Collection: Engine Parts

Engine Parts Built to Keep Your Engine Running Right

An engine that fires clean, idles smooth and pulls hard is the difference between a car you trust and one you worry about every time you turn the key. Most of the rough running, stalling and power loss drivers complain about traces back to a short list of engine parts: spark plugs, ignition coils, glow plugs, turbochargers, engine mounts and the gaskets that seal everything together. The genuinely good news is that these are some of the most affordable parts you can buy for the amount of difference they make, and most are well within reach of anyone with basic hand tools and an afternoon.

This collection brings together engine parts for gasoline and diesel engines, naturally aspirated and turbocharged, across passenger cars, SUVs and trucks. We add new fitments on a rolling basis as new vehicles and OE numbers come through, so this page is written to stay useful even as the exact lineup grows. Below you will find how these parts work, the warning signs that tell you which one has failed, how to choose the right spec for your engine, and how to fit them with confidence.

What Counts as Engine Parts

"Engine parts" covers a wide family of components, and this collection focuses on the ones that fail often enough, and are easy enough to replace yourself, that stocking them makes sense for a DIY-friendly store. The main groups are:

• Ignition components: spark plugs in copper, platinum and iridium, plus the ignition coils or coil packs that fire them.
• Diesel starting aids: glow plugs and glow plug control modules that get a cold diesel engine to catch and run smoothly.
• Forced induction: turbochargers and turbo kits that restore lost power and fix boost leaks or failed bearings.
• Mounting and support: engine mounts that isolate vibration and keep the engine from shifting under load.
• Sealing: gaskets and seals that keep oil, coolant and combustion gases where they belong.

Engines share a basic job across every make and model: draw in air and fuel, compress it, ignite it, and send the resulting force through the crankshaft. Ignition parts handle the spark, forced induction parts pack in more air for more power, and mounts and gaskets quietly keep everything in place and sealed. When any one of them fails, the symptoms usually show up fast.

How to Tell Which Engine Part Has Failed

Spark Plugs: Copper, Platinum or Iridium

Plug material changes how long a plug lasts and how well it fires. Getting this right matters more than people expect, because the wrong heat range or a worn plug can cause fouling, pre-ignition or a weak spark that never quite gets the mixture burning cleanly.

Always match the plug by its interchange or part number rather than thread size alone, since heat range and reach both affect how the engine runs. Replace plugs as a full set, gap them to spec before fitting, and torque them correctly. Overtightening a plug in an aluminum head is one of the more expensive mistakes a DIYer can make.

Ignition Coils and Misfires

Some engines use one coil for all cylinders, others use a coil pack, and many modern engines use an individual coil-on-plug for each cylinder. A failing coil almost always produces a misfire code tied to a specific cylinder, and the simplest diagnostic trick is to physically swap a coil to another cylinder: if the misfire code moves with the coil, you have found your part.

Glow Plugs for Diesel Engines

Diesel engines rely on compression heat to ignite fuel, but that is not always enough on a cold start. Glow plugs pre-heat the combustion chamber for a few seconds before and after cranking so the engine lights off smoothly instead of struggling and smoking. Weak or dead glow plugs show up as long cranking times, white smoke and a rough idle until the engine warms up, and they are usually replaced as a full set since they wear at similar rates.

Turbochargers and Boost Problems

A turbocharger uses exhaust gas to spin a turbine that forces extra air into the engine, which is how a smaller engine can produce the power of a larger one. Turbos fail in two main ways: the bearing wears and starts leaking oil into the intake and exhaust, or the vanes and housing suffer physical damage, often from debris or oil starvation. Before replacing a turbo, it pays to rule out the cheaper causes of lost boost, like a split intercooler pipe, a loose clamp or a stuck wastegate, since those produce very similar symptoms for a fraction of the cost.

Engine Mounts: The Quiet Part That Changes Everything

Engine mounts do not get much attention until they fail, and then they are impossible to ignore. A torn or collapsed mount lets the engine rock under acceleration and braking, which shows up as a clunk, a shudder through the cabin, or a knock you can feel more than hear. Mounts are usually replaced in a set so the engine sits evenly, and on transverse front-wheel-drive engines, a torque mount or dogbone mount often needs attention alongside the main mounts.

How to Choose the Right Engine Part

• Year, make, model and engine code. The same model name can be sold with several different engines, and parts are rarely interchangeable between them.
• Interchange or OE number. This is the most reliable way to match a spark plug, coil or turbo to your exact engine.
• Naturally aspirated or turbocharged. Boosted engines often specify a colder plug and tighter gap than the naturally aspirated version of the same block.
• Automatic or manual. Engine mount part numbers can differ by transmission type even on the same engine.
• Fuel type. Diesel glow plugs and gasoline spark plugs are not interchangeable systems, so confirm which your engine uses.
• Single part or full set. Plugs, coils and glow plugs wear at similar rates across cylinders, so replacing the whole set usually costs little more and avoids a comeback repair.

Fitting Tips That Prevent Comebacks

• Let the engine cool fully before removing spark plugs from an aluminum head, since hot threads are far more likely to strip.
• Use a torque wrench on plugs and mount bolts. Both overtightening and undertightening cause real problems.
• Apply a light coat of anti-seize to spark plug threads unless the plug maker says not to.
• Replace the gasket every time you remove a valve cover, oil filter housing or turbo, even if the old one looks fine.
• Support the engine with a jack before removing any mount, never work with it unsupported.
• Clear fault codes after the repair and take a test drive to confirm the fix before calling the job done.

