The Chelsea 378431-4 is a hex head cap screw (.375"-16 x .500") used in Chelsea 721 Series and 823 Series power takeoff units. The manufacturer's illustrated parts lists for both the PTO-721-Series and PTO-823-Series reference this fastener directly, with quantities per assembly ranging from 2 to 6 pieces depending on the specific installation point. Part number 378431-4 or 3784314 are references to the same screw. Sold individually by Pro Gear and Transmission. Call us to confirm the correct quantity needed for your application.
Used in these Chelsea PTO models
Features
Hex head cap screw, .375"-16 thread x .500" length
Genuine Chelsea PTO hardware part number 378431-4 or 3784314
Listed in the Chelsea PTO-721-Series illustrated parts manual
Listed in the Chelsea PTO-823-Series illustrated parts manual
Sold individually; confirm quantity required per assembly before ordering
Tech Specs
- Thread Size: .375"-16 UNC
- Length: .500"
- Head Style: Hex Head
- Applicable Series: Chelsea 721 Series PTO, Chelsea 823 Series PTO
- Sold As: Each
