# MotoRad 339-180 Engine Coolant Thermostat with Seal for 1993-2011 Buick Lucerne ### Specifications Bypass Diameter: 1.38" Bypass Length: 1.97" Flange Thickness: 0.05" Gasket/Seal Material: Rubber Installation Tool Included: No Jiggle Pin Weep Hole: Yes Number Of Seals: 1 Sealing Flange Outside Diameter: 2.11" Temperature (Degree): 180F ### Features - Offer precise pressure control - Ensure the proper fit - Made of high quality materials - Easy installation ### Product Details Engine Coolant Thermostat with Seal (339-180) by MotoRad®. Temperature: 180F. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high-quality product used in their vehicle. As cooling system experts, MotoRad knows what is necessary to manufacture a high-quality part that will stand up to the rigors of today’s demanding cooling system environments where others fail. MotoRad offers a full line of thermostats to replace original equipment thermostats. These parts are manufactured with high-grade duel bridge stainless steel construction and they meet or exceed all original equipment manufacturer requirements. MotoRad also offers standard thermostats in many alternate temperatures. Brand: MotoRad Part Number: 339-180 UPC: 055644339801 Alternate MPN: 339180 OE Numbers: 12554784 ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2006 Buick Lucerne 2007 Buick Lucerne 2008 Buick Lucerne 2009 Buick Lucerne 2010 Buick Lucerne 2011 Buick Lucerne 1993 Cadillac Allante 1994 Cadillac Deville 1995 Cadillac Deville 1996 Cadillac Deville 1997 Cadillac Deville 1998 Cadillac Deville 1999 Cadillac Deville 2000 Cadillac Deville 2001 Cadillac Deville 2002 Cadillac Deville 2003 Cadillac Deville 2004 Cadillac Deville 2005 Cadillac Deville 2006 Cadillac DTS 2007 Cadillac DTS 2008 Cadillac DTS 2009 Cadillac DTS 2010 Cadillac DTS 2011 Cadillac DTS 1993 Cadillac Eldorado 1994 Cadillac Eldorado 1995 Cadillac Eldorado 1996 Cadillac Eldorado 1997 Cadillac Eldorado 1998 Cadillac Eldorado 1999 Cadillac Eldorado 2000 Cadillac Eldorado 2001 Cadillac Eldorado 2002 Cadillac Eldorado 1993 Cadillac Seville 1994 Cadillac Seville 1995 Cadillac Seville 1996 Cadillac Seville 1997 Cadillac Seville 1998 Cadillac Seville 1999 Cadillac Seville 2000 Cadillac Seville 2001 Cadillac Seville 2002 Cadillac Seville 2003 Cadillac Seville 2004 Cadillac Seville 2004 Cadillac SRX 2005 Cadillac SRX 2006 Cadillac SRX 2007 Cadillac SRX 2008 Cadillac SRX 2009 Cadillac SRX 2005 Cadillac STS 2006 Cadillac STS 2007 Cadillac STS 2008 Cadillac STS 2009 Cadillac STS 2010 Cadillac STS 2004 Cadillac XLR 2005 Cadillac XLR 2006 Cadillac XLR 2007 Cadillac XLR 2008 Cadillac XLR 2009 Cadillac XLR 1995 Oldsmobile Aurora 1996 Oldsmobile Aurora 1997 Oldsmobile Aurora 1998 Oldsmobile Aurora 1999 Oldsmobile Aurora 2001 Oldsmobile Aurora 2002 Oldsmobile Aurora 2003 Oldsmobile Aurora 2004 Pontiac Bonneville 2005 Pontiac Bonneville ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase. **What part number is this?** The listed part number is 339-180. **Is this product designed for direct replacement?** Yes. This product is intended to match the compatible vehicle applications listed in the fitment table. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering. ### Common Searches - Engine Coolant Thermostat with Seal for Buick Lucerne - 339-180 fitment - MotoRad Engine Coolant Thermostat with Seal - 2006 Buick Lucerne Engine Coolant Thermostat with Seal ## Details - **Price:** 27.24 CAD - **Vendor:** MotoRad - **Type:** Engine Coolant Thermostat with Seal - **Tags:** 1993 Cadillac Allante, 1993-2002 Cadillac Eldorado, 1993-2004 Cadillac Seville, 1994-2005 Cadillac Deville, 1995-1999, 2001-2003 Oldsmobile Aurora, 2004-2005 Pontiac Bonneville, 2004-2009 Cadillac SRX, 2004-2009 Cadillac XLR, 2005-2010 Cadillac STS, 2006-2011 Buick Lucerne, 2006-2011 Cadillac DTS, 339-180, Automotive, Engine Coolant Thermostat with Seal, MotoRad ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 27.24 CAD | In stock | ## Images - MotoRad 339-180 Engine Coolant Thermostat with Seal for 1993-2011 Buick Lucerne --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/motorad-339-180-engine-coolant-thermostat-with-seal) > Updated: 2026-08-17