The Dometic HYD-J11 Spigot Cap & Gasket assembly seals the fresh water fill port on your RV's Dometic HYD Series water system. This essential component prevents contamination, debris, and water loss when the fill spigot is not in use. If your cap is cracked, lost, or no longer seals properly, this OEM replacement restores the integrity of your water system.

Key Features

• OEM Dometic replacement cap and gasket assembly
• Designed specifically for HYD-J11 spigot systems
• Prevents water spillage and system contamination
• Includes integrated gasket for watertight seal
• Easy hand-tightening installation—no tools required
• Compatible with HYD Series fresh water systems

Technical Specifications

Specification	Details
Part Number	4453001676
Manufacturer	Dometic
Component Type	Spigot Cap & Gasket Assembly
Series Compatibility	Dometic HYD Series
Installation	Hand-tightened to spigot outlet

Frequently Asked Questions

Q: Will this cap fit my specific HYD model?

A: The HYD-J11 cap is designed for Dometic HYD Series water systems. Check your system's model number or spigot outlet diameter to confirm compatibility. Our support team can help verify the right part for your RV.

Q: What happens if I use the spigot without the cap?

A: Operating without a cap risks water loss, system contamination from dust or debris, and potential damage to the fill port threads. We recommend always keeping a cap installed when the spigot is not actively in use.

Q: Is the gasket replaceable separately?

A: This assembly includes the gasket as an integrated component. If only the gasket needs replacement in the future, contact our support team for gasket-only options or a new cap assembly.

Why Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part is genuine OEM Dometic stock, backed by expert support from RV technicians who understand your system inside and out.