Your semi-truck fuel tank does a lot more than hold diesel – it helps to define the side profile of your rig.
Having a standard aluminum fuel tank can make a custom chromed-out truck seem slightly unfinished.
However, adding the right combination of strap covers, wraps, filler panels, fairings, and accent lights can transform your standard tank into a one-of-a-kind custom tank.
Here’s how you can start building a head-turning, show-truck aesthetic for your diesel fuel tank – whether you drive a Peterbilt, Kenworth, Freightliner, Western Star, International, or Mack truck.
How to Choose the Right Custom Tank Upgrades
Fuel tank wraps add shine, strap covers add detail, fairings clean up the side profile, lighting adds personality, and scuff panels protect the finish.
· Appearance: Use stainless wraps and custom straps for a polished, chrome-like finish.
· Profile: Add fairings or filler panels to hide gaps and smooth the truck's sides.
· Protection: Apply scuff panels, bibs, and trim to prevent scratches and daily wear.
· Visibility: Install LED accessories to make the tank stand out at night.
The Best Fuel Tank Cosmetic Upgrades
There are plenty of ways to add style and personality to your fuel tank: covers, wraps, skins, straps, lighting accents, end caps, filler neck trim, or custom logo step plates.
Fuel Tank Wrap Designs
Fuel tank wraps give the side of a semi truck a cleaner, brighter, and more custom look.
They cover the visible tank surface with polished stainless steel, which helps older or plain tanks blend better with chrome steps, stainless straps, fairings, and other exterior trim.
A fuel tank wrap can also make the whole side profile look smoother and more finished without replacing the entire tank.
Stainless Steel Fuel Tank Straps
Stainless steel fuel tank straps give the side of a semi truck a cleaner, sharper look. They replace plain or worn factory straps with polished hardware that stands out against the tank.
Wide, single/double/triple slotted, or straight-cut straps can add a custom show-truck feel while still helping secure the tank in place.
Style options:
- Scalloped stainless fuel tank straps
- Wide 6-inch, 7-inch or 8-inch tank straps
- Slotted stainless straps
- Straight-cut stainless straps
- Dummy/exterior decorative straps
- Black powder-coated straps for a darker appearance
Fuel Tank Strap Covers
Fuel tank strap covers dress up the existing tank straps without requiring a full strap replacement.
They hide dull, scratched, or aging hardware and add a smoother chrome or stainless finish to the tank area.
Tank saddle covers can come in various cuts: curved, full radius partial radius, and mitered.
Lighted strap covers can also add amber accent lighting for a more eye-catching nighttime look.
Style options:
- Chrome plastic strap covers
- Stainless steel strap covers
- Full-radius strap covers
- Blank strap covers
- Lighted strap covers
Stainless steel fuel tank wraps can be added to help give a uniform chrome-polished finish on the tank.
Filler Panels
Fuel tank filler panels help clean up the open space around the fuel tank, frame, and side exterior. They cover awkward gaps and exposed areas that can make the truck look unfinished.
Filler panel designs can include smooth, polished finishes or pre-formed light cutouts to insert watermelon lights or unique marker lighting.
Style options:
- Stainless fuel tank filler panels
- Custom side filler panels
- Frame gap panels
- Polished tank-area panels
A fuel filler insert trim piece or stainless filler panel gives the side profile a smoother, more custom appearance, especially when paired with tank straps, fairings, steps, and accent lighting.
Fuel Tank End Caps
Fuel tank end caps finish off the visible ends of the tank and give the setup a more complete look. Instead of leaving the tank ends plain, scratched, or weathered, polished or painted end caps add a clean custom detail.
Style options:
- Aluminum fuel tank end caps
- Polished end caps
- Painted end caps
- Custom-color end caps
End cap covers come in various style/color options which helps to tie the tank’s design to the rest of the truck’s exterior styling, whether the build leans classic chrome, modern stainless, or color-matched show-truck style.
Fuel Tank Lighting & Accent Light Upgrades
Covers with amber lighting strips, carefully positioned exterior marker lights, under-tank glow lights, and fairing lights are all great options for giving your tank some nighttime appeal.
Lighted fuel tank accessories add instant personality to a semi truck’s side exterior. They turn the fuel tank area from plain hardware into a clean, custom focal point.
