Sierra 18-5983 Alternator, 7SI/70, Hinge Mount
- Brand:
- Sierra
- Part no:
- 18-5983
Where to buy
View on Amazonpaid link
Specifications
- Output
- 7SI/70
The Sierra 18-5983 is a replacement alternator with a 7SI/70 amp rating. It has a hinge mount and a single groove pulley, and it fits MCM 3.0L engines in a stated serial range. It cross-references other makers' numbers, including Delco 19020600 and 19020604, which helps when matching an existing unit. The fit is narrow, so the engine serial number is the first thing to check.
Our take
The fit is pinned to MCM 3.0L engines between serial numbers 0L382122 and 0M326292, so the engine serial number decides whether this alternator is the right one. Its hinge mount and single groove pulley only help inside that range.