![Weld-On Boss for Mazda Oil Filler Caps](http://turbo-spec.com/cdn/shop/products/Rotary-oil-filter-cap-conmbo-alluminium_1100x_58f9a3f1-745d-48c7-9a99-c7c64090e1ea_1100x1100.jpg?v=1644690759)
- Weld-on boss to suit our rotary shaped oil filler caps and standard Mazda oil filler caps. Great for making custom catch cans, dry sump tanks, overflow bottles etc.
- The weld-on bosses are available in 6061-T6 aluminium and 304 stainless steel.
- They sit 15mm high, and have a 38mm diameter x 3mm long spigot on the bottom to locate into the tank it's to be welded to.
- Please note the rotary shaped oil cap pictured is not included in this listing, but check our other listings for oil filler caps and combo deals for weld-on bosses with caps.
- Parts from Franklin Engineering Ltd. are such a great price because we are designers, the manufacturers and the seller of the parts - there is no middleman or resellers. You're buying top quality direct from the manufacturer.