Diesel and gas engine components


Diesel and Marine Group is one of the largest independent stockists of spare parts for medium-speed diesel engines.

We are agents and/or stockists for many of the leading European diesel engine component manufacturers who also supply many of the better known engine builders, thereby guaranteeing OEM quality.

We supply specific components to a very wide range of engines. These components include:
  • Cylinder head valves, valve guides, valve seats and collets
  • Fuel injection equipment
  • Fuel pipes
  • Bearings
  • Pistons
  • Piston rings
  • Valve rotators, all types including rotocaps, BSR, Turnomats®
  • Springs
  • Cylinder liners and O ring sets
  • Cylinder head gasket sets
  • Cooling water pumps
  • Heat exchangers / charge air coolers / radiators
  • Indicator valve
  • Gas control valves
  • Specialist tools

We also supply a whole array of small components such as gasket sets and sealing rings.



All major components guaranteed for 12 months


£5m product liability insurance

We supply components suitable for* the following engines:*If you are operating your engine under the parameter system, please let us know so that we can discuss your requirement.

Bergen K,  Bergen L,  Bergen B:  B:32:40,  B35:40,  C25:33

L20, 22, 32, and 34SG (including Vasa variants)

Nohab Polar F10, F20, F30 and WN25


RK270, RK215, APC, AP2, AP230, CSV, RK 3C, RK CM, VEB, AR, AT

MB275, K Major, E Series

Paxman Y3J (Valenta)

Allen s12 (2000), Allen S37 (4000)

Z40/48,  ZA40S,  AL25,  ASL25, ATL25, and S20

L16/24, L21/31, L23/30, L28/32, L27/38 and L32/40


DA, LD/LE, Q, JV, SV, and SE

Perkins 4000, suitable for diesel variant of FG Wilson ‘Investor’ range

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