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Overfill Alarm System Spare Parts Suppliers

The "TANK OVERFILL ALARM" legend stencilled on a tanker's cargo control console isn't decorative — under 46 CFR 39.2007 it has to appear in two-inch black letters, and the device behind it has to work every single transfer.

When a float switch sticks, an intrinsically safe barrier blows, or a deck junction box loses its seal, the vessel is one defective sensor away from a regulatory hold or a real spill.

RecordsMarine connects technical superintendents and procurement teams with vetted overfill alarm systems spare parts suppliers who can ship the right components to the right port within usable transit windows.

What the System Is Actually Protecting

A cargo tank overfill arrangement on a tanker is a layered safety architecture, not a single switch. Vessels typically carry a high-level alarm (HLA) that warns the person in charge to slow the loading rate, and a separate high-high level alarm (HHLA) — the overfill alarm proper — that triggers early enough to stop the transfer before the tank tops off.

Both have to be intrinsically safe, both have to be verifiable at the tank before each transfer, and both have to produce a visible and audible signal at the cargo control position and on deck. Chemical tankers, product carriers, VLCCs, bunker barges and FPSOs all run variations of the same logic, and most failures trace back to the same handful of replaceable items: a corroded sensor, a chafed cable, a saturated junction box, a tired alarm horn.

Components to Get from Suppliers of Spare Parts for Overfill Alarm Systems

Reputable suppliers of spare parts for overfill alarm systems carry far more than the headline sensor. The fast-moving items usually include:

  • Float-type, capacitive, vibrating-fork and ultrasonic level sensors in the original wetted-material specification
  • Intrinsically safe Zener and galvanic isolation barriers, plus replacement fuses
  • Junction boxes, gland plates and Ex-d cable glands rated for Zone 0 and Zone 1
  • Alarm panels, mimic displays, push-buttons, key switches and lamp modules
  • Sounders, xenon beacons and combined horn/strobe units for deck mounting
  • Test sockets, simulator plugs and portable test units for pre-transfer verification
  • Loop-powered repeaters, relay modules and PCB assemblies for the control cabinet

Cable assemblies and connectors deserve specific attention. Hot deck conditions on tankers age PVC and polyurethane sheaths quickly, and a cracked gland is the most common reason a system fails its annual class function test.

Class Approval and Hazardous Area Certification

Replacement parts for overfill alarms can't be cross-shopped on price alone — every wetted or zone-rated component needs documentation that travels with it. Expect type-approval certificates from ABS, DNV, Lloyd's Register, Bureau Veritas, ClassNK, RINA or KR, plus ATEX or IECEx certification for anything entering Zone 0 or Zone 1. EN 10204 3.1 material certificates apply to sensor housings and wetted parts.

Equally important, the part number on the new component has to match the revision listed in the vessel's approved type-approval drawing — a superseded version can fail a port-state inspection even when the hardware itself is identical.

Brand Coverage Across Providers of Spare Parts for Overfill Alarm Systems

The installed base on commercial tankers is dominated by a relatively narrow group of OEMs, and serious providers of spare parts for overfill alarm systems maintain stock or factory channels for most of them: Scanjet, Musasino, Honeywell Enraf, Emerson Rosemount (TankRadar and 2120-series vibrating forks), Pleiger, Krohne, MMC International, Selma and Hermetic.

Older bulkers and chemical tankers often run legacy systems from manufacturers that have since been acquired or rebranded, and the most useful vendors are the ones who can supply current production parts alongside refurbished or compatible legacy components without forcing a full system upgrade.

Pairing overfill alarm spares with replacement tank level gauge components in one consolidated order is also routine when a vessel is preparing for a class survey.

What Sets a Useful Vendor Apart

Three things matter once the OEM box is ticked. The first is documentation: a vendor who ships parts without matching certificates is creating a paperwork problem the chief engineer will inherit at the next survey.

The second is calibration support — most overfill sensors leave the factory uncalibrated to the specific tank geometry, so a vendor who either coordinates with an onboard calibration service or supplies pre-calibrated units against the vessel's tank tables saves real time alongside.

The third is logistics realism: tanker schedules don't accommodate four-week lead times, and a vendor has to be honest about what is on the shelf versus what is a factory order, and which ports they can actually reach inside a port call.

Sourcing Through RecordsMarine

The distributors of spare parts for overfill alarm systems listed on RecordsMarine cover the major OEM brands, hazardous-area certifications, and the full chain from individual sensor heads up to complete replacement panels. Compare the vendors below by brand coverage, class society approvals, port reach and stock position to shortlist the partner best matched to your fleet's installed equipment and upcoming survey calendar.

