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BMW 525i Spark Plug

We have 7 Items In-stock. Select a year to continue.
$9.95 List Price $20.43 Save $10.48 Availability: In Stock
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NGK
NGK manufactures and supplies automotive manufacturers with OE and high performance spark plugs and ignition control products.

BKR6EQUP NGK
  • SKU#: W0133-1634282
  • Brand: NGK
  • Fit Note: NGK BKR6EQUP : High Power
  • Anticipated Ship Out Time: Same day - 1 business day
  • Notes: Ships to U.S. addresses only. Cannot be shipped internationally.
 
Fits the following BMW 525i Years:
  • 2001-2005 | All Engines | All Submodels
Rating: (see review/s)

"these plugs work great as of 20K miles the car runs well and notice no lack of power." posted by: JT on January 30, 2012

"Replaced the NGK's in my 740i with Bosch plugs and that was a mistake. I had 133,000 on the NGK's and they never missed a beat. I did not know what brand was in my engine so i bought Bosch. Performance is down and horsepower is less. I use to race back in the 60's and used NGK's and they were great. Nuff said." posted by: on February 22, 2010 view all 8 reviews

$5.60 List Price $6.61 Save $1.01 Availability: In Stock
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Denso Platinum TT OE Replacement Spark Plug

Denso is the world's leading provider of high quality automotive merchandises which are engineered from the modernized facilities and equipments. Denso's proficiencies with their products are better than rivals as they initially built them along with their strict and valued standards.

Denso Platinum Twin Tip Spark Plugs features revolutionary twin tip design that provides better ignitability for a more powerful and fuel-efficient combustion yielding better engine performance in terms of power and fuel economy.

Features:

  • Improves mileage and reduces carbon emissions
  • Provides additional power and quicker starts

Item Details:

  • .63 in. hex size
  • Platinum alloy 1.1 mm fine wire center electrode
  • Titanium enhanced 1.5 mm fine wire ground electrode
  • Gasket seat style
  • Solid terminal nut
  • SKU#: NPPK20TT
  • Brand: Denso
  • Plug Type: Resistor
  • Electrode Core Material: Platinum
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Gap Size: 1.1 mm
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Fits the following BMW 525i Years:
  • 2001-2005 | 6 Cyl 2.5L | Base
  • 1991-1995 | 6 Cyl 2.5L | Base
$6.04 List Price $7.13 Save $1.09 Availability: In Stock
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BOSCH PREMIUM CLASS PLATINUM+4 SPARK PLUG

Bosch Premium Class Platinum+4 Spark Plug contains the most platinum in the Bosch Platinum Plug Series and has a unique firing technology that combines the advantages of surface air gap technology and 4 yttrium enhanced ground electrodes.

Specifications:
  • 14 mm thread size
  • 19 mm reach
  • 16 mm hex size
  • 1.6 mm gap
  • Platinum plug
  • Gasket seat style
  • Interference suppression resistor
  • Surface air gap plug
  • Heat fused platinum center electrode
  • 4 ground electrodes
  • Solid terminal nut
  • Heat range 7

Features:
  • Reduces the voltage necessary to jump the gap as well as quenching
  • Provides multiple radial spark paths and surface air gap design that creates optimal exposure of the air/fuel mixture to the enhanced ignition spark
  • Yttrium-enhancement of the ground electrodes further extend plug life
  • Designed to reach self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency
  • SKU#: BS4417
  • Brand: Bosch
  • Plug Type: Resistor
  • Electrode Core Material: Platinum
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Gap Size: 1.6 mm
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Fits the following BMW 525i Years:
  • 1993-2005 | 6 Cyl 2.5L | Base
Rating: (see review/s)

"Excellent Quality Sparki Plugs. Previously, someone had installed inferior Quality Spark Plugs in the Vehicle and they affected Performance. Installation needs to be carefully...Engine Cover has to be removed, Electrodes have to be extracted (affixed with Screws), Spark Plugs are set very deep inside of the Engine. There is also a Ground Connector that should be disconnected and reinstalled carefully. Spark Plugs do not need to be gapped. One must take the Time and Patience to put them in correctly or entrust someone who is both knowledgeable a Patient in order to do the Operation. The Spark Plugs are giving an excellent Performance since they have been installed." posted by: Vitznau on September 29, 2014

$8.27 List Price $9.76 Save $1.49 Availability: In Stock
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AC DELCO PROFESSIONAL PLATINUM SPARK PLUG, SOLD INDIVIDUALLY

AC Delco Professional Platinum Spark Plugs are perfect for engines that run on conventional plugs, and newer engines that require platinum plugs. Provides up to 100,000 miles of service before requiring replacement.

