Pioneer | PN: HR4760 or HR4760D, Base Arm Gear Assembly for RP4500SAR, RP4500SARG and RP4500SATR,

Includes:

• PN: HR4760 (old version), Base Arm Gear Assembly OR HR4750D (new version)
• To determine if you have an “old version”, HR4760 or a “new version”, HR4760D Base Arm Gear, you must look at the Channel Steel welded to the gear.  If the ends of the Channel Steel are “notched” you have an old version, if the end of the Channel Steel is “square” you have the new version.  See attached image for additional details.