400-12466 Alternator for Cadillac Escalade 02 AD244 HO
400-12466 Alternator for Cadillac Escalade 02 AD244 HO
400-12466 Alternator for Cadillac Escalade 02 AD244 HO
400-12466 Alternator for Cadillac Escalade 02 AD244 HO

400-12466 Alternator for Cadillac Escalade 02 AD244 HO

Item #: 400-12466

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If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

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DB Electrical alternators are highly engineered for excellence in performance.
  • Built to Beat the Heat: High temperature epoxy and high temperature grease withstand extreme heat
  • Heavy-duty rectifiers and high-quality regulators enhance superior charging performance
  • Most alternators are supplied with final test results and performance curve
  • Direct-fit replacement and easy installation made possible with OEM fitment specifications
  • Factory direct, money-saving alternator typically priced substantially less than OEM counterparts
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators
DB Electrical keeps vehicles of every shape and size moving forward – from mowers, motorcycles and ATVs to automobiles, tractors, pickups and large commercial trucks. We work directly with factories to ensure each component is manufactured to our exacting quality control standards. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices.

With DB Electrical alternators, you’ll get …

  • Superior Quality Every Time – Our aftermarket alternators deliver performance that’s equivalent to the original.
  • Direct-Fit OEM Replacement Parts – DB Electrical aftermarket alternators are designed for perfect fitment to replace the ones that originally came with your vehicle.
  • Engineer-Tested Excellence – Our alternators go through a rigorous testing program to ensure optimal performance. Most alternators are supplied with their final test results and performance curve.

Reasons to choose DB Electrical for your next alternator:

  • Built to Take the Heat – Most DB Electrical alternators offer high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, top-quality bearings and high-temperature grease for better charging and longer life under high-heat environments.
  • Depth of Inventory – Find both common and hard-to-find alternators for virtually any type of vehicle to travel over road, trail or water.
  • Brand New Alternator – Never settle for a secondhand one. Many places will try to sell you a used alternator for about the price we’ll sell you a new one.

The DB Electrical Advantage – 1-Year Warranty
DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your alternator meets your expectations.

Item Number: 400-12466

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
Amperage220
Clock12
Pulley ClassS6
RegulatorIR
Fan TypeIF

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
CADILLACMedium & Heavy-Duty TruckESCALADE EXT20026.0L(364) V8
CADILLACMedium & Heavy-Duty TruckESCALADE20025.3L(325) V8
CADILLACMedium & Heavy-Duty TruckESCALADE20026.0L(364) V8
CHEVROLET / GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel2001GM 6.6L(400) V8 Dsl
CHEVROLET / GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel2002GM 6.6L(400) V8 Dsl
CHEVROLETMedium & Heavy-Duty TruckAVALANCHE 150020025.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckAVALANCHE 250020028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckC / K / R / V SERIES PICKUPS20018.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckC / K / R / V SERIES PICKUPS20028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20014.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20015.0L(305) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20015.7L(350) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20016.5L(395) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20018.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20024.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20025.0L(305) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20025.7L(350) V8
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20026.5L(395) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckEXPRESS VANS20028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 1500 HD20016.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 1500 HD20026.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150019994.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150019994.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150019995.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020004.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020004.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020005.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020014.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020014.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020015.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020024.3L(262) V6
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020024.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 150020025.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20016.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20016.6L(403) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20018.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20026.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20026.6L(403) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 2500 HD20028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250019995.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250019996.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250020005.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250020006.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250020016.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 250020026.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020016.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020016.6L(403) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020018.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020026.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020026.6L(403) V8 (Diesel)
CHEVROLETMedium & Heavy-Duty TruckSILVERADO 350020028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20005.3L(323) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20006.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20015.3L(323) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20016.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20018.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20025.3L(323) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20026.0L(364) V8
CHEVROLETMedium & Heavy-Duty TruckSUBURBAN20028.1L(496) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20004.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20005.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20014.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20015.3L(325) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20024.8L(294) V8
CHEVROLETMedium & Heavy-Duty TruckTAHOE20025.3L(325) V8
GMCMedium & Heavy-Duty TruckC / K / R / V SERIES PICKUPS20018.1L(496) V8
GMCMedium & Heavy-Duty TruckC / K / R / V SERIES PICKUPS20028.1L(496) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20014.3L(262) V6
GMCMedium & Heavy-Duty TruckSAVANA VANS20015.0L(305) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20015.7L(350) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20016.5L(395) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSAVANA VANS20018.1L(496) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20024.3L(262) V6
GMCMedium & Heavy-Duty TruckSAVANA VANS20025.0L(305) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20025.7L(350) V8
GMCMedium & Heavy-Duty TruckSAVANA VANS20026.5L(395) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSAVANA VANS20028.1L(496) V8
GMCMedium & Heavy-Duty TruckSIERRA 1500 HD20016.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 1500 HD20026.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 150019994.3L(262) V6
GMCMedium & Heavy-Duty TruckSIERRA 150019994.8L(294) V8
GMCMedium & Heavy-Duty TruckSIERRA 150019995.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020004.3L(262) V6
GMCMedium & Heavy-Duty TruckSIERRA 150020004.8L(294) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020005.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020014.3L(262) V6
GMCMedium & Heavy-Duty TruckSIERRA 150020014.8L(294) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020015.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020024.3L(262) V6
GMCMedium & Heavy-Duty TruckSIERRA 150020024.8L(294) V8
GMCMedium & Heavy-Duty TruckSIERRA 150020025.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20016.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20016.6L(403) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20018.1L(496) V8
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20026.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20026.6L(403) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSIERRA 2500 HD20028.1L(496) V8
GMCMedium & Heavy-Duty TruckSIERRA 250019995.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 250019996.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 250020005.3L(325) V8
GMCMedium & Heavy-Duty TruckSIERRA 250020006.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 250020016.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 250020026.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 350020016.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 350020016.6L(403) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSIERRA 350020018.1L(496) V8
GMCMedium & Heavy-Duty TruckSIERRA 350020026.0L(364) V8
GMCMedium & Heavy-Duty TruckSIERRA 350020026.6L(403) V8 (Diesel)
GMCMedium & Heavy-Duty TruckSIERRA 350020028.1L(496) V8
GMCMedium & Heavy-Duty TruckSIERRA DENALI20026.0L(364) V8
GMCMedium & Heavy-Duty TruckYUKON XL20005.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON XL20006.0L(364) V8
GMCMedium & Heavy-Duty TruckYUKON XL20015.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON XL20016.0L(364) V8
GMCMedium & Heavy-Duty TruckYUKON XL20018.1L(496) V8
GMCMedium & Heavy-Duty TruckYUKON XL20025.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON XL20026.0L(364) V8
GMCMedium & Heavy-Duty TruckYUKON XL20028.1L(496) V8
GMCMedium & Heavy-Duty TruckYUKON20004.8L(294) V8
GMCMedium & Heavy-Duty TruckYUKON20005.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON20014.8L(294) V8
GMCMedium & Heavy-Duty TruckYUKON20015.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON20016.0L(364) V8
GMCMedium & Heavy-Duty TruckYUKON20024.8L(294) V8
GMCMedium & Heavy-Duty TruckYUKON20025.3L(325) V8
GMCMedium & Heavy-Duty TruckYUKON20026.0L(364) V8

