Genuine & OEM Premium Marine Engine Valve Spindles for 2-Stroke Large Bore Engines.

Marine Valve Spindles

Exhaust Valve Spindles for 2-Stroke Marine Engines

Replacement exhaust valve spindles for MC, MC-C, ME-B, ME-C, RTA, RT-flex and X-series engines

Alfa Marine Solutions supplies replacement exhaust valve spindles for 2-stroke large bore marine engines of the MC, MC-C, ME-B, ME-C, RTA, RT-flex and X series. Valve spindles we supply are available in Nimonic and Dura-type versions. We support shipowners, technical managers and ship repair yards worldwide, for planned overhauls, dry-docking and urgent deliveries to vessels in port.

Why the exhaust valve spindle matters

The exhaust valve spindle operates in one of the harshest areas of a 2-stroke engine: high exhaust gas temperatures, corrosive combustion products and constant impact on the valve seat. A worn or burnt spindle causes loss of compression, higher fuel consumption and the risk of unplanned downtime. A correctly made replacement spindle restores sealing and extends the time between exhaust valve overhauls.

Exhaust valve spindles for MC, MC-C, ME-B and ME-C engines

  • MC / MC-C: L35MC, S35MC, S35MC-C, L42MC, S42MC, S46MC-C, L50MC, S50MC, S50MC-C, L60MC, S60MC, S60MC-C, L70MC, S70MC, S70MC-C
  • ME-B: S35ME-B, S40ME-B, S42ME-B, S46ME-B, S50ME-B
  • ME-C: S50ME-C, G50ME-C, S60ME-C, G60ME-C, S65ME-C, S70ME-C, G70ME-C

Exhaust valve spindles for RTA, RT-flex and X-series engines

  • RTA: RTA48, RTA62, RTA72
  • RT-flex: RT-flex48, RT-flex50, RT-flex58, RT-flex68, RT-flex82
  • X-series: X62, X72, X82 (dual fuel)

Your engine type is not listed? Send us the engine type and plate/item number and we will check availability.

Nimonic and Dura-type spindles

  • Nimonic spindles: nickel-based superalloy construction with high resistance to hot corrosion and high exhaust gas temperatures.
  • Dura-type spindles: designed for extended time between overhauls.

[OEM parts available for selected engine types on request.]

Related 2-stroke engine spare parts

For complete exhaust valve and cylinder unit overhauls we also supply:

Why Alfa Marine Solutions

Our technical sales team identifies the correct spindle from the engine type and plate/item number, confirms availability quickly and delivers to the vessel or yard, whether you are planning a routine overhaul or handling an urgent breakdown.

Contact Us for Valve Spindle Inquiries

Whenever your vessel requires valve spindles, valve seats, or other critical 2-stroke main engine spare parts, send your inquiry directly to our technical team. Enjoy engine parts delivered straight to your deck!