
Your Heavy Haul Hydraulic Parts Source
Summit Hydraulics serves as a trusted source for heavy haul parts and SPMT (Self-Propelled Modular Transporter) trailer products. Our 30+ years of industry experience makes us a leader for durable, high-performance heavy haul screw-to-connect couplers, test couplers, pressure gauges, and custom hydraulic hoses. We offer reliable components for large-scale transportation and tailored solutions for your specific applications. Trust our expertise to ensure your equipment operates efficiently and safely despite the working conditions. We will deliver quality hydraulic parts that keep your heavy haul operations moving smoothly.
Flat Face Screw-to-Connect Quick Couplers
Summit Hydraulics Flat Face Screw-to-Connect Hydraulic Quick Connect Couplers are built for the punishing demands of heavy haul. The flat-face design keeps connections clean, while the screw-to-connect style locks in a leak-free seal even under extreme pressure and vibration. Crafted from magnetic carbon steel with corrosion-resistant zinc-nickel plating, these heavy hauler couplers deliver the durability and reliability needed to keep heavy haul equipment moving without downtime.
Test Couplers
Summit Hydraulics Test Couplers are precision-engineered for demanding hydraulic diagnostics in heavy haul operations, from pressure checks and fluid sampling to system venting. Crafted from rugged steel with zinc-nickel plating, these couplers withstand up to 9,137 PSI working pressure while accurately sealing under full load. The robust metal cap stays secure even in high-vibration applications, ensuring reliable performance when accuracy and uptime are essential.
Pressure Gauges
Summit Hydraulics Liquid-Filled Pressure Gauge delivers clear pressure readings even in the harshest hydraulic environments. Its liquid-filled dial reduces pointer flutter caused by shock and vibration; this design works perfectly for heavy-haul rigs, mobile machinery, and industrial panels. The gauges are available in multiple pressure ranges (0–60 BAR, 0–400 BAR, and 0–600 BAR). Complete with either center-back or lower-back mounting options, you won’t find a better option in the field.