This Dayco Accessory Drive Belt fits your 1978 GMC Jimmy 4.1L L6 (Fan AC) and is perfect for a tune up or performance upgrade. .
Dayco Fan AC Accessory Drive Belt for 1980-1982 Cadillac DeVille 4.1L V6 ew
Dayco Fan AC Accessory Drive Belt for 1982-1986 GMC K3500 5.7L V8 Serpentine pj
Dayco Fan AC Accessory Drive Belt for 1982-1986 GMC K2500 4.3L 5.7L V6 V8 jb
Dayco Fan AC Accessory Drive Belt for 1976-1977 GMC K25 4.8L L6 Serpentine ft
Dayco Fan AC Accessory Drive Belt for 1981 Buick LeSabre 5.0L V8 Serpentine gk
Dayco Fan AC Accessory Drive Belt for 1978 Chevrolet K20 4.1L L6 Serpentine yy
