Best Spark Plugs For Bmw 325i: image
Editor's Pick

  • Brand:NGK
  • Core Material:Copper
  • Top Material Type:Nickel

Best Value

  • Brand:Denso
  • Core Material:Iridium
  • Vehicle Service Type:The patented DENSO Iridium Power Spark Plug is designed to deliver unsurpassed performance and increase overall power and acceleration. Employing a revolutionary new 360-degree laser-welding process, DENSO has created a spark plug unlike anything on the market today. For that extra burst of power when you need it most, you can count on DENSO to harness the power of iridium to dramatically increase firing performance. The result is maximum horsepower and torque. With this in mind, if your vehicle exhibits bad spark plug symptoms including slow acceleration, poor fuel economy, or engine misfires, consider DENSO for your performance spark plug replacement. Trust in the iridium-spark-plug pioneer to provide performance spark plugs that showcase unmatched functionality, reliability, and fitment. From extreme race conditions to the daily driver, the DENSO Iridium Power Spark Plug is the ultimate performance spark plug.The patented DENSO Iridium Power Spark Plug is designed to deliver unsurpassed performance and increase overall power… See more

Most Discussed

  • Brand:Bosch Automotive
  • Core Material:Copper
  • Top Material Type:Nickel

Best Spark Plugs For Bmw 325i

Top 10 Best Spark Plugs For Bmw 325i

1

4 PCS *NEW* — Denso # 5304 IRIDIUM Power Spark Plugs IK20

767 ratings | 20 offers | 767 Reviews
Price: $23.91$35.98
Why we chose it
  • Iridium Power
  • 1order 4 Pieces
  • FREE SHIPPING For This Item
  • Spark Plug #5304
4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20: image
92%
customers recommend this product
4.6/ 5
2

Denso (5344) IKH20 Iridium Power Spark Plug, (Pack of 1)

277 ratings | 12 offers | 277 Reviews
Price: $8.23$14.21
Why we chose it
  • Package Dimensions: 2.286 L x 8.382 H x 2.54 W (centimeters)
  • Its 360 degree laser welding process: ensuring exceptional quality bond and structural strength with the iridium center electrode
  • U-groove and taper cut ground electrode: provides faster spark flame growth and lessens heat quenching
  • 0.4 mm iridium center electrode: world’s smallest diameter that maximizes firing potential
Denso (5344) IKH20 Iridium Power Spark Plug, (Pack of 1): image
92%
customers recommend this product
4.6/ 5
Longevity3.9
Value for money3.8
Mileage3.8
3

Autolite 3924-4PK Copper Resistor Spark Plug, Pack of 4

270 ratings | 14 offers | 270 Reviews
Price: $9.65$19.57
Why we chose it
  • Full copper core electrode provides better performance in all conditions
  • Multi-rib insulator reduces danger of “flash-over”
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
  • Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
Autolite 3924-4PK Copper Resistor Spark Plug, Pack of 4: image
94%
customers recommend this product
4.7/ 5
Top Pick
4

NGK (6962) Spark Plug – BKR6E, One Size

800 ratings | 25 offers | 800 Reviews
Price: $2.3$15.43
Why we chose it
  • Country Of Origin: Japan
  • Package Dimensions: 1.524 cms (L) x 2.286 cms (W) x 8.128 cms (H)
  • Package Quantity: 1
  • Product Type: Spark Plug
NGK (6962) Spark Plug - BKR6E, One Size: image
94%
customers recommend this product
4.7/ 5
5

Bosch 7404 Copper with Nickel Spark Plug (Pack of 1)

9 ratings | 5 offers | 9 Reviews
Price: $3.54$8.55
Why we chose it
  • Bosch Copper with Nickel spark plugs feature a heavy-duty yttrium-enhanced copper core center electrode for improved durability
  • Heavy-duty, yttrium enhanced copper core center electrode for reliability and performance
  • Tapered, v-profile nickel chromium ground electrode for improved cold starts and fuel ignitability
Bosch 7404 Copper with Nickel Spark Plug (Pack of 1): image
86%
customers recommend this product
4.3/ 5
6

Denso (5063) K20TXR Traditional Spark Plug, Pack of 1

11 ratings | 18 offers | 11 Reviews
Price: $3.24$13.95
Why we chose it
  • Improved cold-starting
  • Efficient fuel consumption
  • Stable combustion during idling
  • K20TXR
  • Increases engine performance and throttle response
Denso (5063) K20TXR Traditional Spark Plug, Pack of 1: image
80%
customers recommend this product
4/ 5
7

NGK (2288) BKR6EK Standard Spark Plug, Pack of 1

110 ratings | 11 offers | 110 Reviews
Price: $5.54$9.71
Why we chose it
  • Fit Type: Vehicle Specific
  • Plug Of Choice In Millions Of Vehicles
  • You Can Depend On Ngk For Quality And Reliability
  • Consistent Performance
NGK (2288) BKR6EK Standard Spark Plug, Pack of 1: image
94%
customers recommend this product
4.7/ 5
8

Bosch 7402 Copper with Nickel Spark Plug (Pack of 1)

