Fender Serial Number Formats
US + YY + digits(2008-present)American-made Fenders. "US" followed by a 2-digit year and production sequence.
MX + YY + digits(2000-present)Mexican-made Fenders (Ensenada). "MX" followed by a 2-digit year.
N + digit + digits(1990-1999)USA production from the 1990s. The digit after "N" is the year (N5 = 1995).
Z + digit + digits(2000-2009)USA production from the 2000s. The digit after "Z" is the year (Z5 = 2005).
JD + YY + digits(2004-present)Made in Japan. "JD" followed by a 2-digit year.
S/E prefix + digits(1976-1988)CBS-era and early post-CBS American Fenders.
4-6 digit number(1950-1976)Pre-CBS and early CBS Fenders used sequential numbers on the neck plate.
Where to Find Your Fender Serial Number
- ▶On the headstock (front or back, depending on era)
- ▶On the neck plate (bolt-on neck models, especially pre-1976)
- ▶On the bridge plate (early 1950s Telecasters)
- ▶Stamped on the neck heel (hidden, remove the neck to see)
Tips
- ▶Fender neck pockets often have a handwritten date stamp — this is the most accurate way to date a vintage Fender.
- ▶Mexican Fenders switched from the MN prefix (1990s) to MX (2000s).
- ▶Japanese Fenders are highly regarded and can be identified by single-letter prefixes (A through V) for different year ranges.
Spotting Counterfeit Fender Guitars
Fender counterfeits are common, especially fake Stratocasters and Telecasters sold online. Since Fender uses bolt-on necks, counterfeiters can mix genuine and fake parts. Here's what to look for.
Headstock & Logo▼
- ▶The Fender "spaghetti" logo (vintage style) and "transition" logo should match the era of the guitar. A modern CBS-style logo on a "1960s" guitar is a red flag.
- ▶Logo placement should be consistent — the Stratocaster or Telecaster model name should be positioned correctly relative to the string tree.
- ▶The headstock shape should match the era: pre-CBS (small), CBS (large), and modern (medium). Shape inconsistencies are a giveaway.
- ▶Check the headstock decal under magnification — authentic Fender decals have crisp, clean edges. Fake decals often show pixelation or rough edges.
Serial Number & Date Stamps▼
- ▶Cross-reference the serial number on the headstock with the date stamp on the neck heel. These dates should be within a few months of each other.
- ▶Pot codes (stamped on potentiometers inside the control cavity) should match the era. The format is source-date: e.g., 137-6504 = CTS, 4th week of 1965.
- ▶Neck pocket date stamps should be penciled (handwritten) on vintage Fenders. Printed or stamped dates on a claimed vintage guitar are suspicious.
- ▶Serial numbers on neck plates (pre-1976) should be cleanly stamped. Uneven depth or spacing suggests a replacement or counterfeit plate.
Hardware & Pickguard▼
- ▶Stratocaster pickguards have 11 screws (post-1965) or 8 screws (pre-1965). A wrong screw count for the claimed era is a red flag.
- ▶Telecaster body thickness should be 1.75 inches. Thinner bodies often indicate a counterfeit.
- ▶Bridge saddles should match the era: vintage bent-steel on older models, block saddles on modern Americans.
- ▶Tuning machines should match the era — Kluson-style on vintage, modern sealed tuners on new models. Mismatched tuners suggest a parts guitar.
Body & Neck▼
- ▶Check the body routing through the pickguard screw holes or pickup cavities. Fender uses specific routing patterns (e.g., swimming pool vs. individual pickup routes) that vary by era and model.
- ▶The neck pocket should fit tightly. Excessive gaps, shims (other than factory shims), or misalignment are red flags.
- ▶The truss rod nut should be the correct type for the era — vintage-style slot-head or modern bullet-style.
Weight & Feel▼
- ▶Genuine Fenders use specific tone woods: alder or ash bodies, maple or rosewood fretboards. The weight and resonance should feel solid.
- ▶Check for finish quality — genuine Fender nitrocellulose finishes (vintage) or polyester/polyurethane (modern) should be smooth and even.
- ▶Fret quality should be consistent — level, well-crowned, and with smooth ends. Rough or uneven frets indicate low-quality manufacturing.
Frequently Asked Questions
What year is my Fender Stratocaster?▼
Look at the serial number prefix: US = American (year from next 2 digits), MX = Mexican (year from next 2 digits), N = 1990s USA (digit after N = year), Z = 2000s USA (digit after Z = year). For older Strats, the serial on the neck plate can be cross-referenced with known year ranges.
Where was my Fender guitar made?▼
The serial number prefix tells you: US = USA (Corona, CA), MX/MN = Mexico (Ensenada), JD/CIJ/MIJ = Japan, IC = Indonesia, CY = China, KC = Korea. If there's no letter prefix, it's likely a vintage American-made instrument.
What is the difference between MIM and MIA Fender?▼
MIM ("Made in Mexico," Ensenada factory) and MIA ("Made in America," Corona, CA) are the two main Fender production tiers. MIA guitars use higher-quality components, have more hand-finishing, and include features like rolled fingerboard edges and deep-body contours not found on MIM models. Serial numbers starting with MX are MIM; US are MIA. Mexican Fenders offer excellent value and some players prefer specific MIM eras for their particular sound and feel.
How do I date a pre-CBS Fender?▼
Pre-CBS Fenders (before 1965) used sequential serial numbers on the neck plate. These ranges overlap significantly, so also check the neck date stamp (penciled on the heel), pot codes, and pickup dates for more accurate dating.
Is my Fender guitar authentic?▼
Check that the serial number format matches a known Fender pattern, the headstock decal is correct for the era, the body contours and routing match the model, and the hardware is period-correct. Use our decoder to verify the serial produces a plausible result.
Fender Links & Resources
Fender Gallery
More About Fender
Leo Fender founded the Fender Electric Instrument Manufacturing Company in Fullerton, California in 1946. He had no formal training as a guitarist or luthier — he was an electronics repairman who approached the guitar as an engineering problem. The result was the Telecaster (1950), the first mass-produced solid-body electric guitar, followed by the Stratocaster in 1954. Both remain in continuous production today, essentially unchanged in their fundamental design.
CBS Corporation acquired Fender in January 1965 for $13 million. The "CBS era" that followed is widely considered the lowest point in Fender quality. Production volumes increased dramatically while the skilled workforce that Leo had trained gradually turned over. Players came to distinguish "pre-CBS" Fenders (1950-1964) as meaningfully superior, a distinction that remains one of the largest valuation gaps in the vintage guitar market.
A management-led buyout returned Fender to independent ownership in 1985 for $12.5 million — less than CBS had originally paid. The new ownership rebuilt quality and introduced a systematic serial number approach that makes modern Fender instruments among the easiest to date. The Ensenada, Mexico plant opened in 1990 and has since become the highest-volume Fender facility in the world.
Today Fender operates factories in the United States, Mexico, Japan, and China, serving different market segments. The Custom Shop in Corona, California produces hand-built instruments that are consistently ranked among the finest electric guitars made anywhere in the world.