Alternator 12V 150 Amp CW 6-Groove Compatible with 2006-2011 Cadillac DTS Buick Lucerne CXL CXS V8 4.6L 281CID Northstar DOHC 275HP Replaces 20843302 104210-5990 104210-4370

CADILLAC DTS BASE / LUXURY / PREMIUM — V8 4.6L 281CID Northstar DOHC:
• DTS Base V8 4.6L 281CID Northstar DOHC 32V 275HP FWD (2006-2010)
• DTS Luxury V8 4.6L 281CID Northstar DOHC 32V 275HP FWD (2007-2011)
• DTS Premium V8 4.6L 281CID Northstar DOHC 32V 275HP FWD (2010-2011)

BUICK LUCERNE CXL / CXS / SUPER — V8 4.6L 281CID Northstar DOHC:
• Lucerne CXL V8 4.6L 281CID Northstar DOHC 32V 275HP FWD (2006-2011)
• Lucerne CXS V8 4.6L 281CID Northstar DOHC 32V 275HP FWD (2006-2011)
• Lucerne Super V8 4.6L 281CID Northstar DOHC 32V FWD (2007-2011)

OEM PART NUMBERS:
• General Motors: 25755840 / 20843302
• 104210-4370 / 1042104370
• 104210-5990 / 1042105990

SPECIFICATIONS:
• Voltage: 12V | Amperage: 150A | Rotation: CW | Polarity: Negative
• Design: SC Hairpin | PMA (Permanent Magnet) | Fan: Internal | Regulator: Internal
• Pulley: 6-Groove Serpentine (S6) | Plug Code: 346
• Weight: 14 lbs / 6.4 kg | Condition: New

ALTERNATOR — 12V 150A 6-Groove CW SC Hairpin for Cadillac DTS & Buick Lucerne Northstar:
New SC Hairpin PMA permanent magnet IR/IF alternator for all 2006-2011 Cadillac DTS and Buick Lucerne models equipped with the V8 4.6L 281CID Northstar DOHC 32-valve engine. Both vehicles were assembled together on GM's H-platform at the Detroit/Hamtramck plant and share an identical Northstar drivetrain — and this same 150A alternator across every trim level from 2006 through 2011. 6-groove S6 serpentine pulley, CW clockwise rotation, internal regulator (IR) and internal fan (IF), negative polarity, Plug Code 346, 14 lbs / 6.4 kg. Replaces GM 20843302 / 25755840 and 104210-5990 / 1042105990 / 104210-4370 / 1042104370.

⚠️ IMPORTANT: Verify OEM part number before ordering to ensure proper fitment.