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Coolant Reservoir Caps

Is your coolant reservoir cap missing or damaged? Get a durable replacement here at CarParts.com! We carry a wide selection of coolant reservoir caps designed for a wide variety of makes and models. Enjoy competitive pricing on aftermarket parts manufactured by the top brands today. Place your order in just a few clicks, and we’ll ship the parts you need right to your doorstep. Shop now and get the best deal on a coolant reservoir cap today!
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31406 Coolant Reservoir Cap - Direct Fit, Sold individually
Gates®
31406 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: GAT31406
Vehicle Info Required to Guarantee Fit
$10.49
Product Details
Warranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
55056382AA Coolant Reservoir Cap - Direct Fit
Crown®
55056382AA Coolant Reservoir Cap - Direct Fit
Part Number: CR55056382AA
Vehicle Info Required to Guarantee Fit
$9.99
Product Details
Notes : Use existing hardwareWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Replaces OE Number : 5174456, 55056382Product Fit : Direct Fit
924-1059 Coolant Reservoir Cap - Sold individually
Dorman®
924-1059 Coolant Reservoir Cap - Sold individually
Part Number: RB9241059
Vehicle Info Required to Guarantee Fit
$13.99
Product Details
Warranty : 3-year or unlimited-mile Dorman limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : HD Solutions Series
17117521071 Coolant Reservoir Cap - Direct Fit, Sold individually
APA/URO Parts®
17117521071 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: URO17117521071
Vehicle Info Required to Guarantee Fit
$16.49
Product Details
Warranty : 2-year or unlimited-mile APA/URO Parts limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : APA/URO Parts Coolant Reservoir CapRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
13502353 Coolant Reservoir Cap - Direct Fit, Sold individually
AC Delco®
13502353 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: AC13502353
Vehicle Info Required to Guarantee Fit
$9.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
31540 Coolant Reservoir Cap
Gates®
31540 Coolant Reservoir Cap
Part Number: GAT31540
Vehicle Info Required to Guarantee Fit
$13.49
Vehicle Fitment
  • 2003 - 2011 Mercedes Benz G55 AMG Base 8 Cyl 5.5L
  • 2012 - 2015 Mercedes Benz ML63 AMG Base 8 Cyl 5.5L
  • 2013 - 2015 Mercedes Benz GLK250 Bluetec 4Matic 4 Cyl 2.1L
  • 2005 - 2016 Mercedes Benz SLK350 Base 6 Cyl 3.5L
  • 2012 - 2016 Mercedes Benz S550 Base 8 Cyl 4.7L
  • 2008 - 2011 Mercedes Benz ML550 Base 8 Cyl 5.5L
  • 2017 - 2018 Mercedes Benz G550 4x4 Base 8 Cyl 4.0L
  • 2006 - 2009 Mercedes Benz CLK350 Base 6 Cyl 3.5L
  • 2012 - 2018 Mercedes Benz CLS550 4Matic 8 Cyl 4.7L
  • 2015 Mercedes Benz C400 4Matic 6 Cyl 3.0L
