Top 10 Locking Diesel Exhaust Fluid Cap DEF – Automotive Replacement Fuel Tank Caps

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1. Stant

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Medium, Stant 10856 Diesel Exhaust Fluid DEF Cap

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Stant #ad - With attachment strap. Oem replacement. Stant replacement diesel emissions fluid DEF cap. Fit type: Vehicle Specific. 2-5/16 inch diameter. Vented.
BrandStant #ad
ManufacturerStant #ad
Height3.5 Inches
Length3.5 Inches
Weight0.12 Pounds
Width3 Inches
Part Number10856
Model10856

2. JOJOY LUX

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JOJOY LUX Diesel Fuel Cap Compatible with Dodge Ram, Aluminum Factory Combo Pack, Magnetic Diesel Fuel Cap & DEF Cap for RAM 1500 2500 3500 Trucks 2013-2019

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JOJOY LUX #ad - Convenienteasy installation to replace the old with our dual O-ring system caps to protect your diesel engine from dirt, dust and grime. When refueling simply place the fuel cap against the steel fuel door and the magnet will conveniently hold it.

Package1*magnetic green ram diesel fuel Cap & 1* Blue DEF Cap compatible with Dodge Ram Exhaust Fluid. High qualityboth caps are cnc machined made from 6061-T6 Light weight Aluminum, for longer-lasting durability and reliability over your stock plastic cap. Applicationdiesel fuel caps used for 2013 -2019 ram 1500 2500 3500 diesel trucks with a capless fuel system, Cummins and Eco-diesel vehicles with 3. 0l v6 engines. Magneticneodymium magnet in bottom of fuel cap.
BrandJOJOY LUX #ad
ManufacturerJOJOY LUX #ad
Part NumberJ-Dodge TC
ModelJ-Dodge TC

3. Benefast

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BC3Z5J225KA Diesel Exhaust Fluid DEF Tank Reservoir Heater Assembly Kit Fits for Ford F-250 F-350 F-450 F-550 Super Duty 6.7L V8 2011-2016 Replacement# 904-372

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Benefast #ad - This diesel exhaust fluid DEF Reservoir Heater Assembly Kit includes tank seal and hardware kit. Customers can find the product you need accurately according to the oe number. Replacement ppart number: bc3z5j225ka, bc3z-5j225-l, em1506urh, 904372, bc3z5j225ka, 118826, BC3Z5J225L, 904-372.

Def reservoir is a reductant heater that enables scr selective catalytic reduction to function at low temperatures. Diesel exhaust fluid heater commonly called the "def heater", an electric heating element, this unit is located in the DEF Diesel Exhaust Fluid tank and actually contains the pickup tube for the reductant pump module, a temperature sensor, and an electrode-type level sensor. Symptoms of a bad or failing def hheater: - faulty connections at the def heater due to it's location and enviroment; - Faulty DEF Heater Element; - Reduced engine power, message center/instrument cluster displaying "Engine Power Reduced".

Def freezes easily and needs to be melted in the shortest possible time for SCR to reduce the amount of Nitrogen Oxides and release them into exhaust system lowering the concentration of nitrogen oxide in diesel emissions from engine. This diesel exhaust fluid heater fits for the following vehicles: f ord f-250 super duty 6. 7l v8 2011-2016, ford f-450 super duty 6. 7l v8 2011-2016, ford f-350 super Duty 6. 7l v8 2011-2016, ford f-550 super Duty 6.
BrandBenefast #ad
ManufacturerBenefast #ad
Part NumberBC3Z5J225KA 904-372 EM1506URH

4. DEF

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Billet Aluminum Green Fuel Cap Magnetic and Blue DEF Cap for Dodge Ram Cummins 2013-2017 Auto Parts

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DEF #ad - Improved reliability – both caps are carefully crafted with CNC billeted aluminum for longer-lasting durability and reliability over your standard plastic cap. Easy. Simply remove your old DEF cap from the tether and reattach your new fluid cap in its place.

Safe cap – neodymium magnet in bottom of dodge diesel fuel cap, when refueling simply place the fuel cap against the steel fuel door and the magnet will conveniently hold it. Both caps are crafted with anodized aluminum which won’t be impacted even after long-term exposure. Versatile compatibility – both caps are designed to fit 2013-2017 Dodge Ram Diesel Cummins and EcoDiesel trucks with 3.

0l v6 engines. Easy installation – installing your new cap takes seconds. Simply remove your old fuel cap and reattach your new fuel cap in its place. Airtight, precision fit – keep dirt from entering your fuel system thanks to our dual O-ring system of DEF cap that protectors your engine while you’re off road.
BrandDEF #ad
ManufacturerDEF #ad
Part Number4347559887
Model13
WarrantyManufacture warranty for 90 days after purchase date

5. Ronin Factory

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Ronin Factory Combo Pack Magnetic Diesel Fuel Cap + DEF Cap Accessory for Dodge RAM Truck 1500 2500 3500 2013-2018 with 6.7 Cummins EcoDiesel Easy Grip

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Ronin Factory #ad - A strong, rare earth magnet holds the ram Diesel cap to any metal surface on the truck during fill-ups. Save $$$ by purchasing the combo pack compared to buying individually.

