These OEM cylinder liner seal rings marked 51012010305 and 51012010467 fit MAN TGS, TGX and TGA truck engines perfectly. Made of premium elastic sealing material, it features great heat resistance, ageing resistance and stable sealing performance. It effectively isolates liquid inside the cylinder liner and avoids oil or coolant leakage. Manufactured fully following OEM standards, it is easy to mount and is a reliable replacement part for engine overhaul and daily maintenance.