Built to order — not a shelf part
Current build & coat time: 4–14 days
Every Felder Kustom Fabrication part is fabricated after your order is placed, so lead times run longer than off-the-shelf parts. Lead time varies with our current build queue — contact us before ordering if you need an exact date.
The FKF 2001-2007 Duramax Low Profile Coolant Tank is a TIG welded 3/16" aluminum coolant tank designed specifically to clear compound turbos, S400 kits and open style air intakes on LB7, LLY and LBZ trucks. It uses the stock coolant ports and includes a revised, serviceable low level coolant sensor that is completely plug and play.
Features
- 3/16" aluminum, fully TIG welded
- CAD designed and CNC cut and bent for perfect fitment every time
- Uses stock coolant ports
- Revised serviceable low level coolant sensor, completely plug and play
- Low profile design for compound turbo, S400 and open intake clearance
Fitment
2001-2007 GM 2500HD / 3500HD trucks with the 6.6L Duramax (LB7, LLY, LBZ).
Powder coat options
If a custom powder coat colour is desired for the tank or badge, select “Custom Colour” and state the colour in the cart notes.
Colour link — https://www.prismaticpowders.com/canada
Frequently asked questions
What is the lead time on this coolant tank?
Please allow 4-14 days for build and coat time. This tank is built to order, not pulled from a shelf. Contact us before ordering if you need an exact date.
Will it clear my S400 or compound turbo setup?
Yes. The low profile design exists specifically to clear compound turbos, S400 kits and open style air intakes.
Do I lose my low coolant light?
No. A revised, serviceable low level coolant sensor is included and it is completely plug and play.
Do I need to modify my coolant lines?
No. The tank uses the stock coolant ports.