Dorman - HD Solutions Diesel Exhaust Fluid (DEF) Filler Cap P/N:904-5501
$36.99
(You save)
Keep diesel exhaust fluid sealed inside its tank with the Dorman - HD Solutions Diesel Exhaust Fluid (DEF) Filler Cap 904-5501. This heavy-duty cap closes off the DEF filler opening and helps keep dirt and debris out of the system. It fits many Mack truck models, among them the 2009-2013 Mack CHU, 2009-2013 Mack CXU and 2009-2013 Mack GU7. See the Buyer's Guide tab for the full list and engine details.
Direct replacement: Dorman designed this DEF filler cap to duplicate the original cap's fit and function on the specified vehicles.
Replaces a worn cap: A dependable choice when the factory cap is leaking or has worn out.
Durable construction: Made from quality materials and engineered with durability and dependable performance in mind.
Trustworthy quality: Backed by Dorman's team of product experts in the United States and more than a century of automotive experience.
A DEF filler cap may need replacing if it is cracked, broken or missing, if it no longer closes securely, or if fluid is leaking or crystallizing around the filler neck. When a damaged cap is the cause, this heavy-duty replacement installs on the filler neck in place of the original.
This part cross-references / interchanges with the following part numbers:
572.3006, 16MF51M, 21148722, 21148728
Frequently Asked Questions
What does a DEF filler cap do?
It closes off the filler opening of the diesel exhaust fluid tank. This helps keep the fluid contained and keeps dirt and debris out of the DEF system.
Which trucks does the Dorman 904-5501 fit?
It fits many Mack truck models, including the 2009-2013 Mack CHU, 2009-2013 Mack CXU and 2009-2013 Mack GU7. Check the Buyer's Guide tab for the full list.
What are signs my DEF filler cap may need replacing?
Signs include a cracked, broken or missing cap, a cap that won't close securely, or fluid leaking or crusting around the filler neck. Inspect the cap and neck to confirm the cause.
Is this a direct replacement for the original cap?
Yes. Dorman designed this heavy-duty DEF cap to match the original cap's fit and function on the specified vehicles.
What part numbers does it interchange with?
It cross-references to 572.3006 (also written 5723006), 16MF51M, 21148722 and 21148728.
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Dorman
Dorman - HD Solutions Diesel Exhaust Fluid (DEF) Filler Cap P/N:904-5501
Cap and seal your diesel exhaust fluid tank with the Dorman - HD Solutions Diesel Exhaust Fluid (DEF) Filler Cap 904-5301. It closes off the DEF tank fill opening after refilling, helping keep dirt,...
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.Direct...
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.Direct...
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.Direct...
This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.Direct...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are 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.
