Product Description

SHIMANO 105EL IDLE GEAR WASHER (BNT1647)

Protect Your Level Wind Gears

The Shimano 105EL Idle Gear Washer (Part No. BNT1647) is a small but essential shim washer found in the level wind drive train of the Shimano Calcutta series. Positioned typically on the post that holds the white plastic Idle Gear, this washer prevents the gear from rubbing directly against the reel frame or the retaining clip (E-clip).

By reducing friction and maintaining proper vertical spacing, this washer ensures the idle gear meshes perfectly with the drive gear and the worm shaft gear. Missing this washer often leads to a "clicking" noise in the level wind or premature wear on the soft plastic teeth of the idle gear.

Product Specifications

• Part Name: Idle Gear Washer

• Manufacturer: Shimano

• Part Number (MPN): BNT1647

• Schematic Code: 105EL

• Material: Stainless Steel / Copper (Shim material varies by batch)

• Installation Position: Under or Over the Idle Gear (Level Wind System)

Compatible Models

This part is engineered for the "B" series and "TE" (Total Efficiency) generations of the Calcutta, along with other round baitcasters of that era.

• Shimano Calcutta B Series:

  • CT 100 B, CT 101 B

  • CT 200 B, CT 201 B

  • CT 400 B

• Shimano Calcutta TE Series:

  • CTE 200 GT, CTE 201 GT

  • CTE 100 GT

  • CTE 200 DC (Digital Control)

• Shimano Cardiff Series:

  • CDF 100 A, CDF 200 A, CDF 300 A, CDF 400 A

• Shimano Corvalus:

  • CVL 200, CVL 300, CVL 400

Installation & Reference

To ensure this is the correct washer for your reel, please cross-reference the part number BNT1647 or the schematic code 105EL with your reel's service diagram.

• Schematic Diagrams: For detailed PDF schematics and part location verification, please visit www.reelschematic.com.

• Alternate Part Number: BNT1647

Installation Tip: This washer is usually secured by a tiny E-Clip (often Part No. BNT0032). When removing the idle gear to clean it, be very careful not to let this washer stick to the bottom of the gear (due to grease) and fall unnoticed. Without it, the idle gear may sit too low and bind against the frame.