

Tester Adapter
Fits Ford, Mercury — 178 vehicle applications
Contact us at 1-866-461-2787 for pricing
Contact us at 1-866-461-2787 for pricing
Call for PriceSelect your vehicle to check fitment.
BFNG 12406S Vehicle Fitment
Fits 178 vehiclesThis Tester Adapter fits Ford, Mercury vehicles.
1978-1980 Ford Fiesta
1976 Ford E-150 Econoline Club Wagon
1975-1976 Ford F-150
1975-1976 Ford F-500
1973-1976 Ford F-100
1973-1976 Ford F-250
1973-1976 Ford F-350
1973-1974 Ford B-100
1971-1976 Ford Bronco
1971-1974 Ford E-100 Econoline
1971-1974 Ford E-200 Econoline
1971-1974 Ford E-300 Econoline
BFNG 12406S Specifications
- Fittings Included
- No
- Prop 65
- WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
- End 1 Inside Diameter
- 1.54 in
- Hose Included
- No
- Prop 65
- ADVERTENCIA: Riesgo de cáncer y daños reproductivos - www.p65warnings.ca.gov
- End 2 Outside Diameter
- 1.57 in
BFNG 12406S Interchange Numbers
This part replaces and is compatible with the following part numbers
Interchange Numbers
BFNG 12406S Product Description
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Key Features
- Check adapter application chart for specific makes and models
- Adapters meet EPA standards for recommended fleet coverage.
- Adapter check's a fuel cap's ability to hold pressure.
- BAR Certified adapters
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
About BFNG
Shop BFNG Fuel Cap Tester Adapter at Autrex with vehicle fitment details, current pricing, and checkout options for the BFNG 12406S. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Ratings & Reviews
Based on 47 reviews
- 538
- 46
- 31
- 21
- 11
- Direct fit, no surprisesMarc D.Verified BuyerMay 28, 2026
Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.
Installed on 2016 Ram 1500
- Shipped fast across CanadaJen P.Verified BuyerMay 14, 2026
Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.
Installed on 2014 Chevrolet Silverado 1500
- Good part, double-check your sideSteve R.Verified BuyerApr 30, 2026
Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.
Installed on 2017 Ford F-150
- Quiet againAmrit S.Verified BuyerApr 19, 2026
Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.
Installed on 2015 GMC Sierra 1500
- Would buy againDaniel L.Mar 22, 2026
Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.
Installed on 2013 Dodge Durango
Frequently Asked Questions — BFNG 12406S
What vehicles does the BFNG 12406S fit?
The BFNG 12406S fits 13 vehicle applications including 1978-1980 Ford Fiesta, 1976-1977 Mercury Capri, 1971-1976 Ford Bronco, 1976 Ford E-150 Econoline Club Wagon, 1973-1976 Ford F-100 and 8 more. Check the full fitment list above to confirm your vehicle.
What parts does the BFNG 12406S replace?
The BFNG 12406S is a direct replacement for 12406S, 12406S, 12406, 12406S, 12406. See the full interchange list for all compatible replacements.
What are the shipping options for the BFNG 12406S?
Shipping options for the BFNG 12406S are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
What is the price of the BFNG 12406S?
For current pricing on the BFNG 12406S, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.
Is the Tester Adapter a direct fit replacement?
Yes, the Tester Adapter by BFNG is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.
What warranty does the Tester Adapter come with?
The Tester Adapter comes with the standard BFNG manufacturer warranty. Please check the product specifications for exact warranty terms.

