Dorman 54018 Engine Coolant Reservoir Cap - Radiator

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Dorman 54018 Engine Coolant Reservoir Cap - Radiator

Brand	Dorman 54018
Position	Radiator
Attachment Type	Twist Lock
Color	Black
Diameter	2.1
Length (In)	0.88 in
Material	Plastic
Material	Rubber
Maximum Pressure Rating	18
Package Contents	1 Coolant Cap
Pressure Release Lever	No
Pressurized	Yes
Type	Twist
Vented	No
Width (in)	2.1 In
Fits	Kia, Hyundai, and Dodge · 102 vehicles

Direct replacement. Precisely engineered to replace a lost or cracked coolant reservoir cap.

Twist-lock design. Provides a secure, pressurized seal for the cooling system.

Plastic and rubber. Built with durable materials for dependable sealing performance.

Cross-references 2544126100 for the same application. See all 1.

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Not what you need? See all Engine Coolant Reservoir Cap options

Engine Coolant Reservoir Cap Replacement

Dorman 54018 is a direct replacement engine coolant reservoir cap engineered to restore a secure seal when the original cap is cracked, damaged, or missing. Built with plastic and rubber construction, this black twist-lock cap is pressurized and rated for 18 psi to match the needs of the cooling system.

Compatible With select Hyundai and Kia applications, including Hyundai Santa Fe, Tucson, Veracruz, Accent, Veloster, and Kia Soul, Forte5, Sportage, Sorento, Rio, and Optima applications that use this style of cap. Dorman 54018 is also cross-referenced to OE part number 2544126100 for the same application.

Key Features

Direct replacement engine coolant reservoir cap
Twist-lock attachment for secure installation
Pressurized design with 18 psi maximum pressure rating
Plastic and rubber construction
Black finish
No vent and no pressure release lever
Measures 2.1 in. diameter

Product Details

This coolant reservoir cap is built to replace the original cap on vehicles that require a pressurized twist-style design. The Dorman 54018 helps maintain proper cooling system sealing and pressure retention, which is important for consistent coolant reservoir operation. It is a practical replacement for many Hyundai and Kia models, including applications such as 2001-2012 Hyundai Santa Fe, 2010-2015 Hyundai Tucson, 2013-2017 Hyundai Veloster, 2017-2019 Kia Soul, and 2014-2018 Kia Forte5.

What It Helps Solve

Cracked coolant reservoir cap
Lost or missing reservoir cap
Improper sealing at the coolant reservoir
Pressure loss in the cooling system cap interface
Fitment issues from a worn twist-lock cap

Installation Notes

Verify reservoir cap style, diameter, and pressure rating before installation. This part uses a twist-lock attachment and is not vented. Confirm vehicle-specific fitment for your Hyundai or Kia application, especially on automatic transmission vehicles where the notes specify reservoir-cap usage.

Quality Assurance

Dorman manufactures this cap as a direct-fit replacement part for the listed applications, with specifications matched to the original design requirements. Part number 54018 is intended to restore proper reservoir sealing performance when the OE cap is no longer serviceable.

This part fits 102 vehicles

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

Year	Make	Model	Liters	Cylinders	Position	Notes
2019	Kia	Soul	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2018	Kia	Forte5	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2018	Kia	Soul	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2017	Hyundai	Veloster	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2017	Kia	Forte Koup	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2017	Kia	Forte5	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2017	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2017	Kia	Soul	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2016	Hyundai	Veloster	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2016	Kia	Forte Koup	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2016	Kia	Forte5	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2016	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Hyundai	ix35	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Hyundai	Veloster	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Kia	Forte Koup	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Kia	Forte5	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2015	Kia	Sportage	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Hyundai	Veloster	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Kia	Forte Koup	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Kia	Forte5	1.6L	L4	Radiator	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2014	Kia	Sportage	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2013	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2013	Hyundai	Veloster	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2013	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2013	Kia	Sportage	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2012	Kia	Sportage	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Borrego	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2011	Kia	Soul	—	—	N/A	To 7/09/11; Packaging Type: Box
2011	Kia	Sportage	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Hyundai	Tucson	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Borrego	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Magentis	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Optima	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2010	Kia	Soul	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Borrego	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Magentis	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Optima	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2009	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Magentis	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Optima	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2008	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Hyundai	Veracruz	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Magentis	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Optima	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Rondo	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2007	Kia	Sorento	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Dodge	Attitude	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Dodge	Verna	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Hyundai	Accent	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Kia	Optima	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Kia	Rio	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2006	Kia	Rio5	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2005	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2004	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2003	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2002	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
2001	Hyundai	Santa Fe	—	—	N/A	Fits washer fluid reservoir cap on automatic transmission vehicles.
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Directly replaces or cross-references 1 part number

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

2544126100