Kenmore Water Heater Age Checker
Decode your Kenmore serial number to find the manufacturing date, age, and full specs. Free and instant - no account needed.
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Finding Your Kenmore Serial Number
Check these four spots on your Kenmore water heater
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try removing access panels or checking behind the temperature dial.
Kenmore Serial Number Examples
Don't worry if yours looks different - Kenmore has multiple formats and our system can decode most variations.
About Kenmore Water Heaters
Kenmore water heaters represent one of America's most recognized appliance brands, exclusively available through Sears and related retail channels for decades. Launched in 1927, the Kenmore brand built its reputation by offering quality products at accessible prices with the convenience of Sears' nationwide retail presence and service network. Kenmore water heaters are actually manufactured by various leading producers including A.O. Smith, Rheem, and others under contract to meet Sears' specifications. This partnership model allows Kenmore to leverage specialized manufacturing expertise while maintaining quality control standards and offering competitive warranty coverage. Though Sears' retail footprint has contracted in recent years, Kenmore products remain available through select retailers and online channels.
Kenmore water heater models span the full range of residential technologies including conventional gas and electric tank systems, power-vented models, and high-efficiency heat pump hybrids. Capacity options range from 30 to 80 gallons to accommodate varying household sizes and hot water demands. The Power Miser series features enhanced insulation and efficient burner designs to reduce operating costs while maintaining reliable hot water delivery. Electric models incorporate quality heating elements and adjustable thermostats for precise temperature control. Select Kenmore units achieve ENERGY STAR certification through advanced efficiency features, and some models include electronic displays with diagnostic capabilities to simplify troubleshooting and maintenance monitoring.
Kenmore water heaters typically come with competitive warranty protection including 6 to 12-year coverage on tanks and components depending on the specific model. Service support is available through authorized Kenmore service providers and independent contractors familiar with the product line. Because Kenmore units are manufactured by various companies, serial number formats and model nomenclature vary based on the actual producer, requiring careful identification when ordering parts or seeking service. Replacement components are available through Sears Parts Direct, appliance parts suppliers, and in some cases directly from the original manufacturer. Owners can access installation instructions, user manuals, and warranty information through Kenmore's online support resources.
Where to find the serial
Kenmore water heaters have the rating plate on the upper third of the tank. Older units (pre-2010) carry a Sears model number prefix like 153.xxxxxx that maps to the actual manufacturer (usually State, A.O. Smith, or Whirlpool depending on the era). The serial decoding follows the manufacturer's format.
What the serial actually looks like
Why the age is worth knowing
Kenmore as a brand effectively ended for water heaters after Sears began closing stores in 2018. Existing Kenmore units are still serviceable through plumbing parts suppliers, and warranty claims (if any time remains) now route through Cleveland-Cliffs which acquired the Kenmore trademark portfolio. After year 10 these are end-of-life regardless of badge.
Quick answers for this brand
Where do I get warranty service on a Kenmore water heater now?
Sears Home Services still handles some Kenmore warranty work in markets where it still operates, but coverage is hit or miss. The actual manufacturer (State, A.O. Smith, or Whirlpool depending on your unit) typically won't honor warranty on a Kenmore-badged tank since the warranty was issued by Sears. For most units past 8 years, replacement is the more practical path.
How do I tell who actually built my Kenmore?
Look at the Sears model number prefix on the rating plate. Prefix 153 usually means State Industries, 449 often means A.O. Smith, and other prefixes map to different OEMs. The serial format will match the manufacturer's standard pattern - YYWW for State and A.O. Smith, slightly different for others.
Are Kenmore parts still available?
Standard parts (anode rods, dip tubes, heating elements, thermostats, T&P valves) are universal and easy to source from any plumbing supply or hardware store. Brand-specific parts like the original gas valve assembly are harder, but a competent plumber can usually fit a universal replacement that meets code.
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