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12V 300A Alternator Fits 2003-2007 Hummer H2 Ad244

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240-6223A9
DELCO OEM PART NUMBERS:
• Delco: 10464405 / 10464443 / 10464453 / 10464456 / 10464476
• Delco: 10480234 / 10480390
• Delco: 15200109 / 15226003 / 15750871
• Delco: 15754097 / 15754097A / 15754097M / 15754097W
• Delco: 15768830 / 18000002
• Delco: 19244745 / 19244746 / 22781130

GENERAL MOTORS OEM PART NUMBERS:
• GM: 10464405 / 10464443 / 10464453 / 10464456
• GM: 15263859 / 19151921 / 19244751

ISUZU, SAAB AND AM GENERAL PART NUMBERS:
• Isuzu: 8104644760 / 8152260030
• Saab: 15-22-6003 / 15226003
• AM General: 6019239

SPECIFICATIONS:
• Type: Alternator, High Output
• Replaces Family: Delco AD244 Series Original
• Voltage: 12 Volts
• Amperage: 300 Amps (original unit 145 Amps)
• Rotation: CW (Clockwise)
• Design: IR/IF (Internal Regulator, Internal Fan)
• Pulley Class: S6, 6-Groove Serpentine
• Connector: 4-Pin
• Plug Clock Position: 12:00
• Output Stud: M6-1.0
• Polarity: Negative Ground
• Mounting: 2 Ears, 10.0mm Inside Diameter, Unthreaded
• Condition: New

APPLICATIONS:
• Chevrolet Silverado 1500 / 1500 HD / 1500 Classic 4.3L-6.0L (1999-2007)
• Chevrolet Silverado 2500 / 2500 HD / 3500 6.0L 6.6L 8.1L (1999-2005)
• Chevrolet Avalanche 1500 / 2500, Suburban 1500 / 2500 (2000-2004)
• Chevrolet Tahoe, Trailblazer, SSR, C3500HD (2000-2006)
• Chevrolet Express 1500 / 2500 / 3500 Van 4.3L-8.1L (2001-2010)
• GMC Sierra 1500 / 1500 HD / 1500 Classic 4.3L-6.0L (1999-2007)
• GMC Sierra 2500 / 2500 HD / 3500 6.0L 6.6L 8.1L (1999-2005)
• GMC Yukon, Yukon XL 1500 / 2500, Envoy, C3500HD (2000-2006)
• GMC Savana 1500 / 2500 / 3500 Van 4.3L-8.1L (2001-2002)
• Cadillac Escalade / Escalade ESV / Escalade EXT (2002-2004)
• Buick Rainier V8 5.3L (2006)
• Isuzu Ascender V8 5.3L (2003-2006)
• Saab 9-7X V8 5.3L (2005-2006)
• Hummer H2 V8 6.0L (2003-2007)

DOES NOT FIT:
• Vehicles fitted with a GM alternator family other than the AD244
• Installations retaining the factory charging cable at full rated output

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals such as Lead, Carbon Black, Silica, Crystalline which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

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Description

300 AMP HIGH OUTPUT 12 VOLT ALTERNATOR — REPLACES ORIGINAL DELCO AD244 ON GM TRUCK, SUV AND VAN APPLICATIONS (1999-2010):

CHEVROLET SILVERADO 1500 — 4.3L THROUGH 6.0L:
• Chevrolet Silverado 1500 V6 4.3L 262 CID VIN W VIN X (1999-2004)
• Chevrolet Silverado 1500 V8 4.8L 294 CID VIN V (1999-2004)
• Chevrolet Silverado 1500 V8 5.3L 5328cc 325 CID VIN T VIN Z (1999-2005)
• Chevrolet Silverado 1500 V8 6.0L 5967cc 364 CID (2003-2005)
• Chevrolet Silverado 1500 Classic V8 6.0L 364 CID (2007)
• Chevrolet Silverado 1500 HD V8 6.0L 5967cc 364 CID (2001-2005)

CHEVROLET SILVERADO 2500, 3500 AND HEAVY DUTY:
• Chevrolet Silverado 2500 V8 5.3L 325 CID VIN T (1999-2000)
• Chevrolet Silverado 2500 V8 6.0L 364 CID VIN U (1999-2004)
• Chevrolet Silverado 2500 HD V8 6.0L 5967cc 364 CID (2001-2005)
• Chevrolet Silverado 2500 HD V8 6.6L 6599cc 403 CID Duramax (2001-2005)
• Chevrolet Silverado 2500 HD V8 8.1L 496 CID (2001-2005)
• Chevrolet Silverado 3500 V8 6.0L / 6.6L / 8.1L (2001-2005)
• Chevrolet C3500HD V8 8.1L 496 CID Medium Duty (2001-2002)

CHEVROLET SUVS AND SPECIALTY TRUCKS:
• Chevrolet Avalanche 1500 V8 5.3L 5328cc 325 CID (2002-2004)
• Chevrolet Avalanche 2500 V8 8.1L 496 CID (2002)
• Chevrolet Suburban 1500 V8 5.3L 5328cc 325 CID (2000-2004)
• Chevrolet Suburban 2500 V8 6.0L 364 CID and 8.1L 496 CID (2000-2002)
• Chevrolet Tahoe V8 4.8L 294 CID and 5.3L 325 CID (2000-2002)
• Chevrolet Trailblazer V8 5.3L 5328cc 325 CID (2006)
• Chevrolet SSR V8 5.3L 5328cc 325 CID (2003-2004)