  • 1999 - 2003 Mercedes Benz CLK430 Base 8 Cyl 4.3L
  • 2019 - 2020 Mercedes Benz G63 AMG Base 8 Cyl 4.0L
  • 2015 - 2016 Mercedes Benz GL450 4Matic 6 Cyl 3.0L
  • 2003 - 2012 Mercedes Benz S600 Base 12 Cyl 5.5L
  • 2007 - 2011 Mercedes Benz CLS63 AMG Base 8 Cyl 6.3L
  • 2007 - 2011 Mercedes Benz E63 AMG Base 8 Cyl 6.3L
  • 2006 - 2015 Mercedes Benz C350 4Matic 6 Cyl 3.5L
  • 2013 - 2017 Mercedes Benz SL63 AMG Base 8 Cyl 5.5L
  • 2008 - 2012 Mercedes Benz C300 4Matic Luxury 6 Cyl 3.0L
  • 2017 - 2018 Mercedes Benz GLS550 4Matic 8 Cyl 4.7L
  • 2007 - 2009 Mercedes Benz SL550 Base 8 Cyl 5.5L
  • 2011 - 2012 Mercedes Benz SL550 Base 8 Cyl 5.5L
  • 2015 - 2018 Mercedes Benz C63 AMG S Base 8 Cyl 4.0L
  • 2007 - 2011 Mercedes Benz E550 4Matic 8 Cyl 5.5L
  • 1998 - 2002 Mercedes Benz E430 Base 8 Cyl 4.3L
  • 2010 - 2014 Mercedes Benz ML350 Bluetec 4Matic 6 Cyl 3.0L
  • 2014 - 2016 Mercedes Benz E250 Bluetec 4Matic 4 Cyl 2.1L
  • 1998 - 1999 Mercedes Benz CL600 Base 12 Cyl 6.0L
  • 2010 - 2015 Mercedes Benz GLK350 4Matic 6 Cyl 3.5L
  • 2015 - 2020 Mercedes Benz GLA250 Base 4 Cyl 2.0L
  • 2015 - 2017 Mercedes Benz GLA45 AMG 4Matic 4 Cyl 2.0L
  • 2019 - 2020 Mercedes Benz E450 4Matic 6 Cyl 3.0L
  • 2005 - 2010 Mercedes Benz SLK55 AMG Base 8 Cyl 5.5L
  • 2012 - 2016 Mercedes Benz SLK55 AMG Base 8 Cyl 5.5L
  • 2001 - 2002 Mercedes Benz S55 AMG Base 8 Cyl 5.5L
  • 2004 - 2006 Mercedes Benz S55 AMG Base 8 Cyl 5.5L
  • 2012 - 2014 Mercedes Benz C250 Luxury 4 Cyl 1.8L
  • 2004 - 2009 Mercedes Benz SL600 Base 12 Cyl 5.5L
  • 2014 - 2018 Mercedes Benz CLS63 AMG S 4Matic 8 Cyl 5.5L
  • 2015 - 2020 Mercedes Benz C300 Base 4 Cyl 2.0L
  • 2017 - 2019 Mercedes Benz GLS450 4Matic 6 Cyl 3.0L
  • 2015 - 2016 Mercedes Benz SL400 Base 6 Cyl 3.0L
  • 2013 - 2013 Mercedes Benz G63 AMG Base 8 Cyl 5.5L
  • 2015 - 2018 Mercedes Benz G63 AMG Base 8 Cyl 5.5L
  • 2007 - 2014 Mercedes Benz GL450 Base 8 Cyl 4.7L
  • 2020 Mercedes Benz E350 Base 4 Cyl 2.0L
  • 2006 - 2007 Mercedes Benz C280 Luxury 6 Cyl 3.0L
  • 2008 - 2010 Mercedes Benz C300 Base 6 Cyl 3.0L
  • 2006 - 2008 Mercedes Benz SLK280 Base 6 Cyl 3.0L
  • 2008 - 2012 Mercedes Benz C300 4Matic Sport 6 Cyl 3.0L
  • 1996 - 2005 Mercedes Benz E320 Base 6 Cyl 3.2L
  • 2005 - 2006 Mercedes Benz E320 CDI 6 Cyl 3.2L
  • 2014 - 2020 Mercedes Benz CLA250 4Matic 4 Cyl 2.0L
  • 2016 - 2018 Mercedes Benz C63 AMG Base 8 Cyl 4.0L
  • 2001 - 2004 Mercedes Benz SLK320 Base 6 Cyl 3.2L
  • 2009 - 2010 Mercedes Benz CL550 4Matic 8 Cyl 5.5L
  • 1998 - 1999 Mercedes Benz S320 SWB 6 Cyl 3.2L
  • 1998 - 2005 Mercedes Benz E320 4Matic 6 Cyl 3.2L
  • 2008 - 2011 Mercedes Benz C300 Sport 6 Cyl 3.0L
  • 1999 - 2006 Mercedes Benz E55 AMG Base 8 Cyl 5.5L
  • 2015 - 2020 Mercedes Benz GLA250 4Matic 4 Cyl 2.0L
  • 2001 - 2006 Mercedes Benz CL55 AMG Base 8 Cyl 5.5L
