Available here is one new V-Belt to fit your alternator, fan and crank shaft pulley.
Fits Pontiac vehicles listed in the compatibility below:
Bonneville
1973 8 Cylinders S 6.6L 4BL OHV (1418301)
8 Cylinders W 7.5L 4BL OHV (1418302)
1974 8 Cylinders T 6.6L 4BL OHV (1397406)
8 Cylinders Y 7.5L 4BL OHV (1397405)
1975 8 Cylinders S 6.6L 4BL OHV (1377101)
8 Cylinders W 7.5L 4BL OHV (1377102)
1976 8 Cylinders W 7.5L 4BL OHV (1356204)
8 Cylinders Z 6.6L 4BL OHV (1356203)
1977 8 Cylinders P 5.7L 4BL OHV (1335302)
8 Cylinders Z 6.6L 4BL OHV (1335304)
1978 8 Cylinders K 6.6L 4BL OHV (1314706)
8 Cylinders R 5.7L 4BL OHV (1314703)
1979 8 Cylinders K 6.6L 4BL OHV (1293605)
8 Cylinders R 5.7L 4BL OHV (1293603)
1981 8 Cylinders Y 5.0L 4BL OHV (1250604)
Catalina
1973 8 Cylinders N 5.7L 2BL OHV (1418406)
8 Cylinders S 6.6L 4BL OHV (1418401)
8 Cylinders Y 7.5L 4BL OHV (1418408)
1974 8 Cylinders T 6.6L 4BL OHV (1397506)
8 Cylinders Y 7.5L 4BL OHV (1397505)
1975 8 Cylinders S 6.6L 4BL OHV (1377201)
8 Cylinders W 7.5L 4BL OHV (1377202)
1976 8 Cylinders M 5.7L Carburetor OHV (1356301)
8 Cylinders N 6.6L 2BL OHV (1356302)
8 Cylinders W 7.5L 4BL OHV (1356305)
1977 8 Cylinders P 5.7L 4BL OHV (1335404)
8 Cylinders Z 6.6L 4BL OHV (1335406)
1978 8 Cylinders R 5.7L 4BL OHV (1314803)
8 Cylinders Z 6.6L 4BL OHV (1314805)
1979 8 Cylinders K 6.6L 4BL OHV (1293706)
8 Cylinders R 5.7L 4BL OHV (1293704)
1981 8 Cylinders Y 5.0L 4BL OHV (1250703)
Firebird
1970 8 Cylinders 5.7L 2BL OHV (1481903)
8 Cylinders 6.6L 2BL OHV (1481904)
1973 8 Cylinders N 5.7L 2BL OHV (1418509)
8 Cylinders T 6.6L 4BL OHV (1418505)
8 Cylinders Y 7.5L 4BL OHV (1418508)
1974 8 Cylinders N 5.7L 2BL OHV (1397606)
8 Cylinders P 6.6L 2BL OHV (1397604)
8 Cylinders Y 7.5L 4BL OHV (1397608)
1975 8 Cylinders M 5.7L Carburetor OHV (1377303)
8 Cylinders S 6.6L 4BL OHV (1377302)
1976 8 Cylinders P 5.7L 4BL OHV (1356403)
8 Cylinders Z 6.6L 4BL OHV (1356404)
1977 8 Cylinders P 5.7L 4BL OHV (1335504)
8 Cylinders Z 6.6L 4BL OHV (1335506)
1978 8 Cylinders Z 6.6L 4BL OHV (1314904)
1979 8 Cylinders Z 6.6L 4BL OHV (1293806)
1982 6 Cylinders 1 2.8L 2BL OHV (1230502)
1983 4 Cylinders 2 2.5L TBI OHV (1208701)
6 Cylinders 1 2.8L 2BL OHV (1208703)
6 Cylinders L 2.8L 2BL OHV HP (1208702)
1984 4 Cylinders 2 2.5L TBI OHV (1185501)
6 Cylinders 1 2.8L 2BL OHV (1185502)
1985 4 Cylinders 2 2.5L TBI OHV (1161401)
Grand Am
1973 8 Cylinders M 5.7L Carburetor OHV (2560101)
8 Cylinders P 6.6L 2BL OHV (2560104)
8 Cylinders X 7.5L 4BL OHV HP (2560102)
1975 8 Cylinders H 5.7L 2BL OHV (1377403)
8 Cylinders S 6.6L 4BL OHV (1377401)
8 Cylinders W 7.5L 4BL OHV (1377402)