Engine Parts by Driving Style

Daily Commuters

For stop-and-go driving, iridium spark plugs and a quality coil set are the sensible upgrade, since they handle frequent cold starts well and go the longest between services. A smooth idle and clean throttle response make a real difference when you are sitting in traffic every day.

Towing and Heavy-Duty Trucks

Towing loads the engine harder and runs it hotter for longer stretches, which is tough on spark plugs, coils and engine mounts alike. A fresh set of plugs rated for your engine, along with solid mounts, keeps power delivery steady when you are pulling a trailer up a grade.

Diesel Trucks and Vans

Cold-climate diesel owners feel a failing glow plug set immediately, every single morning. Replacing them as a complete set rather than one at a time avoids the frustration of a rough-running engine that never quite smooths out.

Turbocharged and Performance Engines

Boosted engines are less forgiving of worn ignition parts, since a weak spark under high cylinder pressure is more likely to misfire. Matching the correct heat range and gap for a turbocharged application, rather than reusing naturally aspirated specs, keeps the engine running cleanly under boost.

Older High-Mileage Engines

Engines well past 100,000 miles often develop oil leaks at the valve cover or filter housing gasket, and engine mounts soften and crack with age and heat cycling. Addressing both at once, rather than one at a time, usually saves a second trip under the hood.

Why Engine Parts Fail Early

• Reusing old gaskets instead of fitting new ones with every service.
• Skipping the full set when one spark plug, coil or glow plug fails, so the others follow soon after.
• Ignoring a small boost leak until it strains the turbo bearing.
• Letting a torn engine mount go unreplaced, which then stresses the mount next to it.
• Using the wrong heat range plug for a modified or turbocharged engine.
• Overtightening spark plugs or mount bolts past the specified torque.

Engine Parts Maintenance Schedule

Real Engine Problems and What to Order

"My engine shakes badly at red lights but smooths out once I'm moving."

This is a textbook worn engine mount or a misfire limited to idle. Check for a fault code first. If there is none, inspect the mounts with the hood open while a helper gently revs the engine; visible engine movement points to the mount.

"I'm getting a random misfire code that jumps between cylinders."

A fuel delivery or vacuum leak issue can look like this, but worn spark plugs across the board are the more common cause. Replace the full set rather than chasing one cylinder at a time.

"My diesel takes forever to start on cold mornings."

Classic failing glow plug symptoms. Test each plug's resistance with a multimeter, or simply replace the set if several are old, since they tend to fail in a cluster rather than one at a time.

"I hear a whistling sound under hard acceleration and boost feels weak."

Check every intercooler pipe and clamp first. A split pipe or a popped clamp is a five-minute fix and far more common than a failed turbo.

"There's an oil smell and a burning smell after a long drive."

Look at the top and front of the engine. A valve cover or filter housing gasket leaking onto a hot exhaust manifold produces exactly this smell, and it is an inexpensive fix if caught early.

Engine Parts Glossary

• Heat range: how quickly a spark plug transfers heat away from its tip; the wrong range causes fouling or pre-ignition.
• Coil-on-plug: an ignition design where each cylinder has its own coil mounted directly on the spark plug.
• Boost leak: air escaping the intake piping between the turbo and the engine, reducing power.
• Wastegate: a valve that limits turbo boost pressure to a safe level.
• Torque mount: a mount that resists engine rotation under acceleration, common on transverse engines.
• OE number: the original equipment part number used to confirm exact fitment.

Frequently Asked Questions

How do I know if it's the spark plug or the coil?

Swap the coil to a different cylinder. If the misfire code follows the coil, the coil is at fault. If it stays on the same cylinder, suspect the plug.

Can I replace just one spark plug or coil?

You can, but since the others are the same age and see the same wear, replacing the full set avoids a second repair soon after.

Do turbocharged engines need special spark plugs?

Often yes. Boosted engines typically call for a colder plug and a tighter gap than the naturally aspirated version of the same engine.

Is it safe to drive with a cracked engine mount?

For a short distance, yes, but a failed mount lets the engine move more than it should, which stresses hoses, wiring and other mounts. Replace it promptly.

Do you ship engine parts worldwide?

Yes. See shipping, warranty and returns for details.

Why Buy Engine Parts From Easy Life Auto Parts

Every listing shows the OE or interchange number so you can confirm fit before you order, and if you are unsure, send your VIN through the contact page and we will check it for you. We ship worldwide with tracking on the track order page. For related systems, see cooling system parts, exhaust parts, fuel system parts, car electrical parts and turbochargers.

For the mechanical background on how combustion engines work, see the internal combustion engine article on Wikipedia. Then browse the engine parts above and get your engine running the way it should.

Mistakes People Make Buying Engine Parts Online

We see the same few mistakes over and over, so it's worth saying them plainly. The biggest one is ordering by make and model year alone and skipping the engine code. Two Camrys from the same year can carry different engines depending on trim and market, and a spark plug or coil that fits one won't necessarily fit the other. Pop the hood, find the engine code on the block or under the hood sticker, and match parts to that, not just the car's name.

The second mistake is assuming cheaper always means worse, or that expensive always means better. Price tracks brand reputation and materials more than it tracks fitment. A mid-priced coil pack from a known manufacturer will usually outlast a bargain-bin one from a brand you've never heard of, and will often outlast an inflated dealer-only part too. Read what the part is made of and who makes it before you decide on price alone.

The third mistake is ignoring torque specs during install. Over-tightening a spark plug can crack the cylinder head threads; under-tightening a mount bolt can let it work loose within a few thousand miles. A cheap torque wrench costs less than a single tow, and it pays for itself the first time you use it correctly.