Part #: 2-11178

TYC 2-11178 Alternator

N/A
39 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$168.59Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick and Cadillac, Lucerne and DTS
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Alternator for Buick DTS and Cadillac Lucerne

The TYC 2-11178 alternator is designed to provide consistent power generation for Buick DTS and Cadillac Lucerne models. Engineered with internal fan and regulator positions, this alternator ensures efficient operation and durability under various driving conditions.

  • Power output of 150 amps for stable electrical performance
  • Internal fan position for optimized cooling
  • Regular pulley wheel design with 6 grooves
  • Internal regulator position for compact assembly
  • Clockwise rotation direction compatible with specified vehicles
  • OE manufacturer code Nd for quality assurance

Technical Details and Features

This TYC alternator, part number 2-11178, features a 150 amp power generation capacity suitable for the electrical demands of Buick DTS and Cadillac Lucerne vehicles. The internal fan position helps maintain proper cooling without external components, reducing exposure to debris. Its regular pulley wheel design with six grooves ensures compatibility with factory belts, while the internal regulator position simplifies installation and reduces potential failure points. The clockwise rotation direction matches the original equipment specifications, ensuring seamless integration with the engine system.

Compatible Vehicles and Applications

This alternator is specifically compatible with the following vehicles:

  • Buick DTS
  • Cadillac Lucerne

It is designed to replace the original alternator in these models, restoring proper charging system function and electrical reliability.

Common Issues Addressed by This Alternator

  • Battery not charging or slow charging
  • Dim or flickering headlights and dashboard lights
  • Electrical system warning lights on the dashboard
  • Unusual noises from the alternator pulley or bearings
  • Vehicle stalling or difficulty starting due to electrical failure

Installation Notes and Tips

When installing the TYC 2-11178 alternator, ensure the pulley grooves align with the vehicle’s serpentine belt. Verify the clockwise rotation direction matches the original alternator. Since the fan and regulator are internal, no additional external components are required. It is recommended to check the battery and wiring connections during installation to ensure optimal performance.

Quality Assurance and Warranty

TYC alternators are manufactured to meet or exceed OEM standards. The 2-11178 alternator includes an OE manufacturer code (Nd), indicating adherence to quality benchmarks. While specific warranty details may vary, TYC products typically come with a limited warranty covering defects in materials and workmanship.

BrandTYC
Part Number2-11178
Fan PositionInternal
Oe ManufacturerND
Power Generation (amps)150A
Pully Wheel DesignRegular
Pully Wheel Grooves6
Regulator PositionInternal
Rotation DirectionCW

This part fits 39 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2011BuickLucerneSuperSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSPremiumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSLuxurySedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSLiveryHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSPlatinumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2011CadillacDTSLiveryLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010BuickLucerneSuperSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSLuxurySedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSPremiumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSLiveryHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSPlatinumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSLiveryLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2010CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009BuickLucerneSuperSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009CadillacDTSBaseLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009CadillacDTSPlatinumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009CadillacDTSBaseHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2009CadillacDTSLuxurySedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008BuickLucerneCXSSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008BuickLucerneCXLSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008BuickLucerneSuperSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008CadillacDTSLuxurySedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008CadillacDTSBaseLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008CadillacDTSPlatinumSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2008CadillacDTSBaseHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007BuickLucerneCXSSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007BuickLucerneCXLSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007CadillacDTSBaseLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007CadillacDTSBaseHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007CadillacDTSLuxurySedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2007CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2006BuickLucerneCXLSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2006BuickLucerneCXSSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2006CadillacDTSBaseLimousine4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2006CadillacDTSBaseHearse4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A
2006CadillacDTSBaseSedan4.6LV8N/ARegulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 150A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

11178

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.