Sinister Diesel 03-07 Ford 6.0L Oil Filter & Coolant Filtration System
Owners of 2003-2007 Ford Super Duty trucks and E-series vans with the 6.0L Powerstroke know the oil cooler and EGR cooler are the weak spots, and dirty coolant is a big part of why. This Sinister Diesel SD-EOF-CF-6.0 kit adds a dedicated coolant filter and a 2 micron bypass oil filter to the engine, so casting sand, rust, sludge and metal get pulled out of both fluids before they plug coolers or wear bearings. It is a new, complete kit with billet blocks, a mounting bracket, lines, valves and the first filters.
The kit has two billet aluminum blocks on one bracket. The larger oil block holds an Amsoil oil filter and is fed by stainless braided lines from a new Sinister oil filter cap that replaces the factory cap on the engine. Oil flows from the cap, through the fine filter, and back into the engine through a new oil fill cap with a fitting insert. It works alongside your factory filter rather than replacing it, which is why it can filter so much finer than a full flow filter.
The smaller block holds the coolant filter. One line tees into the heater core hose and the other tees into the overflow line going to the degas bottle, so a small stream of coolant runs through the filter whenever the engine is running. Ball valves on both coolant lines let you shut the circuit off to change the filter without draining the system. According to Sinister, catching casting sand and deposits this way protects the oil cooler, EGR cooler and water pump, and the system can be upgraded to a Cat coolant filter.
This kit filters the fluids, it does not fix a cooler that is already plugged. Compare engine oil temperature and coolant temperature on a scan tool at operating temperature; a large gap means the oil cooler needs replacing first, and the Sinister 6.0L oil cooler kit pairs with this system so the new cooler stays clean. Flush the cooling system before adding the filter. If you also run a hot side charge pipe from another brand, note that the kit is listed as having clearance issues with the Banks hot side pipe.
Listed for the 2003-2007 Ford 6.0L Powerstroke: F-250 and F-350 Super Duty from 2003, F-450 and F-550 Super Duty from 2004, and 2004-2007 E-350 and E-450 Super Duty vans in the catalog fitment data. The listing notes it will not work with the Extended Life filter, and Sinister also sells a gray version under a different part number. This page is for SD-EOF-CF-6.0. If you are not sure about your truck, send us your year and VIN. More 6.0L fluid and filter parts are on our fluids page.
| Brand | Sinister Diesel |
| Part number | SD-EOF-CF-6.0 |
| Fits | Sinister Diesel 03-07 Ford 6.0L Oil Filter & Coolant Filtration System |
| Type | Oil Filter Other |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. The Sinister cap replaces the factory oil filter cap, and the external 2 micron filter works as an extra bypass filter. When you change the factory filter, remove the braided line from the cap first.
It is listed for 2003-2007 Ford 6.0L Powerstroke F-250 and F-350 Super Duty, 2004-2007 F-450 and F-550, and 2004-2007 E-350 and E-450 vans. It will not work with the Extended Life filter. Send your VIN if you are unsure.
Sinister recommends changing the first filter at 500 miles, the second and third after 3,000 miles each, and then once a year after that.
No. It removes contaminants going forward. If oil temperature is already running far above coolant temperature, replace the oil cooler and flush the system first, then add the filter to protect the new parts.
The bracket bolts to the passenger side alternator mounting points. The only drilling is a 1/4 inch hole in the radiator shroud to clip the coolant line in place.
The product data lists clearance issues with the Banks hot side charge pipe, so plan for that if your truck has one.
