Ford Fiesta Spark Plug Type
Factory spark plug specifications for the Ford Fiesta. Type, gap, and torque specs per engine from the OEM service manual.
Last updated: 2026-10-27 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
1.0L EcoBoost: HYFS 093 YEC, gap 0.7 mm, torque 115 in-lbs. 1.6L Duratec: CYFS 12Y EC, gap 0.7-0.8 mm, torque 133 in-lbs. 1.6L EcoBoost: CYFS 13Y RC, gap 0.8 mm, torque 133 in-lbs.
| Generation | Years | Top spec |
|---|---|---|
| 1.0L EcoBoost | 2011-2019 | HYFS 093 YEC |
| 1.6L Duratec | 2011-2019 | CYFS 12Y EC |
| 1.6L EcoBoost | 2014-2019 | CYFS 13Y RC |
This vehicle's factory manual
The spec is above. This opens the 2011 Ford Fiesta factory book. Use another year if yours is older.
Ford Fiesta maintenance schedule
Know the exact spark plug type job for your Ford Fiesta
1.0L EcoBoost: HYFS 093 YEC, gap 0.7 mm, torque 115 in-lbs. 1.6L Duratec: CYFS 12Y EC, gap 0.7-0.8 mm, torque 133 in-lbs. 1.6L EcoBoost: CYFS 13Y RC, gap 0.8 mm, torque 133 in-lbs.
Spark plug type and gap depend on the exact engine. Confirm the engine code before buying plugs or setting the gap. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Exact Vehicle Check
The button opens the factory book for this vehicle. Use the engine picker only when your trim is not the one this page already matched.
1.0L EcoBoost
Representative 2011 manual branch for 2011-2019
External Pages
Fiesta S, Automatic DCT
External Pages — 2011 Ford Fiesta S, Automatic DCT Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Ford >> 2011 >> Fiesta S, Automatic DCT >> Repair a...
Open factory section →External Pages
Fiesta S, Standard
External Pages — 2011 Ford Fiesta S, Standard Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Ford >> 2011 >> Fiesta S, Standard >> Repair and Diagnos...
Open factory section →1.6L Duratec
Representative 2011 manual branch for 2011-2019
External Pages
Fiesta S, Automatic DCT
External Pages — 2011 Ford Fiesta S, Automatic DCT Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Ford >> 2011 >> Fiesta S, Automatic DCT >> Repair a...
Open factory section →External Pages
Fiesta S, Standard
External Pages — 2011 Ford Fiesta S, Standard Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Ford >> 2011 >> Fiesta S, Standard >> Repair and Diagnos...
Open factory section →1.0L EcoBoost
- →Coil-on-plug design. Use only specified plug type to avoid misfire.
1.6L Duratec
- →Motorcraft CYFS-12-YEC or equivalent.
1.6L EcoBoost
- →Turbocharged engine requires correct heat-range plug.
Manual already checked Amazon for you
You came here for the exact spec. Now here is the exact part — plus the two things people always forget and have to run back to the store for.
Ford Fiesta Spark Plugs Plugs
Buy the exact plugs with the right heat range and gap. Don't guess on spark plugs.
We earn a small commission if you buy through these links — at zero extra cost to you. We only suggest items that match the factory specs on this page.
Spark Plugs — Manual's Parts List
Exact plugs, exact torque, no stripped threads.
- 1Spark PlugsShop →
HYFS 093 YEC — buy the full set, not one at a time
- 2Torque Wrench (3/8")Shop →
Aluminum heads strip at 18 ft-lbs — torque, do not guess
- 3Spark Plug SocketShop →
Magnetic or rubber insert — protects the ceramic
- 4Anti-Seize CompoundShop →
A dab on the threads prevents the 100k-mile weld
- 5Dielectric GreaseShop →
On the boot — prevents misfires from moisture
Get everything at once
One search shows all of the above on a single page.
Links go to Amazon via our affiliate store (aiautorepair-20). We earn a small commission at no extra cost to you — it keeps the site running and the data free.
One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Iridium Spark Plugs
Long-lasting performance plugs for modern engines.
Spark Plug Socket
Magnetic or rubber-insert socket to prevent damage.
Gap Gauge
Ensure your plugs are set to the exact factory spec.
Torque Wrench
Crucial for tightening plugs without stripping threads.
Anti-Seize Lubricant
Prevents plugs from welding to the cylinder head.
Dielectric Grease
Protects ignition boots and connectors from moisture.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Ford Fiesta so the job is ready when the parts arrive.
Frequently Asked Questions
- What spark plugs does a Ford Fiesta use?
- Depends on engine: 1.0L EcoBoost uses HYFS 093 YEC with 0.7 mm gap. 1.6L Duratec uses CYFS 12Y EC with 0.7-0.8 mm gap. 1.6L EcoBoost uses CYFS 13Y RC with 0.8 mm gap.
- What is the spark plug torque for a Ford Fiesta?
- 115 in-lbs (13 Nm) for 1.0L EcoBoost. 133 in-lbs (15 Nm) for 1.6L Duratec and 1.6L EcoBoost.
- What spark plug type does a Ford Fiesta use?
- 1.0L EcoBoost: HYFS 093 YEC, gap 0.7 mm, torque 115 in-lbs. 1.6L Duratec: CYFS 12Y EC, gap 0.7-0.8 mm, torque 133 in-lbs. 1.6L EcoBoost: CYFS 13Y RC, gap 0.8 mm, torque 133 in-lbs.
- What is the spark plug gap for a Ford Fiesta?
- 0.7 mm (0.028 in) (2011-2019)
- How often to replace spark plugs on a Ford Fiesta?
- Factory service manuals typically recommend spark plug replacement every 30,000–100,000 miles depending on plug material (copper, platinum, or iridium). Check your maintenance schedule for the exact interval.
Get the Complete Maintenance Schedule for Ford Fiesta
Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.
Not sure you want to DIY? Compare local shop pricing first.
Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-27