Weather Guard 350-5-02 50 gallon L-shape steel transfer tank in gloss black, three-quarter hero view
Detail of the welded steel lift handle and Weather Guard badge on a gloss black transfer tank
Detail of the 2" NPT pump bung with red plug on a gloss black Weather Guard transfer tank
Close-up of the vented lockable brass filler cap on a gloss black Weather Guard transfer tank
Dimensional drawing of the Weather Guard 350-5-02 50 gallon transfer tank with measurement callouts

Weather Guard 50 Gallon L-Shape Steel Transfer Tank, Compact, Black (350-5-02)

$1,181.00 $1,495.99 Save $314.99
FREE SHIPPINGNo sales tax Only 1 leftIn stock now  Estimated delivery
Flash Sale Ends in--:--:--

Free gift included with your order

Details
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
  • Guaranteed FitmentTeam-confirmed fit or money back
  • No Sales TaxZero sales tax on every order
  • 30-Day Money-Back GuaranteeReturn it within 30 days of delivery for a refund
Prestige Truck customer support

Questions or a custom quote?

Mon to Fri, 9am to 5pm EST

+1 (470) 823-2453 Email Us

Features

  • 12-gauge steel panels: Heavy 12-gauge steel forms the front, bottom and back panels, and overlapping edge panels brace the corners. Weather Guard's spec sheet notes the slim 359 column tank does not need that reinforcement.
  • Interior baffles: Welded baffles inside the tank break up fluid slosh on the road, which Weather Guard says adds years to the tank's life.
  • Lockable vented cap: The filler cap vents so pressure cannot build up inside, and it locks to keep your fuel where you left it.
  • 2" NPT pump bung: The pump opening is a standard 2" NPT thread, which Weather Guard says will take most transfer pumps.
  • Rubber isolation bushings: Rubber bushings sit between the tank feet and the hold-down nuts to soak up road vibration before it reaches the tank.
  • Drain port: A drain port low on the tank (1/4" or 3/8", depending on the model) makes routine flushing and maintenance simple.

Description & Fitment

For 50 gallons in the bed, the 350-5-02 uses a L-shape design: 32.25" long, 30" wide and 22" tall. Its gloss black steel shell weighs 126 lb before you fill it, and maintenance runs through a 3/8" drain port.

Fitment & Compatibility

Chevrolet
Years Model Bed Notes
1999-2027 Silverado 1500 —
2001-2027 Silverado 2500 HD —
2001-2027 Silverado 3500 HD —
Ford
Years Model Bed Notes
1997-2027 F-150 —
2022-2027 F-150 Lightning —
1999-2027 F-250 Super Duty —
1999-2027 F-350 Super Duty —
1999-2027 F-450 Super Duty —
GMC
Years Model Bed Notes
1999-2027 Sierra 1500 —
2001-2027 Sierra 2500 HD —
2001-2027 Sierra 3500 HD —
Nissan
Years Model Bed Notes
2004-2024 Titan —
2016-2024 Titan XD —
Ram
Years Model Bed Notes
2011-2027 1500 —
2019-2024 1500 Classic —
2011-2027 2500 —
2011-2027 3500 —
Toyota
Years Model Bed Notes
2000-2027 Tundra —

Check your fit: Weather Guard designed this 50 gallon tank for most compact pickups, and it is on our fitment list for full-size pickups: Chevrolet Silverado 1500, 2500 HD and 3500 HD; GMC Sierra 1500, 2500 HD and 3500 HD; Ford F-150 (Lightning included) and F-250, F-350 and F-450 Super Duty; Ram 1500, 1500 Classic, 2500 and 3500; Toyota Tundra; Nissan Titan and Titan XD. Check the 32.25" x 30" footprint against your bed floor with the drain plug still reachable, and if a tool box will ride beside it, Weather Guard's sheet has you check that fit before you drill.

Not for: hooking into your truck's fuel system as an auxiliary tank, or any fluid other than diesel and hydraulic fluid (Weather Guard). Same tank in Brite White: 350-3-02. Other sizes: 352 (75 gal L-shape), 354 (90 gal L-shape), 358 (100 gal rectangle), 359 (75 gal column), 362 (110 gal L-shape). Not included: a pump, hose or nozzle.

About Weather Guard

WEATHER GUARD.

Weather Guard is the truck and van storage brand of Werner Co., the Illinois company also known for its ladders. Its tool boxes are built in the USA, and the line runs from crossover, Lo-Side and gull-wing boxes to chests, underbody boxes, bed drawers, transfer tanks, ladder racks and van shelving.

Weather Guard's current boxes use the 1Key UltraLock, a red push-button lock you can code so one key opens every box on a truck or across a fleet, and many are finished in ARMOR TUF powder coat.

Buying Weather Guard from Prestige Truck. Weather Guard asks for the original sales receipt with any warranty claim, so keep your Prestige Truck order receipt with your records.

Frequently Asked Questions

Will it fit a Ram 3500?

That truck is on our fitment list for this tank. Measure your bed floor against the 32.25" x 30" footprint before ordering, and plan around any tool box that will share the bed.

Can I run a tool box with it?

Yes, but plan the two together. The tank stands 22" tall on a 32.25" x 30" footprint, so measure what is left for the box; Weather Guard's sheet has you check the tool box fit before you drill.

What can I put in it?

Weather Guard says its transfer tanks are for diesel and hydraulic fluid only, meaning non-flammable fluids, and never for fueling aircraft. The tank and pump must be grounded against static, and the tank has to stay vented. Weather Guard adds that a tank may fall under state or provincial rules, and meeting them is the owner's responsibility.

Can I connect it to my truck's fuel system?

