Loading...

Fiat 1100 Ignition Coils

Fiat 1100 Ignition coils

Starting at $12.95, AutoBuffy stocks 4 ignition coils from NGK, Standard Ignition, and GPD to fit your Fiat 1100. An ignition coil converts low battery voltage into the high-voltage spark the plug needs to fire the air-fuel mixture. A failed coil causes misfires, rough idle, and catalytic converter damage if left unaddressed.

Signs your Fiat 1100 needs a new ignition coil

  • Check Engine light on with a misfire code (P0300–P0312) stored in the ECU
  • Engine misfires or stumbles under acceleration, especially when cold or at low RPM
  • Rough, uneven idle that may feel like a shake or shudder through the cabin
  • Noticeably reduced fuel economy with no other obvious cause
  • Hard starting or extended cranking before the engine catches
  • Strong fuel smell from the exhaust, caused by unburned fuel passing through a dead cylinder

Which ignition coil should you buy for your Fiat 1100?

The main decision is whether to replace only the failed coil or all coils at once, and whether to choose an OEM-equivalent or an upgraded unit. Coil-on-plug designs (one coil per cylinder) are the most common modern layout, but some Fiat 1100 engines use a coil pack or a distributor-based coil, so confirming the correct type before ordering is essential.

OEM-Equivalent Replacement
Best for
Restoring original performance on a daily driver
What you get
Direct fit, factory-spec output voltage, plug-and-play installation with no modifications
Single Coil Replacement
Best for
Budget repair when only one cylinder is misfiring and other coils test good
What you get
Lower upfront cost; swap only the failed unit and verify with a scan tool
Full Set Replacement
Best for
High-mileage engines or when multiple coils are weak or failing
What you get
Consistent spark output across all cylinders, avoids repeat labor costs as remaining coils age
Performance Upgrade Coil
Best for
Modified engines, forced induction, or high-compression builds needing stronger spark
What you get
Higher peak voltage and faster charge time; improves ignition reliability under demanding conditions

Ignition coils brands we stock for your Fiat 1100

NGK
1 option · from $24.95
Standard Ignition
1 option · from $19.95
GPD
1 option · from $16.95
SKP
1 option · from $12.95

Replacing ignition coils on a Fiat 1100

Easy⏱ 30 minutes to 1.5 hoursOBD-II scan tool (to read and clear misfire codes)Socket set with extensionFlathead and Phillips screwdriversNeedle-nose pliers (for stubborn connector clips)Dielectric grease

Disconnect the negative battery terminal, then remove any engine covers blocking access to the coils. Unplug the electrical connector on the coil, remove the retaining bolt, and pull the coil straight up off the spark plug. Apply a small amount of dielectric grease to the inside of the new coil boot before pressing it firmly onto the plug, reinstall the bolt, and reconnect the harness. Clear any stored misfire codes with the scan tool after completing the replacement.

Frequently asked questions

How much does it cost to replace ignition coils on a Fiat 1100?
Parts start at $12.95 per coil at AutoBuffy. A single coil replacement is the least expensive route, but replacing the full set costs more upfront and saves labor if multiple coils are aging. Shop labor typically adds to the total, though many owners complete this job at home in under two hours.
Can I drive my Fiat 1100 with a bad ignition coil?
You can drive short distances, but it is not recommended. A misfiring cylinder sends raw unburned fuel into the exhaust, which can overheat and permanently damage the catalytic converter within miles. Continued driving also stresses the remaining coils and O2 sensors, turning a straightforward coil replacement into a much more expensive repair.
How long do ignition coils last on a Fiat 1100?
Ignition coils on most modern vehicles are designed to last well into the six-figure mileage range under normal conditions. Heat, oil contamination from leaking valve cover gaskets, and worn spark plugs that force coils to work harder are the most common causes of early failure. Replacing spark plugs on schedule reduces coil wear significantly.
Should I replace all ignition coils at once on my Fiat 1100?
If one coil has failed on a higher-mileage Fiat 1100, replacing the full set is often the practical choice. All coils have the same age and heat exposure, so others are likely close to failure. Doing them together saves labor time and avoids returning to the same job within a few months.
Will a bad ignition coil damage the catalytic converter on a Fiat 1100?
Yes. A misfiring coil allows unburned fuel to enter the exhaust stream, where it ignites inside the catalytic converter and causes extreme internal temperatures. This can melt the ceramic substrate inside the converter, leading to a clogged exhaust and a repair that costs several times more than the original coil replacement.
How do I know which cylinder has the bad coil on my Fiat 1100?
Connect an OBD-II scan tool and read the misfire codes — a P030X code identifies the specific misfiring cylinder (for example, P0302 indicates cylinder 2). You can confirm the faulty coil by swapping it to a known-good cylinder and checking whether the misfire code follows the coil or stays at the original cylinder position.

Shop ignition coils by year for the Fiat 1100

196719661965196419631962196119601959195819571956195519541953195219511950

More parts for your Fiat 1100

Engine Oil Pressure SwitchVehicle BatteryDrum Brake ShoeAccessory Drive BeltVoltage RegulatorIgnition CondenserDistributor CapRadiator Coolant Hose

Ignition coils for other Fiat models

Fiat 600DFiat 1200Fiat X-1/9Fiat 500LFiat PalioFiat 128