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Your cart is empty.Sierra's 18-7234 Flame Arrestor is designed for use with Mercruiser 4 and 6 Cylinder stern drives. It features a 7.000" outside diameter and a 2.280" height. It does not have any vent tubes. Includes one flame arrestor per package. It is interchangeable with Mallory 9-31101 and Mercruiser Stern Drive 805016A1. Each Sierra product meets or exceeds the original equipment part it replaces.
Jeff D Smith
May 24, 2025
Metal rather the the fragile standard Mercruiser item
Customer
May 18, 2025
Fit and is doing the job. Will most likely buy a second to match on my other engine.
S. Kipp
January 23, 2025
Half inch taller than my stock one better airflow good quality
PE
November 22, 2024
Arrestor looks good. My fault for not fully understanding the description but I would have needed the arrestor that has 3 bolt holes in the top for my MPI. Looking at the picture I thought the 3 little dents in the cover were holes but my mistake. Being in a hurry to go boating I took the “arrestor†part out of the new one and put it in the old housing. Working just fine.
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