Ignition Coils at Easy Life Markets
Easy Life Markets sells ignition coils for petrol engines: single pencil coils, full coil-on-plug sets of four or six, block coil packs for engines with plug leads, and an ignition control module. Each listing gives the reference numbers, connector type and the vehicles the supplier names, so you can match the part to the coil coming off your engine.
If you have a misfire on one cylinder, you may only need one coil. If several coils are old or failing, or your engine uses a single block pack, buy the set or pack that matches your engine. Start with the number printed on the old coil, then check the connector pins and the coil design. Our current range covers Toyota, Lexus, Nissan, Infiniti, MINI, BMW, Peugeot, Citroën, Volkswagen and Audi applications, inside the electrical parts section of our auto parts store.
What an Ignition Coil Does
A car battery supplies 12 volts. A spark plug needs many thousands of volts to fire across its gap under compression. The coil bridges that gap. Inside it are two windings of copper wire around an iron core. The primary winding has a few turns of thicker wire. The secondary winding has many thousands of turns of very fine wire. When the engine computer switches current through the primary winding off, the magnetic field collapses and induces a very high voltage in the secondary winding. That voltage travels to the plug and makes the spark.
This happens for every cylinder on every power stroke, which on a running engine means thousands of times a minute. Heat, vibration and age slowly break down the insulation inside the coil, and that is why coils eventually fail. The ignition coil article on Wikipedia covers the physics and history in more detail.
Types of Ignition Coils
Engines have used several coil layouts over the years. The replacement must match the layout your engine was built with.
Coil-on-plug or pencil coils
Most modern petrol engines have one coil sitting directly on top of each spark plug. Long, slim versions are called pencil coils or stick coils. There are no plug leads, so the spark energy goes straight to the plug. Examples in our range include the single 07K905715F ignition coil for Volkswagen and Audi, the Nissan ignition coil 4 pack, the MINI R56 coil pack of four, the GT-R coil pack of six and the six-piece pencil coil pack for Lexus and Toyota.
Block coil packs
Some four-cylinder engines use one block-shaped unit with four high-tension towers. Plug leads run from each tower to each plug. These packs often use a wasted-spark design, where one coil fires two cylinders at once. In our range, the UF277 coil pack and the 032905106B coil pack are block-style units for four-cylinder engines.
Distributor coils
Older engines used a single coil feeding a distributor, which sent the spark to each cylinder in turn through leads. These are now found mainly on classic vehicles.
Ignition control modules
On some ignition systems, a separate electronic module switches the coil on and off. If it fails, the coil gets no signal and there is no spark. Our ignition control module is listed under the numbers 19017161, 1U2Z12A297AA, 1U2Z12A297AB and 81SF12297FB.
Ignition Coil Types Compared
| Type | Layout | Plug leads | Replace | Common on |
|---|---|---|---|---|
| Pencil or coil-on-plug | One coil per cylinder, on the plug | No | Single coil or full set | Most modern petrol engines |
| Block coil pack | One unit, several towers | Yes | Whole pack | Many older four-cylinder engines |
| Distributor coil | One coil, distributor sends spark | Yes | Coil, plus cap and rotor as needed | Classic vehicles |
| Control module | Electronic switch for the coil | Not applicable | Module only | Some older ignition systems |
Signs Your Ignition Coils Are Failing
- Misfire felt as a shake, stumble or loss of power, often worse under load or uphill.
- Check engine light, steady or flashing. A flashing light usually means a serious misfire; ease off and get it checked.
- Misfire fault codes that point to one cylinder or to random misfires.
- Rough idle or a vibration through the car at a standstill.
- Hard starting, especially in damp or cold weather.
- Worse fuel economy, because unburned fuel is wasted.
- Visible damage: cracked housings, burn marks, swollen bodies or oil in the plug well.
How to Find a Faulty Coil
On a coil-on-plug engine, there is a simple test that needs no special tools.
- Read the fault codes with a code reader to see which cylinder is misfiring.
- With the engine off, swap the coil from that cylinder with a coil from a neighbouring cylinder.
- Clear the codes and drive the car until the misfire returns.
