We ARE the manufacturer......... Detroit Muscle Technologies 
 
Description/contents:
Fuel filler tube to tank grommet for 70-74 E bodies; Barracuda, Challenger, 71-74 B Bodies; Satellite, Charger AND 70 B bodies; Charger, Coronet, Satellite, Roadrunner.

Note: This is the correct grommet for 70 B bodies. Our other more common 64-74 grommet will also work and is the exact same physical dimensions but this correct grommet has an extra sealing lip that was added by Mopar for all 70 and later models.

Mopar part# 3404182

This grommet is made for us to our specifications and materials. We are not a reseller of a product this important that we don't know the origin or real specs.

2.900" OD, 2.350" Groove OD, 2.000" ID, 1.150" Ht
 
Materials
Just like OEM. 
 
Shipping
First Class Mail.  We combine shipping.

IMPORTANT SHIPPING NOTICE
Shipments outside the US take at least 7-14 days.
Shipments to Canada take at LEAST 14 days and sometimes as long as 30 days.
We ship First Class International Mail for all shipments under 4lbs and under 1 cubic foot.
We ship GlobalPriority Mail, for shipment over 4lbs or 1 cubic foot.
BOTH methods take the same amount of time.
There are NO tracking numbers shipping outside the US unless you pay additional for UPS or Global Express Mail.
UPS or Global Express Mail have EXPENSIVE brokerage fees of $35+ plus local taxes.