Diesel Marine Propulsion Engines & Generating Sets
+44 (0)1452 723 492 | sales@betamarine.co.uk
+44 (0)1452 723 492 | spares@betamarine.co.uk

Project Description

Beta 38 Greenline

Technical Specifications

Power: 35 hp @ 2,800 rpm
Aspiration: Natural
Cylinders: 4
Displacement: 1498 cc
Weight: 165 kg
Propeller Guide: 17” x 10”

A general guidance for propeller size in inches, based upon 3 blade RH rotation and reduction ratio of 2:1. *For accurate individual advice please provide us with your vessels current full specifications.

Installation Recommendation

Standard Specifications

  • RCD 2 (Recreational Craft Directive 2013/53/EU) exhaust emission compliant.
  • EPA (U.S Environmental Protection Agency) Tier 3 – 40 CFR 1042 exhaust emission compliant.
  • Mechanically governed comes with:
    • Keel cooled header tank and water cooled exhaust manifold.
    • Fresh water pump, male dry exhaust outlet & loose fuel/water separator.
    • Mechanical fuel lift pump, fuel and oil filtration.
    • Flywheel housing and drive plate with heavy inertia ring for super smooth running at low rpm.
    • Special quiet air intake filter.
  • 40 Amp, 12 Volt battery charging alternator.
  • Complete with ‘AB’ control panel with tachometer with running hour recorder, keystart switch, push button stop, green light for ‘power on’, red warning lights and audible alarm for: low oil pressure, high water temperature, domestic and engine alternator ‘no charge; 3m interconnection cable with multi-pin plug connector.
  • Heavy duty engine feet and flexible mountings.
  • ‘Morse’ type end fittings for engine speed and gearbox control.
  • Engine test certificate and operators manual.
  • 5 year ‘self-service’ engine warranty, recreational use only!
  • Beta green paint.

Gearbox Options & Technical Drawings

Beta Marine offer the following standard gearbox options and reduction ratios. Gearboxes have been selected to match the torque loading of each engine and will be correct for the majority of Narrowboats, Wide Beams or Dutch Barges. Find out more…

Bobtail – No Gearbox
Bobtail Engine with Drive Plate & Housing for Mechanical Gearbox Optional
Bobtail Engine with Drive Plate, Housing & Oil Cooler for Hydraulic Gearbox Optional
Hydraulic Drive
Full Hydraulic Drive in Lieu of Gearbox Optional
Technodrive / Twin Disc
TMC60 – Mechanical Optional
TM345 – Hydraulic Optional
PRM Marine
PRM125 – Mechanical Standard
PRM150 – Hydraulic Optional
PRM280 – Hydraulic Optional

Control Panel Options

Beta Marine offer a range of control panels to cater for various requirements. Click on any of the thumbnail images to view a larger more detailed image of the control panel. Find out more…


AB Panel

beta marine contol panel c deluxe

C Deluxe Panel

Flybridge Control

Electrical Options

We offer a selection of different options to suit most requirements for either heat exchanger cooling or keel cooling. If you require an alternative solution with specific alternators we can normally design, manufacture and fit suitable alternator supports and pulley drives to suit your needs. Find out more…

Note: Minimum recommended battery: Not included.

12v 70Ah 450CCA

12 Volt Alternators
40 Amp, 12 Volt Alternator Standard
100 Amp, 12 Volt Secondary Domestic Alternator Standard
24 Volt Alternators
80 Amp, 24 Volt Secondary Domestic Alternator in Lieu of Standard (Polyvee Drive) Optional
Travel Power
3.5 kVA Travel Power – 230 Volt, Single Phase 50Hz Optional

NB: If the 3.5kVA travel power option is taken, the two original specification battery charging alternators are replaced by a single 65 Amp alternator.


Special Feet Service

Beta Marine engines have been fitted into tens of thousands of vessels around the world using our standard engine feet. However engine bearers can vary immensely so when a problem arises, our solution is to offer our unique service of designing and manufacturing ‘Special Engine Feet’ to suit your individual engine bearers.

Having designed, manufactured & supplied thousands of bespoke ‘Special Feet’ when required, the additional cost of this option is heavily repaid when your new engine just drops onto your existing engine bearers and lines up with your propeller shaft reducing installation complexity, time and labour. Find out more…

Super Silent Options

Although our engines are “quiet” by comparison with other diesels, for customers who demand especially quiet cruising Beta Marine have developed a highly insulated acoustic enclosure option for an appropriate range of keel cooled engines. Find out more…

PRM Marine
PRM150 – Hydraulic Standard
PRM280 – Hydraulic Optional


Beta Marine inland waterway engines are complemented by a complete range of installation accessories. Find out more…

Literature & Manuals

Beta 30 – Beta 115T K/C
Sales Brochure

Beta 38 K/C
Engine Data Sheet

Beta 14 – Beta 115T K/C
Operators Maintenance Manual

Beta 30 & Beta 38
Illustrated Parts List

TMC60 Gearbox
Operators Maintenance Manual

TM345 & TM345A Gearbox
Operators Maintenance Manual

PRM90 Gearbox
Operators Maintenance Manual

PRM125 Gearbox
Operators Maintenance Manual

PRM150 Gearbox
Operators Maintenance Manual

PRM280 Gearbox
Operators Maintenance Manual

Dealer Locator

Beta Marine approved mobile installation / service engineers and spare part stockists maybe found by clicking or tapping on the canal filter box and selecting your canal network within the interactive map below. If your location has no convenient nearby mobile installation / service engineer please contact the Beta Marine Help Desk.

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