REINTJES Marine Gearbox Spare Parts: Technical Guide, Models & Maintenance
A marine gearbox is one of those machines that often receives little attention until something changes. Delayed engagement, unusual noise, rising oil temperature, vibration or an oil-pressure alarm can quickly turn a gearbox problem into a priority for the engineering team.
REINTJES marine gearboxes are used across a wide range of marine propulsion applications, including yachts, workboats, fishing vessels, tugboats, ferries, dredgers, patrol vessels and other commercial and specialized vessels.
The REINTJES marine range includes heavy-duty reversing reduction gearboxes, lightweight high-speed gearboxes, down-angle and V-drive arrangements, waterjet gearboxes, dual gearbox systems and hybrid propulsion solutions.
For maintenance, repair or overhaul, identifying the correct REINTJES marine gearbox spare parts starts with the gearbox itself. The exact model, serial number, reduction ratio and existing part numbers are essential for accurate parts identification.
Alfa Marine Spare Parts supports customers sourcing REINTJES gearbox spare parts, replacement parts and overhaul parts for marine applications worldwide.
Quick Answer: What Are REINTJES Marine Gearboxes?
REINTJES manufactures marine gearboxes and propulsion solutions for a broad range of vessel types and power requirements.
Major REINTJES marine gearbox families include:
- WAF
- LAF
- WF
- WGF
- WVS
- WLS
- WVSA
- WVSFA
- AF
- SVA
- SVAL
- DLG
- DUG
- RDG / RDGL
- VLJ
- Hybrid-ready gearbox systems
These gearbox families serve very different marine applications. A heavy-duty tug does not place the same demands on its transmission as a high-speed yacht, while a waterjet installation requires a different drivetrain arrangement from a conventional propeller shaft.
That is why the gearbox model, reduction ratio, vessel application and serial number matter when identifying REINTJES marine gearbox parts.
What Does a Marine Gearbox Do?
A marine diesel engine normally operates at a considerably higher speed than the propeller.
The marine gearbox transfers engine power into the propulsion system while reducing engine RPM to the speed required by the propeller or other propulsion equipment.
Depending on the installation, a marine gearbox can:
- Reduce engine RPM to propeller RPM
- Transmit engine torque
- Provide ahead and astern operation
- Engage and disengage propulsion
- Support propeller thrust
- Provide PTO capability
- Provide PTI capability
- Drive auxiliary equipment
- Integrate electric propulsion
- Support hybrid operating modes
This is why marine gearbox selection cannot be based only on engine horsepower.
Engine RPM, transmitted torque, reduction ratio, propeller requirements, vessel duty, shaft arrangement and propulsion configuration all need to work together.
REINTJES WAF Marine Gearboxes
The REINTJES WAF series is one of the major heavy-duty gearbox families within the REINTJES marine range.
The family covers numerous gearbox sizes, including models from approximately WAF 164 through WAF 7760.
WAF gearboxes are particularly associated with demanding commercial vessel applications such as:
- Tugboats
- Fishing vessels
- Ferries
- Inland vessels
- Workboats
- Specialized commercial vessels
Depending on the model and configuration, WAF marine gearboxes can incorporate hydraulic clutch operation, helical gearing, integrated lubrication arrangements and different bearing designs.
For engineers maintaining these gearboxes, the condition of the gears is only one part of the picture. Clutch operation, oil pressure, bearing condition, filtration and cooling also play important roles in gearbox reliability.
Common REINTJES WAF Spare Parts
A REINTJES WAF repair or overhaul may require:
- Gear wheels
- Pinions
- Shafts
- Bearings
- Clutch plates
- Clutch seals
- Shaft seals
- O-rings
- Gaskets
- Oil pumps
- Oil filters
- Control valves
- Lubrication parts
- Sensors
- Fasteners
- Related gearbox service parts
The exact REINTJES WAF spare parts required should always be checked against the installed gearbox.
REINTJES WVS Marine Gearboxes
The REINTJES WVS series addresses a different marine propulsion requirement.
WVS gearboxes are particularly relevant to high-speed vessels, patrol boats and yachts, where transmitting substantial power while controlling drivetrain weight is important.
The WVS family includes multiple gearbox sizes from approximately WVS 234 through WVS 2240.
A notable feature of the WVS design is its weight-optimized aluminium-alloy housing.
Depending on the model, WVS gearbox construction can include:
- Helical gears
- Hydraulic disc clutches
- Roller bearings
- Integrated thrust bearing
- Integrated lubrication system
- Oil filtration
- Gearbox cooling arrangements
These characteristics make the WVS family particularly suitable for high-performance marine propulsion installations.
REINTJES WAF vs WVS: What Is the Difference?
WAF and WVS are both important REINTJES marine gearbox families, but they serve different operating requirements.
