Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Blackmer · Hardware & Fasteners
381816
In stock · ships from Knoxville
This is a 3-inch flange gasket designed for Blackmer positive displacement and sliding vane pumps.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 15 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Fits 3-inch flanged connections on the listed Blackmer pump and strainer models. Not a universal gasket; verify your pump model before ordering.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It creates a tight, leak-proof seal between flanged connections to prevent fluid or gas loss. Replacing this gasket is a standard maintenance step when the old one is worn, cracked, or during pump rebuilds to keep the system safe and efficient. It is commonly found on gas trailers and industrial transfer equipment.
Part Number: 381816
3' FLANGE GASKET, BLACKMER PUMP
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
