What are the steps and tools necessary for replacing spark plugs on Mazda 3?

The spark plugs are found at the center of the valve cover(s) and a replacement kit normally has a spark plug socket that connects to a ratchet, a range of extensions, and a gap gauge to determine and adjust the gaps in the new spark plugs. Though it is optional, a torque wrench is suggested in order to tighten the plugs accordingly. Purchasing new spark plugs beforehand and setting them to the proper gap is also recommended and changing them one at a time, not all at once, and being sure that the right type is of the right kind, not of the wrong type. You should not strip the plugs out until the engine is completely cool, otherwise you may tend to break the aluminum cylinder heads, and in the mean time, you must examine the new plugs and clean up the alignment of the openings. A proper-thickness gauge between the electrodes at the tip of the plug can be used to check the gap and a wire-type gauge is suggested in case of platinum or iridium plugs. The upper engine cover is held on by rubber grommets that should be pulled up at both ends to remove them off the mounting posts. Removal of the individual ignition coils first is necessary to access the spark plugs; this means that one has to disconnect the electrical connector and remove the coil fastening insertion and then pull the coil directly upwards. When it is available, it is possible to put clear any dirt or debris in the spark plug hole with the help of compressed air to avoid contamination when removing a plug. In order to change the spark plug, the socket of the spark plug should be placed over the spark plug and then turn in an anti-clockwise direction with the ratchet and extension. Regardless of the option to substitute or re-use the old plugs, check them to determine the state of the engine. Before attaching a new spark plug, a small portion of anti-seize compound is first applied on the threads of the spark plug then the new plug should be threaded into the fuel spray until it is no longer rotatable, then screwed on with a torque wrench or ratchet. A short piece of rubber hose on the end of the plug may also be used to thread the plug into its place without damaging the threads. Also repeat the same process with the other spark plugs.

How are spark plugs, and what tools and precautions are necessary for the process on Mazda 6?

The spark plugs are located in the middle of the value cover(s) and while accessing the rear cylinder bank spark plugs on V6 models, the upper intake manifold has to be removed. The equipment that is usually needed to replace the spark plugs are a spark plug socket that fits a ratchet, some extensions, and a gap gauge to check the gap of the new plugs and tighten them with a torque wrench. Purchase new plugs would be a good idea in advance, accordingly fix them to fit the right gap, and change one of them at a time, and be certain that one gets the right type of plug to fit that particular engine. It is essential to give the engine time to cool down before loosening any plugs so as not to damage the aluminum cylinder heads and in the meantime, check the new plugs and close the gaps. This is checked between the electrodes on the tip of the plug with a proper-thickness gauge, where the curved electrode is slid with a slight drag, and, should it be necessary, the curved side electrode may be bent slightly. They all have individual ignition coils which have to be dismantled to reach the spark plugs. In case of any compressed air, then it can be sprayed into the spark plug hole to clear any dirt or debris to avoid contamination during the procedure. The spark plug can be removed by placing the socket on top of it and twisting it counterclockwise. The threads of the new spark plug should have a small portion of anti-seize compound applied to them then it should be installed by hand until it can no longer turn and then tightened with a torque wrench or ratchet. Installation could be easier with a small piece of rubber hose over the end of the plug to prevent cross-threading. This process must be followed on the rest of the spark plugs.

