Bosch Ignition Rotor for Porsche 928 (1978–1984)

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This Bosch ignition rotor is a direct-fit distributor service part for Porsche 928 applications listed in the fitment table below. Bosch has been a global leader in automotive tech nology since 1886, pioneering innovations like electronic fuel injection and oxygen (lambda) sensors that shaped modern engine management. Today, Bosch supplies OEM-quality sensors, engine electronics, ignition components, and braking parts found in vehicles worldwide. Known for precision engineering and reliable performance, Bosch parts are built to factory specifications for dependable fitment and long-term durability.Technical Details Manufacturer part number: 1-234-332-177 Type: Distributor rotor Cross reference: 928-602-904-03 Function: Maintains correct spark transfer inside the distributor Fitment & CompatibilityUse the fitment table below to confirm year and model coverage before ordering. Check trim-specific notes and compare the cleaned manufacturer part number if your car has mid-year changes.If you want a second set of eyes on the fitment, send us your VIN. We have been handling Porsche parts and brake work for over 20 years, and we still treat fitment questions like they matter. Year Make Model Submodel Notes 1970 Mercedes-Benz 280SE 1971 Mercedes-Benz 280SE 1973 Mercedes-Benz 280SE 1972 Mercedes-Benz 280SE 4.5 1972 Mercedes-Benz 280SEL 1973 Mercedes-Benz 280SEL 1970 Mercedes-Benz 300SEL 1971 Mercedes-Benz 300SEL 1972 Mercedes-Benz 300SEL 1973 Mercedes-Benz 300SEL 1972 Mercedes-Benz 350SL 1981 Mercedes-Benz 380SEL 1981 Mercedes-Benz 380SL 1981 Mercedes-Benz 380SLC 1973 Mercedes-Benz 450SE 1974 Mercedes-Benz 450SE 1975 Mercedes-Benz 450SE 1976 Mercedes-Benz 450SE 1973 Mercedes-Benz 450SEL 1974 Mercedes-Benz 450SEL 1975 Mercedes-Benz 450SEL 1976 Mercedes-Benz 450SEL Base 1977 Mercedes-Benz 450SEL Base 1978 Mercedes-Benz 450SEL Base 1979 Mercedes-Benz 450SEL Base 1980 Mercedes-Benz 450SEL Base 1973 Mercedes-Benz 450SL 1974 Mercedes-Benz 450SL 1975 Mercedes-Benz 450SL 1976 Mercedes-Benz 450SL 1977 Mercedes-Benz 450SL 1978 Mercedes-Benz 450SL 1979 Mercedes-Benz 450SL 1980 Mercedes-Benz 450SL 1973 Mercedes-Benz 450SLC 1974 Mercedes-Benz 450SLC 1975 Mercedes-Benz 450SLC 1976 Mercedes-Benz 450SLC 1977 Mercedes-Benz 450SLC 1978 Mercedes-Benz 450SLC 1979 Mercedes-Benz 450SLC 1980 Mercedes-Benz 450SLC 1978 Porsche 928 1979 Porsche 928 1980 Porsche 928 1981 Porsche 928 1982 Porsche 928 1983 Porsche 928 1984 Porsche 928 Show more