Twin Cummins QSM11 Engine Startup – L&H Sportfishing Video

March 25, 2025

Twin Cummins QSM11 Engine Startup | L&H Sportfishing

L&H Sportfishing is a fishing charter with Twin Cummins QSM11 engines.
L&H Sportfishing is a fishing charter with Twin Cummins QSM11 engines.

In this video, we join Captain Jimmy David of L&H Sportfishing for an inside look at the engine room of his sportfishing vessel, powered by twin Cummins QSM11 engines. Known for their smooth power delivery, fuel efficiency, and reliability in marine environments, the QSM11s are a favorite among charter captains and commercial operators—and this video shows you exactly why.

Captain Jimmy’s Engine Room Tour

Captain Jimmy in the engine room of the L&H
Captain Jimmy in the engine room of the L&H

Captain Jimmy walks us through his beautifully maintained engine room, giving viewers a close-up look at the QSM11s that power one of the most respected sportfishing operations in South Florida. These inline six-cylinder engines are known for producing clean power with low vibration, making them ideal for vessels that need dependable performance day in and day out.

Why This Video Matters

Whether you’re a Cummins engine owner, marine mechanic, or diesel enthusiast, this video offers a glimpse at how a real-world charter boat captain maintains and operates his engines. You’ll see and hear the engines come to life in a startup sequence that highlights the quiet power of this proven platform.

What You’ll See in This Video:

  • A walkthrough of a marine engine room featuring twin Cummins QSM11s

  • A cold start of both engines, complete with their signature smooth idle

  • Captain Jimmy’s insights on performance and reliability

  • The real-world sound and setup of a high-performance sportfishing boat

This is a must-watch for anyone operating Cummins-powered vessels, or those simply looking for inspiration for their own repower or engine room layout.

Cummins QSM11 Parts Catalog

Diesel Pro Power carries a comprehensive selection of Cummins QSM11 engine parts, built to meet OEM standards and optimized for marine and industrial environments. All parts are in stock and ship worldwide within 24 hours.

Overhaul Kits for Cummins QSM11

Our complete engine overhaul kits are engineered to restore your QSM11 engine to peak operating condition. These kits are ideal for scheduled rebuilds, failure recoveries, or power restorations. Each kit includes premium components designed for durability in high-load conditions.

Available options include:

  • Complete engine rebuild kits, with matched pistons, rings, liners, bearings, and all critical seals and gaskets

  • Top-end kits for cylinder head and valve-related restoration

  • Bottom-end kits for rotating assembly and block-level repair

  • Piston kits (matched by size and configuration: standard and oversized)

  • Ring sets, with high-temperature, oil-control, and compression rings

  • Upper and lower gasket sets, sold individually or bundled with overhaul kits

All kits are available for CELECT and CELECT Plus fuel system configurations. Contact us with your engine serial number to confirm fitment.

Cylinder Heads and Valvetrain Components for Cummins QSM11

Our QSM11 cylinder heads are remanufactured or new, pressure-tested, and built for long service intervals. We offer options for complete head replacement or individual valve train component rebuilds.

Available components include:

  • Complete cylinder heads (with or without valves and springs)

  • Valvetrain rebuild kits, including valve springs, guides, seals, locks, and retainers

  • Rockers, bridges, and push rods, all wear-resistant and matched for OEM spec geometry

  • Injector crossheads, tappets, and valve adjusting screws

  • Cylinder head bolt kits, torque-to-yield rated for safe and secure installation

  • Valve cover gaskets, cover plates, and sealing hardware

  • Head gaskets, with marine- and industrial-grade composite layers

All heads are compatible with CELECT and CELECT Plus electronic systems and meet OEM compression and combustion chamber volume specs.

Raw Water Pump Components for Cummins QSM11

The raw water pump—also called the seawater pump—is a critical part of the QSM11’s marine cooling system, responsible for drawing seawater into the heat exchanger to remove engine heat. This is essential for keeping marine engines within optimal operating temperature and preventing overheating during long-haul or high-load operation.

Diesel Pro Power supplies complete raw water pumps as well as individual service and upgrade parts designed specifically for QSM11 marine applications.

