Marine Spare Parts Supplier India | UAE, Singapore, Turkey
Marine Spare Parts Supplier India | UAE, Singapore, Turkey
Napier · NA · NR · NT · Turbocharger
Genuine, OEM and reconditioned spares for Napier turbochargers — the Napier NA, the high-efficiency NR / NR and the Napier 7-series — sourced beside Alang, shipped to India, UAE, Singapore & worldwide.
A century of diesel
The historic British engineering name D. Napier & Son, later renowned for marine turbochargers.
Napier develops marine exhaust-gas turbochargers in Lincoln, England.
The Napier NA axial turbocharger becomes a standard on medium- and large-bore marine engines.
Napier adds the NR radial series and the high-efficiency 7-series.
Napier Turbochargers is now part of Wabtec; Wattmare keeps every NA, NR and 7-series unit running with genuine, OEM-equivalent and Alang-reconditioned parts.
Who is Napier
Napier Turbochargers, of Lincoln, England (now part of Wabtec), makes the NA, NR and 7-series marine exhaust-gas turbochargers, fitted to medium- and large-bore two-stroke and four-stroke engines across the world fleet.
A single fleet can run the axial NA series, the radial NR series, or the high-efficiency 7-series — and Wattmare supplies genuine, OEM-equivalent and Alang-reconditioned turbocharger spares (rotors, cartridges, nozzle rings, bearings and compressor wheels) across every Napier frame size.
Engine series we cover
Mechanical 2-strokeThe classic two-stroke that powered a generation of merchant ships. Many are ageing out — exactly why fleets struggle to find parts. Our strongest Alang line.
View all 23 NA models
Common-rail 2-strokeThe rotor-free high-efficiency two-stroke — sealing-air and bearings controlled electronically from a high-pressure rail. We hold sealing rings, sealing-air parts, injection equipment, cartridges and compressor wheels.
View all 3 NR models
Current 2-strokeThe current generation built under the Napier group — 7-series44 up to 7-series61. Cartridges, compressor wheels, nozzle rings and bearing parts.
View all 7 7-series modelsBy the numbers
Parts we supply
Genuine & reconditioned cartridges for the full NA, NR and 7-series range, honed to OEM tolerance with measurement reports.
Surface-ground turbocharger casings with bushings, studs and gasket kits across all NA and NR frame sizes.
Forged steel compressor wheels and skirts for all NA, NR and 7-series frame sizes — reconditioned compressor wheels dimensionally verified.
Compressor wheel rods with renewed running surfaces, matched to your exact turbocharger frame and shaft.
Compression and oil-control ring sets — pre-profiled and chrome-ceramic rings to Napier spec.
Fuel injection valves, injector nozzles and atomisers for NA and NR engines, bench-tested before dispatch.
High-pressure lube-oil pumps, plungers and barrels for NA, plus high-efficiency supply units and flow-control valves for NR.
Complete bearings — Nimonic spindles, valve seats, cages, bottom pieces and air-spring components.
Main, thrust & shaft white-metal, trimetal and bimetal shells with material test certificates.
Housings, scraper and sealing ring sets for the compressor wheel rod — a key NA and NR service item.
Rail valves, sealing-air parts, injection control units and supply-unit parts for NR / NR engines.
Camshaft chain-drive links, tighteners, sprockets and gear-drive parts for Napier NA engines.
Telescopic compressor wheel-cooling pipes and guide assemblies feeding oil to the shaft and compressor wheel.
Air-intake filter silencers and silencer felts, cleaned and inspected for two-stroke engines.
Full sealing kits, cooling-jacket O-rings and high-temperature gaskets per engine model.
High-tensile casing, tie-rod and main-bearing studs and hydraulic nuts.
Models & specifications
All 33 Napier two-stroke models we supply — genuine, OEM-equivalent, or Alang-reconditioned. Tap any model for an instant WhatsApp quote; can’t see yours? Send the nameplate and we’ll match it.
33 Napier two-stroke models indexed — genuine, OEM-equivalent & Alang-reconditioned. Send your exact NA / NR / 7-series designation and we’ll match the part.
Which part is right?
Overhaul & repair kits
Send your exact NA, NR / NR or 7-series designation and we assemble a complete bearing-service, cartridge-exchange or full-service kit — turbocharger cartridges, sealing rings, nozzle rings, bearing assemblies, shaft-seal rings, gaskets, O-rings and fasteners. Genuine or reconditioned, every kit ships with material or inspection certificates and a packing list cross-checked to your turbocharger.
Compressor wheel rings, nozzle rings, casing O-rings, bearing inspection set and gaskets for a routine bearing service on one or all units.
Turbocharger cartridge, sealing rings, compressor-wheel inspection set, nozzle rings, bearing assembly and shaft-seal rings.
Full rotating assembly — cartridges and wheels, rods, journal and thrust bearings, lube-oil pumps or high-efficiency parts and complete seal and fastener sets.