Genuine Mazda Spark Plug

Ignition Spark Plug

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

21 Spark Plugs found

View related parts
Mazda Spark Plug Part Number: AJTT-18-110
$4.65 MSRP: $6.20
You Save: $1.55 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Cp=12
- Replaces: AJ57-18-110, AJH3-18-110, AJ57-18-110A
Fits the following Mazda Models:
- 6 | 2007-2008 | S | 6 Cyl 3.0 L GAS
View related parts
Mazda Spark Plug Part Number: GY01-18-110
$4.84 MSRP: $6.45
You Save: $1.61 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
- Replaces: GY02-18-110, ZZM3-18-110A, ZZM6-18-110, ZZM3-18-110B, ZZM3-18-110C, ZZM3-18-110
Fits the following Mazda Models:
- 6 | 2003-2006 | S | 6 Cyl 3.0 L GAS
- B2500 | 1998-2001 | SE, SX, Troy Lee | 4 Cyl 2.5 L GAS
- B3000 | 1998-2007 | Base, DS, SE, SX, Troy Lee | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- MPV | 2000-2006 | DX, ES, LX, LX-SV | 6 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS
- Tribute | 2008 | S | 6 Cyl 3.0 L GAS
View More
View related parts
Mazda Spark Plug Part Number: 1F20-18-110D
$8.28 MSRP: $11.03
You Save: $2.75 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 1F20-18-110C
Fits the following Mazda Models:
- B2300 | 2001-2009 | Base, SE, SX | 4 Cyl 2.3 L GAS
View related parts
Mazda Spark Plug Part Number: LFJD-18-110-9U
$18.35 MSRP: $24.48
You Save: $6.13 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Cp=12
- Replaces: 0000-18-L3Y2, L3Y2-18-110, LFJD-18-110, LFG1-18-110
Fits the following Mazda Models:
- 3 | 2007-2013 | i, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 5 | 2012-2015, 2008-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2006-2013 | i | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- CX-7 | 2010-2012 | Sport, SV, Touring | 4 Cyl 2.5 L GAS
- Tribute | 2009-2011 | Hybrid, i | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
View More
View related parts
Mazda Spark Plug Part Number: 0000-18-L3Y3
$19.51 MSRP: $26.02
You Save: $6.51 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Cp=12
- Replaces: L3Y3-18-110, L3K9-18-110, L3K9-18-110A
Fits the following Mazda Models:
- 3 | 2007-2009 | Mazdaspeed | 4 Cyl 2.3 L GAS
- 6 | 2006-2007 | Mazdaspeed | 4 Cyl 2.3 L GAS
View related parts
Mazda Spark Plug Part Number: PY8V-18-110
$31.36 MSRP: $41.83
You Save: $10.47 (26%)
Ships in 1-2 Business Days
ADD TO CART
Fits the following Mazda Models:
- 6 | 2018-2021 | Carbon Edition, Grand Touring, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
- CX-30 | 2021-2023 | 2.5 Turbo | 4 Cyl 2.5 L GAS
- CX-5 | 2019-2024 | 2.5 Turbo, 2.5 Turbo Signature, Carbon Edition Turbo, Grand Touring Reserve, Signature | 4 Cyl 2.5 L GAS
- CX-50 | 2023-2024 | 2.5 Turbo | 4 Cyl 2.5 L GAS
- CX-9 | 2016-2023 | Carbon Edition, Grand Touring, Signature, Sport, Touring, Touring Plus | 4 Cyl 2.5 L GAS
View More
View related parts
Mazda Spark Plug Part Number: P5SP-18-110
$29.61 MSRP: $39.48
You Save: $9.87 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark; Spark Plug
Fits the following Mazda Models:
- CX-30 | 2023 | 2.5 S, 2.5 S Carbon Edition | 4 Cyl 2.5 L GAS
View related parts
Mazda Spark Plug Part Number: 1F72-18-110
$2.33 MSRP: $3.10
You Save: $0.77 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
Fits the following Mazda Models:
- B4000 | 2003-2009 | Base, DS, SE | 6 Cyl 4.0 L GAS
View related parts
Mazda Spark Plug Part Number: 1F22-18-110
$7.61 MSRP: $10.15
You Save: $2.54 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 1F22-18-110A
Fits the following Mazda Models:
- B4000 | 2001-2002 | Base, DS, SE | 6 Cyl 4.0 L GAS
View related parts
Mazda Spark Plug Part Number: L845-18-110
$15.08 MSRP: $20.10
You Save: $5.02 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Cp=12
- Replaces: L303-18-110, ZZC0-18-110, L813-18-110, L341-18-110
Fits the following Mazda Models:
- 3 | 2004-2006 | i, S, SP23 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 5 | 2006-2007 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
- 6 | 2003-2005 | i | 4 Cyl 2.3 L GAS
