DISTRIBUTOR GEARS

This part is no longer available.
DISTRIBUTOR GEARS
M-12390-B
Instruction Sheet
  • Fits 289/302 point and Duraspark distributors with .467" diameter shaft
  • Compatible with billet steel hydraulic roller camshafts

 

PART NUMBER MATERIAL COLOR DIAMETER APPLICATION
M-12390-A Cast Iron Orange 1.249" 0.467" 289/302 hydraulic flat tappet engines with point-type or Duraspark distributors. 1
M-12390-B Steel None 1.249" 0.467" 302 with steel billet and production roller camshaft with point-type or Duraspark distributors. 1
M-12390-C Bronze Bronze 1.249" 0.467" All 289/302 engines with point-type or Duraspark distributors. 1
M-12390-F Steel Yellow 1.249" 0.531" All 302/351W hydraulic roller tappet engines with EFI and 351W Duraspark. 1
M-12390-G Cast Iron Green 1.421" 0.531" All 351C/351M/400/429/460 engines. 1
M-12390-H Bronze Bronze with Green Stripe 1.421" 0.531" All 351C/351M/400/429/460 engines. 1
M-12390-K Polymer None 1.249" 0.467" 289/302 all camshafts with point or Duraspark distributors
M-12390-L Polymer None 1.249" 0.531" 302EFI/all 351W all camshafts

Material Selection Notes:

  • Cast iron gears are compatible with cast iron camshafts (hydraulic or solid flat tappet type).
  • Steel gears are compatible with billet steel camshafts (hydraulic roller tappet type).
  • Bronze gears can be used with either cast iron or billet steel camshafts. They are usually recommended by manufacturers of aftermarket billet steel solid roller tappet camshafts. Since the bronze is softer than cast iron or steel, it will wear at a faster rate.
  • Polymer gears are compatible with all camshafts.
  • IMPORTANT INSTALLATION NOTE: 1Distributor gears do not have pre-drilled holes. See instructions included with part, call the Techline (1-800-FORD788) for a faxed copy, or visit fordracingparts.com.
Part Type
Electrical: Distributors
Instruction Sheet
Warranty Availability
Not Available
Package Dimensions
5" x 1.5" x 7.5"
Package Weight
0.5 lb(s)
UPC Code
756122123928
Country of Origin
United States