- Read the codes again. If the misfire has moved to the other cylinder, the coil is faulty. If it has stayed put, the plug, injector or something else on that cylinder is the likely cause.
A code reader makes this easy, and our diagnostic equipment section lists the testing tools we carry. Also check the plug while the coil is off. A worn plug with a wide gap forces the coil to produce more voltage and can cause it to fail early. Our spark plug section includes the CR-V iridium spark plug for Honda and Acura engines.
On engines with a block pack and leads, check each lead for cracks and a firm fit. A damaged lead can look exactly like a failed coil. Test the pack with a multimeter if your service information gives resistance values, or have a workshop test it.
How to Choose Replacement Ignition Coils
Reference number
The number on your old coil is the best starting point. Our listings give the main reference in the title and cross-references in the description, such as 9091902230 and 9008019027 for the Lexus and Toyota pencil coils, or 22448-JF00B, UF636 and T0178G for the GT-R set.
Connector type and pin count
Check the shape of the plug on top of the coil and the number of pins. The Lexus and Toyota six-piece pack uses a 4-pin connector, and the MINI R56 coils use a 3-pin connector. A connector that looks close but differs in pin layout will not plug in.
Boot length and body shape
Pencil coils must reach down the plug well and seat firmly on the plug. Compare the length and the boot with your old coil.
Single coil, set or pack
Decide whether you need one coil, a full set or a block pack. A single coil such as the 07K905715F suits a one-off failure. A set of four or six suits an engine where the coils are all the same age, and it saves fitting them one at a time as they fail.
Engine and cylinder count
A four-cylinder engine needs four coil-on-plug coils or one pack. A V6 needs six. Order to match.
Our Current Range at a Glance
| Product | Type | Quantity | Key details | Listed for |
|---|---|---|---|---|
| 6PCS pencil coil pack | Pencil, coil-on-plug | 6 | 4-pin connector, ref 9091902230 | Lexus and Toyota petrol engines |
| GT-R coil pack | Coil-on-plug | 6 | Ref 22448-JF00B, UF636 | 2009 to 2014 Nissan GT-R 3.8L V6 |
| Nissan coil 4 pack | Coil-on-plug | 4 | Black ABS housing, long boot | Nissan and Infiniti |
| MINI R56 coil pack | Pencil | 4 | 3-pin connector, ref 12137550012 | MINI, BMW, Peugeot, Citroën and others |
| 07K905715F coil | Pencil | 1 | Also 07K905715D | Volkswagen and Audi |
| UF277 coil pack | Block pack with leads | 1 pack | Ref 032905106, 0221603006 | Four-cylinder engines |
| 032905106B coil pack | Block pack | 1 pack | Four towers, about 12 x 8 x 5 cm | Four-cylinder engines |
| Ignition control module | Module | 1 | About 23 x 10 x 5 cm | See listing for references |
Our Current Coils in More Detail
Lexus and Toyota six-piece pencil pack
The 6PCS pencil ignition coil pack is a set of six coil-on-plug coils with a 4-pin connector, sold under 9091902230 and 9008019027 and cross-referenced to 1000384, 12868 and CU1273. The supplier lists it for a range of Lexus and Toyota petrol engines from 1998 to 2009. Six coils cover every cylinder of a V6, or half of a V8 if you are replacing one bank.
Nissan GT-R set of six
The GT-R ignition coil pack is listed for the 2009 to 2014 Nissan GT-R with the 3.8L V6. The set is six black coils with integrated connectors and boots, one for each cylinder.
Nissan and Infiniti four-pack
The Nissan ignition coil 4 pack has black ABS housings, a plug-in connector on top, a single mounting tab and a long boot that reaches down to the plug. Four coils give a full change on a four-cylinder engine.
MINI, BMW and PSA engines
The MINI R56 coil pack is a set of four pencil coils with a 3-pin connector under the reference 12137550012. The supplier's application list also covers BMW, Peugeot, Citroën, DS and Rolls-Royce models that use the same coil design.
Volkswagen and Audi single coil
The 07K905715F ignition coil is sold singly, so you can replace only the coil that has failed or order one per cylinder.
