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Parts for your 2004 Mitsubishi Lancer-Spark plugs

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Permatex Dielectric Tune-Up Grease 9g - PX81150

Permatex Dielectric Tune-Up Grease 9g - PX81150

$24
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Explore 4WD & Adventure

GV Tools 3 Piece Spark Plug Socket Set - GV012

GV Tools 3 Piece Spark Plug Socket Set - GV012

$14
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Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

$37
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Mechpro Spark Plug Wrench 16mm - MPBE101

Mechpro Spark Plug Wrench 16mm - MPBE101

$12
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Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

$14
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Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

$27
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T&E Tools Ignition Spark Tester

T&E Tools Ignition Spark Tester

$39
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Toledo Spark Plug Gap Gauge - 302163

Toledo Spark Plug Gap Gauge - 302163

$5
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Repco Spark Plug Extension Bar 21mm - RT24846
Clearance

Repco Spark Plug Extension Bar 21mm - RT24846

$29
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Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

$297
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T&E Tools Spark Plug Boot Pliers

T&E Tools Spark Plug Boot Pliers

$30
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Repco Petrol Cylinder Compression Tester - RST160

Repco Petrol Cylinder Compression Tester - RST160

$130
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Nulon Engine Stop Smoke 500ml - SS
Clearance

Nulon Engine Stop Smoke 500ml - SS

$10
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Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

$66
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T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

$35
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Toledo Spark Plug Starter - 302157
Clearance

Toledo Spark Plug Starter - 302157

$6
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Toledo Spark Plug Thread Chaser - 302168

Toledo Spark Plug Thread Chaser - 302168

$29
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Toledo HD Spark Plug Firing Tester - 302167

Toledo HD Spark Plug Firing Tester - 302167

$36
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Toledo Spark Plug Thread Kit - 302300

Toledo Spark Plug Thread Kit - 302300

$42
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Powerbuilt Spark Plug Socket - 643001

Powerbuilt Spark Plug Socket - 643001

$9
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Powerbuilt Spark Plug Socket - 643004

Powerbuilt Spark Plug Socket - 643004

$8
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Toledo Spark Plug Thread Kit 14mm - 302176

Toledo Spark Plug Thread Kit 14mm - 302176

$42
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Powerbuilt Spark Plug Socket - 643005

Powerbuilt Spark Plug Socket - 643005

$11
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Toledo Spark Plug Tool 21mm Hex - 302223

Toledo Spark Plug Tool 21mm Hex - 302223

$56
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Repco Heavy Duty Spark Plug Boot Pliers - RST63

Repco Heavy Duty Spark Plug Boot Pliers - RST63

$46
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Toledo Spark Plug Tester - Box Type - 302165

Toledo Spark Plug Tester - Box Type - 302165

$22
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Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

$45
Fitment Notes:
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T&E Tools Electronic Ignition Spark Tester

T&E Tools Electronic Ignition Spark Tester

$56
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Showing 1 - 39 of 46 products

Everything You Need to Know About Spark Plugs for the 2004 Mitsubishi Lancer

The 2004 Mitsubishi Lancer is a reliable sedan that has been a popular choice among Aussie drivers for years. One important part that keeps this vehicle running smoothly is the spark plug. Spark plugs are definitely fitted to the 2004 Mitsubishi Lancer, and understanding their role and maintenance can help ensure your car keeps performing at its best.

Spark plugs are small but mighty components in the engine of the 2004 Mitsubishi Lancer. Their main job is to ignite the air-fuel mixture inside the engine's cylinders. How? They create a tiny but powerful spark at just the right moment during the engine's combustion cycle. This spark sets off the explosion that powers the pistons, ultimately making your wheels turn.

Without the spark plugs firing efficiently, the 2004 Lancer's engine will struggle to start, run rough, or lose power. Poorly functioning spark plugs can cause misfires, reduced fuel economy, and higher emissions - none of which you want when you're cruising down the highway or stuck in city traffic.

Knowing when to replace spark plugs is key to keeping the engine in prime condition. For the 2004 Mitsubishi Lancer, it is generally recommended to check and replace the spark plugs every 30,000 to 50,000 kilometres depending on your driving conditions and the type of spark plugs fitted. If you're using standard copper spark plugs, leaning closer to the 30,000-kilometre mark is a good idea. If you have platinum or iridium spark plugs, these are more durable and might last longer, sometimes up to 100,000 kilometres, but regular inspections are still important.

Some signs that it's time to replace your spark plugs include rough idling, difficulty starting the engine, decreased fuel efficiency, or a noticeable loss of power when accelerating. If you notice any of these issues, booking a service to inspect your spark plugs can save you from bigger engine problems down the track.

When servicing the spark plugs on a 2004 Mitsubishi Lancer, there are a few points to keep in mind. First, always use the type of spark plugs recommended in the owner's manual. This ensures the right heat range and compatibility with your engine setup. Secondly, it's important that the plugs are gapped correctly - that is, the gap between the electrodes should match the manufacturer's specifications. Improper gaps can lead to weak sparks and poor engine performance.

Replacing spark plugs is a straightforward job for a qualified mechanic or an experienced DIYer, especially with the 2004 Mitsubishi Lancer's accessible engine layout. Before replacement, the mechanic will remove the ignition coils or wires carefully to avoid damage. The old spark plugs are then backed out, and new ones installed with the correct torque - too tight or too loose can cause problems.

Something worth noting is that modern spark plugs like iridium ones not only last longer but also help improve fuel economy and reduce emissions. Investing in high-quality spark plugs can pay off over time, especially if you regularly put a bit of mileage on your Lancer.

Aside from replacement, maintenance includes checking the spark plugs at every scheduled service and making sure the ignition coils and leads are in good condition. Faulty ignition components can sometimes mimic spark plug problems and cause misfires or rough running.

Regular upkeep of the spark plugs on your 2004 Mitsubishi Lancer will keep the engine running clean and efficient, reducing the likelihood of breakdowns and maintaining that smooth ride you expect. It's a simple but vital part of vehicle maintenance that not many give enough attention to, but it is essential if you want your Lancer to keep going strong.

So, if you own a 2004 Mitsubishi Lancer and haven't thought about spark plugs lately, it's time to give them a look. They might be small, but they play a huge role in your car's health and performance. A little attention to your spark plugs can go a long way in maintaining reliable, hassle-free driving over the years.