Cylinder Head Intake Boot O-Rings, Size 40 x 2.6 (Set of 4). Replaces OEM # 91301-371-005 / 91325-413-830 These are Used Where the Manifolds Attach to the Cylinder Heads.

Fits: Honda CB400A (1978),
CB400TI (1978-81),
CB400TII (1978-79),
CB450SC (1982-83/1985-86),
CB450T (1982)

Note: Most Bikes Used 2 of the 4 O-Rings in this kit.