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Tester Adapter - main product image
BFNG
Part # 12406S
4.7(47 reviews)

Tester Adapter

Fits Ford, Mercury — 178 vehicle applications

Call for Price

Contact us at 1-866-461-2787 for pricing

available

Contact us at 1-866-461-2787 for pricing

Call for Price
Free ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
Will this fit your vehicle?

Select your vehicle to check fitment.

BFNG 12406S Vehicle Fitment

Fits 178 vehicles

This 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

12406S12406S1240612406S12406

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

4.7out of 5

Based on 47 reviews

  • 538
  • 46
  • 31
  • 21
  • 11
  • Direct fit, no surprises
    Marc 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 Canada
    Jen 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 side
    Steve 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 again
    Amrit 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 again
    Daniel 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.

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