Product Description
FASS STK1005 DIESEL FUEL BULKHEAD AND VITON SUCTION TUBE KIT
The FASS STK1005 Bulkhead and Viton Suction Tube Kit mounts directly to the factory fuel tank module and pulls fuel from the basket to eliminate 1/4-tank issues while supporting higher-flow Titanium Signature Series systems. The Viton tube resists collapse and cracking, and the bulkhead design simplifies plumbing for clean, reliable supply and return routing.
Fitment & System Notes
- Universal applications: Ford Powerstroke, GM Duramax, and Dodge/Ram Cummins tanks (module/basket pickup).
- Function: Pulls fuel from the fuel basket to prevent fuel starvation at low tank levels; can be used as a pair for high-flow suction and high-flow FASS return.
- Line size compatibility: Works with 1/2" or 5/8" suction line (verify your system plumbing).
- Recommended with: FASS Titanium Signature Series systems and high-volume builds.
Installation & Manuals
Install guides are available from FASS here: FASS Installation Manuals. Refer to the Pump Accessories section for suction tube/bulkhead instructions and routing tips.
Cross-Reference & Related FASS Items (CPP Diesel)
- FASS STK1002 — 5/8" Suction Tube Kit w/ Bulkhead Fitting.
- FASS STK1003 — Convoluted Suction Tube Kit w/ Bulkhead.
- FASS STK1003B — Convoluted Suction Tube upgrade only (for existing bulkhead).
- FASS STK5500 — Fuel Sump Kit w/ Bulkhead & Suction Tube.
- FASS STK5500B — Fuel Sump Kit w/ Suction Tube Upgrade.
FAQ
Will STK1005 fix the common 1/4-tank issue?Yes. By drawing from the fuel basket, the kit prevents aeration and starvation that typically occurs when fuel drops near 1/4 tank.
Can I run one kit for suction and another for the return?
Yes. Many setups use a pair of STK1005 kits to support high-flow suction and a dedicated high-flow return to the basket.
What line sizes does it support?
It is compatible with 1/2" or 5/8" suction line. Match to your FASS system’s plumbing and fittings.
Which FASS systems benefit the most?
High-volume Titanium Signature Series systems and builds that experience low-tank fuel starvation.
Specifications for Fass STK1005
| Brand | FASS Fuel Systems |
| Part Number | STK1005 |
| Compatibility | Universal — Ford Powerstroke, GM Duramax, Dodge/Ram Cummins (fuel tank module/basket) |
| Line Size | 1/2" or 5/8" suction line |
| UPC | 850044106912 |
| GTIN | 0850044106912 |
| Shipping | Standard Ground — typically ships same/next business day |
| Prop 65 | Yes — Cancer and Reproductive Harm |
