Home › Forum › Ask A Member › 1956 RD-18 Johnson High Speed jets › Reply To: 1956 RD-18 Johnson High Speed jets
July 20, 2022 at 12:36 pm
#263291
43-123 is superseded by 307583. Sierra also has them in 10-packs under their own number. Available everywhere. Sorry’ I didn’t follow through on the other numbers you mentioned.