  • SEASTAR (HK) TRADE LIMITED logo

    Year Founded: 2018

    Verified

    SEASTAR (HK) TRADE LIMITED

    Verified

    providing original spare parts for main engines, auxiliary machinery, engine room equipment, and deck auxiliary systems to domestic and international shipowners and management companies. competitive pricing Our global service network and professional logistics team ensure timely delivery of your spare parts to designated ports and destinations. Heat Exchanger Galley Equipment Electric motor Deck Crane Grab Windlass Mooring Winch Hatch Cover Gangway Ladder Winch Steering Gear Pintle Bush Synthetic Phenol Resin Valve Fire Alarm Detector Navigation Communication Equipment Water Ingress Alarm System Electrical Instrument and Automation Fuel Valve Test Device Main Engine Auxiliary Engine Turbocharger Air Compressor M/E Auxiliary Blower Pumps Boiler Incinerator Fresh Water Generator Oily-water Separator Sewage Water Treatment Plant 15ppm Bilge Alarm Fuel Oil supply Module Purifier Refrigeration and Air Conditioning

    supply@seastartrade.com

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

      (190)

    CLASS APPROVED:

    IACS: ABS, ClassNK, CCS, BV

    WAREHOUSES:

    • China

  • Japan Marine (S) Pte ltd logo

    Year Founded: 2011

    Verified
    Verified

    We have listed our Key Strength Equipments as below for easy reference. We are strong in Main engines Aux Engines /Generators Compressors Main Air , Breathing , Refrigeration, Marine Pumps Purifiers /Separator Hatch Cover Spares / Hydraulic spares Electrical Hydraulic Motors Air horns Toilet Vacuum Systems Electrical spares and small components A/C Compressors HVAC system spares Boiler and Incinerators https://jmsgroup.jp/products/

    jmsgroup.jp
    operations@jmsgroup.jp

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

      (177)

    BRAND:

    • ALPTEC

    • Preferred Utilities

    • Veeder-Root

    • OilSafeSystem

    • JME ELLSWORTH

      (23)

    CLASS APPROVED:

    IACS: DNV

    WAREHOUSES:

    • Singapore

    • United Arab Emirates

    • Angola

    • Austria

    • Australia (209)

  • ARK MARINE SERVICE INC. logo

    Year Founded: 2004

    Verified
    Verified

    We specialize in providing original equipment supplies, primarily for main and auxiliary engine spares. As a factory-based company, we ensure the best pricing without compromising on quality. Our dedicated logistics team handles all deliveries efficiently, offering competitive rates for air, sea, and courier services.

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • Alpha Lubrication Systems

    • Anemometers

      (162)

    CLASS APPROVED:

    IACS: ClassNK, BV

  • MARINE INDUSTRIAL GROUP LIMITED logo

    Year Founded: 2025

    Verified
    Verified

    SUPPLIER OF OEM , ORIGINAL , OR SECOND HAND OF MARINE PARTS -Marine oil Lubricants -Marine Engines -Pumps -Main Engine -Auxiliary Engine/Generator -Engine Spares -Propeller -Hydraulics -Pumps Spares -Oil Purifier Spares -Heat Exchanger -Air Compressors Spares -Turbo Chargers Spares Marine Industrial Group: Excellence in Marine Solutions With a commitment to superior service and quality products, Marine Industrial Group is your go-to source for marine engineering supplies. We specialize in ship spare parts and auxiliary systems. MIG- Marine Industrial Group Limited

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • Alpha Lubrication Systems

    • Anemometers

      (166)

    WAREHOUSES:

    • Hong Kong

  • Focus Marine Ltd. logo

    Year Founded: 2020

    RM verified
    RM verified

    We supply marine spare parts as our core business from our reliable partners/makers all over the World. Our parts are equivalent products NON-GENUINE unless otherwise stated. A part of scope of supply mentioned below as per engine types. 5L16/24, 5L21/31, 6L23/30H, 8L23/30, 5L28/32H, 7L32/40, 16V32/40-Non CD 16V32/40-CD, 6S60 MC-C, 7S60MC-C Mk7 6N18AL-V, 6N21AL-SV, 6DK20 TC : TCA66, TCA44, NR34/S148, NR20/R, RH183, TPL67-C33 SPARE PARTS : 2/4 STROKE ENGINE SPARE PARTS - MAN BW MAN SULZER WARTSILA KOBE AKASAKA DAIHATSU YANMAR HANSHIN HIMSEN - CUMMINS TURBOCHARGERS - IHI, MITSUBISHI, MAN, NAPIER, ABB, KBB AIR COMPRESSORS - TANABE, YANMAR, SPERRE, SAUER, TEIKOKU, TAMROTOR SEPARATOR - ALFA LAVAL, WESTFALIA, MITSUBISHI PUMPS - ALLWEILER, NANIWA, DESMI, SHINKO, TEIKOKU, ISHII, SHIN SHIN PHE SPARE PARTS - SWEP, TRANTER, SONDEX, ALFA LAVAL, GEA, APV, HISAKA FILTERS - BOLL KIRCH, MOATTI

    CATEGORIES:

    • Overfill Alarm Systems

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Starters

    • Alpha Lubrication Systems

    • Automation Control Equipment & Control Units

    • BackWash Filters

    • Boiler Automation Equipment

    • Centrifugal Pumps

    • Control Air Dryers

    • Cranes

    • Diesel Generators

    • Distance Rings & Spacer Rings for Stern Tube

    • Engine Fuel Injection High Pressure Pipes (2-Strok

      (66)

