Caterpillar C18-479 Marine Inboard Engine

Precision Power from a Certified Marine Diesel Specialist — Seawave Marine

At Seawave Marine, we’ve spent more than 15 years specifying, installing, and servicing Caterpillar marine propulsion systems across commercial, offshore, and recreational vessels. Our field engineers and certified marine-diesel technicians have hands-on experience commissioning Caterpillar C18-479 Marine Inboard Engines in real-world sea conditions.

This experience allows us to help clients choose the right Caterpillar C18 ACERT marine engine configuration, understand true caterpillar c18 marine engine fuel consumption, and optimize performance for reliability and longevity.

Engine Overview

The Caterpillar C18-479 Marine Inboard Engine represents the perfect balance between fuel efficiency, proven engineering, and marine-grade durability. It’s part of Caterpillar’s renowned C-Series — a lineup trusted by shipyards worldwide for their rugged reliability and compliance with international standards.

Built on an I-6, 4-stroke-cycle diesel platform with 18.0 L (1,098 cu in) displacement, the C18-479 offers a rated power output of 479 bhp (357 bkW) at 1,800 RPM, ideal for continuous marine duty applications.

The common-rail fuel system, A5E2 V2 ECM electronic governor, and turbocharged-aftercooled design ensure smooth operation and lower fuel consumption under varying loads.

Technical Specifications

Parameter	Specification
Model	Caterpillar C18-479 Marine Inboard Engine
Configuration	In-line 6, 4-stroke diesel
Displacement	18.0 L (1,098 in³)
Bore × Stroke	145 mm × 183 mm (5.7 in × 7.2 in)
Rated Power	479 bhp (357 bkW) @ 1,800 RPM
Aspiration	Turbocharged & Aftercooled
Fuel System	Common-Rail Electronic Control
Emission Compliance	U.S. EPA Tier 3 / IMO II / EU Stage IIIA
Lubrication System Capacity	45–49 L (12–13 gal) – varies by sump
Cooling System Capacity	45 L (12 gal)
Dry Weight	~1,800 kg (≈ 4,000 lb)
Operating Temperature Range	Air up to 50 °C (122 °F), Seawater up to 32 °C (90 °F)

All data verified against official Caterpillar C18 engine specifications.

Why Marine Engineers Choose the Cat C18-479

• Proven in harsh marine environments — field-tested on long-range trawlers, ferries, and workboats.

• Caterpillar-certified components mean full support for caterpillar c18 marine engine parts manual pdf and caterpillar c18 marine engine manual pdf.

• Serviceable worldwide through Caterpillar’s dealer network and Seawave Marine’s authorized partners.

• High power density — while the 479 hp variant is designed for endurance duty, the same engine block supports ratings up to cat c18 marine 1150 hp in ACERT configurations.

• Economical operation — optimized caterpillar c18 marine engine fuel consumption under load, ideal for commercial operators.

Warranty and Support

Every Caterpillar C18-479 engine sold by Seawave Marine is:

• Factory new, sourced through authorized Caterpillar distribution channels.

• Covered by a 12-month limited warranty from date of installation or 2,000 operating hours (whichever comes first).

• Eligible for extended coverage plans on request.

• Supported by our in-house service team — trained in Cat C18 ACERT systems, diagnostics, and maintenance scheduling.

We maintain direct access to Caterpillar’s technical databases to provide up-to-date service bulletins, software calibration updates, and maintenance schedules for the cat c18 acert marine engine.

Real-World Experience from Seawave Marine Technicians

“We’ve installed multiple C18-479 engines on offshore supply vessels and deep-sea trawlers. Their fuel efficiency and stable torque curve make them one of the best propulsion options in their class.”
— Chief Marine Engineer, Seawave Marine Service Division

This kind of first-hand experience reflects why Seawave Marine is a trusted name among shipyards and operators seeking a Caterpillar C18 479 marine engine for sale.

Frequently Asked Questions

Q: Is the Caterpillar C18 a good engine?
A: Absolutely. Its proven reliability in global fleets and compliance with international emissions standards make it a leading choice for marine propulsion.

Q: Is the C18 block the same as a C15?
A: No — the C18 has a larger displacement and higher rated power potential. While both share design lineage, the C18 is built for heavier-duty marine service.

Q: What is the rating of the C18 engine?
A: The C18 series spans 479 hp to over 1,150 hp, depending on configuration. The “479” model is the continuous-duty variant optimized for long-duration operation.

Q: What is the maintenance schedule for a Cat C18 marine engine?
A: Typical service intervals:

• Oil and filter change: every 250 hours

• Fuel filter replacement: every 250–500 hours

• Valve adjustment & aftercooler inspection: annually
  Seawave Marine provides the full Caterpillar-approved maintenance schedule for your operating profile.

Q: Where can I find the manual or parts guide?
A: We provide authorized Caterpillar C18 marine engine manual PDF and parts manual PDF access with every purchase.

Trust Seawave Marine for Expert Guidance

When you purchase from Seawave Marine, you’re not just buying an engine — you’re gaining a partner with deep technical expertise, hands-on installation experience, and direct manufacturer support.

Our team helps customers choose the correct caterpillar c18 479 marine engine specs, plan for integration, and achieve the most efficient propulsion configuration for their vessels.

For caterpillar c18 479 marine engine price, configuration advice, or full installation support, contact Seawave Marine today.