Product Description

Daiwa L10-7701 Pinion Gear | Brass Main Shaft Gear

Part Name: Pinion Gear Part Number: L10-7701 Manufacturer: Daiwa

Product Overview

Restore the drive train efficiency of your classic Daiwa spinning reel with the Daiwa L10-7701 Pinion Gear. This genuine replacement part is the critical helical gear that meshes with the main drive gear, converting the rotation of the handle into the spinning motion of the rotor.

Machined from high-strength brass/alloy, this pinion gear is designed to withstand the high torque and friction of heavy load retrieval. If your reel feels "rough," makes a grinding noise, or if the rotor fails to spin while the handle turns, worn teeth on the pinion gear are a common cause. This part also houses the main shaft, ensuring precise alignment during drag engagement.

Model Compatibility

This part is engineered for specific large-frame and "Long Cast" Daiwa spinning reels from the 1990s. It is frequently paired with the B78-9501 Drive Gear.

Fits the following Reel Series:

• Daiwa EL2600X, EL4000X

• Daiwa Regal-Z Series (BL & T Models):

  • RG-Z4500BL

  • RG-Z5000BL

  • RG-Z4500T

  • RG-Z5000T

• Daiwa Procaster (PS) Series:

  • PS4000BL

  • PS2600 (Check schematic for specific sub-model sizing)

• Daiwa Regal-S Series:

  • RG-S4500T

  • RG-S5000T

Technical Specifications & Reference

• Material: Machined Brass / Hardened Alloy

• Installation Location: Central Gear Shaft (Runs through the Rotor Nut and Ball Bearing)

• Function: Rotor rotation and Main Shaft stabilization.

Alternate Part Numbers:

• mikesreelrepair.com: L10-7701

• Related Parts:

  • Pinion Collar: B88-0001 (Often sits immediately above the gear)

  • Drive Gear: B78-9501 (The main gear that turns this pinion)

  • Rotor Nut: 340-8301

Technician's Note: Gears wear in pairs. If you are replacing the Pinion Gear (L10-7701), it is highly recommended to also inspect and likely replace the Drive Gear (B78-9501). Mixing a new pinion with an old, worn drive gear will result in a "gear-y" feel and rapid wear of the new part. Apply quality reel grease to the helical teeth before reassembly. Consult www.reelschematic.com for the exact stacking order of the pinion bearings and washers.