REINTJES WAF gearboxes are primarily associated with heavy-duty commercial applications such as tugs, fishing vessels, ferries and workboats.
REINTJES WVS gearboxes are designed particularly for high-performance vessels, including yachts and patrol vessels, where reducing drivetrain weight is more important.
For spare-parts sourcing, never assume that a part from one REINTJES gearbox family will fit another simply because the parts appear similar.
REINTJES WLS Marine Gearboxes
The REINTJES WLS series is another gearbox family used in high-performance marine propulsion.
The WLS 234–2240 range is associated with applications including waterjet and controllable-pitch propeller propulsion arrangements.
Depending on the particular model and configuration, technical features can include:
- Aluminium-alloy gearbox housing
- Helical gearing
- Hydraulic disc clutch
- Roller bearings
- Integrated thrust bearing
- Integrated oil sump
- Operating and lubricating-oil system
- Oil pump
- Oil filter
- Gearbox cooling
For maintenance teams, the lubrication and cooling systems deserve the same attention as the mechanical gearbox parts.
A gearbox with gears and bearings in good condition can still develop serious operating problems if oil pressure, filtration or cooling is inadequate.
REINTJES WVSA Down-Angle Gearboxes
Not every engine room allows the engine and propeller shaft to be installed in a conventional straight-line arrangement.
The REINTJES WVSA series provides a down-angle gearbox configuration that gives vessel designers greater flexibility when positioning the propulsion engine and shaft line.
The family includes models in the WVSA 1542–1942 range.
These gearbox arrangements are particularly relevant to high-speed vessels and yachts where machinery-space layout and drivetrain geometry are important.
When sourcing REINTJES WVSA spare parts, the exact gearbox identification should be supplied because the drivetrain arrangement differs from a conventional straight-shaft installation.
REINTJES WVSFA V-Drive Gearboxes
The REINTJES WVSFA series provides another solution for vessels where engine-room layout influences propulsion design.
WVSFA gearboxes use a V-drive arrangement.
Instead of requiring a conventional straight engine-to-shaft installation, the V-drive configuration allows the propulsion engine to be positioned differently relative to the propeller shaft.
This can be particularly useful in yachts and other vessels where machinery-space optimization is important.
REINTJES Marine Gearboxes for Workboats
Commercial workboats can operate for long periods under substantial propulsion load.
Tugboats, fishing vessels, ferries and similar vessels therefore place demanding requirements on their marine transmissions.
For these applications, gearbox reliability depends on more than the strength of the gears.
Engineers should also monitor:
- Lubricating-oil condition
- Oil pressure
- Gearbox temperature
- Clutch operation
- Bearing condition
- Oil filtration
- Gearbox cooling
- Shaft alignment
- Coupling condition
- Vibration
Changes in these areas can provide an early indication that further inspection is required.
REINTJES Marine Gearboxes for Yachts and Fast Vessels
A high-performance yacht presents different engineering challenges from a heavy commercial workboat.
Weight becomes more important while the gearbox may still need to transmit considerable engine power.
REINTJES gearbox families such as WVS, WLS, WVSA and WVSFA address different high-performance propulsion arrangements.
These gearboxes can be used with conventional shaft systems, down-angle installations, V-drive configurations and other propulsion layouts.
For yacht gearbox repairs, correct parts identification is particularly important because different drivetrain arrangements can use parts that appear similar but have different specifications.
REINTJES DLG and DUG Dual Gearboxes
Not every vessel uses one engine connected to one conventional gearbox.
REINTJES also produces DLG and DUG dual gearbox systems for more complex marine propulsion arrangements.
Dual gearbox installations can combine propulsion inputs and outputs according to the vessel's drivetrain design.
These systems require careful parts identification because configuration differences can affect internal gearbox parts.
For DLG or DUG spare-parts requirements, provide the complete gearbox identification and available technical information together with the required parts list.
REINTJES RDG and RDGL Dredger Gearboxes
Dredgers operate under demanding conditions, and their propulsion and working systems can experience high and variable loads.
The REINTJES RDG and RDGL gearbox families are associated with dredger applications.
Maintenance and overhaul requirements may involve:
- Gears
- Pinions
- Bearings
- Shafts
- Seals
- Lubrication parts
- Clutch parts
- Gearbox cooling parts
- Monitoring parts
When abnormal wear is discovered during an overhaul, the cause should also be investigated.
Replacing a damaged bearing or gear without understanding why it failed may allow the same problem to occur again.
REINTJES VLJ Waterjet Gearboxes
Waterjet propulsion requires a different drivetrain arrangement from a conventional propeller and shaft line.
The REINTJES VLJ gearbox family is designed for marine waterjet applications.
