O Ring Dowel Pin Kit 91302 GE0 000 Metal Rubber OE Design for B Series VTEC Cylinder Heads Item Type:ORingPinKitMaterial: Metal + RubberOEM: 91302 GE0 000 (O ring), 94301 08100 (pin) Replace worn out O rings and pinsFitment: For B Series VTEC cylinder heads only. The VTEC dowel pin and o ring are found under the middle camshaft cap. It is also a good idea to replace these parts whenever you replace your camshafts. B-series are DOHC inline four cylinder engines. They were installed on various cars manufactured by car between 1989 and 2001. Although it has many variations, the basic design differs very little between all the B series engines. There are actually only two blocks used for the entire series. The main difference between them is the height of the cover.The B16 engine appeared in 6 different models over the years. To identify any B series engine, have each engine's code etched into the block, under the distributor, next to the transmission. The code is made up of the letter B, followed by two numbers (designating engine displacement) another letter and a final number for European and American engines. Japanese engine specification is usually designated by a four digit alphanumeric designation (no final number). The B-series was replaced in 2003 by the K series which was fitted to almost all car models.