No. Weather Guard says these tanks are not designed as an auxiliary tank hooked into the vehicle's fuel system. Fill equipment from it with a transfer pump instead.

Does it come with a pump?

No. Weather Guard's contents list is the tank, the filler cap and a bolt kit with a 1/4" drain plug. The 2" NPT opening takes most pumps; Weather Guard says to seal the threads with pipe tape, not liquid pipe dope.

Do I have to drill my truck?

Yes. You mark the hole spots, lift the tank out and drill 9/16" holes through the bed floor for the mounting studs, using the floor spacers where a hole lands between low ribs. Check under the bed for fuel lines, brake lines and wiring first, and in an aluminum bed coat the holes with zinc-rich primer and use the plastic washer barrier from the bolt kit.

Installation

Install time Not printed on Weather Guard's install sheet
DifficultyNot printed on Weather Guard's install sheet
TypeIn-bed transfer tank, set on the bed floor and bolted down on mounting studs through drilled 9/16" holes, with rubber bushings under the nuts (Weather Guard installation instructions for 350-X-02 to 362-X-02the 359 adds blind fasteners)
Toolspipe wrench, two 3/4" open or box wrenches, electric drill with 3/16" and 9/16" bits, pipe tape and zinc-rich primer

Here's the short version. Follow Weather Guard's install sheet (below) for the exact positions and hardware.

  1. Set the tank where you want it in the bed, clear of the bed edges, with the drain plug still reachable. Check the fit with any tool box going in beside it.
  2. Mark the hole locations, take the tank out, and drill 9/16" holes. Where a hole lands between the low floor ribs, use the floor spacers under the mounting angle.
  3. From the top, drop the mounting studs through the holes ("TRUCK BED SIDE" down) and lock each one from underneath with a fender washer and Nylock nut.
  4. Lower the tank feet over the studs and secure them with the bushing, fender washer and Nylock nut on top.
  5. Wrap the filler neck threads with pipe tape (not liquid pipe dope) before fitting the filler cap. Ground the tank and pump against static.
  6. Model 359: set the blind fasteners at the marked spots, checking first for wiring, air bags and sensor wires.

Stuck on a step? Ask our install experts

Specifications

BrandWeather Guard
Part Number350-5-02
TypeSteel transfer tank, sits on the bed floor
Approved fluidsDiesel and hydraulic fluid only (Weather Guard)
Fuel systemNot for connection to the vehicle's fuel system as an auxiliary tank
Panels12-gauge steel front, bottom and back with overlapping edge panels (all but the 359 column tank, per Weather Guard)
BafflesWelded interior baffles
FillerReinforced filler neck, vented lockable filler cap
Pump opening2" NPT
MountingRubber isolation bushings; bolt kit included
FinishGloss black ARMOR TUF powder coat
Quality checksTwo inspections on every tank before it ships (Weather Guard)
Country of originUSA
Series350 Series L-shape transfer tank
Capacity50 gal
MaterialSteel
Exterior dimensions32.25" L x 30" W x 22" H
Weight126 lb (empty)
Drain port3/8"
WarrantyWeather Guard Limited Lifetime
UPC783965060240

Warranty, shipping & returns

  • Warranty

    Weather Guard backs this tank with its Limited Lifetime Warranty, issued by Werner Co.: the tank is warranted against defects in material and workmanship for its expected lifetime, counted from the day you buy it.
    • Only the original purchaser is covered, and coverage ends if the tank passes to a new owner.
    • Every claim needs a copy of the original sales receipt, so keep your Prestige Truck order receipt with your records.
    • Werner Co. picks the remedy: it repairs the faulty part or replaces the whole tank at no charge for parts or labor, or it may refund what you paid or issue a credit toward a new Weather Guard product.
    • Not covered: normal wear and tear, cosmetic rust, scratches, accident damage, repairs Werner Co. did not authorize, misuse, overloading, or a tank that was not mounted or used as Weather Guard's written instructions describe. Damage to the fuel or fluid in the tank or to the vehicle is excluded too.
    • Where the law allows, Werner Co. accepts no liability for incidental, special, indirect or consequential damages, economic loss included. This is the only express warranty on Weather Guard products, and no dealer can change it.
    • Report a problem promptly once you find it. To start a claim, contact us with your order number and photos of the issue, and we will take it up with Weather Guard for you.

  • Free shipping

    Ships free to the lower 48 states, with no minimum order.
    • Order by 5 PM ET on a business day and it starts processing the same day.
    • Most orders arrive within 1-5 business days.
    • We email your tracking number as soon as it ships.

  • Inspect on delivery

    Before the tank is bolted in, look over the welds and powder coat for shipping damage and check that the filler cap, drain plug and bolt kit are in the carton. Check it as soon as it arrives.
    • Look for crushed ends, punctures or tears in the carton.
    • If something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).
    • Open the box and check the parts against the parts list before you install.
    • Email support@prestigetruck.com right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.

  • 30-day returns

    Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.
    • Email support@prestigetruck.com with your order number. We reply within 1-2 business days with instructions.
    • Damaged, defective or wrong item: we send a prepaid label or arrange a pickup.
    • Changed your mind: you pay return shipping. No restocking fee.
    • Refunds go back to your original payment method within 7 business days of approval. See our returns policy.

What our customers say

5 · 1 review

Miks69 Verified
09/28/2025

This L-shaped tank fit perfect

I bought this tank a month and a half ago and installed it myself it fits perfect in the cradles the toolbox just right. It did raise the toolbox 2 inches from the bed rails, but I those two pieces of 2 in.² Square tubing and it fit perfect with 4J hooks.

Questions about fit or install?Chat with our team, Mon to Fri, 9am to 5pm EST.Ask a question