Skip to product information
Ford Super Duty Fuse Box Water Deflector (2020+)

Ford Super Duty Fuse Box Water Deflector (2020+)

$35.00
✓ Free Shipping ✓ Made in Louisiana

22 reviews

NOW COMPATIBLE WITH 2020 AND NEWER SUPER DUTY TRUCKS

A Known Problem. Now There's an Affordable Fix.

Water infiltration near the battery junction box is a documented issue on Super Duty's. The factory design routes water directly over the battery junction box, and eventually that catches up with your electrical system.

Our water deflector snaps into the existing drainage plate and actively redirects water away from the junction box, routing it safely down the side of the engine compartment instead of onto your electrical components.

No tools. No hardware No drilling. No permanent modifications. Installs and removes in seconds.

Built to last: Printed in-house from black ASA. UV-stable, high-strength, and built to handle engine bay heat, moisture, and under-hood conditions long term.

Fits: 2020+ Ford F-250, F-350, and F-450 Super Duty.

Disclosures

Water Deflector - Liability Disclaimer

Important:This deflector is designed to reduce water exposure near the battery junction box under normal driving conditions. It is not a waterproof seal and is not a substitute for diagnosing or repairing existing water intrusion issues. Function First Design is not responsible for electrical damage resulting from water infiltration, pre-existing conditions, improper installation, or use outside of intended applications. Inspect your engine bay regularly and address any existing moisture concerns before installation.

You may also like

  • 5 stars: 22 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
B
Brian

Just installed this on my 26 Super Duty. Takes longer to unlock the doors, pull the hood lever and go open the hood than to install it! Fits great, quick service and looks like it belongs under the hood.

T
Todd S.

Great design for a fix on a common problem with Ford trucks! Fast shipping too!

K
Kevin

Fantastic product. Fit like a glove on my 2024 F350 Platinum 7.3.

L
Lawrence G.

Awesome design and very high quality material. Fit and finish is fantastic. Highly recommend!

T
Thomas D.

Quick shipping. Easy to install. Fixes a bad design from the factory

J
Jacob H.

Perfect fit! Easy to install! Nice affordable option!

D
Dan P.

Product is outstanding construction and fit perfect. Install only took a few minutes.

M
MIKE K.

Fit perfect and heavy duty.

A
Anthony B.

Fits Perfect Thank You

A
Anonymous

Excellent fit, easy install.

A
Anonymous

The part was a perfect fit. From placing the order to the quality of the packaging, everything was handled professionally. The part arrived well protected and in excellent condition. The entire experience was smooth, and the quality exceeded my expectations. I would definitely recommend this seller and would order from them again.

T
Terrance

Superior product and packaging. QR code included in package shows installation = 10 seconds. 🇺🇸

D
Donald P.

Great print quality, well packaged, good order and shipping information, and it does the job. Thanks for a great product.

G
Guy S.

Fits great and diverts the water! What more can you ask of it than that?
Solid purchase at a great price

D
Docjeff

Easy to install, good packaging. Fast shipping. Looks to be good quality

M
Mr. F.

The part was made well, I've been in the deep draw and metal stamping business for 45 years. I look at a part like this think about the tooling needed to make this out of metal and it would be ridiculously expensive. The 3D printed part was a perfect solution that supports the need, the value and the solution that completely undermines the OEM price strategy with superior part. Good job! That's what we need in this day and age...

S
Steve S.

Perfect fit and speedy delivery all at a very reasonable price. Thank you so much

A
Anonymous

Great product! Works just like they said it would.

S
Scott K.

Easy installation, no tools required, snaps right into place. I also applied a bead of silicone to channel the water to the diverter.

A
Andrew S.

Great product. Perfect Fit

B
BARRY W.

It hasn't rained here since I installed the water deflector so I have no idea if it works. Actually, I may never know if it works. Price is very reasonable. Shipping was fast. Installation was easy and fast. It snapped right in and fits great. It is a great alternative to the ridiculously priced part from Ford.

J
John

Great design and build. Deflector fits great, is very secure and works great when tested. !!!