# Meridexion

> Marine engine spare parts, sourced and verified in China


## Posts

- [Avoiding Counterfeit Marine Spare Parts: A Practical Checklist](https://meridexion.com/counterfeit-marine-spare-parts/): How counterfeit and misrepresented marine spare parts enter the supply chain, the checks that expose them, and how to buy safely.
- [Payment Terms in Marine Spare Parts Trading: What Is Normal](https://meridexion.com/payment-terms-marine-spare-parts/): Common payment terms in marine spare parts trading, what each protects, and how to structure payment when the supplier or the buyer is new.
- [Consolidating a Docking Spare Parts Order: Why One List Beats Twenty](https://meridexion.com/consolidating-docking-spare-parts-order/): How to consolidate a docking spare parts list into one order: grouping by system, sequencing by lead time, and the savings in freight and administration.
- [Shipping Marine Spare Parts to a Vessel: Port, Agent and Customs](https://meridexion.com/shipping-marine-spare-parts-to-vessel/): How marine spare parts reach a vessel: choosing the port, working with the agent, clearing customs, and avoiding the delays that cost a sailing.
- [Class Certificates for Marine Parts: When You Need Them](https://meridexion.com/class-certificates-marine-parts/): When marine spare parts need class certification, what the different certificate types mean, and how to arrange certification without delaying the order.
- [Marine Spare Parts Inspection: What to Check Before Dispatch](https://meridexion.com/marine-spare-parts-inspection/): What to inspect on marine spare parts before they leave the supplier: dimensions, material, marking, packaging and photographic evidence.
- [Incoterms for Marine Spare Parts: EXW, FOB, CIF and DAP Explained](https://meridexion.com/incoterms-marine-spare-parts/): A practical guide to Incoterms for marine spare parts shipments: what each term covers, which suits urgent air freight, and where the risk actually transfers.
- [How Marine Spare Parts Are Priced (and Why Quotes Differ)](https://meridexion.com/how-marine-spare-parts-are-priced/): Why two quotes for the same marine spare part differ: material, origin, certification, quantity, freight and payment terms explained without the guesswork.
- [Chinese-Made Marine Spare Parts: Quality, Certification and Risk](https://meridexion.com/chinese-marine-spare-parts-quality/): An honest view of Chinese-made marine spare parts: where quality is strong, where it is not, what certification to require, and how to manage the risk.
- [Cross-Referencing Marine Part Numbers: How It Works](https://meridexion.com/cross-referencing-marine-part-numbers/): How marine part numbers are cross-referenced between engine makers and component manufacturers, why references fail, and how to verify a cross-reference.
- [Caterpillar and Cummins Marine Engine Parts: Sourcing Guide](https://meridexion.com/caterpillar-cummins-marine-engine-parts/): How to source Caterpillar and Cummins marine engine parts, where the two brands differ in parts support, and what to specify for a correct match.
- [Mitsubishi Marine Engine Parts: What to Order and How](https://meridexion.com/mitsubishi-marine-engine-parts/): Sourcing guide for Mitsubishi marine engine and turbocharger spare parts, including the auxiliary engine range and the MET turbocharger series.
- [Daihatsu Auxiliary Engine Spare Parts: A Practical Guide](https://meridexion.com/daihatsu-auxiliary-engine-spare-parts/): How to source Daihatsu auxiliary engine spare parts: DK and DC series, the wear parts that matter, and the information needed for a correct match.
- [Yanmar Marine Engine Parts: Auxiliary and Small Propulsion](https://meridexion.com/yanmar-marine-engine-parts/): A sourcing guide to Yanmar marine engine parts: the model families used on ships and small craft, the wear items that matter, and how to order them.
- [Wärtsilä and Sulzer Engine Spare Parts: Sourcing Notes](https://meridexion.com/wartsila-sulzer-engine-spare-parts/): Sourcing notes for Wärtsilä and Sulzer marine engine spare parts: model families, the components still in production, and how to handle discontinued references.
