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Call or Text (352) 722-5295Engine parts on the 2018-2021 Ford F-150 3.0L
Ford built the 3.0L Power Stroke for exactly one truck, the F-150. It comes from the Ford/PSA 'Lion' V6 family, was assembled in Dagenham, England, and arrived for 2018 to answer the Ram 1500 EcoDiesel. The block is compacted-graphite iron with a forged-steel crank, the same material approach Ford uses on the 2.7L EcoBoost, with aluminum heads, a cast-aluminum oil pan and a two-stage oil pump. The valvetrain is DOHC with four valves per cylinder and maintenance-free hydraulic lifters. The bottom end has six-bolt main caps with two cross bolts, piston cooling jets and 16.0:1 compression. The whole engine weighs 501 lb with oil. Factory rating is 250 hp at 3,250 rpm and 440 lb-ft at 1,750 rpm, and it never changed. The 2021 model year was the last: the diesel carried over unchanged into the new 14th-generation F-150 and was then dropped. For the rest of Ford's diesel lineup, start at our Power Stroke hub.
What fails and why
The timing belt is the big-ticket item. The cams are driven by a cogged belt behind the front timing cover, and the schedule calls for replacement at 150,000 miles. It gives no symptom before it fails, and a broken belt can mean valve-to-piston contact, so on a high-mileage truck treat it as a planned major service.
Oil changes are the everyday headache. Owners report a pan baffle that holds back about 3 quarts on a gravity drain, poor drain-plug access, and that a Fumoto F107N drain valve would not fit. Overfills, underfills and dealer short-fills come up again and again on the F-150 forums, so check the cold dipstick after every change.
Auto Start-Stop is standard on the diesel and cycles the starter and AGM battery constantly, and owners report battery state-of-charge complaints. One more to know, even though it lives in the fuel system: this engine runs a Bosch CP4 high-pressure pump, the same family tied to debris failures on other diesels. Low-lubricity fuel and running the tank dry are the named risks. Warning signs include sputtering, stalling, a no-restart, low rail pressure or metal in the fuel filter.
Stock replacement vs. upgrade
On this engine, the best upgrade is maintaining it better than the minimum. Use the oil Ford specifies, 5W-30 API FA-4 for normal driving and 5W-40 API CK-4 for severe duty, with the Motorcraft FL2081 cartridge filter. The schedule counts towing, idling and stop-and-go driving as severe duty, so a truck that tows or runs short trips in Florida heat belongs on the 3,000-5,000 mile end of the interval table. Belts are replace-when-due parts: the inner and outer serpentine belts both run on a 150,000-mile or as-required interval. Match the factory belt for each position and you are done.
What we carry
This collection covers the front of the engine and the oil. On the belt side, we carry Dayco poly-rib serpentine belts listed for the 2018-2021 3.0L Power Stroke: the 5060500 inner belt and the 5060585 outer belt. On the oil side, there is Lucas Oil Heavy Duty Oil Stabilizer (10001), the Lucas Synthetic Heavy Duty Oil Stabilizer (10130), Lucas TB Zinc Plus engine break-in additive (10063), and the XDP XD275 X-Factor High Performance Oil Additive in an 8 oz bottle. Additives go in alongside the right oil, never in place of it.
Fitment notes
Every engine-specific part here fits the 3.0L diesel only. The F-150's gas engines, the 2.7L and 3.5L EcoBoost, the 3.3L and the 5.0L, share nothing with it; the 2.7L EcoBoost shares a block-material philosophy, not parts. Watch for listings labeled '2018-2020 F-150 3.0L' that are really for the 3.0L Nano EcoBoost used in other Fords. The diesel came in SuperCab and SuperCrew F-150s, never a Regular Cab, and was never offered in the F-250 or F-350 Super Duty. Both Dayco belts are listed for all four model years. Verify by VIN before you order.
Frequently asked questions
Does the 3.0L Power Stroke have a timing belt or a timing chain?
A belt. The camshafts run on a cogged timing belt behind the front timing cover, and the maintenance schedule calls for replacing it at 150,000 miles. It gives no warning before it fails, so plan for it on a high-mileage truck.
How much oil does the F-150 3.0L diesel take?
6.5 US quarts with the filter. Ford calls for 5W-30 API FA-4 in normal driving, 5W-40 API CK-4 for severe duty and 0W-40 CK-4 below -20 F, with the Motorcraft FL2081 cartridge filter.
Why does my oil level read wrong after a change?
Owners report that a baffle in the pan holds back about 3 quarts on a gravity drain, so what comes out is not a good guide to what goes back in. Fill to spec, then confirm with a cold dipstick check instead of trusting the bottle count.
Will a part listed for a '3.0L' Ford fit my F-150 diesel?
Not always. Many listings for a '2018-2020 F-150 3.0L' are actually for the 3.0L Nano EcoBoost used in other Ford models, and the F-150's gas engines share no engine-specific parts with the diesel. Look for listings that name the 3.0L Power Stroke, or use the fitment checker on the product page.
Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.