Recipe - Ford 6.7L Power Stroke Diesel (Scorpion)
Specific Fix build
Reliability tier: aggregated - verify before ordering, see /disclosure/
Full repair path after a confirmed CP4.2 high-pressure pump contamination event (CP4.2 high-pressure fuel pump contamination cascade): metal debris in the fuel filter means the pump, injectors, rails, and lines are all contaminated, not just the pump. Replacing only the pump on a confirmed event guarantees a repeat failure within a short mileage window, per both cited vendor guides (an aftermarket parts maker's 6.7L Power Stroke guide, a parts retailer's 6.7L Power Stroke guide) and Ford's own catalog note ('If Fuel System Is Contaminated, Refer To 9B246 Special Service Kit') on the OEM pump listing itself.
Parts
- 6.7L Power Stroke Fuel Contamination Kit (Alliant Power, gen3/2023-26) - gen3 (2023-26) Alliant Power kit bundles new/reman pump + full injector set + rails + high-pressure lines + filters + seals in one job - the correct scope for a confirmed contamination event. For gen1/gen2 (2011-2019) trucks, no equivalent bundled kit was found in our price check (2026-09-15) - see 6.7L Power Stroke CP4.2 High-Pressure Fuel Injection Pump and the injector kits 6.7L Power Stroke Fuel Injection Kit, Chassis Cab/gen1-shared (Narrow Frame),... / 6.7L Power Stroke Fuel Injection Kit, Pickup (Wide Frame), 2015-2019,... for the individual OEM components instead (data-gap on a bundled kit, not on the repair path itself). (qty 1)
- 6.7L Power Stroke CP4.2 High-Pressure Fuel Injection Pump - gen1/gen2 individual OEM pump PN if a bundled kit is not used (qty 1)
- 6.7L Power Stroke Fuel Injection Kit, Pickup (Wide Frame), 2015-2019, Cylinders 1/2/7/8 - full injector set (both cylinder banks) - a contamination event 'usually takes out multiple injectors at once' per an aftermarket parts maker's 6.7L Power Stroke guide; do not mix new and contaminated injectors. Ford sells this as two per-bank kits, not 8 individual injectors - pair with 6.7L Power Stroke Fuel Injection Kit, Pickup (Wide Frame), 2015-2019,... (or 6.7L Power Stroke Fuel Injection Kit, Chassis Cab/gen1-shared (Narrow Frame),.../-b (Chassis Cab, Narrow Frame - also covers gen1 both body styles), depending on body style and model year). (qty 1)
- 6.7L Power Stroke Fuel Injection Kit, Pickup (Wide Frame), 2015-2019, Cylinders 3/4/5/6 - companion cylinder-bank kit (3/4/5/6) - always replace both banks together on a confirmed contamination event (qty 1)
Install order
- confirm contamination before ordering anything: cut open the fuel filter and inspect for metallic debris (CP4.2 high-pressure fuel pump contamination cascade diagnosis) - this determines whether a contamination-kit scope or a simple pump swap is correct
- if contaminated, replace the full high-pressure side in one job: pump, all 8 injectors, rails, high-pressure lines, and filters
- flush the low-pressure side (tank, lines, lift pump inlet) before startup - residual debris upstream will re-contaminate the new pump
- consider a preventive kit install (Preventive measures against the CP4.2 contamination cascade...) at the same time, while the fuel system is already open
Expected outcome
Clean rail pressure build, no P0087/P0088/P0093 codes, no repeat metal-in-filter findings on the next filter change.
Do not
- do not replace only the pump after a confirmed contamination event - metal debris already circulated through the injectors and rails will destroy the new pump within a short mileage window
- do not reuse high-pressure lines or filters from a contaminated system - they carry embedded metallic debris
- do not skip flushing the low-pressure side - it is the most commonly missed step in an otherwise-correct repair
Parts budget
About $2,100-$7,600 in parts. It depends on what the diagnosis finds; each option below is what you buy together. Prices marked "at Dave's" are Dave's Auto Center's, the same as in his store; the others are approximate prices from OEM and maker catalogs, rounded (a manufacturer's list price can run higher). Parts only, no labor.
DIY or shop: Shop: high-pressure common-rail diesel fuel system work at this pressure class is not a casual DIY job - both cited vendor guides frame this as dealer/specialty-shop work.