FLEOR 1Pcs 22 Fret Bass Neck Maple Fingerboard Rosewood Matte Satin for JB Jazz Bass Guitar Neck Parts Replacements|Guitar Parts & Accessories| - AliExpress
PJMO-FAT Replacement Neck for Jazz Bass® or Precision Bass® — Allparts Music
Amazon.com: BexGears 4 String Electric Bass Guitar Neck 21 Fret Bolt On composite ebony fingerboard: Musical Instruments
Roasted Maple Jazz Bass Neck, 20 Medium Jumbo Frets, 9.5, Maple, C Shape - Fred's Guitar Parts