- [MAN B&W Two-Stroke Engine Spare Parts: A Buyer's Overview](https://meridexion.com/man-b-and-w-two-stroke-spare-parts/): How MAN B&W two-stroke engine spare parts are identified, sourced and verified, from MC and ME series cylinder components to fuel injection and running gear.
- [Marine Gaskets, O-Rings and Sealing Kits: How to Specify Them](https://meridexion.com/marine-gaskets-o-rings-sealing-kits/): How to specify marine gaskets, O-rings and sealing kits correctly: material, hardness, temperature rating, and why the cheapest seal is the most expensive.
- [Marine Lube Oil System: Pumps, Filters and Coolers Explained](https://meridexion.com/marine-lube-oil-system-parts/): How the marine lube oil system works, which components wear, and how to diagnose low pressure or high temperature before ordering parts.
- [What to Include in a Marine Spare Parts RFQ for a 24-Hour Quote](https://meridexion.com/marine-spare-parts-rfq-checklist/): The fields that make a marine spare parts enquiry quotable on the first pass: engine data, part identification, quantity, certification, delivery and destination — with a copy-paste template.
- [Marine Heat Exchangers and Coolers: Maintenance and Replacement](https://meridexion.com/marine-heat-exchangers-coolers-maintenance/): How shell-and-tube and plate heat exchangers foul and leak on ships, how to diagnose it, and what parts to order for a cooler overhaul.
- [Marine Turbocharger Parts: What Fails First and What to Order](https://meridexion.com/marine-turbocharger-parts-failures/): The turbocharger components that fail first on marine engines, how to diagnose them, and which spares to keep available.
- [Marine Engine Maintenance: Which Spare Parts to Replace and When](https://meridexion.com/marine-engine-maintenance-spare-parts-schedule/): A practical view of marine engine maintenance by system: what is replaced on a running-hour interval, what is condition-based, and which spare parts to hold on board.
- [Marine Fuel Injectors: Symptoms, Testing and Replacement](https://meridexion.com/marine-fuel-injectors-symptoms-testing/): How to recognise a failing marine fuel injector, how injectors are tested on board and ashore, and what to specify when ordering replacements.
- [Cylinder Liners and Piston Rings: Wear, Measurement and Replacement](https://meridexion.com/cylinder-liners-piston-rings-wear/): How cylinder liner and piston ring wear is measured on marine engines, what the limits mean, and when to replace rather than re-hone.
- [How to Source Obsolete and Discontinued Marine Engine Parts](https://meridexion.com/obsolete-marine-engine-parts/): A working method for sourcing obsolete and discontinued marine engine parts: identification by drawing, nameplate or sample, reverse engineering, and made-to-specification production.
- [Marine Engine Parts Glossary: 40 Terms Buyers Need to Know](https://meridexion.com/marine-engine-parts-glossary/): A working glossary of marine engine parts terminology for buyers and superintendents, from cylinder liners and piston crowns to elbows, seals and certificates.
- [Two-Stroke vs Four-Stroke Marine Engines: What It Means for Spare Parts](https://meridexion.com/two-stroke-vs-four-stroke-marine-engine-parts/): How two-stroke and four-stroke marine engines differ in the spare parts they need, and why the difference changes what you order and how you order it.
- [Marine Air Filters: Types, Specifications and How to Order the Right Replacement](https://meridexion.com/marine-air-filters-guide/): Marine air filters explained: intake, crankcase and control air filter types, the specifications that determine a correct replacement, and what to send when ordering.
- [OEM vs OEM-Equivalent Marine Spare Parts: How to Choose Without Risk](https://meridexion.com/oem-vs-oem-equivalent-marine-spare-parts/): Genuine OEM or OEM-equivalent? How to decide for marine spare parts — what changes in material, tolerance, certification, lead time and cost, and when each option is the right call.
- [Marine Engine Parts: A Complete Guide to Sourcing Spare Parts](https://meridexion.com/marine-engine-parts-sourcing-guide/): How to source marine engine parts properly: OEM and OEM-equivalent options, the information a supplier needs to quote, and how to avoid wrong or late shipments.

