Eaton Fuller hex plug P/N 4303656 is a general-use threaded plug for Eaton transmission and power take off applications. It has 9/16-18 threads and a hex socket head, so it seats and torques with a standard internal hex (Allen) key rather than an external wrench. This plug crosses to Fuller references including 15917, 3947312, 5314508, and HF4303656. It is a small but exact fit part, so matching the thread and port on your unit matters. Sold by Pro Gear and Transmission. Not sure this is your part? Give us a call and we will help confirm proper fit for your application.

• Part number: 4303656
• Brand: Eaton Fuller
• Type: General-use hex plug
• Thread: 9/16-18
• Head: Hex socket head
• Cross reference: 15917, 3088-4303656, 3947312, 5314508, 4303656-SP

Cross reference numbers: 15917, 3088-4303656 or 30884303656, 3947312, 4303656-SP or 4303656SP, 5314508, FUL 4303656 or FUL4303656, ZBF4303656, HF4303656. Application category: Power Take Off (PTO) assembly and transmission use.