2 251 SUPPORT SUPPORT ASSY RE l AINER GROMMET SHIELD GLIP Spark Plug Wire Ser 10 thru 60 8 cyl exc P G rear lower R H Ser 10 20 w P G 8 cyl Ser 60 w pos vent 8 cyl rear lower L H 3744405 1 Ser 50 60 LCF 8 cyl rear upper L H 3744403 1 Ser 10 thru 60 8 cyl rear upper R H 3744404 1 Ser 10 thru 60 B cyl side 3744408 2 Ser 10 thru 60 8 cyl exc LCF A T rear upper L H 3744413 1 Ser 10 20 w P G 8 cyl SUPPORT ASSY rear upper L H 3744483 1 Ser 70 80 RETAINER grommet 2965736 2 Not required in this group See group 8 798 GROMMET 3707952 Ser 10 thru 60 8 cyl GROMMET rear tour BQ holes 3719963 A R Ser 10 thru 60 8 cyl SHIELD L H rear and R H front 3744411 A R Ser 10 thru 60 8 cyl SHIELD R H rear and L H front 3744412 A R Ser 10 thru 60 8 cyl CLIP wide one 1 hole 3744409 2 NOTE Previously released 2 270 PLUG Spark Ser 10 thru 50 AC 44 14 MM 1 step hot plug 1559492 A R Ser 60 C 42 1 14 MM 1 step cold plug 5612140 A R Ser 70 80 C 42 N STD long reach water cooling 5612235 A R Ser 70 80 C 43 N 1 step hot long reach water cooling 5612241 A R NOTE Previously released 2 271 GASKET Spark Plug Seat Ser 10 thru 80 LD x 2 O D 14 MM 1555475 A R NOTE Previously released 2 273 WRENCH Spark Plug Ser 10 thru 80 5 hex 4 length 3708444 1 NOTE Previously released 2 274 PULLEY AN Generator Groove Fan Dia No Width Stamped Ser 10 thru 40 w 30 amp Yes 3 1 3711766 1 Ser 10 thru 40 w 35 amp Yes 3 1 3754100 1 Ser 10 thru 40 w 40 amp Yes 3 1 3764627 1 Ser 10 thru 60 w 50 amp L C I 6 cyl Yes 3 1 1932310 1932310 1 Ser 50 60 w 40 amp 6 cyl Yes 4 1 3764624 1 Ser 50 w 40 50 amp L C l Ser 60 w 40 50 amp L C I 6 cyl No 5 1 1942911 1942911 1 Ser 50 thru 80 w 40 amp 8 cyl No 4 2 3766997 3766997 1 Ser 50 thru 80 w 50 amp L C I 8 cyl Yes 3 2 3767013 3767012 1 Ser 60 thru 80 8 cyl exc 40 50 amp L C I No 5 2 3766991 3766991 1 Ser 10 thru 80 6 separate tan FAN 12 blades 1927098 T 1 Ser 50 thru 80 w 30 amp 5 separate fan FAN 12 blades 1866400 1 Ser 50 thru 80 w 35 amp 5 separate tan FAN 13 blades 1940994 1 Ser 50 thru 80 w 40 amp 8 cyl 6 sepa rate fan FAN 12 blades 1880558 1 1 NOTE Previously released TNOTE Larger dias give increased cooling but have higher noise level They are interchange able with smaller dia fans provided there is clearance to the increased O D 2 275 GENERATOR ASSY less pulley Ser 10 thru 80 w 30 amp 30 amp solid mounts 61 U 1102096 1 Ser 10 thru 80 w 35 amp 35 amp solid mounts dual ball bearing end trames 1102173 1 Ser 10 thru 80 w 40 amp 40 amp 1105123 1 Ser 10 thru 80 w 50 amp L C I exc Cool Pack 50 amp 1 C I 1106681 1 NOTE Previously released Chevrolet Moto1 DiTv1 i g TRUCK MODEL CATALOG General Motors Corporation