## Pages

- [Blog](https://meridexion.com/blog/): Practical guides on sourcing marine engine parts, filters and spare parts - from specification to delivery.
- [Gaskets, O-Rings & Sealing Kits](https://meridexion.com/marine-engine-parts/gaskets-seals/): Marine gaskets and seals: cylinder cover and manifold gaskets, O-ring kits, mechanical seals, gland packing and spiral wound gaskets in the right materials.
- [Main Bearings, Connecting Rod Bearings & Crankshaft Parts](https://meridexion.com/marine-engine-parts/bearings-crankshaft/): Main, connecting rod, crosshead and thrust bearings in standard and oversize sizes, with dimensional report per shell. Crankshaft parts and shims.
- [Starting Air Compressors, Valves & Receivers](https://meridexion.com/marine-engine-parts/starting-air-system/): Starting air compressors, compressor valve sets, starting air valves, air distributors, safety valves and receiver parts, with test records.
- [Fuel Oil Separators, Heaters & Filters](https://meridexion.com/marine-engine-parts/fuel-treatment/): Marine fuel treatment parts: separator bowls and disc stacks, feed pumps, fuel heaters, viscosity controllers and automatic backflush filters.
- [Lube Oil Pumps, Filters & Coolers](https://meridexion.com/marine-engine-parts/lubrication-system/): Marine lube oil pumps, duplex filters, filter elements, lube oil coolers and thermostatic valves for main and auxiliary engines.
- [Auxiliary Engine Parts — Daihatsu, Yanmar, Hanshin, Niigata](https://meridexion.com/marine-engine-parts/auxiliary-engine-parts/): Auxiliary engine parts for Daihatsu, Yanmar, Hanshin, Niigata, MaK and Wärtsilä gensets. Cylinder heads, piston kits, injection pumps, pumps and coolers.
- [Image credits](https://meridexion.com/image-credits/): Photography on meridexion.com is illustrative. Image sources and licenses: CC0 public domain and CC BY-SA works from Wikimedia Commons and rawpixel.
- [About Meridexion](https://meridexion.com/about-v2/): Meridexion is a sourcing office for marine engine spare parts based in China. Independent, no published prices, parts verified before dispatch. WhatsApp +86 153 1435 3017.
- [Marine Engine Spare Parts](https://meridexion.com/): Send a part number, drawing or nameplate photo. Meridexion sources and verifies marine engine spare parts from China for shipowners, shipyards and trading companies. Quotation within one business day.
- [How Sourcing Works](https://meridexion.com/how-it-works/): How Meridexion sources marine engine parts: enquiry, supplier matching, quotation within one business day, inspection before dispatch and documents for your port.
- [Request a Quotation](https://meridexion.com/request-a-quote/): Send your marine engine part number, drawing or photo and get a quotation within one business day. No minimum order. Drawings and photos welcome.
- [Cooling & heat exchange Parts](https://meridexion.com/marine-engine-parts/cooling-heat-exchange/): Marine cooling water pumps, plate and shell coolers, thermostats and mechanical seals. Wear parts, rotating assemblies or complete pumps.
- [Turbocharger & air Parts](https://meridexion.com/marine-engine-parts/turbocharger-air-system/): Marine turbocharger parts: rotor assemblies, nozzle rings, turbine blades, bearing kits and charge air coolers for ABB, MAN, MET and KBB frames.
- [Fuel injection Parts](https://meridexion.com/marine-engine-parts/fuel-injection-system/): Marine fuel injection parts: high-pressure pumps, plunger and barrel sets, delivery valves, injectors and nozzles matched to your fuel grade. Tested before shipping.
- [Cylinder & piston Parts](https://meridexion.com/marine-engine-parts/cylinder-piston-assembly/): Cylinder liners, pistons, piston rings and covers for MAN B&W, Wärtsilä/Sulzer, Mitsubishi UEC and other marine engines. Single parts or complete overhaul kits, with material certificates.
- [Marine Engine Parts](https://meridexion.com/marine-engine-parts/): Marine main and auxiliary engine parts by system: cylinder units, fuel injection, turbochargers, cooling, lubrication, starting air and more. OEM and verified alternatives.

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