Answer
Nov 06, 2025 - 11:52 AM
This part number is a detailed breakdown of the Arco 4010 alternator's build:
A225S: Refers to the Zeus 225-Amp series.
12: 12-volt system.
DF315: "Dual Foot" 3.15-inch (or 80mm) J180 saddle-style mount.
EX: Requires an "External" voltage regulator (it does not have an internal regulator).
49K6: Equipped with a 49mm diameter, 6-groove (K6) serpentine pulley.
A225S: Refers to the Zeus 225-Amp series.
12: 12-volt system.
DF315: "Dual Foot" 3.15-inch (or 80mm) J180 saddle-style mount.
EX: Requires an "External" voltage regulator (it does not have an internal regulator).
49K6: Equipped with a 49mm diameter, 6-groove (K6) serpentine pulley.
