Description Reviews (0) One of the 2 sizes of o-rings for sealing the instrument panel gauges. For the small o-ring, see 17H1642 Reviews There are no reviews yet. Be the first to review “17H2105 Dash Gauge O-Ring, 3-1/2” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.