Ford Power Stroke Maintenance Schedule & Parts Checklist (7.3 / 6.0 / 6.4 / 6.7)

Diesel maintenance isn’t complicated, but on a Power Stroke it’s unforgiving — the injection system on every one of these engines lives or dies on clean oil and clean fuel, and the 6.0L in particular punishes a neglected cooling system. The good news: the whole schedule comes down to a short list of wear items, the right part numbers, and a consistent interval. This is that checklist, broken out by engine — the 7.3L (1994.5–2003), 6.0L (2003–2007), 6.4L (2008–2010), and 6.7L (2011+) — with honest normal-service versus severe/tow intervals.

Not sure which engine you have? Start with the Super Duty generations & fitment guide. For the deep dive on each engine’s weak points, see the 6.0 problems guide and the 7.3 weak-points guide. Everything below shops back to a real parts category — new on Amazon Automotive, used and OEM on eBay Motors.

The One Rule: Clean Oil, Clean Fuel, Correct Coolant

Before the intervals, the idea that ties every Power Stroke together: the injection system is the engine. The 7.3 and 6.0 fire their injectors with high-pressure engine oil (HEUI), so tired, dirty oil literally degrades how the engine runs. The 6.4 and 6.7 use a high-pressure common-rail pump that is exquisitely sensitive to fuel cleanliness. And the 6.0’s oil cooler and EGR cooler foul on dirty coolant. Keep those three fluids clean and on-spec, and these trucks run past 250,000–400,000 miles. Neglect them and you’ll meet the expensive failures early.

Oil & Oil Filter

Always fill to the dipstick, not the label capacity — overfilling a diesel can push oil into the intake through the CCV. The 6.7’s low-SAPS oil requirement is not optional: it protects the DPF and after-treatment. If you tow, idle for work, or run short winter trips, ignore the long factory numbers and treat your truck as severe service. Shop oil filters in the filters & maintenance category; for OEM Motorcraft filters on discontinued applications, eBay Motors is the better marketplace (button in the sidebar).

Fuel Filter(s) — The Cheapest Insurance You Can Buy

Fuel filtration protects the single most expensive part of the engine, so this is the one interval never to stretch. Ford says roughly every 15,000 miles; experienced owners run ~10,000, sooner with a lift pump or dodgy fuel.

• 7.3L: a single filter lives in the fuel bowl on top of the engine. Change it with a fresh o-ring and check the blue-spring fuel-pressure regulator while you’re in there.
• 6.0L: a single Motorcraft FD-4616 element under the top-mounted cap. The plastic factory cap cracks — many owners upgrade to an aluminum cap — and it takes a 24/36mm fuel-filter cap socket to remove without rounding it off.
• 6.4L: two filters — a frame-mounted primary and an engine-mounted secondary — changed together. Same cap-socket tool applies.
• 6.7L: two filters as well (frame-mounted primary + engine-mounted secondary). Use DFD4615/FD-4615 for 2011–2016 trucks and DFD4625/FD-4625 for 2017+. Change both at once, and drain the water separator as its light or your schedule dictates.

For the full part-number cross-reference and fitment by year, see the Power Stroke fuel filter cross-reference and the fuel filter reference guide. Shop the fuel system category for filters, caps, and the cap socket.

Air Filter

The engine air filter is a simple restriction check — replace it when it’s dirty or on a ~15,000–30,000 mile cadence, sooner if you run gravel, farm, or dusty job-site miles. A clogged filter costs you fuel economy and, on a heavily-loaded truck, boost. For the 6.7L, the Doc’s Diesel DPA6109 (replaces FA1902) is a direct-fit element for 2011–2016 F-250 through F-550. Shop the filters & maintenance category for other applications.

Coolant & the 6.0 Coolant Filter

All Power Strokes want fresh, correct-spec coolant changed on interval (broadly every ~100,000 miles or ~5 years, sooner if the SCA drops out of spec) — most run a Ford Gold-type coolant, while some later 6.7s call for a specific specialty coolant. Never mix types.

The 6.0L deserves special attention: its oil cooler and EGR cooler foul on casting sand and scale in the coolant, and that’s the first domino in the classic 6.0 overheating chain. A coolant filter kit captures those particles and, combined with keeping the coolant clean and the SCA in spec, directly extends oil-cooler life. If you own a 6.0, read the EGR & cooling guide — a coolant filter is one of the highest-value preventive parts on the truck. OEM coolant-filter kits and housings live on eBay Motors (sidebar).

CCV / Air-Oil Separator — The Item Everyone Forgets

Crankcase ventilation clogs over time and starts pushing oil. On the 6.7L, the air-oil separator (PCV/CCV) assembly captures oil mist so it isn’t drawn back through the intake; its element clogs and the housing weeps oil, making it a periodic replacement — pair it with a major service. On the 6.0L, the crankcase breather/CCV can clog and oil-foul the intake if ignored. It’s cheap, easy, and rarely on a factory checklist. Shop the accessories category for CCV and breather components.

Wear Items & “Keep on the Shelf” List

Beyond fluids and filters, a few interval items and spares keep a Power Stroke off the hook:

• Serpentine belt & tensioner — inspect every oil change; replace on cracking or ~60,000–100,000 miles.
• Glow plugs / glow-plug relay — a hard-cold-start diagnosis item; replace as a set when they fail.
• Batteries — diesels are hard on them; test each fall. Two healthy batteries are non-negotiable for reliable cold cranking.
• Transmission & differential fluid — service the trans on a severe-duty interval if you tow; don’t forget the axles and transfer case.
• 7.3 spares: a cam position sensor (CPS) and a blue-spring regulator kit in the glovebox.
• 6.0 spares: a coolant filter kit, a crankcase breather, and — if you’ve had hot-no-start trouble — the standpipe & dummy-plug kit.
• 6.7 spares: the air-oil separator and both fuel filters.

Order of Operations

If you just bought a used Power Stroke with unknown history, do the fluids-and-filters reset in this order:

1. Oil & oil filter with the correct spec and capacity for your engine.
2. Fuel filter(s) — the pair on a 6.7/6.4, the single element + o-ring on a 6.0/7.3. This protects the injection system first.
3. Coolant condition check (and on a 6.0, add a coolant filter) — flush if it’s old, rusty, or off-spec.
4. Air filter — inspect and replace if dirty.
5. CCV / air-oil separator — replace if it’s weeping or overdue.
6. Belt, glow plugs, batteries — inspect and address anything marginal before winter.

Do that once, then hold a consistent interval, and the injection system — the heart of every Power Stroke — stays healthy. From there, browse the full parts catalog or deepen your knowledge with the 6.0 problems guide, the 7.3 weak-points guide, and the down-on-boost diagnosis guide.