The Eaton Fuller Retainer Pump Element, part number 4303773, is a genuine OEM transmission component designed for universal use across Fuller manual transmissions. Also referenced as a Rotor Retainer, this single-piece service part carries OEM part number 4303773 and cross-references to Mack application number 3088-4303773. Sold individually, it is a direct-fit replacement for the pump retainer position in compatible Fuller transmissions. Call us to confirm proper fit for your specific transmission model before ordering.
Features
Genuine Eaton Fuller OEM transmission component
Part number 4303773, also cross-referenced as Mack 3088-4303773
Functions as the rotor retainer in compatible Fuller manual transmissions
Designed for universal Fuller manual transmission fitment
Sold individually as a direct-fit service part
Used in 126 Eaton Fuller models
