Cummins QSL 9 500HP Inboard Diesel Engine
Original price was: $42,088.00.$39,983.60Current price is: $39,983.60.
- Description
Description
Cummins QSL9 Inboard Diesel Engine
8.9L Turbocharged Marine Propulsion with Electronic Fuel Control
The Cummins QSL9 inboard diesel engine brings together an 8.9-litre inline six-cylinder layout, turbocharging, aftercooling and high-pressure common rail injection. Its marine propulsion range includes different power and duty configurations, making the documented engine rating central to choosing the right package. A4
Planning a marine repower or replacement engine purchase? Enquire with MSS Motorsports UG for a Cummins QSL9 quotation matched to your vessel and intended use. Include your existing engine details and propulsion requirements to establish the specification, equipment scope and delivered cost.
Technical Specifications
| Specification | QSL9 Platform Details |
|---|---|
| Manufacturer | Cummins |
| Engine model | QSL9 |
| Engine type | Inline six-cylinder, four-stroke diesel |
| Displacement | 8.9 litres |
| Bore × stroke | 114 × 145 mm |
| Fuel injection | Electronically controlled high-pressure common rail |
| Aspiration | Turbocharged and aftercooled |
| Engine management | Cummins Quantum electronic control system |
| Cooling | Heat-exchanger or keel-cooled configurations, depending on rating |
| Output and rated speed | Confirm from the individual engine’s marine rating sheet |
| Application | Inboard marine propulsion |
Features That Support Marine Operation
- Common rail fuel injection: Electronic injection control, with Cummins identifying reduced noise and vibration and faster load acceptance as system benefits.
- Quantum engine monitoring: Tracks parameters including speed, engine load, fuel consumption and duty cycle, with diagnostic functions.
- Marine cooling arrangements: Configuration options allow cooling requirements to be assessed against the vessel’s installation.
- Instrumentation choices: Optional Cummins C Command panels provide display options; confirm the panel, harnesses and controls included in your quotation.
Consult the official Cummins QSL9 marine specifications for manufacturer information. Electrical configuration, accessories and certification must be checked against the engine being offered. Cummins Inc.
Choose the Correct Output and Duty Rating
A horsepower figure alone does not establish suitability for your boat. Rated speed, operating load and duty classification also need to match the application.
For reference, Cummins’ 2025 Marine Products Guide lists QSL9 configurations including 213 kW / 290 MHP at 1,800 rpm for Continuous duty and 302 kW / 410 MHP at 2,100 rpm for Medium Continuous duty. These examples describe published configurations; they do not establish the rating of an unidentified engine. mart.cummins.com
Provide your expected annual operating hours, normal cruising load and time spent at full power. Commercial fishing vessels, passenger boats and workboats require an assessment based on their actual operating pattern.
Comparing a 500HP Cummins Marine Engine?
If your project calls for the 500 metric horsepower class, explore the Cummins QSC8.3 500HP marine diesel engine.
Cummins publishes a QSC8.3 recreational High Output rating of 368 kW / 500 MHP / 493 BHP at 2,600 rpm. MHP is metric horsepower; BHP is mechanical brake horsepower. The QSC8.3 is a separate engine family and requires its own installation and duty assessment. Cummins Inc.
Gearbox Matching and Repower Planning
Before selecting a marine gearbox or reusing your existing transmission, have your installer review the input power and torque capacity, approved duty, reduction ratio, coupling and mounting arrangement.
A useful repower assessment also covers:
- Engine-room dimensions and access for servicing.
- Shaft alignment and propeller loading.
- Cooling capacity, seawater connections and exhaust routing.
- Electrical supply, helm controls and instrument requirements.
Send the gearbox model and reduction ratio, together with photographs of the current installation, to help define the proposed package.
Compare the Complete Purchase Package
Request a written quotation that identifies the engine serial number, documented output, condition, any recorded operating hours and available inspection or test records.
Establish whether the price includes the gearbox, mounts, instrument panel, wiring harness, controls and installation accessories. Ask for the applicable warranty terms, dispatch location, estimated lead time, freight charges and delivery terms.
Clear package boundaries make it easier to compare proposals and budget for installation.
Frequently Asked Questions
Is the Cummins QSL9 confirmed as a 500HP marine engine?
The manufacturer marine rating documents reviewed do not verify that configuration. A 500HP offer should be supported by a Cummins marine rating sheet tied to the engine identification. A4
Can the QSL9 be used for commercial marine propulsion?
Cummins publishes commercial QSL9 configurations with different duty classifications. Suitability depends on the specific rating and vessel operating profile. Cummins Inc.
Does the quotation automatically include a gearbox and manufacturer warranty?
Request written confirmation. Included equipment and warranty eligibility depend on the individual engine and supply arrangement.
Request Your Cummins QSL9 Quotation
Contact MSS Motorsports UG for Cummins QSL9 pricing and configuration details. Provide your vessel type, current engine, required performance, intended duty, annual operating hours, gearbox or drive model and ratio, preferred controls and purchase timing.
Include your billing and delivery addresses for a location-specific quotation. For an existing Cummins installation, attach a clear engine data-plate photograph and serial number.