Features:
  • Constructed from top quality materials to help the engine run clean and longer
  • Copper core center electrode for improved heat transfer to the tip
  • Engineered to high standards and tested under extreme conditions to exceed OE specifications


  • SKU#: AC41835
  • Brand: AC Delco
  • Plug Type: Resistor
  • Electrode Core Material: Platinum
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Warranty: 100,000-mile AC Delco limited warranty
 
Fits the following BMW 525i Years:
  • 2006-2007 | 6 Cyl 3.0L | Base
$7.52 List Price $8.87 Save $1.35 Availability: In Stock
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MOTORCRAFT SUPPRESSOR SPARK PLUG, FINEWIRE PLATINUM, SOLD INDIVIDUALLY

0.04 in. gap size, alternative plug; Delivers maximum voltage to the spark plug while maximizing performance and increases engine life; Resists corrosion and abrasion; Reduces the chance of misfire.


  • SKU#: MISP497
  • Brand: Motorcraft
  • Plug Type: Resistor
  • Electrode Core Material: Copper
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Warranty: 1 year or 12,000-mile Motorcraft limited warranty
 
Fits the following BMW 525i Years:
  • 1991-1995 | 6 Cyl 2.5L | Base
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$4.96 List Price $5.85 Save $0.89 Availability: In Stock
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CHAMPION SINGLE PLATINUM POWER PLUG, SOLD INDIVIDUALLY

Champion Single Platinum Power Plugs reduce and maintain gap growth and proper gap. The voltage needed to fire them remains consistent, reducing the chance of misfire.

Specifications:
  • 14 mm thread diameter
  • Gasket seat

Features:
  • Center and side electrodes are tapered for performance while platinum tip on center electrode guarantees extended plug life


  • SKU#: C333318
  • Brand: Champion
  • Plug Type: Non-Resistor
  • Electrode Core Material: Copper
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Platinum
  • Reach: 14 mm
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Fits the following BMW 525i Years:
  • 2001-2005 | 6 Cyl 2.5L | Base
$5.95 List Price $8.99 Save $3.04 Availability: In Stock
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E3 DIAMONDFIRE SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread size, 19 mm reach, 0.62 in. hex size, gasket seat, resistor, 1.016 mm non-adjustable gap size, copper core electrode material, nickel alloy electrode tip material, projected insulator type; Guaranteed to provide more power while using less fuel, quicker starts and less fouling than competitive standard spark plugs.
  • SKU#: PYRE348
  • Brand: E3
  • Plug Type: Resistor
  • Electrode Core Material: Copper
  • Product Class: Fuel Saver
  • Anticipated Ship Out Time: Same day - 1 business day
  • Electrode Tip Material: Nickel alloy
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Fits the following BMW 525i Years:
  • 2001-2005 | 6 Cyl 2.5L | Base
Rating: (see review/s)

"I put these in my Vtwin motorcycle in November. In March the bike quit running. Took it to a dealer and all he had to do to get it running was put normal plugs in it. Hope nothing permanently damaged. Told a friend about it after the fact and he described the same trouble with his Chevy truck. His mechanic said they burn extra hot and mess up the computer sensors." posted by: GOC Sensei on March 12, 2014

"I replaced my 10 year old ----- Platinum +4 spark plugs which I was still getting 38 MPG highway with over 225k miles. After replacing with E3, my MPG fell to 32 MPG highway. Disappointed to say the least. I'm returning and going back to a new set of +4's." posted by: MJ on December 19, 2011 view all 8 reviews

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