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Spare Parts
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Emission Control & Monitoring Systems Spare Parts
Scrubbers, SCR units, EGR loops, and continuous monitoring systems all need a steady stream of replacement parts to stay within regulatory limits. Spray nozzles wear, catalyst blocks foul, sensors drift, urea injectors clog, and pH probes lose calibration.
A single failed part can take the whole installation offline and force a switch to compliant fuel or a derated engine setting.
RecordsMarine maintains a directory of suppliers offering emission control and monitoring systems spare parts for fleet purchasing teams, technical managers, and ETOs handling compliance gear across the fleet.
What's in the Parts List
The category covers a long list of items across all emission technologies:
- Scrubber spray nozzles and demister pads
- Caustic dosing pumps and metering valves
- Washwater pH, turbidity, and PAH sensors
- SCR catalyst blocks and replacement modules
- Urea injection valves and dosing pumps
- AdBlue heating lines and tank sensors
- EGR cooler tubes and seals
- NOx, SOx, and CO2 sensor cells
- CEMS analyzer modules and sample lines
- Data logger memory cards and backup batteries
- Sludge transfer pumps and level switches
- Software keys and license dongles
Most fleets carry spare parts for emission control and monitoring systems matched by serial number to the installed equipment, which keeps the system within type approval after replacement.
Items Worth Keeping Onboard
These are the items that we recommend keeping:
- Spare washwater pH and turbidity probes
- One full set of scrubber spray nozzles
- Spare NOx sensor for the SCR outlet
- Urea injector with mounting kit
- Replacement filter elements for the caustic dosing system
- Backup pump for the washwater discharge line
- Spare CEMS sample line and filter cartridges
The most common failures trace to sensor drift, nozzle clogging, and pump wear. Quick onboard replacement keeps EU MRV reports clean and avoids costly downtime.
Recommended Sources
Spare parts for emission gear come mostly from the original makers:
- Alfa Laval (PureSOx, PureNOx)
- Wärtsilä Exhaust Treatment
- Yara Marine Technologies
- MAN Energy Solutions
- Hitachi Zosen Inova
- Green Instruments
- Martek Marine
- DuPont Clean Technologies
Brand-matched parts stay traceable during class survey and protect type approval. Aftermarket sources exist for some sensor cartridges and pump consumables, but catalyst blocks, urea injectors, and certified monitoring sensors should always come from the OEM.
What to Check Before Ordering
Check these points before ordering:
- System make, model, and serial number
- Software version on the control unit
- Sensor calibration certificates with each delivery
- Type approval valid for your flag state
- Lead time fitting the next port call or dry dock
- Shelf life on chemicals, calibration gas, and reagents
- Hazardous material handling for urea and caustic
- Warranty coverage after installation
A photo of the existing part with the nameplate often shortens the quote turnaround on legacy installations.
Industry Standards
Emission control parts must meet MARPOL Annex VI, IMO MEPC.184 on washwater discharge, IMO Tier III NOx limits, EU MRV regulation 2015/757, ISO 8178 on emission testing, IEC 62388 for marine sensors, and IEC 61508 for functional safety on CEMS units. Class society type approval applies to safety-critical components.
Frequently Asked Questions
Which parts fail most often?
Sensors and spray nozzles lead the list. Calibration drift on NOx and pH probes is the most common recurring issue.
How often are catalyst blocks replaced?
Every 3 to 5 years on most SCR installations, longer with clean fuel and proper urea quality.
Can I use aftermarket NOx sensors?
Only if type-approved. Generic sensors fail the class survey on Tier III engines.
What is the typical lead time?
Common items ship in 1 to 3 weeks. Catalyst blocks and custom sensors can take 8 to 12 weeks.
Do parts arrive with calibration data?
Sensors and analyzer modules, yes. Mechanical parts ship with material certificates only.
Find Emission Spare Parts Supplier Near You
The list below covers spare parts suppliers serving major ECA ports and OEM service hubs. Pick from the entries to match your installed system, sensor brand, and ordering schedule.

Year Founded: 2018
VerifiedCATEGORIES:
Emission Control & Monitoring Systems
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
(195)
BRAND:
SABB
Fuji Electric
SICK AG
Goltens
OPSIS AB
(38)
CLASS APPROVED:
IACS: ABS, ClassNK, CCS, BV
WAREHOUSES:
China

Year Founded: 2011
VerifiedCATEGORIES:
Emission Control & Monitoring Systems
15 PPM Monitoring Equipment
AIS (Automatic Identification Systems)
AMS (Alarm Monitoring Systems)
ARPA (Automatic Radar Plotting Aids)
(177)
BRAND:
SABB
Fuji Electric
SICK AG
Goltens
OPSIS AB
(38)
CLASS APPROVED:
IACS: DNV
WAREHOUSES:
Singapore
United Arab Emirates
Angola
Austria
Australia (209)

Year Founded: 2004
VerifiedCATEGORIES:
Emission Control & Monitoring 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

Year Founded: 2025
VerifiedCATEGORIES:
Emission Control & Monitoring 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

Year Founded: 2010
RM verifiedCATEGORIES:
Emission Control & Monitoring 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

Year Founded: 2014
CATEGORIES:
Emission Control & Monitoring 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

Year Founded: 1998
CATEGORIES:
Emission Control & Monitoring 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

Year Founded: 2013
CATEGORIES:
Emission Control & Monitoring 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

Year Founded: 2024
CATEGORIES:
Emission Control & Monitoring 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
(171)
CLASS APPROVED:
IACS: RINA, ClassNK, CCS, BV, CRS, TL, KR, LR, DNV
Non-IACS: HRS, Other
WAREHOUSES:
Bangladesh

Year Founded: 2010
CATEGORIES:
Emission Control & Monitoring Systems
15 PPM Monitoring Equipment
AMS (Alarm Monitoring Systems)
Accommodation Ladder Davits
AUS (Automatic Unloading Systems)
ARPA (Automatic Radar Plotting Aids)
Accomodation Ladders & Gangways
Air Compressors
Air Driven Motors
Air Horns
Air Starters
Automation Control Equipment & Control Units
Autopilot
BNWAS (Bridge Navigational Watch Alarm Systems)
BWTS (Ballast Water Treatment Systems)
(118)
WAREHOUSES:
India