Stainless Steel Tilt Tube May require (1) SLN-2 and (1) SLN-1 lock nut(s) to complete installation Fits: Mercury/Mariner 1.035" O.D. x 12-1/8" long for 3, 4, & 6 cyl Mercury & Mariner OE 826125A1, 99170A1, 99170A2