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Mast Bracket Assembly, C-320, C-34, C-36, C-380, C-42

Part #: Z3273
Mast bracket assembly used on the Catalina 320's non-furling and furling mast, Catalina 34 and Catalina 36 furling mast only and also the Catalina 42 non-furling masts. This bracket assembly is also used on Catalina 380 as a boom vang mast end bracket.

When used as a gooseneck the boom toggle in this most recent version has been changed from aluminum to a much more robust stainless steel investment casting. See "More Images" below to view the earlier version which is no longer available.

Known Usage:
C-320 non-furling mast
C-320 furling mast
C-34 furling mast
C-36 furling mast
C-42 non-furling mast (late 90's only)

Boom vang:
C-390 (some)
See annotated drawing at left for more information. (see the warnings and notes tab)
• Height: ~119mm (approximately ~4-3/4")
• Width: ~92mm (approximately ~3-5/8")
• Toggle Pin: ~14mm (approximately ~0.55")
• Width between fasteners: ~75mm

1) The vertical hole(s) in the gray aluminum mast casting may require drilling to a larger size as different pin designs have been used over time.

2) These parts are imported from France and are no longer in routine use. The replacement parts are made in small batches (likely ~5 or 10 units). The dimensions we offer were taken directly from actual parts. But the parts vary from one part to the next. We have noticed that in each batch the holes are machined at a slightly different distance apart or not all of the slag was removed or may contain voids in the casting. I am happy to fly to France for you and supervise the production of a perfect replacement mast bracket. Obviously that would be very expensive. Lead time would also be considerable since every marine business in France is near a French wine region!

Be prepared to machine the mounting holes in the new replacement casting longer (oval) to match the holes in your mast. Do not simply drill the holes in your mast larger!