| N 330 | NY 16 | N 18 | N 21 | N 280 | M 200 |
| M 220 | S 165 | S 185 | LYA - STP | EY18(A)L | EY22 |
| NHL |
| DK28 | DK20 | DL20 | DL26 | DKB20 | DC17 |
| DK20/E | DK28/E | DE-23 |
| M528 | M628 | TBD226-6 | TBD234 | TBD444 | TBD645 |
| PC 2.2 | PC 2.5 | PC 2.6 |
| G 300 | G 320 |
| M 32 / C | M 25 / C | M 20 / C | M 43 / C | 451 / C / AK | 452 / C / AK |
| 453 / C / AK | 601 / C |
| 320ZCD |
| G300 | GN320 |
| AL/ASL SERIES | ZA/ZAV SERIES | ZAL/ZAV SERIES | S SERIES | RT SERIES | RT FLEX |
| UEC33LA/LS | UEC37LA/LS | UEC45LA/LS | UEC50LA/LS | UEC52LA/LS | UEC60LA/LS |
| UEC33LA/LS | UEC37LA/LS | UEC45LA/LS | UEC50LA/LS | UEC52LA/LS | UEC60LA/LS |
| L20 SERIES | L22 SERIES | L25 SERIES | L28 SERIES | L31 SERIES | L34 SERIES |
| L40 SERIES | LF20 | M22T | M24GT | M26 SERIES | M28 SERIES |
| M31 SERIES | M33 SERIES | MF31 | MG28BXB | MG30GT | NSC-M |
| NSD-G |
| LH31RG | LH41 LAG | EL30 | EL32 | EL35 | EL40 |
| EL44 | ELS35 | ELS44 |
| 6M26.2 |
| 6K 45GF | 6K 84EF |
| 6BDXC | 6DXC | 6DXS | 6MDX | 6MDXC | 6MDXS |
| 8MDXC | 8DXC | 8MDXC | DXC | MDX | MDXC |
| 12VDZC | 16DZC | 17VDZC | 6BDZC | 6DZC-1000 | 6MDZC |
| 6MDZC-900-150A | 8MDZC | 8DZC | 8MDZC | DZC | |
| 8DIC | ABC | 8EDZ |
| C25-33 | B32-40 | B33-45 |
| H 17/28 | H 21/32 | H 25/33 | H 32/40 |
| PBC S12 C | PBCS 37 D | S37G - PHBC |
| F20 |
| MB 275 | MB430 | EMK1 | EMK2 | EMK2 V | MB190 |
| F216V-D825 | F316V | F38A | F 28V-D825 | SF16RS | SF13RS |
| SF15RS-F | SF16RS-F |
| DRO SERIES | TM SERIES |
| NVD48 | VDS48/42 |
| KT(A)50 | NT855 | 6BT5.9 | L345 | NH220 | KT(A)38 |
| QSK19 | 6CT | M11 | VT28 | KTA19 | 4BT |
| 6CT8.3 | N14 | ISM11 | NTA855 | 6BT | L10 |
| NH250 | QSM11 |
The piston is subject to the high temperatures in the combustion space and the surface is liable to be eroded/burnt away. For this reason the material from which the crown is made must be able to maintain its strength and resist corrosion at high temperatures. Steel, alloyed with chromium and molybdenum is used, and some pistons have a special alloy welded onto the hottest part of the crown to try and reduce the erosion caused by the burning fuel. Fort his reason piston an very important part of engine YAF DIESEL offer piston materials and specsare according to engine manufacturers given details and if customer request we can offer class certificate.
Yaf Diesel able to offer liner for 2 stroke and 4 stroke engine most of them with class certificated and upon customer request also can offer geniune liner from engine builders.
Yaf Diesel has stock most major marine engine injection equipment parts as injector nozzle, barrel plunger and high pressure fuel pump for 2 stroke and 4 stroke engine.
Yaf Diesel offer 2 stroke and 4 stroke engine cylinder cover with most major class certificated. Also able to offer a wide of range exhaust and inlet valve, exhaust and inlet valve seat, valve spring, valve rotator all of them from well known manufactures parts.
Yaf Diesel has stock most of 2 stroke and 4 stroke engine piston ring from Japanese and European well known piston ring factory from Turkiye and China stock.