Tester Adapter
$17.89
BFNG
Part # 12426S
4.7(47 reviews)Tester Adapter
Fits Audi, BMW, Mercedes-Benz & more — 2,383 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 PriceFree ShippingOrders $99+
WarrantyManufacturer backed
Easy Returns30-day policy
Canadian OwnedShipped across Canada
Will this fit your vehicle?
Select your vehicle to check fitment.
BFNG 12426S Vehicle Fitment
Fits 2,383 vehiclesThis Tester Adapter fits Audi, BMW, Mercedes-Benz, Dodge vehicles.
2007 Mercedes-Benz S550
2005-2006 Mercedes-Benz C55 AMG
2005-2006 Mercedes-Benz CL65 AMG
2005-2006 Mercedes-Benz SL65 AMG
2005-2006 Mercedes-Benz SLK350
2005-2006 Mercedes-Benz SLK55 AMG
2005-2006 Mercedes-Benz SLR McLaren
2003-2006 Mercedes-Benz CLK500
2003-2006 Mercedes-Benz E500
2003-2006 Mercedes-Benz SL55 AMG
2001-2006 Mercedes-Benz CL55 AMG
2001-2006 Mercedes-Benz CLK55 AMG
2001-2006 Mercedes-Benz S55 AMG
2000-2006 Mercedes-Benz S430
1999-2006 Mercedes-Benz E55 AMG
1998-2006 Mercedes-Benz CL500
1998-2006 Mercedes-Benz CL600
1997-2006 Mercedes-Benz C230
1996-2006 Mercedes-Benz E320
1994-2006 Mercedes-Benz C280
1994-2006 Mercedes-Benz S350
1994-2006 Mercedes-Benz S500
1994-2006 Mercedes-Benz S600
1994-2006 Mercedes-Benz SL500
1994-2006 Mercedes-Benz SL600
BFNG 12426S Specifications
- End 1 Inside Diameter
- 1.56 in
- Fittings Included
- No
- Prop 65
- WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
- End 2 Outside Diameter
- 1.58 in
- Hose Included
- No
- Prop 65
- ADVERTENCIA: Riesgo de cáncer y daños reproductivos - www.p65warnings.ca.gov
BFNG 12426S Interchange Numbers
This part replaces and is compatible with the following part numbers
Interchange Numbers
12426S12426S1242612426S12426
BFNG 12426S Product Description
Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.
Key Features
- Adapters meet EPA standards for recommended fleet coverage.
- Check adapter application chart for specific makes and models
- BAR Certified adapters
- Adapter check's a fuel cap's ability to hold pressure.
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 12426S. 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 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 12426S
What vehicles does the BFNG 12426S fit?
The BFNG 12426S fits 50 vehicle applications including 2007 Audi Q7, 2001-2007 BMW 525i, 2007 Mercedes-Benz S550, 2001-2006 BMW 325Ci, 2001-2006 BMW 325i and 45 more. Check the full fitment list above to confirm your vehicle.
What parts does the BFNG 12426S replace?
The BFNG 12426S is a direct replacement for 12426S, 12426S, 12426, 12426S, 12426. See the full interchange list for all compatible replacements.
What are the shipping options for the BFNG 12426S?
Shipping options for the BFNG 12426S 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 12426S?
For current pricing on the BFNG 12426S, 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.