  • 2006 - 2014 Mercedes Benz C350 Sport 6 Cyl 3.5L
  • 2000 - 2006 Mercedes Benz CL500 Base 8 Cyl 5.0L
  • 2013 - 2014 Mercedes Benz ML550 Base 8 Cyl 4.7L
  • 2007 - 2009 Mercedes Benz CLK63 AMG Base 8 Cyl 6.3L
  • 2007 - 2011 Mercedes Benz S550 4Matic 8 Cyl 5.5L
  • 1998 - 2006 Mercedes Benz SL500 Base 8 Cyl 5.0L
  • 2019 - 2020 Mercedes Benz A220 4Matic 4 Cyl 2.0L
  • 2005 - 2009 Mercedes Benz SLR McLaren Base 8 Cyl 5.5L
  • 2003 - 2006 Mercedes Benz E500 Base 8 Cyl 5.0L
  • 2007 - 2011 Mercedes Benz CLS550 Base 8 Cyl 5.5L
  • 2006 - 2007 Mercedes Benz C280 4Matic 6 Cyl 3.0L
  • 2005 - 2009 Mercedes Benz SL65 AMG Base 12 Cyl 6.0L
  • 2011 - 2011 Mercedes Benz SL65 AMG Base 12 Cyl 6.0L
  • 2013 - 2017 Mercedes Benz SL65 AMG Base 12 Cyl 6.0L
  • 2006 - 2016 Mercedes Benz E350 4Matic 6 Cyl 3.5L
  • 2009 - 2011 Mercedes Benz ML350 Base 6 Cyl 3.5L
  • 2013 - 2015 Mercedes Benz ML350 Base 6 Cyl 3.5L
  • 2008 Mercedes Benz CLK63 AMG Black Series 8 Cyl 6.3L
  • 2003 - 2005 Mercedes Benz C240 4Matic 6 Cyl 2.6L
  • 2012 - 2018 Mercedes Benz CLS550 Base 8 Cyl 4.7L
  • 2006 - 2016 Mercedes Benz E350 Base 6 Cyl 3.5L
  • 2006 - 2011 Mercedes Benz R350 4Matic 6 Cyl 3.5L
  • 2000 Mercedes Benz C43 AMG Base 8 Cyl 4.3L
  • 2015 - 2016 Mercedes Benz S600 Base 12 Cyl 6.0L
  • 2006 Mercedes Benz CLS55 AMG Base 8 Cyl 5.5L
  • 2003 - 2006 Mercedes Benz S500 4Matic 8 Cyl 5.0L
  • 2012 Mercedes Benz SLS AMG Base 8 Cyl 6.3L
  • 2007 - 2009 Mercedes Benz CLK550 Base 8 Cyl 5.5L
  • 2016 - 2017 Mercedes Benz GLE63 AMG S Base 8 Cyl 5.5L
  • 2019 Mercedes Benz GLE63 AMG S Base 8 Cyl 5.5L
  • 2013 - 2016 Mercedes Benz GL550 4Matic 8 Cyl 4.7L
  • 2012 - 2015 Mercedes Benz SLK250 Base 4 Cyl 1.8L
  • 2004 - 2006 Mercedes Benz E500 4Matic 8 Cyl 5.0L
  • 2012 - 2015 Mercedes Benz C250 Base 4 Cyl 1.8L
  • 1998 - 2006 Mercedes Benz S500 Base 8 Cyl 5.0L
  • 2010 - 2015 Mercedes Benz GLK350 Base 6 Cyl 3.5L
  • 2018 - 2020 Mercedes Benz S560 4Matic 8 Cyl 4.0L
  • 2008 - 2012 Mercedes Benz C300 4Matic 6 Cyl 3.0L
  • 2007 - 2008 Mercedes Benz ML320 CDI 6 Cyl 3.0L
  • 2009 - 2010 Mercedes Benz G550 Base 8 Cyl 5.5L
  • 2012 - 2013 Mercedes Benz G550 Base 8 Cyl 5.5L
  • 2015 Mercedes Benz G550 Base 8 Cyl 5.5L
  • 2003 - 2005 Mercedes Benz C320 4Matic 6 Cyl 3.2L
  • 2002 Mercedes Benz C230 Kompressor 4 Cyl 2.3L
  • 2007 - 2008 Mercedes Benz CL550 Base 8 Cyl 5.5L
  • 2016 - 2020 Mercedes Benz GLC300 4Matic 4 Cyl 2.0L
  • 2011 - 2017 Mercedes Benz S63 AMG Base 8 Cyl 5.5L
  • 2007 - 2009 Mercedes Benz E320 Bluetec 6 Cyl 3.0L
  • 2016 - 2019 Mercedes Benz G550 Base 8 Cyl 4.0L
  • 2007 - 2011 Mercedes Benz S550 Base 8 Cyl 5.5L
  • 2006 - 2007 Mercedes Benz C230 Sport 6 Cyl 2.5L
  • 2005 - 2006 Mercedes Benz CL65 AMG Base 12 Cyl 6.0L
  • 2008 - 2011 Mercedes Benz CL65 AMG Base 12 Cyl 6.0L
  • 2008 - 2014 Mercedes Benz C63 AMG Base 8 Cyl 6.3L
