The Eaton Fuller synchronizer assembly A-5401 or A5401 is the main shaft half unit used in 450 and 550 series manual transmissions. This synchro assembly handles gear engagement on the main shaft, letting the mating gears match speed for smoother, quieter shifts and reduced grind. Approximate dimensions are 2.25 in. high by 6.5 in. wide by 6.875 in. long. Eaton lists cross references including 1091912, 1695272C1, 5310902, S-8821 and A5401-SP, so counter staff can confirm it against an existing part number. It is a genuine Eaton part sold by Pro Gear and Transmission. Not sure this is your part? Give us a call to confirm proper fit for your transmission.
Features
Eaton Fuller synchronizer assembly, part number A-5401 or A5401
Main shaft half for 450 and 550 series manual transmissions
Approx. dimensions 2.25 in. H x 6.5 in. W x 6.875 in. L
Cross references include 1091912, 1695272C1, 5310902 and S-8821
Genuine Eaton part sold by Pro Gear and Transmission
Tech Specs
- Part type: Synchronizer Assembly, Main Shaft Half
- Application: Eaton Fuller 450/550 series manual transmission
- Height: 2.25 in.
- Width: 6.5 in.
- Length: 6.875 in.
- Cross reference: 1091912, 1695272C1, 5310902, A5401-SP, S-8821