Inside the stockyard · 01
The axial NA series — NA297 through NA557 — rotor shafts, nozzle rings, bearings, compressor wheels and complete cartridges, genuine and reconditioned beside Alang.
Inside the stockyard · 02
NR12, NR15, NR20 and NR29 — radial-flow rotor assemblies, nozzle rings, sealing-air parts and bearings for medium-speed engines.
Inside the stockyard · 03
The high-efficiency 7-series — cartridges, compressor wheels, bearings and filter silencers for modern marine engines.
Inside the stockyard · 04
Beside the world’s largest ship-recycling yard, we recover low-hour Napier parts no distributor stocks — documented, packed and airborne to your port.
Why Wattmare for Napier
Direct access to genuine, low-hour Napier NA and NR parts no distributor still stocks — 30–50% below European prices.
One WhatsApp, one photo. We confirm stock, document, pack and fly it to your port — day or night.
From obsolete Napier NA lube-oil pumps and shaft seals to NR high-efficiency units — we know the difference and stock both.
Material certificates on genuine parts; inspection and measurement reports with photos on reconditioned.
How we source & recondition
Low-hour Napier parts recovered from vessels at the world’s largest ship-recycling yard.
Every part is dimensionally checked against OEM drawings and Napier tolerance limits.
Crack-detection, hardness and pressure testing on all critical cartridges and wheels, valves and bearings.
Inspection report, photos and a 30-day warranty — packed and air-freighted worldwide in 24–48 hours.
Fleets we supply
From capesize bulkers to LNG gas carriers — tap your vessel type for the full spare-parts range.
Napier NA and NR main-engine spares for handysize to capesize fleets.
NA and NR wear parts and fuel equipment for VLCC and MR fleets.
NA/NR rotating assembly plus cargo-pump prime-mover spares for chem fleets.
High-output NA and 7-series spares for feeder to ultra-large vessels.
X-DF dual-fuel rotating assembly and combustion components for LNG fleets.
Four-stroke Napier 26 and 32 spares for supply and anchor-handling vessels.
NA and smaller NA spares for multipurpose and coaster ships.
NA and NR main-engine spares for PCTC and Ro-Ro fleets.
Smaller-bore NA and 7-series turbocharger spares for trawler fleets.
Four-stroke Napier 32 and 46 genset and auxiliary spares for passenger ships.
Auxiliary Napier four-stroke and rotating-assembly spares for naval support vessels.
Legacy Napier NA lube-oil pumps, shaft seals and rotating assembly no distributor still offers.
Where we deliver
Air-freighted from Alang / Bhavnagar to the world’s biggest bunkering and repair hubs in 24–48 hours. Tap a market for local lead times and ports.
Diagnose the fault
| Symptom | Likely Napier parts to inspect |
|---|---|
| Loss of compression or power on one unit | Turbocharger cartridge, sealing rings, compressor wheel |
| High exhaust temperature after the turbocharger | Nozzle ring, bearing spindle |
| Knocking or pounding from the rotorcase | Main, thrust or shaft bearings |
| Rising charge-air temperature | Cartridge wear, sealing rings, shaft-seal rings |
| Difficult or failed starting | Starting air valve, lube-oil pump (plunger / barrel) or rail valve |
| Black or smoky exhaust | Nozzle ring nozzles, slide valves, turbocharger interface |
| Oil leak at the compressor wheel-rod gland | Stuffing box scraper and sealing ring set |
| Water in the combustion space | Turbocharger casing, cooling-jacket O-rings, cartridge |
Compare the marques
Run a mixed fleet? We supply spare parts across all three of the great low-speed two-stroke marques — here’s how they compare and where each one fits.
The complete guide
Wattmare is a specialist Napier turbocharger spare parts supplier serving India, the UAE, Singapore and the wider global fleet. From our base in Bhavnagar — beside the Alang ship-recycling yard — we supply genuine, OEM-equivalent and reconditioned spares for every generation of Napier two-stroke marine turbocharger, dispatched worldwide in 24–48 hours.
Napier turbochargers come from D. Napier & Son, a historic British engineering name, built in Lincoln, England and now part of Wabtec. The NA, NR and 7-series have powered marine engines worldwide for decades. We supply spares across all of them.
The single most important question on any Napier order is whether the engine is an NA, an NR or an 7-series. The Napier NA is classic — lube-oil pump, fuel cam, shaft seal and mechanical bearing gear. The NR / NR and the Napier 7-series are electronically controlled, replacing the rotor with a high-efficiency supply unit, sealing rings, sealing-air parts and hydraulically actuated bearings. Cartridges, casings, compressor wheels and bearings are broadly common by frame size, but injection and actuation parts are entirely different — always give us your exact NA / NR / 7-series designation.
Alongside the two-strokes, Napier’s medium-speed four-stroke engines power gensets and auxiliary sets. The range — Napier NA, NR and 7-series turbochargers, plus the V-versions — is among the most installed auxiliary engines afloat. While this page focuses on the marine turbochargers, we also supply rotor shafts, compressor wheels, cartridges, valves, nozzle rings, lube-oil pumps and bearings for these four-strokes.