For these installations, spare-parts identification should consider the complete propulsion arrangement, including the gearbox model, reduction ratio and waterjet configuration.
Inside a REINTJES Marine Gearbox
A marine gearbox contains several systems working together continuously.
Understanding the main areas of the gearbox makes troubleshooting and spare-parts identification easier.
Gears and Pinions
The gear train transfers engine torque while establishing the required reduction ratio.
Gear teeth operate under significant contact loads.
During a major inspection, technicians may look for:
- Pitting
- Tooth wear
- Surface damage
- Abnormal contact patterns
- Excessive backlash
- Heat discoloration
- Cracks
- Lubrication-related damage
A damaged gear is not always the original cause of the problem.
Bearing wear, shaft misalignment, contamination or inadequate lubrication can also contribute to abnormal gear contact.
Gearbox Shafts
Shafts support gears and transmit torque through the gearbox.
Inspection can include shaft surfaces, bearing locations, runout, wear and areas around seals.
If a shaft surface is damaged, simply installing a new seal may not solve an oil-leakage problem.
Bearings
Bearings maintain shaft position while supporting loads generated by the gears and propulsion system.
Possible signs of bearing trouble can include:
- Increasing vibration
- Abnormal noise
- Higher operating temperature
- Metal contamination in the oil
- Abnormal shaft movement
These symptoms do not automatically prove that a bearing has failed, but they justify further inspection.
Hydraulic Clutches
Many REINTJES marine gearboxes use hydraulically operated multi-disc clutches.
The clutch provides controlled engagement of the drivetrain.
If a gearbox develops delayed or poor engagement, possible areas requiring investigation can include:
- Clutch plates
- Hydraulic pressure
- Control valves
- Seals
- Oil condition
- Oil filters
- Related hydraulic parts
Replacing clutch plates without checking the hydraulic system may not correct the actual fault.
Why Marine Gearbox Oil Condition Matters
Lubricating oil is critical to gearbox operation.
It lubricates gears and bearings, helps remove heat and, in many gearbox designs, also supports hydraulic clutch operation.
Engineers should regularly monitor:
- Oil level
- Oil pressure
- Oil temperature
- Oil appearance
- Filter condition
- Water contamination
- Metallic particles
- Oil leakage
- Oil cooler performance
Milky oil can indicate water contamination.
Metallic particles can indicate internal wear.
Repeatedly increasing temperature can point to a cooling, lubrication or mechanical problem.
The important point is to investigate the cause of the problem, rather than simply correcting the visible symptom.
Common Signs of REINTJES Gearbox Problems
A marine gearbox problem does not always begin with complete propulsion failure.
Possible warning signs include:
- Delayed ahead engagement
- Delayed astern engagement
- Unusual gearbox noise
- Increased vibration
- High oil temperature
- Low oil pressure
- Oil leakage
- Repeated gearbox alarms
- Abnormal clutch operation
- Metallic particles in the oil or filter
- Changes in shaft behavior
These symptoms can have several causes.
A proper inspection should be carried out before replacement parts are ordered.
REINTJES Gearbox Overhaul Parts
A planned gearbox overhaul may require anything from a small sealing package to a much larger selection of internal replacement parts.
Depending on the gearbox and inspection findings, requirements can include:
Gear Parts
- Gear wheels
- Pinions
- Shafts
- Related hardware
Bearing Parts
- Roller bearings
- Thrust-bearing parts
- Bearing-related hardware
Clutch Parts
- Friction plates
- Steel plates
- Seals
- Hydraulic parts
- Control parts
Sealing Parts
- Shaft seals
- O-rings
- Gaskets
- Sealing rings
Lubrication Parts
- Oil pumps
- Filters
- Valves
- Oil-system seals
- Related lubrication parts
Monitoring Parts
- Pressure sensors
- Temperature sensors
- Speed sensors
- Switches
- Related monitoring parts
For a major overhaul, sending the complete REINTJES gearbox spare-parts list can make identification and quotation much more efficient.
REINTJES Gearbox Bearings and Seals
Bearings and seals are common areas of attention during marine gearbox maintenance.
A leaking shaft seal should not automatically be treated as an isolated seal failure.
Technicians should also consider the condition of the shaft surface, bearing condition and shaft movement.
Likewise, repeated bearing damage can indicate an alignment, lubrication or load problem elsewhere in the drivetrain.
Looking at the complete propulsion system is often more useful than simply replacing the damaged part.
REINTJES Gearbox Oil Pumps and Filters
Oil pressure must remain within the operating requirements of the particular gearbox.
A lubrication-system problem can affect gears, bearings and clutch operation.
Depending on the gearbox, service requirements may include:
- Oil pump
- Oil filter
- Pressure-control valve
- Oil cooler
- Oil hoses
- Seals
- Pressure switches
- Temperature monitoring parts
Always use the technical requirements for the installed gearbox when evaluating operating pressure, temperature and oil specification.
