2937 TRANSMISSION GEARS & SHAFTS FOR 4SPEED BIG TWIN TRANSMISSION PARTS 4 SPEED BIGTWIN 7Ȫ$Ȧ6ȥ,ȫ6ȡ2Ȧ Stock replacement parts for the 4 speed and 3-and-reverse transmission as used in 1936 thru 1986 Big Twin models. As always, we show OEM part numbers for reference only. The actual OEM part might have been slightly different or could have included a bushing, washer or retaining ring where the replacement is just the main part. Replacements however can be used for the years as indicated but please note that after all these years your transmission may no longer be completely like stock. All parts are sold each unless differently indicated. Pos. ZPN Description Years 1 742511 Screw, socket head, #10-24x3/4", 1984-1986 10-pack 2 780062 Screw, oval head, 1/4-24x13/16", 1941-1979 Colony 2 - Screw, Pozidriv pan head, 1980 1/4-20x3/4" 2 742552 Screw, socket head, 1/4-24x5/8", 1981-1986 10-pack 3 782450 Lockwasher, #6, internal tooth, 1941-1964 100-pack 4 292015 Nut, 1/2-20x7/32x7/8 hex 1941-1979 5 231456 Mainshaft needle bearing Late 1977-1981 5 231457 Mainshaft needle bearing 1982-1986 6 231420 Mainshaft ball bearing 1941-1986 7 234638 Bearing roller, main drive gear 1941-Early 1977 & countershaft, standard, .125"x.615", set of 88 7 234639 Bearing roller, main drive 1941-Early 1977 gear & countershaft, +.0004", .125"x.6154", set of 88 7 234640 Bearing roller, main drive 1941-Early 1977 gear & countershaft, +.0008", .125"x.6158", set of 88 7 234641 Bearing roller, main drive 1941-Early 1977 gear & countershaft, +.0010", .125"x.6160", set of 88 8 744393 O-ring, countershaft 1965-1986 8 700004 O-ring, countershaft, Eastern, 1965-1986 10-pack 8 231170 O-ring, countershaft, Genuine 1965-1986 James, 25-pack OEM 857 2333W 2607 3789A 7112 7911 8905 8906 9020 9084 9085 Pos. ZPN Description 8A 237060 O-ring, mainshaft, Genuine James, 10-pack 8A 237061 O-ring, mainshaft, Genuine James, each 9 231181 Oil seal, metal housing, each 9 700018 Oil seal, metal housing, Athena, 5-pack 9 740391 Oil seal, metal housing, Genuine James, 5-pack 9 022361 Oil seal, Genuine Zodiac, each 9 237049 Oil seal, Genuine James, 5-pack 9 237050 Oil seal, Cometic, 5-pack 10 231155 Gasket & seal set, Genuine James 9086 10 700263 Oil seal set, Athena 10 700264 Gasket set, Athena 10 700265 Gasket set, Athena - 11 744396 Tab washer, kickstarter gear 11 292014 Tab washer, kickstarter gear, 10-pack 11115 11 - Spacer, reverse idler gear 11115 12 - Refer to Final Drive & Sprocket section 11115 13 234354 Inner race mainshaft support bearing 14 231584 Mainshaft, 11.730" length, Genuine Zodiac www.zodiac.nl Years 1985 FXST, 1985-1986 FXWG, FXSB, FXEF 1985 FXST, 1985-1986 FXWG, FXSB, FXEF Late 1981-1986 Late 1981-1986 OEM 11166 11166 12013A 12013A Late 1981-1986 12013A Late 1966-Early 1981 Late 1966-Early 1981 Late 1966-Early 1981 1941-1986 1941-1969 1965-1979 1980-1986 1941-1979 1941-1979 12022 12022 12022 33031-36, 33031-65A, 33031-80 - 33031-65A 33031-80 33082-16 33082-16 Late 1964-1968 33237-64 1941-1979 35203-36 Late 1984-1986 34090-84 1941-1965 35040-50 CONTINUED ON NEXT PAGE kk 09-009
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