Product Description
S&S Diesel Gen2.1 CP4 Disaster Prevention Kit — Billet Filter Head Upgrade w/ Filter (CP4-6.7F-BP-G2.1-FHU)
Upgrade your existing S&S Gen2 CP4 Disaster Prevention Kit to Gen2.1 performance. The Gen2.1 billet return filter head accepts a standard spin-on filter for easier service and improved debris isolation. Uses the same quick-connects and bracket points as Gen2 for a fast retrofit.
- Direct retrofit for trucks already running the S&S Gen2 kit (replaces the Gen2 return filter head)
- Billet aluminum filter head with OE-style quick connects
- Includes a spin-on Donaldson filter (9-micron @ 99% efficiency)
- Designed to keep CP4 debris from reaching the tank and supply side during a failure
Fitment
- 2011–2024 Ford F-250 / F-350 / F-450 / F-550, 6.7L Power Stroke
- Works as an upgrade for trucks already equipped with the S&S Gen2 CP4 Disaster Prevention Kit.
What’s Included
- Gen2.1 billet return filter head
- Spin-on fuel filter (Donaldson P550943)
- Isolation bushings and fittings
- Install hardware for Gen2 → Gen2.1 retrofit
Recommended Parts (All Internal Links)
- Don’t have the full kit yet? Add the S&S GEN2.1 CP4 DISASTER PREVENTION KIT (CP4-6.7F-BP-G2.1)
- Need the complete return filter assembly? S&S GEN2.1 RETURN FILTER ASSEMBLY (CP4-6.7F-BP-G2.1-RFA)
- Stock up on filters: Donaldson Filters (P550943)
- Explore related fuel system parts: CP3/CP4 Pumps & Components (6.7L Power Stroke)
- Considering a pump upgrade? S&S 6.7F-DCR-1 CP4→DCR Conversion Kit
Helpful Notes
- This is the filter head upgrade for owners of the Gen2 kit. If you need a full solution, choose the Gen2.1 kit above.
- Standard spin-on filter makes service quick; keep a spare Donaldson P550943 on hand.
FAQ
What exactly does this upgrade do?It replaces the Gen2 return filter head with the Gen2.1 billet head that uses a spin-on filter, improving debris capture and serviceability during/after a CP4 failure.
Do I need the full Gen2.1 kit for this to work?
No—this part is designed as a retrofit upgrade for trucks that already have the S&S Gen2 disaster prevention kit installed.
Which filter does it use?
Donaldson P550943 (9-micron @ 99% efficiency). We recommend keeping a spare on board.
Will this prevent the CP4 pump from failing?
No product can stop a CP4 from failing. This upgrade helps prevent CP4 debris from contaminating the rest of the fuel system when a failure occurs.
Is installation straightforward?
Yes. It reuses Gen2 quick-connects and mounting hardware for a clean, direct swap to Gen2.1.
