Use these convenient harnesses to adapt one style alternator in place of another. Contact us if you have any question about which part you may need.

Delco SI to CS - Part # W1201

Used to connect an early style Delco 10SI or 12SI internally regulated wiring harness to the later style Delco CS series alternator. Will work on CS130 or CS144 alternators.

Delco SI to AD - Part # W1203

Used to connect an early style Delco 10SI or 12SI internally regulated wiring harness to the later style Delco AD series alternator. Will work on AD and CS130D alternators.

Delco 10SI New Installation - Part # W290

This harness can be used as a new installation wiring kit for early Delco 10SI and 12SI alternators. One wire will connect to the output post on the rear of the alternator and the other will be connected through a dash light or to a switched ignition source.

Delco CS New Installation - Part # W1220

This harness can be used as a  new installation wiring kit for Delco CS-130 or CS-144 alternators. CS130D alternators will use the harness below. One wire will connect to the output post on the rear of the alternator and the other will be connected through a dash light or to a switched ignition source.

Delco AD New Installation - Part # W1222

Use this harness to install a new Delco AD series or CS130D series alternator in a vehicle. One wire will hook to the output post of the alternator and the other will be connected to a switched ingnition source.

Delco 10DN to 10SI - Part # W315

Easily adapt from an early Delco 10DN externally regulated harness to a Delco 10SI or 12SI internally regulated alternator. Has a bypass jumper wire to keep dash light functioning. Instructions included.

Delco DN to CS - Part # W315CS

Use this harness to go from the early Delco 10DN externally regulated factory loom to a Delco CS130 or CS144 alternator. Existing lights and gauges will still function. Instructions included.

Delco AD to CS - Part # W1206

This harness will adapt from a Delco AD244 or CS130D series factory wiring harness to a Delco CS130 or CS144 style alternator. All dash lights & gauges will function.

Ford 6G to 3G - Part # W2740

Use this harness when installing a Ford 3G series (small or large case) alternator in a vehicle with a 6G factory wiring harness. All lights & gauges will function normally.

Ford 3G New installation - Part # W2730

Used to install a new 3G alternator in Ford vehicles. Will allow alternator to turn on by connecting through a dash light or switched ignition source. Easily ties into existing wiring for early externally regulated alternator systems. Instructions included.

Ford 2G to 3G adapter - Part # W2700

You can replace your 2G Ford alternator with a Ford 3G alternator by using this harness. The D shaped plug will be the same as the factory harness and the instructions will show you how to hookup the wires from the rectangular plug correctly.

Chrysler Alternator to Regulator - Part # W210

This harness will connect the voltage regulator to a dual field alternator. You can also use it to change a single field alternator to a dual field alternator or change from the early style regulator to a transistorized regulator. Instructions included.