Akasaka AH-series medium-speed four-stroke marine engine - spare parts supplier

Akasaka · A series · AH series · Four-stroke

Akasaka Engine Spare Parts. In 48 hours.

Genuine, OEM and reconditioned spares for Akasaka-Akasaka four-stroke main engines — the Akasaka AH series, the common-rail A series / AH series and the Akasaka AH series — sourced beside Alang, shipped to India, UAE, Singapore & worldwide.

200+
Models indexed
3
Series: A series / AH series / X
24–48 hr
Emergency dispatch
70%
Saving on reconditioned
SCROLL

A century of diesel

From Yaizu, Japan
to Akasaka Diesel.

1910

Akasaka Tekko

Akasaka Iron Works is founded in Yaizu, Shizuoka, Japan.

1920s

First marine diesel

Akasaka begins building marine diesel engines for the Japanese fleet.

1960s

The A series

Akasaka develops its medium-speed A-series four-stroke marine engines.

2000s

The AH series

Akasaka introduces the AH-series — its modern medium-speed four-stroke range.

Today

Akasaka today

Wattmare keeps every Akasaka A and AH engine running with genuine, OEM-equivalent and Alang-reconditioned spares.

Who is Akasaka

A Japanese marine-power
major, Akasaka lineage.

Akasaka Diesel (Akasaka Tekko), of Yaizu, Japan, builds the A-series and AH-series medium-speed four-stroke marine engines for ship propulsion and auxiliary power across the world fleet.

A single fleet can run the classic A series (A31, A34, A37, A41) or the modern AH series (AH30, AH36, AH38, AH40) — and Wattmare supplies genuine, OEM-equivalent and Alang-reconditioned spares (liners, pistons, heads, connecting rods, injectors and bearings) across every Akasaka bore.

Reconditioned Akasaka-Akasaka connecting rod, machined and inspected in India

By the numbers

Akasaka parts,
at depth.

0+
Models indexed
0
Model pages live
0
Wear-part types
0 hr
Emergency dispatch
0%
Max reconditioned saving

Parts we supply

Every Akasaka-Akasaka
wear part, in reach.

01

Cylinder Liners

Original-bore & reconditioned liners for the full the A and AH range and AH series range, honed to OEM tolerance with measurement reports.

02

Cylinder Covers

Surface-ground four-stroke cylinder covers with bushings, studs and gasket kits across all AH series and AH series bores.

03

Piston Crowns & Skirts

Forged steel crowns and skirts for all the A and AH range and AH series bores — reconditioned crowns dimensionally verified.

04

Piston Rods

Piston rods with renewed running surfaces, matched to your exact cylinder unit and crosshead.

05

Piston Rings

Compression and oil-control ring sets — pre-profiled and chrome-ceramic rings to Akasaka-Akasaka spec.

06

Fuel Injection Valves

Fuel injection valves, injector nozzles and atomisers for AH series and AH series engines, bench-tested before dispatch.

07

Fuel Pumps

High-pressure fuel pumps, plungers and barrels for AH series, plus common-rail supply units and flow-control valves for AH series.

08

Exhaust Valve & Cage

Complete exhaust valves — Nimonic spindles, valve seats, cages, bottom pieces and air-spring components.

09

Bearings

Main, crankpin & crosshead white-metal, trimetal and bimetal shells with material test certificates.

10

Stuffing Box

Housings, scraper and sealing ring sets for the piston rod — a key AH series and AH series overhaul item.

11

AH series Common-Rail Unit

Rail valves, flow-control units (FCU), injection control units and supply-unit parts for A series / AH series engines.

12

Chain & Gear Drive

Camshaft chain-drive links, tighteners, sprockets and gear-drive parts for Akasaka AH series engines.

13

Telescopic Pipe

Telescopic piston-cooling pipes and guide assemblies feeding oil to the crosshead and piston.

14

Starting Air Valves

Cylinder and main starting-air valves, overhauled and pressure-tested for four-stroke engines.

15

Gasket & Seal Kits

Full sealing kits, cooling-jacket O-rings and high-temperature gaskets per engine model.

16

Studs, Nuts & Fasteners

High-tensile cylinder-cover, tie-rod and main-bearing studs and hydraulic nuts.

Models & specifications

Akasaka-Akasaka models
we stock parts for.

All 33 Akasaka-Akasaka four-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.

Legacy · DM (recon)⭐ Alang reconditioned

33 Akasaka-Akasaka four-stroke models indexed — genuine, OEM-equivalent & Alang-reconditioned. Send your exact A series / AH series / AH series designation and we’ll match the part.

Which part is right?

Genuine, OEM-equivalent
or reconditioned.

