Piston ring
Piston rings are manufactured and classified on the basis of function and usability. The primary usage of the piston ring is to seal the chamber (where the piston is moving), which can be a combustion chamber of a 2 stroke or a 4 stroke engine. Marine engines have three or more types of rings fitted on the circumference of the piston.
Our inventory reserve is synchronized with original technical improvement. We supply original coated?piston rings (especially ALU COAT (TOP RING)) such as DAROS, NPR, PP and so on, suitable for models including MC, MC-C, ME-C, FLEX (RTA48T-B，RT-FLEX50-D，RT-FLEX50-B，FLEX RTA58TB，5RT-FLEX58T-D，RTA48T-B，RTA68T-B etc.),?RTA series, etc.
In addition to the above coated rings, we also stock a certain number of non-coated rings. Non - coated ring special sale, the specific list is as follows：
| No. | Suitable for Model | PART No. | SPECIFICATION | QTY. |
| （1） | S35MC S35MC-C S35MC-MK7 |
90201-0201-060 90201-0201-084 90201-0201-072 |
350*9.5*12.7 | 199 |
| 350*8*12.7 | 596 | |||
| （2） | S35ME-B | 2272-0420-0002-017 | 350*9.5*12.7 (POP) | 197 |
| 350*8*12.7 | 593 | |||
| （3） | S42MC S42MC-C S42MC7-TII |
90201-155-096 90201-155-106 90201-0223-084 |
420*11*14.7 | 147 |
| 420*8*14.7 | 445 | |||
| （4） | S42ME-B | 2272-0420-0002-017 | 420*11*14.7 (POP) | 112 |
| 420*8*14.7 | 329 | |||
| （5） | S46MC | 90201-0204-084 90201-0204-096 90201-0204-106 |
460*12*16.2 | 117 |
| 460*9*16 | 353 | |||
| （6） | S46MC-C S46ME-B8 |
2272-0420-0002 90201-0204-084 POP ：5435765-5.1 |
460*12*16.2 (POP) | 148 |
| 460*9*16 | 456 | |||
| （7） | S50MC S50MC-C S50ME-B |
90201-0202-072 90201-0202-084 90201-0202-096 90201-0204-106 2272-0420-0002-017 |
500*12.5*17.2 | 246 |
| 500*9.5*17.2 | 738 | |||
| （8） | S60MC S60MC-C |
90201-0220-011 | 600*14*20 | 107 |
| 600*11*20 | 329 | |||
| （9） | G60ME-C9.2-TII | 2272-0420-0002-017 | 600*14*20 (Cermet Alu-C Cr GT CPR） |
157 |
| 600*11*20 （2ND/Alu-Coat Cr Compr ring） |
471 | |||
| （10） | S70MC S70MC-C |
90201-181-072 90201-181-084 90201-181-096 |
700*16*23 | 107 |
| 700*12*23 | 326 | |||
| （11） | RTA48T-B | Q34420 Q34421 |
480*15*16 SCP1CC | 56 |
| 480*15*16 SCP1RC | 163 | |||
| （12） | RT-FLEX50-B RT-FLEX50-D |
IF34421 IF34422 IF34423 |
500x15.0x16.5 SCP2CC | 86 |
| 500x15.0x16.5 GTP1CC | 72 | |||
| 500x15.0x16.5 SCP1RC | 93 | |||
| （13） | 5RT-FLEX58T-D FLEX RTA58TB |
OF34420 OF34421 |
580x16.0x19 SCP2CC | 57 |
| 580x16.0x19 SCP1RC | 123 | |||
| 580x16.0x19 SCP1CC | 76 | |||
| （14） | RTA68T-B | Q34408 Q34410 Q34411 Q34412 |
680x18.0x21.5 SCP1CC | 34 |
| 680x18.0x21.5 SCP1RC | 86 | |||
| 680x18.0x21.5 SCP1RC | 63 | |||
| 680x18.0x21.5 K0P P4 | 87 |