  • 2009 - 2011 Mercedes Benz SLK300 Base 6 Cyl 3.0L
  • 2001 - 2005 Mercedes Benz C240 Base 6 Cyl 2.6L
  • 2001 - 2002 Mercedes Benz CL600 Base 12 Cyl 5.8L
  • 2018 - 2020 Mercedes Benz S560 Base 8 Cyl 4.0L
  • 2013 Mercedes Benz ML550 4Matic 8 Cyl 4.7L
  • 2007 - 2011 Mercedes Benz E550 Base 8 Cyl 5.5L
  • 2006 - 2015 Mercedes Benz ML350 4Matic 6 Cyl 3.5L
  • 2016 - 2018 Mercedes Benz GLE350 Base 6 Cyl 3.5L
  • 2018 - 2019 Mercedes Benz GLC350e 4Matic 4 Cyl 2.0L
  • 2008 - 2010 Mercedes Benz CL63 AMG Base 8 Cyl 6.3L
  • 2010 - 2016 Mercedes Benz GL350 Bluetec 4Matic 6 Cyl 3.0L
  • 1998 - 2005 Mercedes Benz CLK320 Base 6 Cyl 3.2L
  • 2008 - 2010 Mercedes Benz C350 Base 6 Cyl 3.5L
  • 2012 - 2015 Mercedes Benz C350 Base 6 Cyl 3.5L
  • 2012 - 2016 Mercedes Benz S550 4Matic 8 Cyl 4.7L
  • 2006 Mercedes Benz S350 Base 6 Cyl 3.7L
  • 2018 - 2020 Mercedes Benz Maybach S560 4Matic 8 Cyl 4.0L
  • 2014 - 2020 Mercedes Benz CLA250 Base 4 Cyl 2.0L
  • 2013 - 2018 Mercedes Benz SL550 Base 8 Cyl 4.7L
  • 2002 - 2008 Mercedes Benz G500 Base 8 Cyl 5.0L
  • 2012 - 2014 Mercedes Benz C250 Sport 4 Cyl 1.8L
  • 2003 Mercedes Benz S55 AMG Kompressor 8 Cyl 5.5L
  • 2012 - 2013 Mercedes Benz S350 Bluetec 4Matic 6 Cyl 3.0L
  • 2007 - 2008 Mercedes Benz R320 CDI 6 Cyl 3.0L
  • 2015 - 2017 Mercedes Benz CLS400 4Matic 6 Cyl 3.0L
  • 2006 - 2007 Mercedes Benz C350 Luxury 6 Cyl 3.5L
  • 2014 Mercedes Benz CLS63 AMG 4Matic 8 Cyl 5.5L
  • 2000 - 2006 Mercedes Benz S430 Base 8 Cyl 4.3L
  • 2015 - 2017 Mercedes Benz CLS400 Base 6 Cyl 3.0L
  • 2013 - 2014 Mercedes Benz C300 4Matic Luxury 6 Cyl 3.5L
  • 2012 - 2017 Mercedes Benz E550 Base 8 Cyl 4.7L
  • 2009 - 2009 Mercedes Benz SL63 AMG Base 8 Cyl 6.3L
  • 2011 - 2012 Mercedes Benz SL63 AMG Base 8 Cyl 6.3L
  • 2009 Mercedes Benz ML320 Bluetec 4Matic 6 Cyl 3.0L
  • 2012 Mercedes Benz C63 AMG Black Series 8 Cyl 6.3L
  • 2015 Mercedes Benz ML250 Bluetec 4Matic 4 Cyl 2.1L
  • 2013 - 2016 Mercedes Benz GL63 AMG Base 8 Cyl 5.5L
  • 2016 - 2018 Mercedes Benz GLE350 4Matic 6 Cyl 3.5L
  • 2008 - 2012 Mercedes Benz GL550 Base 8 Cyl 5.5L
  • 2006 - 2011 Mercedes Benz S65 AMG Base 12 Cyl 6.0L
  • 2015 - 2016 Mercedes Benz S65 AMG Base 12 Cyl 6.0L
  • 2001 - 2005 Mercedes Benz C320 Base 6 Cyl 3.2L
  • 2013 - 2014 Mercedes Benz C300 4Matic 6 Cyl 3.5L
  • 1998 - 2000 Mercedes Benz C280 Base 6 Cyl 2.8L
  • 1998 - 2002 Mercedes Benz SL600 Base 12 Cyl 6.0L
  • 2004 - 2008 Mercedes Benz SL55 AMG Base 8 Cyl 5.5L
  • 2011 - 2014 Mercedes Benz CL550 4Matic 8 Cyl 4.7L
  • 2008 - 2011 Mercedes Benz C300 Luxury 6 Cyl 3.0L
  • 2011 - 2014 Mercedes Benz CL63 AMG Base 8 Cyl 5.5L
  • 2002 - 2004 Mercedes Benz C32 AMG Base 6 Cyl 3.2L
  • 2010 Mercedes Benz ML450 Hybrid 4Matic 6 Cyl 3.5L
  • 2015 - 2018 Mercedes Benz E400 Base 6 Cyl 3.0L
  • 2000 - 2002 Mercedes Benz E430 4Matic 8 Cyl 4.3L
