Marine Spare Parts Supplier India | UAE, Singapore, Turkey
Marine Spare Parts Supplier India | UAE, Singapore, Turkey
Sulzer · RTA · RT-flex · RD · RND · RLB
Genuine, OEM and reconditioned spares for Sulzer two-stroke main engines — the Sulzer RTA, the common-rail RT-flex / RTA-flex and the WinGD X-Series — sourced beside Alang, shipped to India, UAE, Singapore & worldwide.
A century of diesel
Founded in Winterthur, Switzerland — the engineering house whose low-speed two-stroke diesels would power the world’s merchant fleet.
Sulzer launches the RTA series — the camshaft-controlled low-speed two-stroke that becomes a backbone of merchant shipping for decades.
Finland’s Sulzer takes over the New Sulzer Diesel business — the RTA lineage continues under the Sulzer name.
The camshaft-free RT-flex / RTA-flex arrives with electronically controlled common-rail fuel injection and hydraulic exhaust valves — the leap to intelligent combustion.
Sulzer and China’s CSSC form WinGD, carrying the two-stroke line forward as the X-Series (X35-B to X92-B) — the parts we source for every generation.
Who is Sulzer
Sulzer of Winterthur, Switzerland pioneered the low-speed two-stroke marine diesel — the legendary RTA and common-rail RT-flex engines that powered the world’s merchant fleet. Wärtsilä acquired the Sulzer diesel business in 1997, and the two-stroke line continues today under WinGD as the X-Series.
A single fleet can run the classic Sulzer RD / RND / RLB engines, the workhorse RTA series, or the common-rail RT-flex / RTA-flex — and Wattmare supplies genuine, OEM-equivalent and Alang-reconditioned spares across every Sulzer bore.
Engine series we cover
Mechanical 2-strokeThe camshaft-controlled 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 RTA models
Common-rail 2-strokeThe camshaft-free common-rail two-stroke — fuel injection and exhaust valves controlled electronically from a high-pressure rail. We hold rail valves, flow-control units, injection equipment, liners and crowns.
View all 3 RT-flex models
Current 2-strokeThe current generation built under the Sulzer–CSSC joint venture — X35-B up to X92-B. Liners, piston crowns, common-rail injection and exhaust-valve parts.
View all 7 X-Series modelsBy the numbers
Parts we supply
Original-bore & reconditioned liners for the full RTA, RT-flex and X-Series range, honed to OEM tolerance with measurement reports.
Surface-ground two-stroke cylinder covers with bushings, studs and gasket kits across all RTA and RT-flex bores.
Forged steel crowns and skirts for all RTA, RT-flex and X-Series bores — reconditioned crowns dimensionally verified.
Piston rods with renewed running surfaces, matched to your exact cylinder unit and crosshead.
Compression and oil-control ring sets — pre-profiled and chrome-ceramic rings to Sulzer spec.
Fuel injection valves, injector nozzles and atomisers for RTA and RT-flex engines, bench-tested before dispatch.
High-pressure fuel pumps, plungers and barrels for RTA, plus common-rail supply units and flow-control valves for RT-flex.
Complete exhaust valves — Nimonic spindles, valve seats, cages, bottom pieces and air-spring components.
Main, crankpin & crosshead white-metal, trimetal and bimetal shells with material test certificates.
Housings, scraper and sealing ring sets for the piston rod — a key RTA and RT-flex overhaul item.
Rail valves, flow-control units (FCU), injection control units and supply-unit parts for RT-flex / RTA-flex engines.
Camshaft chain-drive links, tighteners, sprockets and gear-drive parts for Sulzer RTA engines.
Telescopic piston-cooling pipes and guide assemblies feeding oil to the crosshead and piston.
Cylinder and main starting-air valves, overhauled and pressure-tested for two-stroke engines.
Full sealing kits, cooling-jacket O-rings and high-temperature gaskets per engine model.
High-tensile cylinder-cover, tie-rod and main-bearing studs and hydraulic nuts.
Models & specifications
All 33 Sulzer 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 Sulzer two-stroke models indexed — genuine, OEM-equivalent & Alang-reconditioned. Send your exact RTA / RT-flex / X-Series designation and we’ll match the part.
Which part is right?