Grand LeMans
1975 8 Cylinders E 5.7L 4BL OHV (2560004)
8 Cylinders S 6.6L 4BL OHV (2560005)
8 Cylinders W 7.5L 4BL OHV (2560006)
1976 8 Cylinders P 5.7L 4BL OHV (1708106)
8 Cylinders Z 6.6L 4BL OHV (1708103)
8 Cylinders W 7.5L 4BL OHV (1708104)
1977 8 Cylinders P 5.7L 4BL OHV (1704106)
8 Cylinders Z 6.6L 4BL OHV (1704103)
Grand Prix
1973 8 Cylinders T 6.6L 4BL OHV (1418703)
8 Cylinders W 7.5L 4BL OHV (1418702)
1974 8 Cylinders T 6.6L 4BL OHV (1397803)
8 Cylinders Y 7.5L 4BL OHV (1397802)
1975 8 Cylinders S 6.6L 4BL OHV (1377501)
8 Cylinders W 7.5L 4BL OHV (1377502)
1976 8 Cylinders N 6.6L 2BL OHV (1356503)
8 Cylinders P 5.7L 4BL OHV (1356502)
8 Cylinders W 7.5L 4BL OHV (1356505)
1977 8 Cylinders P 5.7L 4BL OHV (1335602)
8 Cylinders Z 6.6L 4BL OHV (1335604)
Grand Safari (Station Wagon)
1973 8 Cylinders S 6.6L 4BL OHV (1721301)
8 Cylinders W 7.5L 4BL OHV (1721302)
1974 8 Cylinders S 6.6L 4BL OHV (1716602)
8 Cylinders W 7.5L 4BL OHV (1716601)
1975 8 Cylinders S 6.6L 4BL OHV (1712701)
8 Cylinders W 7.5L 4BL OHV (1712702)
1976 8 Cylinders W 7.5L 4BL OHV (1708202)
8 Cylinders Z 6.6L 4BL OHV (1708201)
1977 8 Cylinders Z 6.6L 4BL OHV (1704203)
1978 8 Cylinders Z 6.6L 4BL OHV (1700604)
Grandville
1973 8 Cylinders T 6.6L 4BL OHV (1721403)
8 Cylinders W 7.5L 4BL OHV (1721402)
1974 8 Cylinders Y 7.5L 4BL OHV (1397902)
1975 8 Cylinders S 6.6L 4BL OHV (1377601)
8 Cylinders W 7.5L 4BL OHV (1377602)
LeMans
1973 8 Cylinders M 5.7L Carburetor OHV (1418804)
8 Cylinders S 6.6L 4BL OHV (1418802)
8 Cylinders Y 7.5L 4BL OHV (1418806)
1974 8 Cylinders K 5.7L 4BL OHV (1398006)
8 Cylinders P 6.6L 2BL OHV (1398005)
8 Cylinders W 7.5L 4BL OHV (1398003)
1975 8 Cylinders M 5.7L Carburetor OHV (1377707)
8 Cylinders R 6.6L Carburetor OHV (1377705)
1976 8 Cylinders N 6.6L 2BL OHV (1356604)
8 Cylinders P 5.7L 4BL OHV (1356603)
8 Cylinders W 7.5L 4BL OHV (1356606)
1977 8 Cylinders P 5.7L 4BL OHV (1335704)
8 Cylinders Z 6.6L 4BL OHV (1335706)
Phoenix
1977 8 Cylinders R 5.7L 4BL OHV (1704405)
Trans Am
1973 8 Cylinders N 5.7L 2BL OHV (1721503)
8 Cylinders T 6.6L 4BL OHV (1721502)
8 Cylinders X 7.5L 4BL OHV HP (1721501)
1974 8 Cylinders M 5.7L Carburetor OHV (1716702)
8 Cylinders T 6.6L 4BL OHV (1716704)
8 Cylinders X 7.5L 4BL OHV HP (1716701)
1975 8 Cylinders S 6.6L 4BL OHV (1712801)
8 Cylinders W 7.5L 4BL OHV (1712802)
1976 8 Cylinders W 7.5L 4BL OHV (1708403)
8 Cylinders Z 6.6L 4BL OHV (1708402)
1977 8 Cylinders Z 6.6L 4BL OHV (1335901)
1978 8 Cylinders Z 6.6L 4BL OHV (1315401)
1979 8 Cylinders Z 6.6L 4BL OHV (1294302)
Ventura
1977 8 Cylinders R 5.7L 4BL OHV (1336006)