  • 2016 Mercedes Benz Maybach S600 Base 12 Cyl 6.0L
  • 2009 Mercedes Benz R320 Bluetec 6 Cyl 3.0L
  • 2013 - 2014 Mercedes Benz C300 4Matic Sport 6 Cyl 3.5L
  • 2002 - 2004 Mercedes Benz SLK32 AMG Base 6 Cyl 3.2L
  • 2017 - 2019 Mercedes Benz E300 4Matic 4 Cyl 2.0L
  • 2016 - 2017 Mercedes Benz GLE400 4Matic 6 Cyl 3.0L
  • 2019 Mercedes Benz GLE400 4Matic 6 Cyl 3.0L
  • 2016 - 2020 Mercedes Benz GLC300 Base 4 Cyl 2.0L
  • 2003 - 2006 Mercedes Benz S430 4Matic 8 Cyl 4.3L
  • 2003 - 2012 Mercedes Benz CL600 Base 12 Cyl 5.5L
  • 2012 - 2013 Mercedes Benz E63 AMG Base 8 Cyl 5.5L
  • 2017 Mercedes Benz GLS350d 4Matic 6 Cyl 3.0L
  • 2015 - 2018 Mercedes Benz E400 4Matic 6 Cyl 3.0L
  • 2003 - 2006 Mercedes Benz CLK500 Base 8 Cyl 5.0L
  • 2007 Mercedes Benz R63 AMG Base 8 Cyl 6.3L
  • 2001 - 2006 Mercedes Benz CLK55 AMG Base 8 Cyl 5.5L
  • 2015 - 2020 Mercedes Benz C300 4Matic 4 Cyl 2.0L
  • 2014 - 2018 Mercedes Benz CLA45 AMG 4Matic 4 Cyl 2.0L
  • 2016 - 2019 Mercedes Benz Metris Base 4 Cyl 2.0L
  • 2001 - 2002 Mercedes Benz S600 Base 12 Cyl 5.8L
  • 2006 - 2007 Mercedes Benz R500 Base 8 Cyl 5.0L
  • 2005 - 2006 Mercedes Benz C55 AMG Base 8 Cyl 5.5L
  • 2003 - 2005 Mercedes Benz C230 Kompressor 4 Cyl 1.8L
  • 2019 Mercedes Benz Sprinter 2500 Base 4 Cyl 2.0L
  • 2016 Mercedes Benz GLE450 AMG 4Matic 6 Cyl 3.0L
  • 1996 - 1997 Mercedes Benz E300 Base 6 Cyl 3.0L
  • 1999 Mercedes Benz E300 Base 6 Cyl 3.0L
  • 2017 - 2019 Mercedes Benz E300 Base 4 Cyl 2.0L
  • 2020 Mercedes Benz E350 4Matic 4 Cyl 2.0L
  • 1998 - 1999 Mercedes Benz S320 LWB 6 Cyl 3.2L
  • 2014 - 2016 Mercedes Benz E250 Bluetec 4 Cyl 2.1L
  • 2018 Mercedes Benz S450 4Matic 6 Cyl 3.0L
  • 2008 - 2010 Mercedes Benz S63 AMG Base 8 Cyl 6.3L
  • 2012 Mercedes Benz SL63 AMG Avantgarde 8 Cyl 6.3L
  • 2017 - 2018 Mercedes Benz GLS63 AMG Base 8 Cyl 5.5L
  • 2007 - 2008 Mercedes Benz GL320 CDI 6 Cyl 3.0L
  • 2017 - 2019 Mercedes Benz C43 AMG 4Matic 6 Cyl 3.0L
  • 2019 - 2020 Mercedes Benz A220 Base 4 Cyl 2.0L
  • 2014 Mercedes Benz SLS AMG Black Series 8 Cyl 6.3L
  • 2017 - 2018 Mercedes Benz E43 AMG 4Matic 6 Cyl 3.0L
  • 2012 - 2013 Mercedes Benz CLS63 AMG Base 8 Cyl 5.5L
  • 2007 - 2010 Mercedes Benz ML63 AMG Base 8 Cyl 6.3L
  • 2013 - 2015 Mercedes Benz SLS AMG GT 8 Cyl 6.3L
  • 2019 - 2020 Mercedes Benz E450 Base 6 Cyl 3.0L
  • 2020 Mercedes Benz Maybach S650 Base 12 Cyl 6.0L
  • 2012 - 2016 Mercedes Benz E550 4Matic 8 Cyl 4.7L
  • 2013 Mercedes Benz GL450 4Matic 8 Cyl 4.7L
  • 2017 - 2019 Mercedes Benz GLE43 AMG Base 6 Cyl 3.0L
  • 2016 - 2017 Mercedes Benz GLE63 AMG Base 8 Cyl 5.5L
  • 2019 Mercedes Benz GLE63 AMG Base 8 Cyl 5.5L
  • 2003 Mercedes Benz SL55 AMG Kompressor 8 Cyl 5.5L
  • 2006 - 2007 Mercedes Benz ML500 Base 8 Cyl 5.0L
  • 2016 Mercedes Benz GLE300d 4Matic 4 Cyl 2.1L
  • 2017 - 2018 Mercedes Benz GLC43 AMG 4Matic 6 Cyl 3.0L
