What Does A Spark Plug Do
Spark plugs can make or break your engine’s performance. Understand how they work, how to recognize a faulty one, and get expert advice on choosing the right spark plug for better engine health.
Jul 21, 2026
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Renault Spark Plug Wire
9 itemsMisfires, rough idle, or weak acceleration can start with aging ignition wires. Replace your spark plug wires set to help deliver steady spark and restore smoother engine performance.
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A-Premium®Part # APSPW021
5 Pcs Spark Plug Wire Set for Mazda 626 1983-1985 Toyota Pickup Celica 1975-1978
4.660 Reviews
$24.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 1986 - 1986 Renault R5, 1984 - 1985 Renault LeCar, 1983 - 1985 Mazda 626, 1975 - 1978 Toyota Celica, 1975 - 1978 Toyota Pickup
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Renault
Item LocatedUnited States
Quantity5
Part interchange
671-4012, 90999-99025, 90999-99026, 90999-99029, 90999-99030, 90999-99041
ConditionNew
item #1004LDYV
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A-Premium®Part # APSPW040
5 Pcs Spark Plug Wire Set for Dodge Omni 1978 Plymouth Toyota Pickup Celica 71-74
4.660 Reviews
$31.99
Low stock: Only 2 left
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3-year warranty
90 days free return
Fits 1980 - 1984 Renault LeCar, 1978 - 1981 Fiat Brava, 1978 - 1978 Dodge Omni, 1978 - 1978 Plymouth Horizon, 1977 - 1979 Renault LeCar, 1976 - 1976 Renault R5, 1975 - 1979 MG Midget, 1973 - 1980 Triumph Spitfire, 1972 - 1974 Toyota Celica, 1972 - 1974 Toyota Corona, 1972 - 1974 Toyota Pickup, 1971 - 1972 Triumph Spitfire, 1971 - 1971 Toyota Celica, 1969 - 1972 Renault R16, 1969 - 1971 Toyota Pickup, 1968 - 1971 Renault R10, 1967 - 1974 MG Midget, 1967 - 1971 Toyota Corona, 1963 - 1968 MG MGB, 1963 - 1966 MG Midget
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Vehicle: Renault
Item LocatedUnited States
Quantity5
Part interchange
671-4114, 4094 031, 7700 551 047, 7700 641 947, 7700 670 653
ConditionNew
item #1004LLRZ
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Walker ProductsPart # 924-1041
Walker Products 924-1041 Spark Plug Wire Set
4.73 Reviews
$39.99
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3-year warranty
90 days free return
Fits 1985-1986 Renault Encore, 1985-1985 Renault Fuego, 1984-1987 Renault Alliance, 1984-1984 Renault Encore, 1984-1984 Renault Fuego, 1984-1984 Renault R18i, 1983-1983 Renault Alliance, 1979-1981 Nissan 310, 1976-1978 Nissan F10, 1972-1979 Renault R17, 1972-1977 Renault R12, 1972-1976 Renault R15, 1971-1971 Renault R12
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Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1041, NE65, 4610, 9193, 138, 149, 29461, L-5370,
...View moreitem #1001PQ3X
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Walker ProductsPart # 924-1550
Walker Products 924-1550 Spark Plug Wire Set
4.73 Reviews
$42.99
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3-year warranty
90 days free return
Fits 2010-2010 Chrysler PT Cruiser, 2009-2009 Chrysler PT Cruiser, 2008-2009 Chrysler PT Cruiser, 2008-2008 Chrysler PT Cruiser, 2008-2008 Mini Cooper, 2007-2007 Chrysler PT Cruiser, 2007-2007 Mini Cooper, 2006-2006 Chrysler PT Cruiser, 2006-2006 Chrysler PT Cruiser, 2006-2006 Chrysler PT Cruiser, 2006-2006 Chrysler Sebring, 2006-2006 Dodge Viper, 2005-2008 Chrysler PT Cruiser, 2005-2006 Mini Cooper, 2005-2005 Dodge Viper, 2004-2009 Chrysler PT Cruiser, 2004-2008 Chrysler PT Cruiser, 2004-2006 Dodge Ram 1500, 2004-2005 Chrysler Sebring, 2004-2004 Chrysler PT Cruiser
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Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1550
item #1001PRLU
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DensoPart # 671-4114
Spark Plug Wire Set - Denso 671-4114
51 Reviews
$39.99
Low stock: Only 4 left
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3-year warranty
90 days free return
Fits 1984-1984 Renault LeCar, 1978-1981 Fiat Brava, 1978-1978 Dodge Omni, 1978-1978 Plymouth Horizon, 1977-1983 Renault LeCar, 1976-1976 Renault R5, 1975-1980 Triumph Spitfire, 1974-1974 Triumph Spitfire, 1973-1974 Triumph Spitfire, 1972-1974 Toyota Corona, 1972-1974 Toyota Pickup, 1972-1972 Toyota Corona, 1971-1974 Toyota Celica, 1971-1972 Triumph Spitfire, 1971-1971 Toyota Corona, 1969-1972 Renault R16, 1969-1971 Toyota Corona, 1969-1971 Toyota Pickup, 1968-1971 Renault R10, 1967-1971 Toyota Corona
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Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
671-4114, 35-4052, 6714114, 924M, 2X1037, QW640, 144036, 96921,
...View moreitem #1002HX03
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Walker ProductsPart # 924-1074
Walker Products 924-1074 Spark Plug Wire Set
4.73 Reviews
$37.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1986-1986 Renault R5, 1983-1987 Mazda 626, 1977-1985 Renault LeCar, 1976-1976 Renault R5, 1975-1978 Toyota Celica, 1969-1972 Renault R16, 1968-1971 Renault R10, 1967-1967 Renault R10
