1975-1978 Bus EGR Filter for 1700cc Carbureted engines - OEM Number(s) (021-131-617-A)
1973 and later Air-Cooled Volkswagens used an Exhaust Gas Recirculation (EGR) Filter that can rust out, causing exhaust leaks. Mid America Motorworks offers a US-made replacement EGR filter that is identical to the OEM filter.
Also known under these part numbers: (For reference only)