Strombecker 8434 Pinion Gear Set – 14 Tooth for 3/32" Shaft – Pair

Product Overview

Original vintage Strombecker No. 8434 pinion gear set featuring two 14-tooth pinions designed for the larger 3/32" (.0925") motor shaft used by many classic Pittman, Kemtron, and similar motors.

These are genuine vintage replacement parts and are well suited to restorations, period-correct race builds, and custom projects using early slot car motors.

Product Details

• Brand: Strombecker
• Part Number: 8434
• Gear Type: Pinion gear
• Tooth Count: 14 tooth
• Shaft Fit: 3/32" / approximately .0925"
• Typical Motor Fit: Pittman, Kemtron, and similar vintage motors
• Not Compatible With: .078" / 2mm Mabuchi-style motor shafts
• Quantity: 2 pinions
• Packaging: Original vintage factory card
• Condition: New old stock – unused

Mounting Notes

These pinions are designed as a sliding fit on the appropriate shaft and should be secured after installation. Depending on the application, they may be fixed using solder, epoxy, or retaining compound such as Loctite.

Soldering is often preferred on suitable metal pinions because it provides a durable connection while still allowing the gear to be removed later by applying heat. This also avoids the stress that an excessively tight press-fit gear can place on a vintage motor shaft or armature.

Ideal For

• Vintage slot car restorations
• Pittman and Kemtron motor applications
• Period-correct race builds
• Custom vintage slot car projects
• Collectors seeking original Strombecker replacement parts

A useful original component for vintage builders working with classic 3/32" shaft motors.

Fast & Fair Shipping

We normally ship by the next business day. Shipping is charged as close to our actual cost as possible. If our checkout system significantly overestimates the shipping charge, we refund the excess.