Keep your washer solvent sealed, clean, and where it belongs with the Dorman - HELP Washer Fluid Reservoir Cap 54100. This snap-on plastic cap closes off the windshield washer reservoir, keeping dirt, debris, and evaporation out so the pump can draw fluid reliably. It's a direct-fit replacement for a huge range of GM cars, trucks, and SUVs — including the 2005-2009 Buick Allure, 1987-2005 Buick LeSabre, 2002-2014 Cadillac Escalade, and 1985-2005 Chevrolet Astro. See the Buyer's Guide tab for the full application list.
- Direct-fit design: engineered to match the original cap's fit and function on the listed vehicles, so it installs without modification.
- Snap-on installation: a press-on reservoir cap type that seats quickly by hand.
- Durable materials: molded from quality black plastic built for reliable performance and long service life.
- Sensible replacement: a practical fix if your original cap is missing, cracked, or worn from heat and repeated use.
If a lost or broken washer cap is behind fluid loss or contamination, this replaces it.
Interchange: 12362515 · 12363335 · 12365372 · 22122272 · 22154968 · 22677855 · 25731418 · 88958101 · 88958102
Manufacturer part number 54100. Country of origin: China.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this cap do?
It seals the windshield washer fluid reservoir, keeping dirt and debris out and limiting evaporation so the washer pump can draw fluid reliably.
How does it install?
It's a snap-on reservoir cap type that presses onto the washer bottle neck by hand — no tools required.
Will it fit my vehicle?
It fits a wide range of GM applications like the Buick LeSabre and Cadillac Escalade. Check the Buyer's Guide tab to confirm your exact year, make, and model.
What is the cap made of?
It's molded from quality black plastic for reliable performance and long service life.
Which numbers does this cap replace?
It interchanges with 12362515, 12363335, 12365372, 22122272, 22154968, 22677855, 25731418, 88958101, and 88958102.
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