Locking Fuel Cap
$23.44
BFNG
Part # MGC940T
4.7(47 reviews)Tethered Fuel Cap
Fits Mercedes-Benz — 19 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 MGC940T Vehicle Fitment
Fits 19 vehiclesThis Tethered Fuel Cap fits Mercedes-Benz vehicles.
2014-2015 Mercedes-Benz GLK350
2014 Mercedes-Benz C300
2013-2017 Mercedes-Benz E400
2012-2016 Mercedes-Benz E350
2010-2013 Mercedes-Benz S400
2008 Mercedes-Benz S450
BFNG MGC940T Specifications
- Prop 65
- WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
- Thread Type
- Male
- Thread Diameter
- 59.69 mm
- Gasket or Seal Pre-Installed
- Yes
- Prop 65
- ADVERTENCIA: Riesgo de cáncer y daños reproductivos - www.p65warnings.ca.gov
- Thread Diameter
- 2.35 in
BFNG MGC940T Interchange Numbers
This part replaces and is compatible with the following part numbers
Interchange Numbers
4940BTMGC940T2124700105703-5557MGC940T4940BT
BFNG MGC940T Product Description
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Key Features
- Manufactured from durable, long-life materials
- Independently tested for emission control
- Passes all state and federal emissions tests
- Reduces air pollution with proper sealing and venting
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
About BFNG
Shop BFNG Fuel Tank Cap at Autrex with vehicle fitment details, current pricing, and checkout options for the BFNG MGC940T. 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 MGC940T
What vehicles does the BFNG MGC940T fit?
The BFNG MGC940T fits 6 vehicle applications including 2013-2017 Mercedes-Benz E400, 2012-2016 Mercedes-Benz E350, 2014-2015 Mercedes-Benz GLK350, 2014 Mercedes-Benz C300, 2010-2013 Mercedes-Benz S400 and 1 more. Check the full fitment list above to confirm your vehicle.
What parts does the BFNG MGC940T replace?
The BFNG MGC940T is a direct replacement for 4940BT, MGC940T, 2124700105, 703-5557, MGC940T and 1 other part numbers. See the full interchange list for all compatible replacements.
What are the shipping options for the BFNG MGC940T?
Shipping options for the BFNG MGC940T 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 MGC940T?
For current pricing on the BFNG MGC940T, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.
Is the Tethered Fuel Cap a direct fit replacement?
Yes, the Tethered Fuel Cap by BFNG is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.
What warranty does the Tethered Fuel Cap come with?
The Tethered Fuel Cap comes with the standard BFNG manufacturer warranty. Please check the product specifications for exact warranty terms.
