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2019 Ford Ranger
2019 Ranger 2.3L EcoBoost spark plug is Motorcraft SP-578. Gap is 0.027-0.031 in. Firing order is 1-3-4-2.
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 Ranger Owner's Manual, second printing, December 2018, engine specifications (opens in a new tab), Ford Motor Company, published 2018-12-01, read 2026-10-15.
Numbers on this page come from the cited source. Match the engine before you use a capacity or a torque. Do not work under a vehicle held only by a jack.
Dealer for spark plug replacement
The Motorcraft parts note says to contact a dealer for spark plug replacement and to replace plugs at the scheduled interval.
| Item | Figure | Where it comes from |
|---|---|---|
| Plug | Motorcraft SP-578. Gap 0.027-0.031 in (0.70-0.80 mm). Ignition is coil on plug. | Engine specifications and Motorcraft parts |
| Firing order | 1-3-4-2. | Engine specifications, 2.3L EcoBoost |
2.3L EcoBoost
Firing sequence from the 2019 Ranger owner's manual engine specifications. Sequence only.
Illustration, not to scale; confirm with your owner's manual. This is the firing sequence only. It does not show where each cylinder sits on the engine.
Source for this drawing: 2019 Ford Ranger Owner's Manual, engine specifications, 2.3L EcoBoost.
The parts table lists spark plugs SP-578. The engine specifications list a gap of 0.027-0.031 in (0.70-0.80 mm) and coil-on-plug ignition.
The 2.3L EcoBoost firing order is 1-3-4-2. The drawing repeats that order only.
The parts note says to contact a dealer for spark plug replacement.
Compression ratio for this engine is 10:1. That is a specification, not a service step.
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Part
Motorcraft SP-578
The only spark-plug number in this manual's parts table.
Ranger Motorcraft parts (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
Tool
Dealer for spark plug replacement
The Motorcraft parts note says to contact a dealer for spark plug replacement and to replace plugs at the scheduled interval.
2019 Ranger engine specifications (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.