UCELICE RV Gas Control Valve 161109 — Replacement for Suburban 525042, DSI SW-Series Fit

UCELICE 161109 is a direct-spark-ignition gas control valve designed to replace Suburban 525042 valves and restore reliable hot water on SW-series RV water heaters.

If your Suburban SW-series water heater won’t ignite or is delivering inconsistent hot water, the UCELICE 161109 gas valve is a direct-fit replacement engineered for those DSI models. Built from durable metal components and configured for 3/8" NPT inlet to 1/4" Loxit outlet connections, this valve restores safe gas flow and ignition control without complicated modifications. It’s intended as a like-for-like swap for many SW4D through SW16D models (see compatibility notes) and is supplied as a single gas control assembly to simplify repairs while keeping your RV’s water heater operating properly.

How do I know this valve fits my Suburban SW water heater?

Compatibility is based on model and serial ranges for Suburban SW DSI (direct spark ignition) series units. The 161109 replaces the factory 525042 valve on many SW4D, SW6D, SW10D, SW12D and SW16D variants when the appliance falls inside specified serial ranges.

• Designed for SW4D, SW6D family and SW10D, SW12D, SW16D units listed in product details.
• Fits units with 3/8" NPT inlet and 1/4" Loxit outlet plumbing.
• Check your heater’s model/serial plate for compatibility notes and serial cutoffs in the product listing.
• Photograph existing valve and connections before removal to confirm match.

What tools and steps are needed for installation?

Installation is straightforward for anyone comfortable working on RV water heaters, but always disconnect power and gas before starting. Typical steps include removing access panels, documenting wiring and tubing positions, unfastening the old valve, and installing the replacement while observing correct orientation and leak-tight connections.

• Turn off gas and electrical power to the heater first for safety.
• Use basic hand tools: wrenches for NPT connections and pliers for Loxit fittings.
• Photograph wiring/tubing layout to ensure exact reconnection.
• Leak-test gas fittings and verify proper ignition before finalizing reassembly.

What are the performance and build characteristics of the 161109 valve?

The UCELICE 161109 valve is constructed from high-quality metal for strength and long service life, and it controls gas flow precisely for reliable ignition cycles. It’s engineered to meet the operational demands of RV water heaters, helping restore consistent hot water delivery when matched with compatible SW-series units.

• Durable metal body resists wear and supports long-term use in mobile environments.
• Direct spark ignition compatible for instant ignition control in DSI models.
• 3/8" NPT inlet and 1/4" Loxit outlet for factory-style plumbing connections.
• Made to replace Suburban part 525042 where applicable, simplifying repairs.

Are there safety or warranty considerations I should know?

Always follow safety protocols: power and gas must be off during service, and all fittings should be leak-checked after installation. This replacement part is sold as a mechanical component; consult your RV manufacturer and local codes for service intervals, and consider professional installation if you are not experienced working with gas appliances.

• Disconnect electrical power and gas before starting any work.
• Perform a gas leak test on all connections after installation.
• Keep manufacturer documentation and serial numbers for warranty or service records.
• Professional installation is recommended if unsure about gas appliance repairs.

Who is this for: The UCELICE 161109 valve is aimed at RV owners, fleet maintainers, and service technicians who need a reliable replacement gas control for Suburban SW-series DSI water heaters. It suits DIY mechanics comfortable with basic plumbing and electrical safety, as well as professionals looking for a durable, direct-replacement part to restore consistent hot water in motorhomes, travel trailers, and other recreational vehicles.