  • 1997 Mercedes Benz E420 Base 8 Cyl 4.2L
  • 2010 - 2012 Mercedes Benz R350 Bluetec 4Matic 6 Cyl 3.0L
  • 1998 - 1999 Mercedes Benz S420 Base 8 Cyl 4.2L
  • 2015 Mercedes Benz E63 AMG 4Matic 8 Cyl 5.5L
  • 2015 Mercedes Benz ML400 4Matic 6 Cyl 3.0L
  • 2009 Mercedes Benz SL65 AMG Black Series 12 Cyl 6.0L
  • 2008 - 2009 Mercedes Benz R350 Base 6 Cyl 3.5L
  • 2000 - 2001 Mercedes Benz S500 Guard 8 Cyl 5.0L
  • 2012 Mercedes Benz SL550 Grand Edition 8 Cyl 5.5L
  • 2016 Mercedes Benz C450 AMG 4Matic 6 Cyl 3.0L
  • 2017 - 2018 Mercedes Benz SL450 Base 6 Cyl 3.0L
  • 2018 Mercedes Benz C350e Base 4 Cyl 2.0L
  • 2015 - 2016 Mercedes Benz E63 AMG S 4Matic 8 Cyl 5.5L
  • 2009 Mercedes Benz GL320 Bluetec 4Matic 6 Cyl 3.0L
  • 2019 Mercedes Benz Sprinter 1500 Base 4 Cyl 2.0L
  • 2017 - 2018 Mercedes Benz SLC43 AMG Base 6 Cyl 3.0L
  • 2010 Mercedes Benz S400 Hybrid 6 Cyl 3.5L
  • 2018 Mercedes Benz S450 Base 6 Cyl 3.0L
  • 2012 Mercedes Benz GL550 4Matic 8 Cyl 5.5L
  • 2017 - 2018 Mercedes Benz SLC300 Base 4 Cyl 2.0L
  • 2012 Mercedes Benz SL550 Avantgarde 8 Cyl 5.5L
  • 2011 Mercedes Benz E350 Bluetec 6 Cyl 3.0L
  • 2006 Mercedes Benz CLS500 Base 8 Cyl 5.0L
  • 2018 Mercedes Benz E63 AMG S 4Matic 8 Cyl 4.0L
RC104 Coolant Reservoir Cap - Direct Fit, Sold individually
AC Delco®
RC104 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: ACRC104
Vehicle Info Required to Guarantee Fit
$17.99
Product Details
Notes : 18 P.S.I. radiator surge tank capWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : GM Original Equipment SeriesReplaces OE Number : 25697430, 25713159, 25730221, RC82, RC86Recommended Use : OE ReplacementProduct Fit : Direct Fit
Expansion Tank Cap - Replaces OE Number 17-11-7-639-020
GenuineXL®
Expansion Tank Cap - Replaces OE Number 17-11-7-639-020
Part Number: GXL17117639020
Vehicle Info Required to Guarantee Fit
$27.99
Product Details
Warranty : 24-month or 24,000-mile limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : GenuineXL OE ReplacementReplaces OE Number : 17-11-7-639-020Recommended Use : OE ReplacementProduct Fit : Direct Fit
Expansion Tank Cap - Replaces OE Number MJA4440BA
Eurospare®
Expansion Tank Cap - Replaces OE Number MJA4440BA
Part Number: T4ZMJA4440BA
Vehicle Info Required to Guarantee Fit
$19.08
Product Details
Warranty : 24-month or 24,000-mile limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Replaces OE Number : MJA4440BARecommended Use : OE ReplacementProduct Fit : Direct Fit
82599 Coolant Reservoir Cap - Direct Fit, Sold individually
Dorman®
82599 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: RB82599
Vehicle Info Required to Guarantee Fit
$5.99
Product Details
Warranty : Lifetime Dorman limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is 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.

