This is a A-700709044 Outer Tube PN: 700709044Main Description As Following : A-700709044 Outer Tube P.N: 700709044 Standard Triangular Outer Profile Tube, size 6, 6 CV. O.D.: 54 mm, Wall Thickness: 3.7 mm. Length: 1500 mm. Replaces: Bondioli & Pavesi No. BP125171500. Fits Bondioli & Pavesi 650, 660, 670 Series: Size 6 CV; 100 Series 80 EL CV: Size 6 Stocked As: A-BP125171500 Found in Section & Models : Driveline (by application) > Driveline Components, Case-IH BALER, SQUARE: 8530, Case-IH BALER, SQUARE: 8545 (SN