Fuel Injection Pumps - Main Engine and Propulsion

Fuel injection pumps meter and pressurize fuel for delivery to marine main-engine injectors at the correct timing and quantity. Designs include cam-driven jerk pumps, unit pumps and high-pressure supply pumps for common-rail propulsion engines.

ProShipWorks provides end-to-end support to source and supply Fuel Injection Pumps for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

Last updated: October 11, 2026

Product Information

Product Name	Fuel Injection Pumps
Product Category	Main Engine and Propulsion
Product Reference	19
Brands / Manufacturers	MAN Energy Solutions, WinGD, Wärtsilä
Unit of Measure	Piece

Key Features

Key Feature
1. High-pressure fuel delivery
2. Precisely controlled injection quantity and timing
3. Hardened, precision-matched plunger and barrel
4. Compatible with engine-specific fuel viscosity and temperature requirements
5. Available in conventional mechanical and electronically controlled configurations

Applications of Fuel Injection Pumps

Application
1. Low-speed two-stroke marine main propulsion engines
2. Medium-speed four-stroke propulsion engines
3. Common-rail and conventional marine diesel fuel systems

Models & Manufacturers

Model	Manufacturer
MAN B&W MC/MC-C engine-specific fuel injection pump	MAN Energy Solutions
Sulzer RTA engine-specific fuel injection pump	WinGD
Wärtsilä 46 engine-specific fuel injection pump	Wärtsilä

Technical Specifications

Model	Specification	Value	Unit
MAN B&W MC/MC-C engine-specific fuel injection pump	Pump type	Cam-actuated reciprocating plunger pump	—
MAN B&W MC/MC-C engine-specific fuel injection pump	Configuration	Cylinder-specific, engine bore and Mark dependent	—
Sulzer RTA engine-specific fuel injection pump	Pump type	Cam-driven high-pressure fuel pump	—
Sulzer RTA engine-specific fuel injection pump	Fuel compatibility	Marine distillate or residual fuel as permitted by the engine specification	—
Wärtsilä 46 engine-specific fuel injection pump	Engine cycle	Four-stroke	—
Wärtsilä 46 engine-specific fuel injection pump	Selection basis	Engine type, serial number and fuel-system configuration	—

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification	Injection pumps are normally supplied to the engine manufacturer's drawings and quality requirements. Applicable engine and fuel-system requirements may include ISO 3046 and relevant SOLAS fire-safety provisions; exact compliance depends on the complete engine installation.
Class Approval	Normally accepted as part of a class-approved or type-approved engine by societies such as DNV, ABS, Lloyd's Register, Bureau Veritas and ClassNK. Replacement parts may require OEM traceability, material documentation or class survey depending on vessel rules.

Installation, Maintenance & Safety Information

Installation Notes	Confirm engine model, bore, build number, pump index and part number. Maintain absolute cleanliness, renew specified seals, align the drive correctly, set timing and fuel index to OEM data, and bleed the system before operation.
Maintenance Tips	Monitor leakage, delivery balance, exhaust-temperature spread and injection performance. Inspect the plunger, barrel, delivery valve, seals, roller and guide at OEM intervals. Use filtered fuel and preserve matched precision components as a set.
Safety Notes	Isolate starting systems, shut fuel supplies and relieve pressure before work. High-pressure fuel can penetrate skin and hot fuel may cause burns or fire. Never check leaks by hand; use suitable detection methods, guards and personal protective equipment.