Overhaul & repair kits
Send your exact RTA, RT-flex / RTA-flex or X-Series designation and we assemble a complete decarbonising, top-overhaul or major-overhaul kit — cylinder liners, piston rings, fuel injection valves, exhaust-valve spindles, stuffing-box 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 engine.
Piston rings, fuel injection valves, cylinder-cover O-rings, exhaust-valve grinding set and gaskets for a routine de-carb on one or all units.
Cylinder liner, piston rings, piston-crown inspection set, fuel injection valves, exhaust-valve spindle & seat and stuffing-box sealing rings.
Full running gear — liners, crowns, rods, main / crankpin / crosshead bearings, fuel pumps or common-rail parts and complete seal and fastener sets.
Inside the stockyard · 01
The camshaft-controlled RTA38 through RTA96C, including the U and T high-output range — liners, covers, piston crowns, fuel pumps, chain drives and bearings, genuine and reconditioned beside Alang.
Inside the stockyard · 02
RTA-flex52, RTA-flex62 and RTA-flex72 — common-rail supply units, rail valves, flow-control units (FCU), electronic fuel injection and exhaust-valve actuators alongside the shared liners, crowns and covers.
Inside the stockyard · 03
X35-B up to X92-B common-rail running gear, plus the four-stroke medium-speed Sulzer 32 and 46 workhorse — cylinder heads, pistons, inlet/exhaust valves and fuel equipment for gensets and auxiliaries.
Inside the stockyard · 04
Beside the world’s largest ship-recycling yard, we recover low-hour Sulzer parts no distributor stocks — documented, packed and airborne to your port.
Why Wattmare for Sulzer
Direct access to genuine, low-hour Sulzer RTA and RT-flex 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 Sulzer RTA fuel pumps and chain drives to RT-flex common-rail 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 Sulzer parts recovered from vessels at the world’s largest ship-recycling yard.
Every part is dimensionally checked against OEM drawings and Sulzer tolerance limits.
Crack-detection, hardness and pressure testing on all critical liners, crowns, 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.
Sulzer RTA and RT-flex main-engine spares for handysize to capesize fleets.
RTA and RT-flex wear parts and fuel equipment for VLCC and MR fleets.
RTA/RT-flex running gear plus cargo-pump prime-mover spares for chem fleets.
High-output RTA96C and X92-B spares for feeder to ultra-large vessels.
X-DF dual-fuel running gear and combustion components for LNG fleets.
Four-stroke Sulzer 26 and 32 spares for supply and anchor-handling vessels.
RTA38 and smaller-bore RTA spares for multipurpose and coaster ships.
RTA and RT-flex main-engine spares for PCTC and Ro-Ro fleets.
Smaller-bore RTA and four-stroke Sulzer 20 spares for trawler fleets.
Four-stroke Sulzer 32 and 46 genset and auxiliary spares for passenger ships.
Auxiliary Sulzer four-stroke and running-gear spares for naval support vessels.
Legacy Sulzer RTA fuel pumps, chain drives and running gear 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 Sulzer parts to inspect |
|---|---|
| Loss of compression or power on one unit | Cylinder liner, piston rings, piston crown |
| High exhaust temperature on one cylinder | Fuel injection valve / nozzle, exhaust valve spindle |
| Knocking or pounding from the crankcase | Main, crankpin or crosshead bearings |
| Excessive cylinder-oil consumption | Liner wear, piston rings, stuffing-box rings |
| Difficult or failed starting | Starting air valve, fuel pump (plunger / barrel) or rail valve |
| Black or smoky exhaust | Fuel valve nozzles, slide valves, turbocharger interface |
| Oil leak at the piston-rod gland | Stuffing box scraper and sealing ring set |
| Water in the combustion space | Cylinder cover, cooling-jacket O-rings, liner |
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 Sulzer engine 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 Sulzer two-stroke marine main engine, dispatched worldwide in 24–48 hours.
The two-stroke engines on this page descend from Sulzer Brothers of Winterthur, Switzerland — one of the oldest names in engineering. Sulzer of Finland acquired the Sulzer diesel business in 1997, and in 2015 the line passed to WinGD, the Sulzer–CSSC joint venture. The mechanical Sulzer RTA series (RTA38–RTA96C, including the U and T high-output variants) powered a generation of merchant ships. The common-rail RT-flex / RTA-flex replaced the camshaft with an electronically controlled high-pressure rail, and the current X-Series (X35-B–X92-B) carries it forward. We supply spares across all of them.