Amber LEDs, lighted strap covers, and hidden accent strips create a sharp nighttime glow that ties the tank, steps, frame, and sleeper together.
Style options:
- Lighted fuel tank strap covers
- Amber LED fuel tank lights
- M5 marker lights
- Beehive lights near the tank area
- Under-tank accent lighting
- Backlit filler panels
These upgrades also make the truck look more finished. Instead of leaving the fuel tank area dark and overlooked, lighting adds depth, shine, and curb appeal. It gives the truck that polished show-truck feel without changing the entire build.
Semi-truck LED accent kits are commonly used for under-cab, toolbox, grille, breather, and heavy-duty accent lighting applications.
Some of the best spots to upgrade on or around the fuel tank include:
· Under the tank
· Behind the support straps
· Under the steps
· Side cab panel underglow lights in Beehive and Bullseye designs
Fuel Tank Fairings, Panels & Side Profile Upgrades
Whether you’re adding louvered side panels, frame gap covers, and side profile lighting upgrades, it’s one of the most powerful custom upgrades you can make for your rig.
Stainless fuel tank fairings clean up the lower side profile of the truck. They help cover open gaps around the tank, brackets, and frame while adding a polished custom finish.
Style options:
- Blank stainless fuel tank fairings
- Flat-top fuel tank fairings
- Fairings with brackets
- Light-ready fairings
- Smooth custom fairings
A smooth or blank stainless fairing can make the fuel tank area look more complete, especially when paired with stainless straps, steps, and side lighting.
The side profile upgrades completely accentuate the look and feel of your fuel tank. Smooth stainless steel fuel tank fairings with a curved or flat-top profile.
Custom light-hole cutouts with specific diameters and shapes, be it P1 lights, Super Nova lights, or Millennium light designs.
Tank covers are another great option. These models come with integrated steps for the passenger side of the truck are another great way to achieve a more finished look. The cover smooths out the side profile of the truck.
Fuel Tank Step & Access Upgrades
Fuel tank steps are a functional, ergonomic tank upgrade that can also complement the style, adding custom step inserts or colored tread plates.
- Diamond-plate steps
- Punched-tread steps
- Step mats
- Stainless step plates
- Tank step brackets
Fuel Cap, Filler Neck & Security Upgrades
Adding a non-locking diesel fuel cap is ideal for direct replacement when security is less of a concern, but proper sealing, venting, pressure relief, and tank fitment still matter.
- Locking fuel caps
- Polished cap covers
- Billet-style caps, cap chains
- New O-rings/gaskets
- Filler neck trim
While these upgrades aren’t cosmetics, they can be customized. A fuel tank cap could include an engraved logo of your brand, and something as mundane as rubber filler neck trim could have a custom design/logo imprinted upon it.
These fine-tuned tank-related upgrades often require some help from a fab shop. For drivers who don’t want to bother with it, adding one-and-done aftermarket tank accessories can do the trick.
Fuel tank scuff panels offer protection for high-contact areas of the tank, deterring scratches, boot marks, and grime. They also give you tank another piece of polished chrome to finish the side profile.
Complete Semi Truck Fuel Tank Customization Ideas
Custom fuel tank upgrades really come together when they’re tied to other areas of the rig: the air cleaner panel covers, the custom body paint, and exterior cab trim.
Here are a few simple ideas:
- Polished tank + stainless straps + amber accent lighting
- Tank wrap + black brackets + hidden glow lighting
- Louvered fairing + beehive marker lights
- Painted tank ends + polished center tank
- Mirror stainless side panel + backlit logo
- Chrome fuel caps + matching battery box covers
- Stainless tank setup matched with toolboxes and quarter fenders
- Old-school chicken-lights with hidden brackets to lighly illuminate the fuel tank
- Clean minimalist chrome-polished, smooth-panel tank setup
Shop for Fuel Tank Accessories at Big Rig Chrome Shop
Upgrade your fuel tank with functional system-replacements, mounting hardware, and custom accessories. Shop for fuel tank upgrades at Big Rig Chrome Shop by make/models like Western Star, Kenworth, Freightliner, Peterbilt, and International trucks.