REINTJES Hybrid Marine Propulsion
Modern marine propulsion is increasingly combining mechanical and electrical power.
REINTJES has developed hybrid propulsion solutions that integrate the marine gearbox with an electric motor/generator and related electrical equipment.
Depending on the installation, hybrid propulsion can allow a vessel to operate in different modes rather than relying exclusively on the main diesel engine.
Possible operating advantages can include:
- Electric low-speed operation
- Flexible propulsion modes
- Generator operation
- PTO functionality
- PTI functionality
- More flexible engine loading
The actual benefits depend on the vessel design, electrical system, operating profile and propulsion requirements.
What Do PTO and PTI Mean?
These terms appear frequently when discussing modern marine gearboxes and hybrid propulsion.
PTO — Power Take-Off
Power from the main propulsion drivetrain is used to drive another machine, commonly a generator.
PTI — Power Take-In
Power from another source, such as an electric motor, is introduced into the drivetrain.
Hybrid marine propulsion can use PTO and PTI functionality to manage mechanical and electrical power more flexibly.
How to Identify the Correct REINTJES Marine Gearbox Spare Parts
Correct identification is one of the most important steps when ordering REINTJES replacement parts.
Whenever possible, provide:
- REINTJES gearbox model
- Complete serial number
- Reduction ratio
- Existing part number
- Engine make and model
- Required quantity
- Vessel type
- Delivery destination
If the existing part number cannot be identified, include clear photographs of the gearbox nameplate and removed part.
For an overhaul, send the complete spare-parts list together with the gearbox details.
Why the REINTJES Serial Number Is Important
A gearbox family name alone is not always sufficient for accurate spare-parts identification.
Two gearboxes within the same family may have differences related to:
- Gearbox size
- Reduction ratio
- Production version
- Shaft arrangement
- Clutch configuration
- Installed options
- Vessel application
The serial number helps identify the exact gearbox configuration.
This is particularly important for internal REINTJES gearbox replacement parts, where small specification differences can determine whether a part is suitable.
REINTJES Marine Gearbox Spare Parts Supplier
Alfa Marine Spare Parts supports shipowners, shipyards, yacht engineers, marine repair companies, fleet operators and purchasing departments sourcing REINTJES marine gearbox spare parts.
Requirements can include parts for:
- REINTJES WAF
- REINTJES WVS
- REINTJES WLS
- REINTJES WVSA
- REINTJES WVSFA
- REINTJES WF
- REINTJES WGF
- REINTJES SVA
- REINTJES SVAL
- REINTJES DLG
- REINTJES DUG
- REINTJES RDG / RDGL
- REINTJES VLJ
- Other REINTJES marine gearbox installations
We can assist with individual replacement parts as well as larger gearbox maintenance, repair and overhaul requirements, subject to identification and availability.
For a complete gearbox requirement or a larger overhaul parts list, include all available gearbox and vessel information with your inquiry.
Request a Quote for REINTJES Marine Gearbox Parts
Worldwide REINTJES Marine Spare Parts Sourcing
Alfa Marine Spare Parts supports customers sourcing REINTJES gearbox parts for commercial vessels, yachts and specialized marine applications.
We work with shipowners, shipyards, marine service companies, yacht engineers, vessel managers, engine and gearbox repair companies, fleet operators and technical purchasing departments.
Worldwide shipping is available according to parts availability and destination.
Alfa Marine Spare Parts is an independent marine spare parts supplier and is not an authorized REINTJES dealer.
Frequently Asked Questions
What information do I need to order REINTJES marine gearbox spare parts?
Provide the REINTJES gearbox model, serial number, reduction ratio, existing part number and required quantity. Engine information and a photograph of the gearbox nameplate can also help with accurate identification.
What is the difference between REINTJES WAF and WVS marine gearboxes?
REINTJES WAF gearboxes are primarily associated with heavy-duty commercial applications such as workboats, tugs, fishing vessels and ferries. WVS gearboxes are designed particularly for high-performance vessels, including yachts and patrol boats, where drivetrain weight is an important consideration.
Can Alfa Marine Spare Parts supply REINTJES gearbox overhaul parts?
Alfa Marine Spare Parts can assist with sourcing REINTJES marine gearbox parts for maintenance, repair and overhaul, including bearings, seals, clutch parts, gears, shafts, lubrication parts and related gearbox parts, subject to gearbox identification and availability.
Request a Quote for REINTJES Marine Gearbox Spare Parts
Looking for REINTJES marine gearbox spare parts, replacement parts or overhaul parts?
Send us your:
Gearbox model
Serial number
Reduction ratio
Part numbers
Required quantity
Engine information
Delivery destination