Kloc Fabrication
1988-1998 GMT400 (C/K1500) Pressurized Surge Tank
1988-1998 GMT400 (C/K1500) Pressurized Surge Tank
Tanks are IN STOCK. Please allow 2-4 days for fitting customization & shipment.
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Based off of our Flagship GMT400 Coolant Reservoir (Unpressurized), this pressurized Surge Tank is designed to be used with coolant systems that DO NOT have the pressure cap on the radiator.
Notes on Aluminum Finish
Notes on Aluminum Finish
- Natural reservoirs are aluminum in an unfinished state. They may have minor scratches and tooling marks. Weld etch lines will be visible.
Due to regular changes in material availability since the tariffs were implemented, slight color variations in 5052 aluminum are expected. Current Coolant Reservoirs are more gold in color (see second photo)
Materials
Materials
- .125" 5052 Aluminum
- Includes (2) M8-1.25 stainless steel bolts and washers for mounting
- Billet Machined 1.1 Bar Pressure Cap
Shipping
Shipping
- Free Shipping in the Continental U.S.

Clean, Classy, 100% USA MADE.
Our surge tanks are perfect for LS swaps or other applications where a pressurized reservoir is needed. Direct bolt on in place of the factory plastic reservoir.
Features Include:
- Direct bolt on construction with mounting tab to lock into firewall - No modification required
- Billet Machined Aluminum fill cap (1.1 Bar)
- Billet Machined barb or AN fittings (built to your specifications)
- Stainless Steel mounting hardware
- Options such as sight glass/tube sight
- Pressure Tested
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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.
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Free Shipping
Free Shipping on all orders within the continental U.S.
Expedited shipping available per request.