    WAREHOUSES:

    • Turkey

    • China

    • Greece

    • Japan

    • South Korea (1)

  • TZ MARINE SERVICE LIMITED logo

    Year Founded: 2021

    RM verified
    RM verified

    TZ Marine also is a leading supplier for Marine equipments, Spare parts and Stores, offering original, license, OEM and replacement parts for a wide range of Products such as: Diesel Engine Spares Main Auxiliary, Two-stroke Four-stroke Turbo Charger Spares, Governor Spares Pump and pump spares Compressor and compressor spares Purifier/separator spares Spares for ICCP/MGPS system Electrical Switch, meter, Contactor, Time/Thermal relay, Lamp, fuse etc. Various Heat Exchanger and Coolers Pressure/Temperature Sensor, Gauge, Transducers, level switch etc. Navigation Communication Equipment Spares Rudder stock/pintle, Pintle bush/sleeve, nuts for stock/pintle Various low/high pressure Coarse Filter for Fuel Oil Seawater Hydraulic Pneumatic Tools, Bearings, Couplings etc. Mechanical Seals, Rubber Seals, O-rings etc. All kinds of valves butterfly v/v, gate v/v, globe v/v, stop v/v etc

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Automation Control Equipment & Control Units

    • Boat Engines

    • Boiler Automation Equipment

    • Centrifugal Pumps

    • Cranes

    • Electrical Cranes

    • Electrical Winch & Windlass

    • Engines (2-Stroke)

    • Engines (4-Stroke)

    • FRAMO Systems

      (41)

    WAREHOUSES:

    • China

  • NEW CHANNEL CHINA INTERNATIONAL CO LTD logo

    Year Founded: 2010

    RM verified
    RM verified

    SHIP SPARE PARTS, SHIP EQUIPMENT, ALTERNATIVE SOLUTIONS, SHIP REPAIR, INSPECTION SERVICES, SHIP REPAIR BROKER, OFFSHORE EQUIPMENT, CONSUMERABLES, PROVISIONS, ON-SITE SUPPLY SERVICE PROVIDER, TECHNICAL TEAM FOR ASSISTANCE

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • AIS (Automatic Identification Systems)

    • Alpha Lubrication Systems

    • AMS (Alarm Monitoring Systems)

    • Anemometers

    • Anti-Heeling Systems

    • ARPA (Automatic Radar Plotting Aids)

      (166)

    CLASS APPROVED:

    IACS: ABS, RINA, ClassNK, CCS, BV, CRS, PRS, KR, LR, DNV, IRS

    Non-IACS: RMRS, HRS, Other

  • international marine office logo

    Year Founded: 2014

    Welcome to International Marine Office IMO The Integrated Partner for Maritime Offshore Excellence Welcome to International Marine Office IMO, your comprehensive strategic partner providing full-spectrum solutions across the entire maritime and offshore lifecycle. We are a globally recognized force in engineering, construction, and operational support, committed to driving efficiency and sustainability for our clients. International Marine Office IMO, a powerhouse in the global maritime sector, specializing in delivering comprehensive solutions from design to delivery and throughout the operational lifecycle of your vessel. For over than 20 years experience, IMO has been the trusted name for clients demanding reliability, innovation, and integrated service excellence. Our expertise is built upon a foundation of deep technical knowledge across all phases of the marine industry:

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • Alpha Lubrication Systems

    • Anemometers

      (168)

    WAREHOUSES:

    • Egypt

  • SOVHAN MARINE SYNDICATE logo

    Year Founded: 1998

    Trusted exporter and reseller of genuine OEM and quality used ship spare parts. All items are carefully sourced from ship demolition yards, thoroughly overhauled, and tested to ensure reliable performance.

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

      (161)

    CLASS APPROVED:

    IACS: ABS, ClassNK, BV, LR, DNV, IRS

    WAREHOUSES:

    • Bangladesh

  • DIESEL PARTNERS COREA CO.LTD logo

    Year Founded: 2013

    1. marine engine spare parts 1.1. MAIN ENGINE 1.1.1. 2 stroke engine spare parts - MAN, WARTSILA, MITSUBISHI, HANSHIN etc. 1.2. AUX. ENGINE 1.2.1. 4 stroke engine spare parts - MAN Holeby, YANMAR, DAIHATSU etc. 1.3. TURBOCHARGER 1.3.1. MAN Tubocharger major components additionally IHI, MET, ABB Turbocharger etc. 1.4. GENERATOR SET 1.4.1. MARINE 1.4.2. MARINE EMERGENCY 1.4.3. STATIONARY 1.4.4. ALTERNATOR 2. AUXILIARY MACHINERIES PARTS AS PER CONTENTS IN OUR WEBSITE 3. EXPERT LOGISTICS SERVICES

    CATEGORIES:

    • Overfill Alarm Systems

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

      (172)

    CLASS APPROVED:

    IACS: DNV

    WAREHOUSES:

    • South Korea

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