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2021 Toyota Avalon

2021 Toyota Avalon Coolant Reservoir Caps

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Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT51
Guaranteed to Fit
$6.99
Vehicle Fitment
  • 2021 Toyota Avalon Hybrid Limited 4 Cyl 2.5L FULL HYBRID EV-GAS (FHEV), Relief Pressure 19 Lb; Inverter Cooling System
  • 2021 Toyota Avalon Hybrid XLE 4 Cyl 2.5L FULL HYBRID EV-GAS (FHEV), Relief Pressure 19 Lb; Inverter Cooling System
  • 2021 Toyota Avalon Hybrid XSE 4 Cyl 2.5L FULL HYBRID EV-GAS (FHEV), Relief Pressure 19 Lb; Inverter Cooling System
Product Details
Notes : 16 PSI; 1.80 in. Width; 0.72 in. Valve OD; Threaded Attachment TypeWarranty : 12-month Motorad 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.

Material : Plastic and RubberRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT125
Guaranteed to Fit
$30.99
Vehicle Fitment
  • 2021 Toyota Avalon Hybrid Limited 4 Cyl 2.5L Engine Cooling System
  • 2021 Toyota Avalon Hybrid XLE 4 Cyl 2.5L Engine Cooling System
  • 2021 Toyota Avalon XSE Nightshade 6 Cyl 3.5L
  • 2021 Toyota Avalon Limited 6 Cyl 3.5L
  • 2021 Toyota Avalon XLE 4 Cyl 2.5L
  • 2021 Toyota Avalon Hybrid XSE 4 Cyl 2.5L Engine Cooling System
  • 2021 Toyota Avalon Touring 6 Cyl 3.5L
  • 2021 Toyota Avalon XLE 6 Cyl 3.5L
  • 2021 Toyota Avalon TRD 6 Cyl 3.5L
  • 2021 Toyota Avalon Limited 4 Cyl 2.5L
  • 2021 Toyota Avalon XSE 6 Cyl 3.5L
Product Details
Notes : 0.17 in. Cap Depth; 1.52 in. Filler Neck Inside Diameter; 7.38 in. Overall Height; Push Fit Attachment Type; Round Shape; Vented; Coolant Recovery SystemWarranty : 12-month Motorad 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.

Material : Plastic and RubberRecommended Use : OE ReplacementProduct Fit : Direct FitColor Finish : Black
Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDT37
Guaranteed to Fit
$7.99
Vehicle Fitment
  • 2021 Toyota Avalon XSE Nightshade 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
  • 2021 Toyota Avalon Limited 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
  • 2021 Toyota Avalon XSE 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
  • 2021 Toyota Avalon TRD 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
  • 2021 Toyota Avalon XLE 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
  • 2021 Toyota Avalon Touring 6 Cyl 3.5L Relief Pressure 16 lb.; Filler Tube
Product Details
Notes : 16 PSI; 1.97 in. Width; 1.30 in. Valve OD; 0.85 in. Cap DepthWarranty : 12-month Motorad 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.

Material : Metal and RubberRecommended Use : OE ReplacementProduct Fit : Direct Fit
Coolant Reservoir Cap - Direct Fit, Sold individually
Part Number: MRDST37
Guaranteed to Fit
$12.49
Vehicle Fitment
  • 2021 Toyota Avalon XSE Nightshade 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
  • 2021 Toyota Avalon Limited 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
  • 2021 Toyota Avalon XSE 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
  • 2021 Toyota Avalon TRD 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
  • 2021 Toyota Avalon XLE 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
  • 2021 Toyota Avalon Touring 6 Cyl 3.5L Relief Pressure 16 Lb; Located on Filler Tube
Product Details
Notes : 16 PSI; 1.65 in. Width; 1.24 in. Cap Depth; Quick Pressure ReleaseWarranty : 12-month Motorad 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.

Material : Plastic, Rubber, and SteelRecommended Use : OE ReplacementProduct Fit : Direct Fit
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Product Questions & Answers

Q:Is this a push on or screw on cap?
Catie V.
A:BEST ANSWERHi Catie, thanks for initiating contact. This is a screw-on cap. This type of cap is designed to securely attach to the coolant reservoir, ensuring proper sealing and pressure regulation within the cooling system. If your vehicle information matches this product, use the link below to order while the part is in stock. Enjoy shopping! https://www.carparts.com/coolant-reservoir-cap/motorad/mrdt37?can=CPGG4850_CSQA_20240816 Show less
Grace G.
 
1 Question, 1 AnswerView all Q&As >

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Is Coolant the Same as Antifreeze? Plus Other Related Questions Answered
Is Coolant the Same as Antifreeze? Plus Other Related Questions AnsweredIf you go to purchase a gallon of coolant, there’s a good chance it will say anti-freeze/coolant on the side. Over the years, the automotive industry has adopted the trend of using these two terms interchangeably. But as was mentioned, anti-freeze is, in fact, one of the ingredients that make