Rheem 41V50 50-gallon power miser viii gas water heater Parts

A Rheem 41V50 50-gallon power miser viii gas water heater is built around a storage tank, a gas burner system, and safety and control components that heat water and vent combustion gases. Common service parts include the thermocouple, drain valve, and access door.

Main parts you will typically find

• Tank (stores hot water; insulated to reduce heat loss)
• Gas control valve/thermostat (sets temperature and regulates gas flow)
• Burner assembly (burner, orifice, and manifold that create the flame)
• Pilot and thermocouple (pilot flame ignition and flame-sensing safety)
• Flue/vent system (draft hood and flue baffle on many models to move exhaust out)
• Cold water inlet and dip tube (brings cold water to the bottom of the tank)
• Hot water outlet (delivers heated water to the home)
• T&P relief valve (temperature and pressure safety relief)
• Drain valve (used for draining and flushing sediment)
• Access panels/doors (covers the burner and service area)

Parts on this model page (examples)

These are examples of parts we list for Rheem 41V50 that match common repairs:

Part	What it does	When you replace it
Drain valve 100108605	Lets you drain/flush the tank	Valve leaks, won’t open/close, sediment flushing is impossible
Thermocouple (listed as “Thrmcouple”)	Shuts gas off if pilot goes out	Pilot won’t stay lit, weak/erratic pilot flame
Door	Covers the burner/service opening	Door is missing, bent, or won’t secure properly

Why it matters

Knowing the major components helps you troubleshoot safely and order the right replacement part. For example, a pilot that will not stay lit often points to the thermocouple or pilot flame issues, while water at the base of the heater can be a drain valve leak (not always a tank problem).

Ordering the right replacement part

• Match the model number 41V50 on the rating plate
• Compare the part name and identifiers in the parts list
• Replace gas and safety components with the correct listed part
• If you are shopping beyond the parts shown here, search by model on Sears PartsDirect

Last updated: February 2026

A 50-gallon gas water heater like the Rheem 41V50 typically costs $600 to $2,100 for the unit, and about $1,000 to $3,000 installed (unit plus labor and standard materials). Total price depends most on venting type, efficiency level, and installation complexity.

What drives the price up or down

• Venting style: atmospheric vent units usually cost less than power-vented models.
• Efficiency level: higher-efficiency designs cost more up front.
• Warranty tier: longer warranty models typically cost more.
• Installation complexity: tight spaces, gas line changes, or vent changes add labor.
• Local code items: permits, seismic strapping, drip pan, and expansion tank requirements vary.

Typical cost ranges (unit vs. installed)

Cost item	Common range	What’s included
Water heater unit (50-gal gas)	$600 to $2,100	Basic to higher-efficiency or power-vented
Labor and standard materials	$400 to $1,000+	Removal/haul-away, fittings, gas connector, venting checks
Total installed cost	$1,000 to $3,000	Often higher if venting or plumbing must be modified

How we recommend budgeting for a Rheem 41V50 replacement

• Plan for a mid-range total if you are keeping the same location and venting style.
• Budget extra if the installer must change venting, add an expansion tank, or update shutoff valves.
• If you are repairing (not replacing) the heater, common service items include a leaking drain valve; see the drain valve 100108605.

Why it matters

A realistic budget helps you compare quotes accurately. Many higher totals come from venting changes and code upgrades, not just the tank price.

You can order model-matched replacement parts from the parts list for Rheem 41V50, or search by model number on Sears PartsDirect.

Last updated: February 2026

A 50-gallon gas water heater like the Rheem 41V50 lasts 8 to 12 years. Regular flushing, correct temperature settings, and fixing small issues (like a leaking drain valve) help you get the full service life before normal tank corrosion ends the heater’s life.

Typical lifespan and what changes over time

Most tank-style gas water heaters wear out from internal tank corrosion and sediment buildup. As the unit ages, you often see slower recovery, more noise during heating, and less consistent hot water before a tank leak develops.

Common end-of-life symptoms

• Rusty or discolored hot water
• Popping or rumbling sounds from sediment
• Water around the base of the heater
• Reduced hot-water capacity or longer reheat times
• Frequent pilot outages or burner shutdowns

Maintenance that helps you reach the full lifespan

• Drain a few gallons periodically to reduce sediment
• Test the temperature and pressure (T&P) relief valve for proper operation
• Keep the burner area clean and unobstructed
• Check fittings and the drain outlet for slow leaks
• Set temperature to a practical level (many homes use about 120°F)

Parts that can improve reliability (but do not stop tank corrosion)

Replacing small components can restore operation and reduce nuisance leaks, but it will not prevent an aging tank from eventually failing.

Symptom	What to check	Example part available for 41V50
Drips at drain outlet or valve will not close	Drain valve and threads	Drain valve 100108605
Pilot will not stay lit	Thermocouple and pilot flame quality	Browse the parts list for the correct thermocouple

Why it matters

Once the tank itself begins leaking, replacement is the practical fix. Knowing the 8 to 12 year service life helps you decide when a repair (like a drain valve) makes sense versus planning for a new water heater.

You can order replacement parts for your Rheem 41V50 from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026