Genuine Akasaka

Original maker
  • Price Highest
  • Lead time Days–weeks
  • Warranty OEM
  • Docs Full certificates
  • Best for Newbuild / class

OEM-equivalent

Quality aftermarket
  • Price 30–50% less
  • Lead time Days
  • Warranty Supplier
  • Docs Material certs
  • Best for Planned maint.

Reconditioned

Low-hour, ex-Alang
  • Price Up to 70% less
  • Lead time 24–48 hrs
  • Warranty 30-day, backed
  • Docs Report + photos
  • Best for Legacy AH series & emergencies

Overhaul & repair kits

Akasaka overhaul kits,
assembled to your model.

Send your exact the A and AH range / AH series or AH 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.

Akasaka overhaul kit parts - pistons, liners and rings
Kit 01

Decarbonising kit

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.

Kit 02

Top-overhaul kit

Cylinder liner, piston rings, piston-crown inspection set, fuel injection valves, exhaust-valve spindle & seat and stuffing-box sealing rings.

Kit 03

Major-overhaul kit

Full running gear — liners, crowns, rods, main / crankpin / crosshead bearings, fuel pumps or common-rail parts and complete seal and fastener sets.

Akasaka-Akasaka AH series reconditioned parts beside Alang

Inside the stockyard · 01

Akasaka AH series.

The camshaft-controlled A31 through AH40, including the high-output range — liners, covers, piston crowns, fuel pumps, chain drives and bearings, genuine and reconditioned beside Alang.

Akasaka AH series common-rail injection parts

Inside the stockyard · 02

Akasaka A series.

The classic A31, A34, A37 and A41 — running gear, heads, valves and fuel equipment for propulsion and auxiliaries.

Akasaka A-series running-gear parts

Inside the stockyard · 03

Akasaka AH series.

The classic Akasaka A series — cylinder heads, pistons, inlet and exhaust valves, fuel pumps and bearings for propulsion and auxiliary sets.

Akasaka parts dispatched from India in 48 hours

Inside the stockyard · 04

Sourced in 48 hours.

Beside the world’s largest ship-recycling yard, we recover low-hour Akasaka-Akasaka parts no distributor stocks — documented, packed and airborne to your port.

Why Wattmare for Akasaka

Vessel down?
Airborne in 48 hours.

01

Alang sourcing

Direct access to genuine, low-hour Akasaka-Akasaka AH series and AH series parts no distributor still stocks — 30–50% below European prices.

02

48-hour emergency

One WhatsApp, one photo. We confirm stock, document, pack and fly it to your port — day or night.

03

AH series & AH series specialists

From obsolete Akasaka AH series fuel pumps and chain drives to AH series common-rail units — we know the difference and stock both.

04

Class-documented

Material certificates on genuine parts; inspection and measurement reports with photos on reconditioned.

How we source & recondition

From Alang to your
engine room.

Step 01

Source from Alang

Low-hour Akasaka-Akasaka parts recovered from vessels at the world’s largest ship-recycling yard.

Step 02

Inspect & measure

Every part is dimensionally checked against OEM drawings and Akasaka-Akasaka tolerance limits.

Step 03

NDT & pressure test

Crack-detection, hardness and pressure testing on all critical liners, crowns, valves and bearings.

Step 04

Certify & dispatch

Inspection report, photos and a 30-day warranty — packed and air-freighted worldwide in 24–48 hours.

Where we deliver

Akasaka parts to
every major port.

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 to Akasaka
spare part.

SymptomLikely Akasaka-Akasaka parts to inspect
Loss of compression or power on one unitCylinder liner, piston rings, piston crown
High exhaust temperature on one cylinderFuel injection valve / nozzle, exhaust valve spindle
Knocking or pounding from the crankcaseMain, crankpin or crosshead bearings
Excessive cylinder-oil consumptionLiner wear, piston rings, stuffing-box rings
Difficult or failed startingStarting air valve, fuel pump (plunger / barrel) or rail valve
Black or smoky exhaustFuel valve nozzles, slide valves, turbocharger interface
Oil leak at the piston-rod glandStuffing box scraper and sealing ring set
Water in the combustion spaceCylinder cover, cooling-jacket O-rings, liner

Compare the marques

Akasaka-Akasaka vs MAN B&W
vs Mitsubishi UEC.

Run a mixed fleet? We supply spare parts across all three of the great medium-speed four-stroke marques — here’s how they compare and where each one fits.

