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Kloc Fabrication

1988-1998 GMT400 Low Profile Surge Tank (Pressurized)

1988-1998 GMT400 Low Profile Surge Tank (Pressurized)

Regular price $250.00 USD
Regular price Sale price $250.00 USD
Sale sold out

Reservoirs will be built to order - as of 3/29/25, 5-8 business day lead time is expected.

Upper Fitting Size
Lower Fitting Size

Based off of our Flagship GMT400 Aluminum Coolant Reservoir (Unpressurized), this low-profile surge tank has been slimmed down and can be used in alternative applications such as with Slosh Tubz fenders or other low-clearance options on lowered trucks. Surge Tanks are designed to be used with coolant systems that DO NOT have the pressure cap on the radiator. 

Please e-mail or call us with any custom fitting location/size requests. 

Finish Notes

  • Natural reservoirs are aluminum in an unfinished state. They may have minor scratches and tooling marks. Weld etch lines will be visible.
  • Polished reservoirs will be polished on all outward facing panels. This is a mirror polish. Fill caps are also polished. Firewall side (back) is unpolished.
  • Seconds are fully functional reservoirs that:
  1. May have inconsistencies in appearance of welds (Perfect for those who want to grind/sand off the welds).
  2. Have heavier scratches or tooling marks than Natural reservoirs
  3. Have other minor visual imperfections

Materials

  • .100" 5052 Aluminum
  • Includes (2) M8-1.25 stainless steel bolts and washers for mounting

Shipping & Returns

  • Free Shipping in the Continental U.S.
  • Expedited Shipping available upon request.
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Low Profile

Looking for an alternative to that old cracked and faded plastic reservoir, but limited on space due to inner fender configuration? Our Low Profile Aluminum Reservoirs are direct bolt on in place of the factory reservoir and will fit where our standard reservoirs will not.

Surge Tanks are designed to be used where radiator is not equipped with pressure cap (often found on NBS style cooling systems)

Features Include:

  • Stainless Steel mounting hardware
  • Knurled Aluminum Pressure Cap (16PSI)
  • Custom front upper & lower barb fittings specific to your application
  • Direct bolt on construction with mounting tab to lock into firewall
  • Pressure Tested
  • 100% USA MADE

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  • Made In U.S.A.

    Tired of living in a disposable world with everything imported from overseas?

    So Are We.

    100% USA Made.

  • Free Shipping

    Free Shipping on all orders within the continental U.S.

    Expedited shipping available per request.