Series : Help SeriesProduct Fit : Direct Fit
RC87 Coolant Reservoir Cap - Direct Fit, Sold individually
AC Delco®
RC87 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: ACRC87
Vehicle Info Required to Guarantee Fit
$15.49
Product Details
Notes : 18 P.S.I. radiator surge tank cap; Use with new pink long life coolantWarranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : GM Original Equipment SeriesReplaces OE Number : 25713160Recommended Use : OE ReplacementProduct Fit : Direct Fit
68249136AA Coolant Reservoir Cap - Sold individually
Crown®
68249136AA Coolant Reservoir Cap - Sold individually
Part Number: 68249136AA
Vehicle Info Required to Guarantee Fit
$10.49
Product Details
Warranty : 1 year or 12,000-mile Crown limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

55111074AA Coolant Reservoir Cap - Direct Fit
Crown®
55111074AA Coolant Reservoir Cap - Direct Fit
Part Number: 55111074AA
Vehicle Info Required to Guarantee Fit
$10.99
Product Details
Notes : Use existing hardwareWarranty : 1 year or 12,000-mile Crown limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Replaces OE Number : 55111074, 55111074ABRecommended Use : OE ReplacementProduct Fit : Direct Fit
J3223202 Coolant Reservoir Cap - Direct Fit, Sold individually
Crown®
J3223202 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: J3223202
Vehicle Info Required to Guarantee Fit
$8.99
Product Details
Notes : Fits Bottle J5362920Warranty : 1 year or 12,000-mile Crown limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Replaces OE Number : 3223202Recommended Use : OE ReplacementProduct Fit : Direct Fit
15060681 Coolant Reservoir Cap - Direct Fit, Sold individually
AC Delco®
15060681 Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: AC15060681
Vehicle Info Required to Guarantee Fit
$8.99
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Series : GM Original Equipment SeriesRecommended Use : OE ReplacementProduct Fit : Direct Fit
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Top Rated Products