Bhavnagar sits beside Alang, where hundreds of vessels are dismantled every year — including ships still running ageing Napier NA two-stroke engines. That gives Wattmare direct access to genuine, low-hour parts that are slow or costly to source from distributors, at a fraction of new-part cost and lead time. For hard-to-find NA lube-oil pumps, shaft seals, cartridges or rotating assembly, this is the fastest source in the world. Browse our reconditioned marine spare parts range, the wider turbocharger spare parts category, or sister brands like MAN engine spares and Mitsubishi UEC.
Send your Napier engine make and model with a photo or part number on WhatsApp, or use the quote form. We confirm availability and price — usually within the hour — and dispatch in-stock items within 24 hours. Typical air-freight transit is 12–18 hours to the UAE, 16–24 to Singapore, 20–26 to Greece and Turkey, and 28–36 to Northern Europe.
FAQ
Yes — turbocharger cartridges are one of our strongest Napier lines. We carry genuine and reconditioned cartridges for the NA and NR series, plus the rest of the NA range (NA297 to NA557), honed to OEM tolerance with measurement reports. Most legacy NA cartridges are recovered and reconditioned beside Alang.
The Napier NA is a classic (mechanical) two-stroke — lube-oil pump, fuel cam and mechanical bearing actuation. The NR / NR and the Napier 7-series are electronically controlled, replacing the rotor with a high-efficiency supply unit, sealing rings, sealing-air parts and hydraulically actuated bearings. Cartridges, compressor wheels and bearings are broadly similar by frame size, but the injection and bearing actuation parts are completely different — always quote your exact NA, NR or 7-series model.
We cover the full two-stroke range — the current Napier 7-series (7-series, 7-series, 7-series, 7-series, 7-series, 7-series, 7-series), the high-efficiency NR / NR (the NR and 7-series range) and the legacy Napier NA (NA297 up to NA557, including the NR and 7-series variants) — every Napier NA, NR and 7-series frame size. We also supply the four-stroke medium-speed Napier NA, NR and 7-series turbochargers.
Reconditioned parts ship with inspection reports, dimensional measurements and photographs, and are accepted by class societies (Lloyd’s Register, DNV, ABS, BV, ClassNK, RINA) on survey. Genuine Napier parts carry full material and test certificates.
In-stock items dispatch within 24 hours from Bhavnagar. Typical air-freight transit to the UAE (Dubai, Jebel Ali, Fujairah) is 12–18 hours. Singapore is 16–24 hours, Greece and Turkey 20–26, and Northern Europe 28–36.
Yes — nozzle rings, injector nozzles, high-pressure lube-oil pumps, plungers and barrels for Napier NA engines, plus high-efficiency supply units, sealing rings, sealing-air parts and injection equipment for NR / NR and 7-series engines, are stocked and bench-tested before dispatch.
Genuine parts come from the original maker (Napier / Napier) with full certificates. OEM-equivalent are quality aftermarket parts at 30–50% less. Reconditioned are low-hour parts recovered from Alang, inspected and certified to OEM tolerance, at up to 70% less with a 30-day warranty.
Yes — obsolete Napier NA parts are our specialty. Beside Alang we recover low-hour lube-oil pumps, shaft seals, cartridges and wheels and rotating assembly from NA-powered vessels being dismantled, then inspect and certify them. For the NA and NR range and NA engines this is often the fastest source in the world.
Yes — rotor, cartridge and bearing spares for the four-stroke medium-speed Napier NA, NR and 7-series turbochargers, including rotor shafts, compressor wheels, cartridges, nozzle rings and bearings, fuel equipment and bearings for gensets and auxiliary engines.
Send your engine model and a photo or part number on WhatsApp (+91 96647 18068), or use the quote form. We confirm availability and price, usually within the hour — whether you need genuine, OEM-equivalent, used or reconditioned parts, or a complete service kit.
We ship from Alang/Bhavnagar to the UAE, Dubai, Singapore, Greece, Turkey and every major port worldwide in 24–48 hours. Parts are export-packed with VCI wrapping, wooden crates and palletisation, with photos shared before dispatch and full export documentation included.
Yes — bearing-service, cartridge-exchange and full-service kits assembled to your exact NA, NR / NR or 7-series model, with cartridges, sealing rings, nozzle rings, bearing assemblies, shaft-seal rings, gaskets, O-rings and fasteners included.
Request a quote · reply within the hour
Emergency Napier failure, dry-dock service, or a long-term pipeline — send your engine and part, and a founding partner replies on WhatsApp, usually within the hour. Genuine, OEM, used or reconditioned.
Wattmare — Bhavnagar, Gujarat, India, beside the Alang ship-recycling yard. Genuine, OEM & reconditioned Napier spares, worldwide in 24–48 hours.
India 
Bhavnagar 
UAE 
Singapore 
Greece 
Turkey 
Egypt 
China 
South Korea 
Japan 
Philippines 
Netherlands 
Norway