Fel-Pro 35659 Engine Water Pump Gasket - Upper
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Fel-Pro

Fel-Pro 35659 Engine Water Pump Gasket - Upper

Brand Fel-Pro 35659
Position Upper
Fits Buick, Cadillac, Pontiac, Oldsmobile, and Shelby · 31 vehicles

Application-specific materials. Engineered for dependable sealing performance and durability professionals trust.

Premium grade. Built to deliver sealing solutions with professional-level durability.

Water pump gasket. Provides a precise sealing surface for the engine cooling system.

Cross-references 123321, 12555573 and 12573942 for the same application. See all 4.

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Free returns within 60 days if it doesn't fit when fitment is verified.
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Fel-Pro 35659 Engine Water Pump Gasket

Fel-Pro 35659 is a premium engine water pump gasket built for upper-to-block sealing on select GM applications. It uses application-specific materials to support a precise seal where coolant passages meet the engine block.

Key Features

  • Engine water pump gasket for upper-to-block sealing
  • Black premium-grade construction
  • Thickness: 5.54
  • Mounting hole quantity: 2
  • Mounting hole diameter: 8.510
  • Fel-Pro sealing technology focused on vehicle-specific fit and durability

Detailed Description

Fel-Pro 35659 is an engine water pump gasket engineered for sealing the water pump to the block on select Buick, Cadillac, Oldsmobile, and Pontiac vehicles. The premium material selection is intended to maintain a dependable coolant seal in a high-temperature, high-vibration area of the engine. This part number is commonly searched for Buick Lucerne, Cadillac DTS, and Cadillac DeVille water pump gasket replacement needs, as well as other GM upper water pump-to-block applications. If you are replacing a leaking gasket on a Cadillac Seville, Oldsmobile Aurora, or Pontiac Bonneville, Fel-Pro 35659 provides the correct sealing profile for the listed applications. This part cross-references OE-style numbers such as 123321 and 12555573 for the same application.

What It Helps Address

  • Coolant seepage at the water pump-to-block joint
  • External coolant leaks around the upper water pump sealing surface
  • Loss of sealing integrity from aged or compressed gasket material
  • Service issues during water pump replacement on GM upper applications
  • Fitment concerns when replacing a worn gasket with the correct profile

Installation Notes and Tips

Confirm the engine water pump mounting surface is clean, flat, and free of old gasket material before installation. Match the gasket to the upper-to-block position listed for your vehicle, and verify the mounting hole layout and diameter against the original part. For best results, follow the vehicle service procedure for coolant system service and torque sequence. Fits 2006-2011 Buick Lucerne, Upper; Fits 2006-2011 Cadillac DTS, Upper; Fits 2000-2005 Cadillac DeVille, Upper; Fits 2004-2005 Pontiac Bonneville, Upper; Fits 2000-2004 Cadillac Seville, Upper; Fits 2001-2003 Oldsmobile Aurora, Upper; Fits 2000-2002 Cadillac Eldorado, Upper.

Quality Assurance

Fel-Pro gaskets are known for application-specific sealing materials and vehicle-focused design. Fel-Pro 35659 is built to support reliable sealing performance in the listed GM water pump applications.

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2011BuickLucerne4.6LV8UpperTo Block
2011CadillacDTS4.6LV8UpperTo Block
2010BuickLucerne4.6LV8UpperTo Block
2010CadillacDTS4.6LV8UpperTo Block
2009BuickLucerne4.6LV8UpperTo Block
2009CadillacDTS4.6LV8UpperTo Block
2008BuickLucerne4.6LV8UpperTo Block
2008CadillacDTS4.6LV8UpperTo Block
2007BuickLucerne4.6LV8UpperTo Block
2007CadillacDTS4.6LV8UpperTo Block
2006BuickLucerne4.6LV8UpperTo Block
2006CadillacDTS4.6LV8UpperTo Block
2005CadillacDeVille4.6LV8UpperTo Block
2005PontiacBonneville4.6LV8UpperTo Block
2004CadillacDeVille4.6LV8UpperTo Block
2004CadillacSeville4.6LV8UpperTo Block
2004PontiacBonneville4.6LV8UpperTo Block
2003CadillacDeVille4.6LV8UpperTo Block
2003CadillacSeville4.6LV8UpperTo Block
2003OldsmobileAurora4.0LV8UpperTo Block
2002CadillacDeVille4.6LV8UpperTo Block
2002CadillacEldorado4.6LV8UpperTo Block
2002CadillacSeville4.6LV8UpperTo Block
2002OldsmobileAurora4.0LV8UpperTo Block
2001CadillacDeVille4.6LV8UpperTo Block
2001CadillacEldorado4.6LV8UpperTo Block
2001CadillacSeville4.6LV8UpperTo Block
2001OldsmobileAurora4.0LV8UpperTo Block
2000CadillacDeVille4.6LV8UpperTo Block
2000CadillacEldorado4.6LV8UpperTo Block
2000CadillacSeville4.6LV8UpperTo Block
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
123321125555731257394212583048