Four-cylinder block packs
The UF277 coil pack is a split-line high-voltage pack that feeds the plugs through leads. The 032905106B coil pack is a single unit with four high-tension towers and a multi-pin connector. These are different designs from pencil coils, so check which one your engine uses.
Why Some Replacement Coils Fail Early
When a new coil fails soon after fitting, the coil is not always to blame. Common causes are worn plugs left in place, oil sitting in the plug well, a cracked boot, a loose connector, or a wiring or control fault that keeps current flowing too long. Before you fit new ignition coils, check and fix these. It is the best way to make the new parts last.
Fitting Ignition Coils
Coil-on-plug coils are among the easier parts to replace on a modern engine, often needing only basic hand tools. Block packs and control modules can be harder to reach. Work on a cold engine with the ignition off, and if you are unsure, have a mechanic do it.
- Switch off the ignition and remove the key. Disconnect the battery if your vehicle information advises it.
- Remove the engine cover if fitted.
- Press the release tab and unplug the coil connector. Do not pull on the wires.
- Remove the coil's mounting bolt, then twist gently and pull the coil straight up.
- Check the plug well for oil or water. Oil in the well often means a leaking valve cover gasket that should be fixed, or the new coil will fail early.
- Push the new coil down until the boot clicks onto the plug, refit the bolt and reconnect the plug until the tab locks.
- Work on one cylinder at a time so nothing gets mixed up.
Some mechanics apply a thin film of dielectric grease inside the boot to help it seal and come off easily next time. Use only a product made for this purpose, and only a small amount.
How to Help Ignition Coils Last
- Change your plugs at the service interval. Worn plugs make coils work harder.
- Fix oil leaks into the plug wells promptly.
- Keep the engine bay reasonably clean and dry.
- Replace cracked leads on engines with block packs.
- Do not ignore a flashing check engine light. A sustained misfire can damage the catalytic converter.
Related Electrical Sections
Ignition is one part of a system that also needs good starting and charging. If the engine cranks slowly, look at our starters and batteries sections. If warning lights come and go, the charging system may be the cause, and our alternators section lists units by part number. Ignition timing depends on crankshaft and camshaft position signals, so a fault in our engine sensors range can also stop the coils firing. Damaged connectors can sometimes be replaced from our wiring harnesses range.
Who Our Ignition Coils Suit
Our coils suit drivers fixing a single misfire on a daily car, owners replacing a full set on a higher-mileage engine, and workshops ordering by reference number. Because coil designs vary so much, they are a part to match by number and connector, not by looks alone. If your number is not listed yet, ask us, as our range grows over time.
Buying Ignition Coils From Easy Life Markets
Every listing shows the supplier's reference numbers, the quantity in the set and photos of the actual part, so you can compare it with your old coil. The current price and availability are shown on each product page. If you would like help matching a coil, send us the number on your old part through our contact page. See our shipping policy for delivery details, our return and refund policy for returns, and our FAQ for other questions.
Frequently Asked Questions
Should I replace one coil or all of them?
If only one coil has failed and the others are fairly new, one is enough. If they are all the same age and mileage, replacing the set saves repeat work as the others fail.
What causes ignition coils to fail?
Heat, vibration and age break down the insulation inside. Worn plugs, oil in the plug wells and damaged leads all add strain and shorten coil life.
Can I drive with a bad coil?
Only gently and for a short distance. A misfiring cylinder sends unburned fuel into the exhaust, which can overheat and damage the catalytic converter.
How do I know which coil fits my car?
Match the number on your old coil to our listings. Then check the connector pins, the boot length and whether your engine uses individual coils or a block pack.
Should I change the plugs when I change the coils?
It is a good idea if the plugs are near or past their interval. The coil is already off, and new plugs reduce the load on the new coil.
What is an ignition control module?
It is the electronic switch that tells the coil when to fire on some ignition systems. If it fails, there may be no spark at all, even with good coils.
Do I need special tools to change a coil?
On most coil-on-plug engines you only need a socket set to remove the engine cover and the coil bolts. A code reader helps you find the misfiring cylinder first. Block packs and control modules may need more dismantling, so check your vehicle information before you start.
Are block coil packs and pencil coils interchangeable?
No. The engine is designed for one layout. Always replace like with like.