Genuine Bosch fuel injectors for the BMW M50 — and the definitive upgrade for any M20 engine running tired, decades-old injectors. Updated body and spray pattern over the original units. Genuine Bosch fuel injectors Updated body and spray pattern Direct fitment for BMW M50 engines Recommended upgrade for BMW M20 engines Sold as a set of 6 Replaces BMW part number 13641730060 The injectors we spec for stock and lightly modified M20 builds at BimmerHeads — and a direct replacement for M50 engines.