AC Delco 13502353 Coolant Reservoir Cap - Direct Fit, Sold individually
$9.99( Review)
As described fit like a glove, fast shipping overall very pleased
Paul M.
VERIFIED PURCHASER
Gates 31406 Coolant Reservoir Cap - Direct Fit, Sold individually
$10.49( Review)
Looked and fit just like the original one did.
David M.
VERIFIED PURCHASER

Shopping for Coolant Reservoir Cap

Coolant Reservoir Cap Shopping Info

What Is a Coolant Reservoir Cap?

The engine coolant reservoir cap seals the coolant reservoir tank and prevents coolant contamination. It’s usually made of metal or plastic.

How Much Does a Coolant Reservoir Cap Replacement Cost?

A coolant reservoir replacement costs around $50 and $250. Coolant reservoir cap prices may vary depending on their brand, quantity, warranty, and series.

Shop for Aftermarket Coolant Reservoir Caps on CarParts.com

Need to replace your coolant’s reservoir cap? Find exactly what you need here at CarParts.com with just a few clicks!

We have top-notch coolant reservoir caps for various makes and models. They’re sold individually and in sets of 6. What’s more, they come with a low-price guarantee, so it doesn’t matter if you’re shopping while on a tight budget. You’re sure to get an OE-grade coolant reservoir cap replacement at a price that won’t break the bank.

We source all our replacement parts and accessories from top aftermarket brands. Our team of industry experts handpicked every coolant reservoir cap in our catalog to make sure you’re getting the best replacement part for your vehicle.

In a hurry to repair your ride? Take advantage of our fast shipping. All our coolant reservoir caps are on hand and ready to ship from strategically located warehouses across the country. Order now, and get your new coolant reservoir cap in a matter of days. If you have any questions about our products, our friendly customer service team is available round the clock to help you out.

Enter your ride’s exact details into our easy-to-use vehicle selector to view compatible coolant reservoir cap replacements. Then, use our filters to narrow down your search according to the brand, price range, and feature you prefer. Check out our catalog and shop now!

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Helpful Automotive Resources

Is Coolant the Same as Antifreeze? Plus Other Related Questions Answered
Is Coolant the Same as Antifreeze? Plus Other Related Questions AnsweredIf this seems confusing, don’t worry. Below, we’re going to cover the ins and outs of coolant, including the subtle yet important difference between the terms coolant and antifreeze. Many professionals use the terms coolant and antifreeze interchangeably because they mean almost the same thing—almost. What’s the Difference Between Coolant and Antifreeze?