The def cap features a smooth and easy to grip handle that will slide and lock into place with a smooth-as-butter feel! Machined from AIRCRAFT GRADE Aluminum and Anodized Green & Blue with laser logo to help ensure no fueling mix-ups. This combo set is compatible with dodge ram evap emission systems. Magnetic dodge ram diesel fuel cap keeps dirt & water out of your fuel tank on all Capless Dodge Ram Diesel Trucks 2013+ May not fit 2019 models. You will receive 1 ram diesel fuel cap easy grip & 1 RAM DEF Cap. O-rings are diesel compatible Green Diesel Fuel cap comes with 2 sizes of O-Rings for your preferred fit.
BrandRonin Factory #ad
ManufacturerRonin Factory #ad
Part Number9854 DEF DIESEL FUEL CAP
Model13

6. WHDZ

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WHDZ Ram Diesel Cap Magnetic Billet Aluminum Fuel Cap and Blue Cap Combo Ram def Cap Gas Cap

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WHDZ #ad - Upgrade your ram cummins or ecodiesel by adding our green fuel cap and blue cap to your Ram diesel engine today! Fuel cap - this ram fuel cap is crafted with anodized aluminum which wont be impacted even after long-term exposure.

Need to replace your old plastic fuel cap and blue caP with a CNC billeted aluminum cap from WHDZ. Carefully designed with enhanced durability, Buna-N Nitrile O-ring. Keep your engine running smoothly with an anodized aluminum FUEL CAP and blue CAP that is far more reliable and effective than the cheap red plastic cap that the manufacturer provides and your plastic diesel exhaust fluid cover. Green cnc billet aluminum and blue cnc billet Aluminum, good looking they are functional, this combo will keep dirt and debris out of the fuel system.
BrandWHDZ #ad
ManufacturerWHDZ #ad
Part Number60059003-US

7. choolo

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Choolo Diesel Fuel Cap for Dodge,Billet Aluminum Fuel Cap Combo Pack,Magnetic Ram Diesel Billet Aluminum Fuel Cap and DEF Cap Combo for RAM 1500 2500 3500 Trucks 2013-2020 with New Easy Grip Design

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choolo #ad - 1*magnetic green dodge ram diesel fuel cap and 1* blue DEF cap for Dodge Ram exhaust fluid. Diesel and def use laser engraving and use white paint, the font are clear and with hand feel.

For 2013~2019 dodge ram 1500 2500 3500 diesel trucks with a cap less fuel system, Cummins and Eco-diesel vehicles with 3. 0l v6 engines. Easy installation to replace the old with our dual O-ring system caps to protect your diesel engine from dirt, dust and grime, friendly customer services. Both caps are carefully crafted with CNC billeted aluminum for longer-lasting durability and reliability over your standard plastic cap.
Brandchoolo #ad
ManufacturerCHOOLO #ad
Height0.8 Inches
Length1.9 Inches
Weight0.19 Pounds
Width1.6 Inches
Part NumberGC
Modelstem caps for Benz
Warranty6 month no reason refund

8. DEF

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DEF Compatible with Aluminum Billet Exhaust Fluid Cap Dodge Ram Cummins 2013-2017

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DEF #ad - Airtight, precision fit – keep dirt from entering your fuel system thanks to our dual O-ring system that protectors your engine while you’re off road.

Improved reliability – our def is carefully crafted with cNC 6061-T6 billeted aluminum for longer-lasting durability and reliability over your standard plastic cap. Easy installation – installing your new def cap takes seconds. Easy. Simply remove your old cap from the tether and reattach your new fluid cap in its place. Def safe cap – this fluid cap is crafted with anodized aluminum which won’t be impacted by DEF even after long-term exposure. The “def” has been laser etched on the top of cap, which made the cap more beautiful.
BrandDEF #ad
Part NumberGM-SP-CAP-DEF-BU

9. DOCA

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Magnetic Ram Diesel Billet Aluminum Fuel Cap and DEF Cap Combo for 2013-2018 Dodge Ram Truck 1500 2500 3500 with New Easy Grip Design, Diesel Fuel Cap for Dodge

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DOCA #ad - Diesel and def use laser engraving and use white paint, the font are clear and with hand feel. Easy installation to replace the old with our dual O-ring system caps to protect your diesel engine from dirt, dust and grime, friendly customer services.

Diesel fuel caps used for 2013 2014 2015 2016 2017 2018 dodge ram 1500 2500 3500 diesel trucks with a cap less fuel system, Cummins and Eco-diesel vehicles with 3. 0l v6 engines. 1*magnetic green dodge ram diesel fuel cap and 1* blue DEF cap for Dodge Ram exhaust fluid. Both caps are carefully crafted with CNC billeted aluminum for longer-lasting durability and reliability over your standard plastic cap.
BrandDOCA #ad
ManufacturerDOCA #ad
Height0.75 Inches
Length1.9 Inches
Weight0.22 Pounds
Width1.6 Inches
Part NumberCR-20-CO

10. Henzxi

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Henzxi Dodge Fuel System Cap Magnetic Ram Diesel Billet Aluminum Green Fuel Cap and Non-magnetic Blue DEF Cap Combo Pack for 2013-2018 Dodge Ram Truck 1500 2500 3500

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Henzxi #ad - Safety and durable - both dodge ram fuel caps are crafted with anodized billet aluminum which won't be impacted even after long-term exposure. Fitment - both fuel caps fit 2013 2014 2015 2016 2017 2018 dodge ram 1500 2500 3500 diesel trucks with a cap less fuel system. Guarantee - One year warranty and lifetime friendly service. Protection and guard - henzxi diesel fuel caps are well sealed and can keep out dust, snow and others to protect your fuel system, rain, water, saving you costly engine repairs. Easy to install - Direct replace the old one.
BrandHenzxi #ad
ManufacturerHenzxi #ad
Part NumberHZX-48