series Frames, and Arrow VRC and VRS series Frames
Cams & Cranks — New & Remanufactured
Camshafts and crankshafts are among the highest-wear, highest-cost components on a natural gas reciprocating engine. RES Energy Solutions offers both new and remanufactured options across a broad range of engine platforms, giving operators a lower-cost path back into service without sacrificing OEM-spec tolerances.
Gemini
- Remanufactured crank components for gas engines
PAI
- New cam and crank components for gas engines
- Broad engine family coverage including Caterpillar and Cummins platforms
- All products include a two-year warranty
- No core needed
AFA Industries
- New cam and crank components for gas engines
- Broad engine family coverage including Caterpillar and Cummins platforms
- All products include a two-year warranty
- No core needed
Arrow Engine
- New cam and crank components for gas engines
- Arrow Engine products carry a 12-month warranty from the date of purchase.
- No core needed
Power Parts
RES Energy Solutions partners with the industry’s premier aftermarket engine parts manufacturers, covering everything critical to keeping your engine running. Backed by industry-leading customer service and a dedicated outside sales team, we help you keep your equipment’s downtime to a minimum. Just provide us with your engine serial number — our inside technical sales team or outside sales representatives will get your needs taken care of in no time.
AFA Industries
- Cylinder liners and sleeves to OEM specification
wrist pins, bushings, bearings and connecting rod hardware - Pistons, camshafts, crankshafts, lifters gaskets and gasket kits, oil coolers, water pumps, oil pumps, connecting rods, various sensors, and accessory items.
- Broad coverage across Caterpillar and Cummins engine platforms
- Caterpillar engines – 3300 series and 3400 series
- Cummins engines – 5.9L, 8.3L, 855, and KTA19 series
- 2-year warranty
- All parts are new with no core requirements
Arrow Engine (OEM Master Distributor)
- Cylinder components engineered for demanding natural gas compression duty
- Pistons, camshafts, crankshafts, lifters, gaskets, gasket kits oil coolers, water pumps, oil pumps, connecting rods, various sensors and some accessory items.
- Wrist pins, bushings, bearings and connecting rod hardware
- A Series Engines (A-32, A-42 (VR260), A-54 (VR330), A-62 (VR380), A-90 and A-160 platforms.)
- C Series Engines (C-46, C-66, C-96, C-101 and C-255 platforms.)
- 1-year warranty
- OEM brand new parts with no core requirements
KMP
- Piston, ring, and liner components for natural gas engines
- Broad coverage across Caterpillar and Cummins engine platforms
- Wrist pins, bushings, bearings and connecting rod hardware
- Pistons, camshafts, crankshafts, lifters, gaskets, gasket kits, oil coolers, water pumps, oil pumps, connecting rods, various sensors, and some accessory items.
- Caterpillar engines – 3300 series and 3400 series
PAI
- Piston, ring, and liner components for natural gas engines
- Broad coverage across Caterpillar and Cummins engine platforms
- Wrist pins, bushings, bearings and connecting rod hardware
- Pistons, camshafts, crankshafts, lifters, gaskets, gasket kits, oil coolers, water pumps, oil pumps, connecting rods, various sensors and some accessory items.
- Caterpillar engines – 3300 series and 3400 series
- Cummins engines – 5.9L, 8.3L, 855, and KTA19 series
- 2-year warranty
- All parts are brand new with no core requirements
Engineering note: RES Energy Solutions also services cams, cranks, and power cylinder components in-house. Ask about bundling parts supply with machine service for overhaul projects.
Turbochargers
Majestic Turbo
Turbocharger performance directly affects fuel efficiency and emissions compliance on natural gas compression engines. Majestic Turbo specializes in remanufactured and new turbochargers for natural gas, diesel, and dual-fuel engines, with every unit validated on an in-house hot gas test stand before shipment.
- Remanufactured and new turbochargers for natural gas compression engines
- Hot gas test stand validation on every remanufactured unit
- Rebuild kits and cartridge exchange options
- Coverage for Caterpillar, Waukesha, Cummins and other compression engine platforms
- Turbocharger cores accepted for remanufacture
Engineering note: Turbocharger sizing is engine-specific. Provide engine make, model, turbo OEM part number, and whether the application is natural gas, dual-fuel, or other when inquiring.
Couplings
Rexnord
Rexnord couplings connect the driver (engine or motor) to the compressor frame, absorbing misalignment and torsional load in continuous-duty compression applications. RES Energy Solutions supplies Rexnord gear and elastomeric couplings sized for natural gas compression packages.
- Gear couplings for high-torque compressor drivetrains
- Elastomeric couplings for vibration damping and misalignment tolerance
- Coupling guards, hubs, and associated hardware
- Replacement elements and maintenance components for installed Rexnord couplings
Engineering note: Coupling selection depends on driver torque, speed, shaft size, and misalignment tolerance. Provide compressor frame and engine specifications for fit confirmation.
Notes
- Provide engine make, model, and serial number for cam, crank, piston, and turbo sourcing
- Core exchange available on select remanufactured components — ask about programs
- RES Energy Solutions provides in-house remanufacturing on cams and cranks
- Turbocharger units are hot-gas tested before shipment — documentation available
- New and remanufactured options available across most component categories
- Field route delivery means RES Energy Solutions can bring parts to your location
- Bundle compressor, engine, and coupling components in a single order
- Send your BOM or part list for a same-day quote
Frequently Asked Questions
Yes. Legacy Cooper platform components — including Ajax and Superior — are a core part of what RES Energy Solutions sources. These are among the most common engines in the natural gas gathering and transmission market, and we maintain availability on high-demand wear components.
Remanufactured components are disassembled, inspected, cleaned, and machined to OEM dimensional specifications — not just cleaned and repainted. RES Energy Solutions’ in-house machining capability means we control the process and quality and can certify the output to OEM tolerances.
Yes. Majestic Turbo offers a core exchange program on select models — you send your core, we ship a remanufactured unit. Contact us with your turbo part number to confirm exchange availability and pricing.