#810-025 Fitment:
Excludes Lobito Model 19/32 & Pursang Model 11
All 4-Speeds.
#11.10-025 Fitment:
Pursang Model 11
#30.10-025 Fitment:
Lobito Model 54, 59
Sherpa S Model 30
Tiron Model 73
#42.10-025 Fitment:
Alpina Model 85, 98, 115, 137, 165, 187, 212
Campera Model 28, 36
Lobito Model 76, 83, 84
Matador Model 26, 75
Metralla Model 23, IT-23 "El Tigre"
Pursang Model 42, 48, 68 to eng. #68.01.858, 89, 100, 101, 102, 117
Sherpa S Model 44, 45, 66, 67
Sherpa T Model 27, 49, 80, 91, 124, 150, 158, 182, 190
#43.10-025 Fitment:
Alpina Model 97
Lobito Model 53, 62, 74
Sherpa S Model 43, 63
#75.10-025 Fitment:
Astro Model 90, 105
Matador Model 75, 82, 107
Pursang Model 68 from eng. #68.01-859, 86
#87.10-025 Fitment:
Alpina Model 99
Astro Model 106
Pursang Model 87, 104
Sherpa T Model 92, 125, 151
#103.10-025 Fitment:
Astro Model 145
Frontera Model 152, 180
Pursang Model 103, 120, 167, 170, 192, 200
#112.10-025 Fitment:
Astro Model 146
Frontera Model 143
Pursang Model 136, 168, 206, 207
#116.10-025 Fitment:
Alpina Model 116, 138
#121.10-025 Fitment:
Astro Model 123
Pursang Model 121
#159.10-025 Fitment:
Alpina Model 166, 188, 213
Matador Model 140, 210
Sherpa T Model 159, 183, 191, 199
#162.10-025 Fitment:
Pursang Model 162
#193.10-025 Fitment:
Pursang Model 193
#194.10-025 Fitment:
Pursang Model 194
Due to running changes by the Bultaco factory there can and is some overlap on the gaskets.
For example: A Model 75 Matador has the Model 26 barrel stud layout/cylinder + head. The #75.10-025 base gasket does not fit. You need the Model 26 #42.10-025 base gasket.