11,607 ratings | 7 offers | 11,607 Reviews
Price: $2.99$14.88
Why we chose it
  • High wear resistance and robustness: special ceramic material with high dielectric and mechanical strength
  • Supports an optimum engine performance: smooth engine operation and steady acceleration
  • Plugs easy to replace: factory-pre-set electrode gap, no adjustment necessary Bosch advices not to lubricate the thread. Requested tightening torque or angle see on package
  • High reliabilty: excellent cold start behaviour
Bosch 7402 Copper with Nickel Spark Plug (Pack of 1): image
92%
customers recommend this product
4.6/ 5
9

Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1)

1,270 ratings | 8 offers | 1,270 Reviews
Price: $4.48$8.99
Why we chose it
  • Improve fuel economy, better acceleration and faster starts than all other single platinum plugs
  • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
  • Twin-tip technology with 11 mm platinum center electrode and 11 mm titanium enhanced ground electrode
  • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1): image
92%
customers recommend this product
4.6/ 5
Value for money4.5
Longevity4.4
Mileage4.4
10
Why we chose it
  • Maintains stable operating temperature under all engine loads
  • Champion double platinum spark plugs utilize an exclusive heat-active alloy The dual platinum fine-wire center electrode and platinum pad electrodes provide sharper spark focus and maximize plug life
  • Double platinum conductors place platinum on both the center and ground electrodes to ensure longer plug life and minimize wear on both electrode surfaces
  • V-trimmed ground electrode promotes sharper spark focus
  • The fine-wire and V-trimmed electrode creates a sharper spark focus than a conventional spark plug
  • Platinum center and ground electrode for greater wear resistance
  • Fine-wire center electrode for greater ignitability
  • An exclusive heat-active alloy allows the electrodes to reach optimal temperature quickly and maintain stable operating temperature under all engine loads
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Champion Double Platinum Power 7436 Spark Plug (Carton of 1): image
94%
customers recommend this product
4.7/ 5
Top Pick
NGK (6962) Spark Plug - BKR6E, One Size
NGK nickel spark plugs feature a specially designed v-groove center electrode, improving ignitability and reducing quenching. The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating. Cold-rolled threads prevent cross-threading and damage to cylinder heads. Trivalent plating eliminates need for anti-seize. High-grade alumina silicate ceramic insulator.
Ranking the Brands
Denso: 40.00%
Autolite: 10.00%
NGK: 20.00%
Bosch Automotive: 20.00%
Champion: 10.00%

Comparison Table

Сomparison: 4 PCS *NEW* -- Denso # 5304 IRIDIUM Power Spark Plugs IK20: imageСomparison: Denso (5344) IKH20 Iridium Power Spark Plug, (Pack of 1): imageСomparison: Autolite 3924-4PK Copper Resistor Spark Plug, Pack of 4: imageСomparison: NGK (6962) Spark Plug - BKR6E, One Size: imageСomparison: Bosch 7404 Copper with Nickel Spark Plug (Pack of 1): imageСomparison: Denso (5063) K20TXR Traditional Spark Plug, Pack of 1: imageСomparison: NGK (2288) BKR6EK Standard Spark Plug, Pack of 1: imageСomparison: Bosch 7402 Copper with Nickel Spark Plug (Pack of 1): imageСomparison: Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1): imageСomparison: Champion Double Platinum Power 7436 Spark Plug (Carton of 1): image
4 PCS *NEW* — Denso # 5304 IRIDIUM Power Spark Plugs IK20Denso (5344) IKH20 Iridium Power Spark Plug, (Pack of 1)Autolite 3924-4PK Copper Resistor Spark Plug, Pack of 4NGK (6962) Spark Plug – BKR6E, One SizeBosch 7404 Copper with Nickel Spark Plug (Pack of 1)Denso (5063) K20TXR Traditional Spark Plug, Pack of 1NGK (2288) BKR6EK Standard Spark Plug, Pack of 1Bosch 7402 Copper with Nickel Spark Plug (Pack of 1)Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1)Champion Double Platinum Power 7436 Spark Plug (Carton of 1)
BrandDensoDensoAutoliteNGKBosch AutomotiveDensoNGKBosch AutomotiveDensoChampion
Core MaterialIridiumCopperCopperCopperCopperCopperCopper
ManufacturerDensoDensoAutoliteNGKBoschDENSOBoschDensoChampion Spark Plug
Item Weight5.6 ounces1.76 ounces1.6 ounces0.71 ounces1.6 ounces1.76 ounces1.48 ounces1.44 ounces0.8 ounces
Product Dimensions3.62 x 3.84 x 0.96 inches4 x 1 x 1 inches1 x 4 x 3.5 inches0.31 x 1.14 x 3.98 inches3.35 x 0.98 x 0.98 inches9.35 x 5.51 x 3.07 inches1.1 x 3.4 x 1.2 inches3.8 x 0.9 x 0.8 inches
Is Discontinued By ManufacturerNoNoNoNoNoNoNoNo
Country of OriginChinaMexicoJapanGermanyChinaUSA
Top Material TypeAlloy SteelNickelNickelMetalNickel

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