Replaces These Part Numbers

ARROWHEADADR0217-200,ADR0279-200, 400-12262
FAMILYAD244 HO
J&N Electrical Products400-12262
J&N Electrical Products400-12466
LESTER8237-200
LESTER8274-200
PIC240-6410D
PIC240-6418D

Frequently Asked Questions

Q: Do I need a larger charge wire for a High Output unit?
A: The high amp unit will operate better than stock, but not to its full potential without a larger charge wire. It’s the same reason firetrucks do not use garden hoses. It is IMPARATIVE to have proper charge and ground cables.

Q: Does a High Amp unit cause any damage to my battery or my vehicles charging system?
A: As long as it is installed properly with battery in good condition, then no. A High Output unit works exactly like a factory unit and only produces what is being demanded. No alternator works continuously at full output. Higher amperage is not bad and will not hurt a battery, but high voltage will blow one up.

Q: Will aftermarket underdrive pulleys (crankshaft power pulley) have any effect on my alternator?
A: Yes, underdrive crankshaft pulleys slow all the components (power steering, a/c, and alternator) to provide more power to the rear wheels. In some cases, the charging systems will fall totally on the battery at idle and completely stop charging.

Q: Where is the best place to get a voltage reading of the alternator output?
A: You’ll get the most accurate voltage reading from the back of the alternator at the main charge post that runs directly to the battery. This must be done while the vehicle is running.

Q: Why is the pulley on a high amp alternator smaller than my stock pulley?
A: The smaller pulley advances the power curve of the alternator just slightly, which produces a little more amperage around the idle if needed.

Q: Will I need a smaller belt for my high amp unit?
A: This varies by application because not all belts and belt tensioners are in the same condition. The tensioner will always tell you if you need a new belt or not. If it’s in range, you will not. If it is out, you will. Generally, you will need a belt that is one inch shorter than stock. You should have no problem finding a replacement wherever you buy your parts. V belt applications simply re-adjust your belt tensions to 3/8” deflection.

Q: What is the difference between a one wire, self-exciting and a self-energizing regulator?
A: Nothing. They are all exactly the same. Different manufacturers use different terms for marketing. The only wire to hook up is the charge wire to the battery. This does require modification for the alternator charge light on the dash.

Q: My stock unit used a five-groove pulley, and you sent my high amp alternator with a 6 groove. Why and what can I do?
A: 5 groove overdrive pullies are not produced. Install the belt on the back groove of the pulley closest to the fan or body of the alternator. The fan is internal, and this application will work just fine.

Q: Can your alternator be run in dual or triple alternator applications?
A: Yes. When wired and mounted correctly, the alternator can run in either dual or triple applications.

Q: Will I need a new battery with a high amp alternator?
A: If your battery is in good condition, and in spec of its OEM rating, then no. Your battery should work equally well with either the OEM and a High Amp unit.

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