D'Addario LE040PB Guitar string

D'Addario LE040PB Phosphor Bronze Single String — .040" Replacement for Acoustic Guitar

This .040" gauge acoustic guitar string comes from D'Addario's Loop End Singles line, wound with phosphor bronze over a hexagonally shaped high-carbon steel core. D'Addario introduced phosphor bronze to string making in 1974, and this single-string format carries that same warm, bright tonal character into a replacement and custom-set format. Instead of buying a full six-string pack when only one string breaks or when a player wants a non-standard gauge mix, the individual string lets musicians buy exactly what they need. The loop-end termination fits acoustic guitars equipped with loop-end bridge pins, making it a direct swap for factory-installed strings. Designed, engineered, and manufactured in the USA at D'Addario's New York production facility.

Technical Specifications

• Gauge: .040" / 1.02 mm
• Material: Phosphor Bronze
• Winding Type: Round Wound
• Finish: Coated
• Number of Strings: 1
• Compatible With: Acoustic Guitar
• Country of Manufacture: USA

Who This String Is For

The LE040PB is the right choice for acoustic guitar players who need a single replacement string or want to assemble a custom gauge set without purchasing a full pack. It suits players who prefer the warm, bright tone of phosphor bronze — a material D'Addario has been making since 1974 — and who play steel-string acoustic guitars with loop-end bridge pins. The string works well for flatpickers, fingerstyle players, and singer-songwriters who break individual strings and want a reliable, factory-spec replacement. It's also a practical option for luthiers and techs building custom sets for clients with specific tonal preferences.