Manufacturer | Trade Names | Where to Look | How to Decode | Example |
American | ACE,American, American Hardware, America's Best, Apex, Aqua Temp, AquaTherm, Aquamatic, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle,The Earl's Energy Conservation Water Heater, The Earl's Energy Saver Plus, Envirotemp, Four Most, Hotmaster, Hotstream, King-Kleen, King-Line, Master Plumber, Nationaline, Neptune, Penquin, Premier Plus, Premier Plus Self Cleaning Prestige, ProLine and ProLine Plus, Quaker, Quick-Flo, Raywall, Revere, Riveria, Sands, Sentinal, Servi-Star, Shamrock, Special Deluxe, Standard,Super Eagle, Super-Flo, Supreme, Sure-Fire, Thoro-Clean, Tru-Test, Tru Value,U.S. Supply, Whirlpool, XCL Energy Saver | Serial# – 1st 4 digits | 1st 2 digits = year 2nd2 digits= week | 8906xxx= made in the 6th week of the year 1989 |
Apollo Comfort Products | Apollo | |||
Bradford-White | BradfordWhite, JetGlas | Serial# – 1st 2 letters | 1st letter = year starting with A as 1984. This letter is on a 20-year loop. A=1984 or 2004 C=1986 or 2006 E=1988 or 2008 G=1990 or 2010 K=1993 M=1995 P=1997 T=1999 X=2001 Z=2003 2ndletter = month with January (A) through December (M) | JMxxx= made in the year 1992 (J) in the month of December (M) A=January C=March E=May G=July J=September L=November |
Crispaire | E-tech | |||
Giant Factories | Date on tank label | |||
GSW Water Heating | JohnWood, GSW, Moffat, Superflue, Medal | Serial# – 1st 4 digits | 1st & 2ndnumber = year, 3rd& 4th number = month | 8901xxx= made in the year 1989 in the first month, January |
Heat Transfer Products | HeatTransfer | |||
Lochinvar | EnergySaver, Golden Knight, Knight | |||
Marathon | Marathon | Serial# – 1st 4 digits | 1st & 2nddigit = month, 3rd& 4th digit = year | 0189xxx= made in the year 1989 in the first month, January |
Maytag | Maytag |
If the number’s there but you’re still concerned it’s been stolen, use the serial number to try to locate the bike on sites such as Bike Index. Serial number aside, there are other ways to tell if the bike you’ve purchased – or want to purchase – is actually stolen goods. These include: The price of the bike seems too good to be true. The serial number may be stamped on the frame's wooden base, immediately under the keys. To the right and left of the keys are two end cheek blocks, which are each secured down with a giant bolt or screw, which passes through the piano's keybed, both of which must be removed, to access the interior of the piano (see video, above).
Manufacturer | Trade Names | Where to Look | How to Decode | Example |
Rheem | AquaTherm, General Electric, Hotpoint, Professional, Rheem, Vanguard, WesternAuto | Serial# – 1st 4 digits | 1st & 2nddigit = month, 3rd& 4th digit = year | 0189xxx= made in the year 1989 in the first month, January |
Richmond | Richmond | Serial# – 1st 4 digits | 1st & 2nddigit = month, 3rd& 4th digit = year | 0189xxx= made in the year 1989 in the first month, January |
Ruud | Professional,Ruud | Serial# – 1st 4 digits | 1st & 2nddigit = month, 3rd& 4th digit = year | 0189xxx= made in the year 1989 in the first month, January |
Sears, Roebuck and Co. | Kenmore | |||
A.O.Smith Water Products | National,A.O. Smith, Glascote, Perma-Glas | Serial# – 2nd, 3rd, 4th characters | 2nd position(letter) = month (A being January through M being December) 3rd& 4th position (numbers) = year | AJ89xxx= made in October (J) of 1989 |
State Industries | State | Serial# – 1st 3 characters | first letter = month (A being January through M, being December), 2ndand 3rd position (numbers) = year | J89xxx= made in October of 1989 |
Summit Manufacturing Mortex | SunTherm |
In this photo you can see both the serial number (15033303xx) and the frame number (49374x). The serial number embeds a date code, so you can tell it was assembled in March, 2015. This helps the manufacturer track defects in assembly as well as sales data for warranty verification.
Manufacturer | Trade Names | Where to Look | How to Decode | Example |
U.S. Craftsmaster Water Heaters | Ace,American Hardware, America's Best, Apex, Aqua Temp, Aqua Therm, Aquamatic,Best, Best Deluxe, Craftmaster, De-Limer, Deluxe, Eagle, The Earl's EnergyConservation Water Heater, The Earl's Energy Saver Plus, Envirotemp, FourMost, Hotmaster, Hotstream, King-Kleen, King-Line, Master Plumber, Nationaline, Neptune, Penquin, Prestige, Pro-Line, Pro-Line Plus, Quaker,Quick-Flo, Raywall, Revere, Riviera, Sands, Sentinal, Servistar, Shamrock,Special Deluxe, Standard, Supereagle, Super-Flo, Supreme, Sure-Fire, Thoro-Clean, True-Test, Tru Value, U.S. Craftmaster, U.S. Supply, Whirlpool,XCL Energy Saver | Serial# – 1st 4 digits | 1st 2 digits = year 2nd2 digits= week | 8924xxx= made in the 24th week of the year 1989 |
Vaugn Manufacturing Corp. | Sepco, Hydrohot, D.W. Whitehead |
Enter your Schwinn serial number in the box and click 'find' to see what date and year your Schwinn bike was manufactured.
This tool searches a database of Schwinn serial numbers and if it finds a match to your serial number then it will display the information available for your bike.
Notes: This tool works for Schwinn bikes from 1948 to 1982. All serial number records before 1948 were lost in a factory fire.
Serial Number Location
The serial number can typically be found in one of three places on a Schwinn made bicycle.
- The headtube
- The rear dropout
- Underneath the bottom bracket shell
Note: The serial number will always be found on the actual frame of the bike. In other words, it will not be found on a bike component (like a handlebar or a pedal).
Example Numbers
Schwinn serial numbers commonly have one of three formats:
- All numbers
- One letter followed by numbers
- Two letters followed by numbers
Here are some example numbers: 0465228 - F106791 - EB37868
What a serial number can tell you
The serial number on a Schwinn frame will tell you the date that frame was manufactured. It will not identify the model of the bike, only the year the frame itself was manufactured.
Giant Defy Serial Number To Find Age Range
Schwinn Bikes > Serial Numbers