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1074, 35-4244, 35-4012, 8146, TX89, 4745, 9212, 206,
...View moreitem #1001PQQX
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Walker ProductsPart # 924-1035
Walker Products 924-1035 Spark Plug Wire Set
4.73 Reviews
$36.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1985-1986 Renault R18i, 1984-1984 Renault Fuego, 1982-1983 Renault Fuego, 1981-1983 Renault R18i, 1981-1981 Renault R18
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1035, 9720, 7472, 9176, 4471, 9194, CH74135, 700190,
...View moreitem #1001PR0Q
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Walker ProductsPart # 924-1173
Walker Products 924-1173 Spark Plug Wire Set
4.73 Reviews
$34.99
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3-year warranty
90 days free return
Fits 1987-1987 Renault Alliance, 1987-1987 Renault Alliance, 1986-1986 Renault Alliance, 1986-1986 Renault Encore, 1985-1986 Renault Alliance, 1985-1986 Renault Alliance, 1985-1986 Renault Encore, 1985-1986 Renault Encore, 1985-1986 Renault Encore, 1985-1985 Renault Alliance
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
924-1173, 35-4027, 4304, 9092, 148, 2425, 3114, OES185,
...View moreitem #1001PT5C
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SOLD
OUTDensoPart # 671-4012
Spark Plug Wire Set - Denso 671-4012
51 Reviews
$46.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1986-1986 Renault R5, 1985-1985 Renault LeCar, 1984-1984 Renault LeCar, 1983-1985 Mazda 626, 1975-1978 Toyota Celica, 1975-1978 Toyota Pickup
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Renault
Item LocatedUnited States
QuantityOne Set
Part interchange
671-4012, 35-4012, 6714012, TX89, 914G, 2X1336, QW637, 104012,
...View moreitem #1002HVDZ
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What are spark plug wires?
Spark plug wires, also known as ignition cables or spark plug leads, are a set of wires that connect the ignition coil or distributor to the spark plugs in an internal combustion engine. They are responsible for transmitting high-voltage electrical energy from the ignition source to the spark plugs, which ignite the fuel-air mixture in the engine's cylinders.
The spark plug wires typically consist of a central core made of conductive materials such as copper, and an insulating layer made of materials like silicone or rubber to prevent electrical current from leaking. The wires are designed to withstand high temperatures and electrical interference and are often color-coded to ensure correct installation.
Signs of bad spark plug wires
Spark plug wires play a crucial role in ensuring reliable engine performance. Worn or damaged spark plug wires can cause misfires, rough idling, and poor fuel efficiency, so it's important to take regular maintenance and replace them as needed.
Engine knocking
When the spark plug wires fail, the engine may produce a knocking sound, particularly under heavy loads. This can be caused by pre-ignition or detonation, which can occur when the spark plug wires are not delivering enough energy to the spark plugs.
Rough shifting (automatic transmission)
In some cases, a damaged spark plug wire can cause rough shifting in an automatic transmission. This can be due to a drop in engine power caused by misfires or other problems related to the spark plug wires.
Burned spark plug wires
If you notice that your spark plug wires are discolored or burned, this can be a sign that they are not functioning properly. Burned spark plug wires can be caused by excessive heat, electrical interference, or other issues.
Poor acceleration
When the spark plug wires are failing, the engine may have trouble accelerating smoothly. This can be due to misfires or other problems related to the spark plug wires.
Stalling
A damaged spark plug wire can cause the engine to stall or cut out, particularly at idle. This can be due to a drop in engine power caused by misfires or other problems related to the spark plug wires.
How to change spark plug wires?
Replacing a spark plug wire set is a relatively simple task, and can usually be completed in under an hour. You can follow these steps:
1. Remove the worn or faulty spark wire set.
To avoid confusion and prevent accidentally switching the wires, it is recommended to replace each spark plug wire individually, starting with the longest one. When removing the wires from either the spark plug or distributor cap, it is important to loosen the connection by twisting or rotating the boot. Yanking or forcefully pulling on the wires may cause them to break. Only pull on the boot and refrain from pulling on the cable.
2. Install the new spark plug wire set
Install the new spark plug wires in the same location as the old wires, making sure to connect each wire to the correct spark plug. If your new spark plug wires have boots, be sure to push the boot firmly onto the spark plug until it clicks into place.
3. Test the new spark plug wires
Once you have installed the new spark plug wires, start the engine and check for any signs of misfires, rough idling, or other problems that could indicate an issue with the spark plug wires. If everything looks good, you're all set!