CHEVROLET EXPRESS VANS — 1500, 2500 AND 3500:
• Chevrolet Express 1500 V6 4.3L 262 CID (2001-2004)
• Chevrolet Express 1500 V8 5.0L 305 CID / 5.3L 325 CID / 5.7L 350 CID (2001-2004)
• Chevrolet Express 2500 V6 4.3L 262 CID and V8 5.0L 305 CID (2001-2002)
• Chevrolet Express 2500 V8 5.7L 350 CID and 6.5L 395 CID Diesel (2001-2002)
• Chevrolet Express 2500 V8 6.6L 6599cc 403 CID (2010)
• Chevrolet Express 3500 V8 5.7L 350 CID / 6.5L Diesel / 8.1L 496 CID (2001-2002)

GMC SIERRA 1500 — 4.3L THROUGH 6.0L:
• GMC Sierra 1500 V6 4.3L 262 CID VIN W VIN X (1999-2004)
• GMC Sierra 1500 V8 4.8L 294 CID VIN V (1999-2004)
• GMC Sierra 1500 V8 5.3L 5328cc 325 CID VIN T VIN Z (1999-2004)
• GMC Sierra 1500 V8 6.0L 5967cc 364 CID (2002-2004)
• GMC Sierra 1500 Classic V8 6.0L 364 CID (2007)
• GMC Sierra 1500 HD V8 6.0L 5967cc 364 CID (2001-2005)

GMC SIERRA 2500, 3500 AND HEAVY DUTY:
• GMC Sierra 2500 V8 5.3L 325 CID (1999-2000)
• GMC Sierra 2500 V8 6.0L 5967cc 364 CID (1999-2004)
• GMC Sierra 2500 HD V8 6.0L 5967cc 364 CID (2001-2005)
• GMC Sierra 2500 HD V8 6.6L 403 CID Duramax VIN 1 (2001-2005)
• GMC Sierra 2500 HD V8 8.1L 496 CID VIN G (2001-2005)
• GMC Sierra 3500 V8 6.0L / 6.6L / 8.1L (2001-2005)
• GMC C3500HD V8 8.1L 496 CID Medium Duty (2001-2002)

GMC SUVS AND SAVANA VANS:
• GMC Yukon V8 4.8L 294 CID and 5.3L 5328cc 325 CID (2000-2002)
• GMC Yukon XL 1500 V8 5.3L 5328cc 325 CID (2000-2002)
• GMC Yukon XL 2500 V8 6.0L 364 CID and 8.1L 496 CID (2000-2002)
• GMC Envoy V8 5.3L 5328cc 325 CID (2005-2006)
• GMC Savana 1500 V6 4.3L / V8 5.0L / V8 5.7L (2001-2002)
• GMC Savana 2500 V6 4.3L / V8 5.0L / 5.7L / 6.5L Diesel (2001-2002)
• GMC Savana 3500 V8 5.7L 350 CID / 6.5L Diesel / 8.1L 496 CID (2001-2002)

CADILLAC, BUICK, ISUZU, SAAB AND HUMMER:
• Cadillac Escalade V8 5.3L 325 CID and 6.0L 364 CID (2002)
• Cadillac Escalade ESV V8 6.0L 5967cc 364 CID (2003-2004)
• Cadillac Escalade EXT V8 6.0L 5967cc 364 CID (2003)
• Buick Rainier V8 5.3L 5328cc 325 CID (2006)
• Isuzu Ascender V8 5.3L 5328cc 325 CID (2003-2006)
• Saab 9-7X V8 5.3L 5328cc 325 CID (2005-2006)
• Hummer H2 V8 6.0L 364 CID (2003-2007)

CHARGING CABLE UPGRADE — READ BEFORE INSTALLING:
This alternator produces more than twice the current of the 145 amp unit it replaces. The factory charging cable and fusible link are sized for the original output and will overheat if the full output of this alternator is drawn through them. Fit a heavier main charging cable, 4 gauge or larger, with a correctly rated fuse at the alternator end before putting the vehicle into service. Have the installation carried out or checked by a qualified auto electrician

FITMENT NOTES:
• REPLACES THE ORIGINAL DELCO AD244 TYPE — EXPECT IT TO LOOK DIFFERENT FROM YOUR ORIGINAL. This is a purpose built high output unit that supersedes the original AD244 style alternator, so the case and cooling are not the same as the factory part
• IT STILL BOLTS STRAIGHT IN. The unit retains the 6-groove serpentine pulley, the 4-pin connector, the 12:00 plug clock position and the two 10.0mm unthreaded mounting ears of the original, so it fits the factory bracket with no modification
• Clockwise rotation, negative ground, internal regulator and internal fan
• Output stud is M6-1.0. The larger cable this alternator needs may require a ring terminal change
• HIGH OUTPUT ALTERNATORS PRODUCE LESS AT IDLE. Rated output is reached at cruising engine speed, not at idle. If the vehicle spends long periods idling with a heavy load, a smaller pulley or a second battery may be needed
• Suits vehicles with aftermarket audio systems, winches, plough gear, inverters, auxiliary lighting or upfitted work equipment
• The original 145 amp AD244 remains the correct choice for a standard vehicle with no added electrical load
• Verify the number on your original alternator. GM used several alternator families across these years and the AD244 is only one of them

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  • 32.0 lbs.
  • W17.0000” x H12.0000” x L17.0000”
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