Akasaka / Akasaka

the A and AH range
  • Engines the A and AH range, W-X
  • Era 1982–present
  • Our depth 33 models
  • Strength Common-rail electronic
  • This page Akasaka ★

MAN B&W

Most-installed four-stroke
  • Engines MC, MC-C, ME-C/B/GI
  • Era 1980–present
  • Our depth 200+ models
  • Strength Largest installed base
  • Sister page Available
MAN B&W parts →

Mitsubishi UEC

Japanese four-stroke
  • Engines UEC, UEC-LS, UEC-Eco
  • Era Legacy — present
  • Our depth Reconditioned ex-Alang
  • Strength Obsolete-part sourcing
  • Sister page Available
Mitsubishi parts →

The complete guide

Akasaka engine spare parts, explained

Wattmare is a specialist Akasaka 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 Akasaka-Akasaka four-stroke marine main engine, dispatched worldwide in 24–48 hours.

The Akasaka-Akasaka lineage

The four-stroke engines on this page are built by Akasaka Diesel (Akasaka Tekko) of Yaizu, Japan, a marine-engine maker since 1910. The A-series and AH-series power ship propulsion and auxiliary sets worldwide. We supply spares across all of them.

AH series versus AH series versus AH series

The single most important question on any Akasaka-Akasaka order is whether the engine is an AH series, an AH series or an AH series. The Akasaka AH series is camshaft-controlled — fuel pump, fuel cam, chain drive and mechanical exhaust-valve gear. The A series / AH series and the Akasaka AH 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 A series / AH series / AH series designation.

Common Akasaka wear parts we stock

For every Akasaka A and AH bore we stock cylinder liners, cylinder heads, piston crowns and skirts, piston rings, connecting-rod and main bearings, fuel injectors, fuel pumps, inlet and exhaust valves, camshaft parts and turbocharger spares — genuine, OEM-equivalent and Alang-reconditioned.

The Alang advantage for legacy AH series parts

Bhavnagar sits beside Alang, where hundreds of vessels are dismantled every year — including ships still running ageing Akasaka AH series four-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 AH series 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.

How to order and what to expect

Send your Akasaka 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

Akasaka parts,
answered.

Do you supply Akasaka AH series cylinder liners?

Yes — cylinder liners are one of our strongest Akasaka-Akasaka lines. We carry original-bore and reconditioned liners for the AH series and AH series, plus the rest of the AH series range (A31 to AH40), honed to OEM tolerance with measurement reports. Most legacy AH series liners are recovered and reconditioned beside Alang.

What is the difference between Akasaka the A and AH range and AH series parts?

The Akasaka AH series is a camshaft-controlled (mechanical) four-stroke — fuel pump, fuel cam and mechanical exhaust-valve actuation. The A series / AH series and the Akasaka AH 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 the A and AH range or AH series model.

Which Akasaka engine models do you cover?

We cover the full Akasaka range — the A series (A31, A34, A37, A41, A45) and the AH series (AH30, AH36, AH38, AH40) — every Akasaka bore.

Are reconditioned Akasaka parts class-approved?

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 Akasaka parts carry full material and test certificates.

How fast can you deliver Akasaka parts to Dubai?

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.

Can you supply Akasaka fuel injection valves and fuel pumps?

Yes — fuel injection valves, injector nozzles, high-pressure fuel pumps, plungers and barrels for Akasaka AH series engines, plus common-rail supply units, rail valves, flow-control units (FCU) and injection equipment for A series / AH series and AH series engines, are stocked and bench-tested before dispatch.

What is the difference between genuine, OEM-equivalent and reconditioned parts?

Genuine parts come from the original maker (Akasaka / Akasaka) 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.

Do you supply obsolete Akasaka AH series parts no longer stocked by distributors?

Yes — obsolete Akasaka AH series parts are our specialty. Beside Alang we recover low-hour fuel pumps, chain drives, liners, crowns and running gear from AH series-powered vessels being dismantled, then inspect and certify them. For the A and AH range and AH series engines this is often the fastest source in the world.

Do you supply Akasaka turbocharger and running-gear spares?

Yes — turbocharger spares, fuel injectors, pumps, camshaft parts, bearings and complete running gear for the Akasaka A and AH series, genuine and Alang-reconditioned.

How do I get a price for a Akasaka spare part?

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.

Where do you ship Akasaka parts and how are they packed?

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.

Can you supply complete Akasaka overhaul kits?

Yes — decarbonising, top-overhaul and major-overhaul kits assembled to your exact the A and AH range / AH series or AH series model, with liners, piston rings, fuel injection valves, exhaust-valve spindles, stuffing-box rings, gaskets, O-rings and fasteners included.

Akasaka engine room - request a spare parts quote

Request a quote · reply within the hour

One message
away.

Emergency Akasaka 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 Akasaka-Akasaka spares, worldwide in 24–48 hours.

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