Eaton Fuller 4303666 Overdrive Countershaft Gear

Product Overview

Genuine Eaton Fuller 4303666 overdrive countershaft gear for supported manual transmissions.

Technical Identification

• Replaces: 4304508 and 4304315 in supported catalogs
• Typical quantity: Two in twin-countershaft groups
• Known kit usage: K-3746

Application and Service Notes

Confirm the transmission, countershaft design, physical tooth count and helix, bore/key fit, mating overdrive mainshaft gear, quantity, ratio set, and serial range. Inspect the matched pair, bearings, keys, and mating gear.

Please confirm 4303666, the transmission tag, overdrive position, teeth, countershaft configuration, mating gear, quantity, and ratio before ordering.

Technical References and OEM Documentation

• Eaton Inforanger — Countershaft Group Showing 4303666
• Eaton Download Center