[Dave at Pelican Parts]

The following is not an exhaustive list of part numbers, however it is a list of the replacement part numbers available at a certain date, probably about 3 years ago.

022 905 205 P (from beginning of W through W 0129581 ; from beginning of EA through EA 0098793 ; from beginning of EB through EB 0010020 ) 914-1.7
022 905 205 H (from W 0057460 through W 0250000) 914-1.7

021 905 205 S (from EC 0000001 through EC 0037551) 914-1.8
022 905 205 AB(from EC 0037552 through end of EC) 914-1.8

039 905 205 A (all GA & GB engines) 914-2.0
039 905 205 B (all GC engines) 914-2.0


The factory manuals give us some idea of what the original part numbers probably were.
022 905 205 D (up through W 0007333) 914-1.7
022 905 205 E (from W 0007334 through W 0039125) 914-1.7
022 905 205 F (from W 0039126 through end) 914-1.7
022 905 205 J (type not listed, but probably 1.7)
022 205 905 A (type not listed, but probably 1.7)
022 205 905 B (type not listed, but probably 1.7)

022 905 205 AA (with rev-limiter) 914-1.8
022 905 205 AB (no rev-limiter) 914-1.8

039 905 205 (no suffix; 1973 model year) 914-2.0
039 905 205 A (all 74+) 914-2.0
039 905 205 B (1975+; California cars only) 914-2.0


You can see we have slightly different information from different sources...

--DD