This is a A-400-6436 Inner Tube PN: 400-6436Main Description As Following : A-400-6436 Inner Tube PN: 400-6436 Found in Section & Models : Driveline > Driveline Components, Bondioli & Pavesi 100 Series: Size 4, Driveline > Shafting & Tubing, Bondioli & Pavesi 100 Series: Size 4 Associated Items : New Also This is An Aftermarket Product And : Weasler alternative to original part. Dim B (2): BP4 Length: 59 1/16" - 1500 mm