Marine Cylinder Heads & Valvetrain Spares

We specialize in the supply of high-integrity Cylinder Heads and complete Valvetrain Assemblies for the world’s most demanding marine engines. The cylinder head is a complex pressure vessel subject to extreme thermal cycling and mechanical stress. Our heads are cast and machined to exacting OEM specifications to ensure perfect sealing and optimal combustion efficiency.

  • Thermal Stress Resilience: Precision-engineered water jackets and cooling passages for superior heat dissipation.
  • Superior Sealing Integrity: High-grade O-rings, gaskets, and specialized studs/nuts designed for high-torque applications.
  • Ready-to-Install Assemblies: We offer fully assembled 4-stroke cylinder heads complete with valves, springs, and guides to minimize vessel downtime.

Product Description

We provide comprehensive support for both 2-stroke propulsion plants and 4-stroke auxiliary generators. From massive main engine cylinder covers to intricate valvetrain components like rocker arms, valve guides, and high-tension springs, Sourcing Marine delivers the precision parts needed to maintain your engine’s performance and safety.

Technical Inventory & Component Support

1. Solutions for 2-Stroke Main Engines

Critical support for large-bore propulsion systems, ensuring structural integrity at the top of the combustion chamber.

Available Components: Cylinder Heads (Covers), Cooling Water Jackets, High-Tensile Studs and Nuts, and specialized Sealing O-Rings.

Supported Series:

  • MAN B&W:
    • Electronic Control (ME): G95ME-C through S30ME-C (Full G/S/ME-B series support).
    • Mechanical (MC/MC-C): S90MC-C to S35MC-C, K98MC-C to K80MC-C.
    • Legacy Series: L90MC to L35MC, and the full L/K-GF(CA) and GBE/GB series.
  • WARTSILA-SULZER:
    • RT-flex (Common Rail): 96, 82, 68, 60C, 58T, 50, 48T.
    • RTA Series: RTA84T-B, 68T-B, RTA96C, RTA84, RTA72U, RTA62, RTA52, RTA48.
    • Classic Series: RLA, RLB, RND/M, and RD series.
  • MITSUBISHI:
    • UEC Models: UEC60LSII, UEC50LSII, UEC43LSII, UEC37LSII, LS, LA, HA, and H-series.

2. Solutions for 4-Stroke Auxiliary & Medium-Speed Engines

A complete ecosystem of valvetrain parts for generator sets and medium-speed units.

Available Components: Cylinder Head Castings, Intake & Exhaust Valves, Valve Seats, Valve Springs, Valve Guides, Rocker Arm Assemblies, Support Brackets, Indicator Valves, Safety Valves, and full O-ring/Gasket kits.

Supported Series:

  • MAN B&W: L32/40, V32/40, L28/32, L27/38, L23/30H, L21/31, L16/24, L20/27.
  • WARTSILA-SULZER: W4L20, L20, R22HF-D, R32, L46, S20, ALT25/30, AL25/30.
  • YANMAR (Japan): EY28, EY26, EY21, EY18, N330, N260, N21, N18, M200, T240, Z280, S165, S185, KDL/KL series.
  • DAIHATSU (Japan): DK-36 to DK-20, DC-17, DE-18, DL-32 to DL-19, DS-32 to DS-16, PS-series (PKTB/PS-20/22/26/30).
  • MAK & PIELSTICK: M32C, M25, M20, M601AK, M551AK; PC2-5, PC2-6.

Why Source Cylinder Heads from Sourcing Marine?

  1. Pressure Tested: Every cylinder head undergoes rigorous hydraulic pressure testing to ensure zero leaks in the cooling or combustion spaces.
  2. Strategic Emergency Stock: We maintain a deep inventory of heads and valvetrain kits for Yanmar N21/N18 and Daihatsu DK-20 for immediate air-freight dispatch.
  3. Comprehensive Hardware: We don’t just supply the head; we provide the exact studs, nuts, and gaskets required for a secure, professional installation.

Get Free Quote

To help us serve you faster, please include the IMO Number, Engine Model, or Part Number in your message.

    Have files to send? Please email us: [email protected]