They both make many different filters and they are definately not all interchangeable.mjsiega":7dgn2zhj said:I've used Mallory and Sierra interchangeably.
My Sierra catalog says the 18-7986-1 is a kit containing one of 18-7775 bracket and one of 18-7945 filter.marco422":17w9arsy said:The part number for the Sierra filter housing assembly is 18-7986-1.
marco422":1cwnrlq9 said:Can anyone tell me if the dimensions, threading and design of Racor & Sierra fuel filter elements allow them to be interchangeable?
Desolation Cruiser":bleh1ggy said:My Sierra catalog says the 18-7986-1 is a kit containing one of 18-7775 bracket and one of 18-7945 filter.marco422":bleh1ggy said:The part number for the Sierra filter housing assembly is 18-7986-1.
You can replace that filter with Racor kit #B32013 which contains one of filter number S3213 and one of Plastic see-thru reusable bowl for outboard engine use only.
I hope this helps.