- Tribute | 2008 | Hybrid, i | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS
View More
View related parts
Mazda Spark Plug Part Number: LFJR-18-110
$17.65 MSRP: $23.53
You Save: $5.88 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
Fits the following Mazda Models:
- MX-5 Miata | 2012-2015 | 25th Anniversary Edition, Club, Grand Touring, Special Edition, Sport, Touring | 4 Cyl 2.0 L GAS
View related parts
Mazda Spark Plug Part Number: L3YD-18-110
$19.93 MSRP: $26.56
You Save: $6.63 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
- Replaces: L3BD-18-110
Fits the following Mazda Models:
- 3 | 2010-2013 | Mazdaspeed | 4 Cyl 2.3 L GAS
- CX-7 | 2007-2012 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
View related parts
Mazda Spark Plug Part Number: LFJR-18-110-9U
$22.76 MSRP: $30.36
You Save: $7.60 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Cp=12
- Replaces: 0000-18-L3Y1, L3Y1-18-110, L3G2-18-110
Fits the following Mazda Models:
- MX-5 Miata | 2006-2012 | Base, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
View related parts
Mazda Spark Plug Part Number: PE5R-18-110A
$32.49 MSRP: $43.32
You Save: $10.83 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Plug, Spark; Spark Plug
- Replaces: PE01-18-110A, PE01-18-110, PE5S-18-110, P51R-18-110, PE02-18-110, PE20-18-110, PE21-18-110, PE5R-18-110
Fits the following Mazda Models:
- 3 | 2012-2024 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Grand Touring, i, i Grand Touring, I Sport, i SV, I Touring, Mazdaspeed, Preferred, Premium, S, s Grand Touring, s Touring, Select, Select Sport, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
- 6 | 2014-2021 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- CX-3 | 2016-2021 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- CX-30 | 2020-2022 | 2.5 S, 2.5 S Carbon Edition, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-5 | 2013-2024 | 2.5 S, 2.5 S Carbon Edition, Carbon Edition, Grand Select, Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
- CX-50 | 2023-2024 | 2.5 S | 4 Cyl 2.5 L GAS
- MX-5 Miata | 2016-2023 | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
View More
View related parts
Mazda Spark Plug Part Number: N3Y1-18-110A-9U
$47.74 MSRP: $63.67
You Save: $15.93 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: N3Y1-18-110A
Fits the following Mazda Models:
- RX-8 | 2009-2011 | Grand Touring, R3, Sport, Touring | 2 Cyl 1.3 L GAS
View related parts
Mazda Spark Plug Part Number: N3Y9-18-110A-9U
$53.53 MSRP: $71.37
You Save: $17.84 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 0000-18-N3Y9, 0000-18-N3Y3, N3Y9-18-110, N3Y3-18-110, N3Y9-18-110A
Fits the following Mazda Models:
- RX-8 | 2009-2011 | Grand Touring, R3, Sport, Touring | 2 Cyl 1.3 L GAS
View related parts
Mazda Spark Plug Part Number: N3Y8-18-110A-9U
$70.43 MSRP: $93.92
You Save: $23.49 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 0000-18-N3Y8, 0000-18-N3Y2, N3Y8-18-110A, N3H2-18-110A, N3Y8-18-110, N3H4-18-110, N3Z4-18-110, N3Y2-18-110
Fits the following Mazda Models:
- RX-8 | 2009-2011 | Grand Touring, R3, Sport, Touring | 2 Cyl 1.3 L GAS
View related parts
Mazda Spark Plug Part Number: Z6B7-18-110
$35.23 MSRP: $46.97
You Save: $11.74 (25%)
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
- Replaces: ZJY6-18-110, ZJ46-18-110
Fits the following Mazda Models:
- 2 | 2011-2014 | Sport, Touring | 4 Cyl 1.5 L GAS
View related parts
Mazda Spark Plug Part Number: ZZC4-18-110B
$4.03 MSRP: $5.36
You Save: $1.33 (25%)
ADD TO CART
Product Specifications
- Replaces: ZZC4-18-110A, ZZC4-18-110
Fits the following Mazda Models:
- Tribute | 2009-2011 | S | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
View related parts
Mazda Spark Plug Part Number: ZZJ1-18-110
$11.03 MSRP: $14.70
You Save: $3.67 (25%)
ADD TO CART
Product Specifications
- Other Name: Plug, Spark
- Replaces: CY02-18-110, CY01-18-110
Fits the following Mazda Models:
- 6 | 2009-2013 | S | 6 Cyl 3.7 L GAS
- CX-9 | 2007-2015 | Grand Touring, Sport, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS

| Page 1 of 2 |Next >

1-20 of 21 Results

Mazda Spark Plug

Mazda Spark Plug ignites the exact air fuel mix instantly to provide every engine in the Mazda lineup with quick starts and a lively throttle response. Mazda makes its name on Skyactiv technology that extracts more power from every drop of fuel, a Kodo styling language that looks poised to pounce, and i-Activsense capabilities that watch the road for danger as drivers enjoy sharp steering feel. The brand also experiments with electric drive and mild hybrids, proving that Mazda never stops perfecting efficiency and excitement. Rugged testing of i-Activ AWD keeps confidence high when roads become slick, and a long history of rotary innovation makes this company a master of daring engineering. Just as the cars are working for balance, so the Spark Plug is trying to do inside each cylinder. A ceramic insulator protects the plug from heat and pressure, a threaded case locks the plug in place, and the tiny gap between electrodes allows a lightning-like pulse to jump dozens of times every second, setting combustion in motion. Consistent voltage delivery ensures smoother idling and stronger acceleration, and cleaner emissions in all Mazda models. When wear or deposits dull the arc, fitting a fresh Spark Plug restores crisp performance, making it an affordable key to keeping every Mazda ready for the next spirited drive.

You'll get great performance and real durability when you pick genuine OEM Spark Plug. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda Spark Plug Parts and Q&A

Spark Plug
0000-18-L3Y3
Q: What are the steps and tools necessary for replacing spark plugs on Mazda 3?
A:
The spark plugs are found at the center of the valve cover(s) and a replacement kit normally has a spark plug socket that connects to a ratchet, a range of extensions, and a gap gauge to determine and adjust the gaps in the new spark plugs. Though it is optional, a torque wrench is suggested in order to tighten the plugs accordingly. Purchasing new spark plugs beforehand and setting them to the proper gap is also recommended and changing them one at a time, not all at once, and being sure that the right type is of the right kind, not of the wrong type. You should not strip the plugs out until the engine is completely cool, otherwise you may tend to break the aluminum cylinder heads, and in the mean time, you must examine the new plugs and clean up the alignment of the openings. A proper-thickness gauge between the electrodes at the tip of the plug can be used to check the gap and a wire-type gauge is suggested in case of platinum or iridium plugs. The upper engine cover is held on by rubber grommets that should be pulled up at both ends to remove them off the mounting posts. Removal of the individual ignition coils first is necessary to access the spark plugs; this means that one has to disconnect the electrical connector and remove the coil fastening insertion and then pull the coil directly upwards. When it is available, it is possible to put clear any dirt or debris in the spark plug hole with the help of compressed air to avoid contamination when removing a plug. In order to change the spark plug, the socket of the spark plug should be placed over the spark plug and then turn in an anti-clockwise direction with the ratchet and extension. Regardless of the option to substitute or re-use the old plugs, check them to determine the state of the engine. Before attaching a new spark plug, a small portion of anti-seize compound is first applied on the threads of the spark plug then the new plug should be threaded into the fuel spray until it is no longer rotatable, then screwed on with a torque wrench or ratchet. A short piece of rubber hose on the end of the plug may also be used to thread the plug into its place without damaging the threads. Also repeat the same process with the other spark plugs.
Spark Plug
GY01-18-110
Q: How are spark plugs, and what tools and precautions are necessary for the process on Mazda 6?
A:
The spark plugs are located in the middle of the value cover(s) and while accessing the rear cylinder bank spark plugs on V6 models, the upper intake manifold has to be removed. The equipment that is usually needed to replace the spark plugs are a spark plug socket that fits a ratchet, some extensions, and a gap gauge to check the gap of the new plugs and tighten them with a torque wrench. Purchase new plugs would be a good idea in advance, accordingly fix them to fit the right gap, and change one of them at a time, and be certain that one gets the right type of plug to fit that particular engine. It is essential to give the engine time to cool down before loosening any plugs so as not to damage the aluminum cylinder heads and in the meantime, check the new plugs and close the gaps. This is checked between the electrodes on the tip of the plug with a proper-thickness gauge, where the curved electrode is slid with a slight drag, and, should it be necessary, the curved side electrode may be bent slightly. They all have individual ignition coils which have to be dismantled to reach the spark plugs. In case of any compressed air, then it can be sprayed into the spark plug hole to clear any dirt or debris to avoid contamination during the procedure. The spark plug can be removed by placing the socket on top of it and twisting it counterclockwise. The threads of the new spark plug should have a small portion of anti-seize compound applied to them then it should be installed by hand until it can no longer turn and then tightened with a torque wrench or ratchet. Installation could be easier with a small piece of rubber hose over the end of the plug to prevent cross-threading. This process must be followed on the rest of the spark plugs.