how we serve at Longhorn

We provide comprehensive diagnostics, repair, and preventive maintenance for marine diesel engines in commercial and recreational applications. Our approach prioritizes accuracy and proper procedure to eliminate repeat failures and protect long-term reliability. From routine service intervals to complex mechanical issues, we focus on first-time execution

Reliable onboard power is critical for vessel operations. We service marine generators, alternators, and supporting systems to ensure stable electrical output and dependable performance under load. Preventive inspection and structured maintenance reduce the risk of unexpected shutdowns

Auxiliary pumps are critical to fuel delivery, cooling flow, and lubrication. We service raw water pumps, circulation pumps, fuel transfer pumps, and lube oil pumps to ensure proper flow and pressure throughout vessel systems. Early-stage leak detection and seal inspection help prevent secondary damage.

Overheating is one of the leading causes of catastrophic engine damage. We inspect, clean, pressure-test, and service heat exchangers, aftercoolers, raw water systems, and circulation components to maintain proper operating temperatures. Cooling system integrity is central to long-term engine life.

Unplanned downtime is often avoidable with disciplined service scheduling. We offer structured preventive maintenance programs tailored to engine hours, vessel type, and operational demand. Our goal is to detect small issues early — before they become costly failures.

We provide inspection, diagnostics, and service support for marine jet propulsion systems to maintain performance and reliability. Our work focuses on system integrity, alignment verification, intake condition assessment, and drivetrain-related components that affect overall thrust and efficiency. Proper inspection and preventive attention help reduce vibration, power loss, and premature component wear.

We provide detailed engine and machinery condition assessments for buyers, owners, and marine professionals. Our surveys evaluate performance, system integrity, and maintenance history to identify potential risks before purchase or major investment decisions. Clear documentation supports informed decision-making.

We understand that boat problems can happen at any time. That's why we offer emergency repair services to get you back on the water as quickly as possible.

When issues arise, rapid and accurate diagnostics matter. We provide onboard troubleshooting and technical support for vessels operating in the Sabine–Neches Waterway and Gulf Coast corridor. Our disciplined diagnostic approach minimizes downtime and unnecessary part replacement.