Available components include:

  • Raw water pump assemblies, corrosion-resistant and marine-rated

  • Impeller kits with wear plates, gaskets, and shafts

  • Zinc anodes and fittings, for corrosion prevention in saltwater environments

  • Pump seals and seal repair kits

  • Basket strainers, intake screens, and mounting hardware

  • Inlet and outlet hoses compatible with common marine hose diameters

  • Pump pulley kits and belt alignment guides

Whether replacing a worn pump or rebuilding your existing unit, our raw water pump components are compatible with QSM11 heat exchanger systems used in tugs, trawlers, workboats, and support vessels.

Freshwater Pump Components for Cummins QSM11

The freshwater pump—also known as the coolant circulation pump—pushes coolant throughout the engine block, cylinder head, and turbocharger system. This is a closed-loop system that relies on uninterrupted coolant flow for thermal stability, performance, and emissions control in both marine and industrial QSM11 applications.

Diesel Pro Power offers OEM-spec freshwater pumps and supporting components to maintain coolant circulation under high engine load and long-hour operation.

Available components include:

  • Freshwater pump assemblies, engineered for high-duty cycles

  • Thermostats and thermostat housings to regulate coolant temperature

  • Coolant hoses with reinforced heat-resistant liners

  • Coolant filter bases, bypass valves, and sediment screens

  • Pump seals and housing gaskets for leak-free installation

  • Radiator flush kits and descaling agents for industrial cooling maintenance

  • Flow control valves and bypass regulators

These components are suitable for stationary power generators, drilling platforms, construction machinery, and QSM11-powered equipment requiring continuous thermal control.

Gasket Sets and Seal Kits for Cummins QSM11

Diesel Pro Power supplies gasket kits and seal sets to suit every level of engine repair, from minor leak fixes to full teardowns.

We offer:

  • Full engine gasket sets (upper and lower)

  • Top-end gasket kits including head gaskets, intake and exhaust manifold gaskets, and valve cover gaskets

  • Bottom-end kits, including oil pan gaskets, rear main seals, and front cover seals

  • Turbo, fuel system, and coolant gaskets, tailored for CELECT/CELECT Plus compatibility

  • Individual gaskets: head, intake, exhaust, valve cover, and oil pan

  • O-ring kits and sealing washers, oil-tight and coolant-safe

Each gasket set is clearly labeled for easy identification and designed for marine and industrial installations alike.

Injectors and Fuel System Components For Cummins QSM11

We stock a wide range of QSM11 common rail injectors and fuel system parts, precision-calibrated for long-term performance and emissions compliance. Whether you’re replacing a single injector or overhauling the entire rail system, we provide fast, compatible solutions.

Key components include:

  • High-pressure common rail injectors (tested and calibrated)

  • Injector seal kits, including O-rings, washers, and retainer clips

  • Fuel injection lines and clamps

  • Fuel pressure sensors and regulators

  • Lift pumps and fuel supply pumps

  • Water separators, primary and secondary fuel filters

  • Fuel filter base housings and fittings

  • Shutoff valves and solenoids

All injectors are tested for spray pattern and flow rate consistency.

Turbocharger Components for Cummins QSM11

Restore power and airflow with high-performance turbocharger parts. Diesel Pro Power supplies both direct replacements and performance-ready options for marine or industrial use.

Available parts:

  • Complete turbochargers (OEM-equivalent, high-efficiency options available)

  • Turbo gaskets for inlet/outlet sealing

  • Turbo elbow connectors and mounting flanges

  • Hump hoses in multiple diameters for secure boost path connections

  • Oil feed and drain line kits for proper turbo lubrication

  • High-temp jointing compound for leak-free turbo install

  • Mounting hardware kits (studs, clamps, nuts)

We stock turbos for both fixed and variable geometry QSM11 models. Contact us for boost specs or turbo matching assistance.

Crankshaft Components for Cummins QSM11

Maintain internal balance and engine strength with premium rotating assembly parts:

  • New or remanufactured crankshafts

  • Main bearing shell sets (standard and oversized)

  • Connecting rod bearings

  • Crankshaft seals (front and rear)

  • Crankshaft dampers, vibration balancers, and mounting bolts

Exhaust Components for Cummins QSM11

Manage backpressure and heat with replacement exhaust components:

  • Mufflers and noise-dampening accessories

  • Manifold insulation wrap

  • Manifold gaskets and exhaust flange gaskets

  • Muffler caps, stack adapters, and clamps

  • Turbo exhaust elbows and reducers

 

Additional Resources For The Cummins QSM11

 

 

 

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