The single most important question on any Sulzer order is whether the engine is an RTA, an RT-flex or an X-Series. The Sulzer RTA is camshaft-controlled — fuel pump, fuel cam, chain drive and mechanical exhaust-valve gear. The RT-flex / RTA-flex and the WinGD X-Series are electronically controlled, replacing the camshaft with a common-rail supply unit, rail valves, flow-control units (FCU) and hydraulically actuated exhaust valves. Liners, covers, crowns and bearings are broadly common by bore, but injection and actuation parts are entirely different — always give us your exact RTA / RT-flex / X-Series designation.
Alongside the two-strokes, Sulzer’s medium-speed four-stroke engines power gensets and auxiliary sets. The range — Sulzer 20, 26, 32, 34, 46 and 46F, plus the V-versions — is among the most installed auxiliary engines afloat. While this page focuses on the two-stroke mains, we also carry heads, pistons, liners, valves, fuel injection valves, fuel pumps and bearings for these four-strokes.
Bhavnagar sits beside Alang, where hundreds of vessels are dismantled every year — including ships still running ageing Sulzer RTA 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 RTA fuel pumps, chain drives, liners or running gear, this is the fastest source in the world. Browse our reconditioned marine spare parts range, the wider main engine spare parts category, or sister brands like MAN engine spares and Mitsubishi UEC.
Send your Sulzer 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 — cylinder liners are one of our strongest Sulzer lines. We carry original-bore and reconditioned liners for the RTA62 and RTA62U, plus the rest of the RTA range (RTA48, RTA52, RTA58, RTA68, RTA72, RTA84, RTA96C), honed to OEM tolerance with measurement reports. Most legacy RTA liners are recovered and reconditioned beside Alang.
The Sulzer RTA is a camshaft-controlled (mechanical) two-stroke — fuel pump, fuel cam and mechanical exhaust-valve actuation. The RT-flex / RTA-flex and the WinGD X-Series are electronically controlled, replacing the camshaft with a common-rail supply unit, rail valves, flow-control units (FCU) and hydraulically actuated exhaust valves. Liners, crowns and bearings are broadly similar by bore, but the injection and exhaust-valve actuation parts are completely different — always quote your exact RTA, RT-flex or X-Series model.
We cover the full two-stroke range — the current WinGD X-Series (X35-B, X40-B, X52-B, X62-B, X72-B, X82-B, X92-B), the common-rail RT-flex / RTA-flex (RTA-flex52, RTA-flex62, RTA-flex72) and the legacy Sulzer RTA (RTA38 up to RTA96C, including the U, T and -B variants) — 33 models in all. We also supply the four-stroke medium-speed Sulzer 20, 26, 32, 34, 46 and 46F.
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 Sulzer 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 — fuel injection valves, injector nozzles, high-pressure fuel pumps, plungers and barrels for Sulzer RTA engines, plus common-rail supply units, rail valves, flow-control units (FCU) and injection equipment for RT-flex / RTA-flex and X-Series engines, are stocked and bench-tested before dispatch.
Genuine parts come from the original maker (Sulzer / WinGD) 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 Sulzer RTA parts are our specialty. Beside Alang we recover low-hour fuel pumps, chain drives, liners, crowns and running gear from RTA-powered vessels being dismantled, then inspect and certify them. For RTA38, RTA48, RTA52, RTA58, RTA62, RTA68, RTA72, RTA84 and RTA96C engines this is often the fastest source in the world.
Yes — combustion and running-gear spares for the four-stroke medium-speed Sulzer 20, 26, 32, 34, 46 and 46F (and the V-versions), including cylinder heads, pistons, liners, inlet/exhaust valves, 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 overhaul 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 — decarbonising, top-overhaul and major-overhaul kits assembled to your exact RTA, RT-flex / RTA-flex or X-Series model, with liners, piston rings, fuel injection valves, exhaust-valve spindles, stuffing-box rings, gaskets, O-rings and fasteners included.
Request a quote · reply within the hour
Emergency Sulzer failure, dry-dock overhaul, 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 Sulzer spares, worldwide in 24–48 hours.
India 
Bhavnagar 
UAE 
Singapore 
Greece 
Turkey 
Egypt 
China 
South Korea 
Japan 
Philippines 
Netherlands 
Norway