2003 BMW 525i Ignition and Tune-Up Products
More 2003 BMW 525i Ignition and Tune-Up Products Categories
If you’re looking for an original Ignition and Tune-Up Products replacement for a 2003 BMW 525i, you can search through our selection below. You’ll also find aftermarket and OEM Ignition and Tune-Up Products to meet your needs.
Essential 2003 BMW 525i Ignition and Tune-Up Products
Febi – Ignition Switch (Part No.M5050185933FEB)
from
$76.62
Ignition Switch
Carquest Premium – Ignition Switch (Part No.CSC1516)
from
$87.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Carquest Premium – Ignition Switch (Part No.CSA3195)
from
$196.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Carquest Premium – Ignition Switch (Part No.CSA3194)
from
$194.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
See More
Delphi – Direct Ignition Coil – (Coil on Plug) (Part No.F3005451026DEL)
from
$37.52
Delphi ignition coils feature precise spark timing response for increased fuel economy and faster crank-to-run. The ignition coils provide accurate electrical energy to create a voltage potential at the spark plug, providing for superior engine performance that adjusts to driving and environment conditions. Plus, like all Delphi ignition system components, they enable engine management systems to maintain tighter control over emissions, economy and performance.
Product Features:
See More
Product Features:
- Improved dwell accuracy decreases module and coil temperatures for greater reliability
- Noise abatement material between laminations reduces audible coil noise
- Cassettes have improved primary connector for greater ease of assembly compared to designs with one connector for each coil
- Lower primary inductance provides high-speed performance
- Early and precise electronic spark timing helps improve fuel economy and provides faster crank-to-run
- Higher energy delivered to combustible mixture provides cleaner combustion to help manufacturers meet on-board diagnostics (OBD II) requirements
- Direct connection to spark plugs (via small boot) eliminates spark plug wires
- Composite iron coils provide programmable energy
- Coil per cylinder dwell overlap electronics deliver better high speed performance and better heat dissipation compared to some conventional technologies
- Coil per cylinder ramp and fire electronics decrease power dissipation and increase efficiency
- Radio frequency interference (RFI)suppressor optional
Delphi – IGNITION COIL (Part No.GN10328)
from
$49.99
Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.
Product Features:
See More
Product Features:
- Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
- Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
- Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
- We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues
Bosch – Direct Ignition Coil – (Coil on Plug) (Part No.F3005384215BOS)
from
$51.70
High-performance ignition coils from Bosch guarantee a reliable voltage from the start, more ignition energy to ensure that your engine starts and runs smoothly. Bosch ignition systems combine the security of fully developed system engineering with the employment of the latest technology. The application of Bosch ignition coils ensures all advantages of the original equipment. Bosch Ignition coils provide more ignition energy to ensure that your engine starts well and runs smoothly. High-performance ignition coils from Bosch guarantee a reliable voltage from the start.
Product Features:
See More
Product Features:
- Demand controlled ignition voltage
- Long spark duration
- Better engine performance
- Reduced fuel consumption
- Reduced obnoxious emissions in exhaust gas
Carquest Premium – Ignition Coil (Part No.EBC1421)
from
$41.49
Carquest Premium engine management products provide the right ignition coils for a wide range of domestic and import applications. They deliver the highest performance and durability under demanding conditions. Designed to meet OE quality and performance standards using top-quality components, our ignition coils are the best choice for your maintenance and repair needs.
Product Features:
See More
Product Features:
- Coils are designed and engineered to be an OE quality replacement for fit and performance
- High-strength dielectric epoxy and 100% copper windings used to deliver high-temperature performance and vibration resistance
- High-efficiency laminations produce a high-energy spark and reliable performance
- Factories use ISO 9001 and IATF 16949 standards to deliver products designed to meet or exceed OE voltage output specifications
- Top-quality components and materials used to deliver maximum performance and long service life under tough operating conditions
Carquest Premium – Knock Sensor (Part No.SBC4019)
from
$64.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Encore Automotive – Genuine OE Ignition Knock (Detonation) Sensor (Part No.SKS-G30002)
from
$153.99
Encore Automotive Genuine OE knock sensor detects excessive/unusual pulses caused by the engine ignition and makes proper adjustments to reduce the risk of damaging pistons. Encore Automotive is dedicated to bringing the latest original equipment technologies to the Aftermarket to provide the highest overall value.
Product Features:
See More
Product Features:
- Genuine OE Part
- Highly accurate engine vibration detection
- Excellent material quality
VDO – Knock Sensor (Part No.F6020304273VDO)
from
$149.93
The VDO OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment.
Product Features:
See More
Product Features:
- OEM quality direct fit application
- Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
- Mounting hole is the same size as OE
- Maintains OE specifications for frequency response
Carquest Premium – Knock Sensor (Part No.SBC3898)
from
$212.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Carquest Premium – Knock Sensor (Part No.SBC3953)
from
$149.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
See More
Product Features:
- Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
- Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
- Designed to meet or exceed all OEM specifications in fit, form & function
- Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
Suncore – Air Bag (Part No.254BW-15-RL)
from
$94.99
Air Bag
Suncore – SuspAirBag/Bellows (Part No.255BW-15-RR)
from
$94.99
SuspAirBag/Bellows
Idemitsu – Power Steering Fluid – 12 oz (Part No.30102-052A)
from
$6.29
IDEMITSU Premium PSF is specifically engineered to meet the demanding performance requirements of Honda and Acura power steering units. This advanced technology fluid is formulated with premium quality base oils and the latest additive technologies to provide outstanding protection and performance under the most servere environmental and driving conditions.IDEMITSU Premium PSF can also be used in most Asian Original Equipment Manufacturer (OEM) power steering units that do not utilize electronic power steering technology.
Product Features:
See More
Product Features:
- Unique friction technology provides efficient and noise-free operation
- Advanced formulation technology provides outstanding protection to the entire power steering system while delivering smooth performance under the most severe operating conditions
- Superior low temperature performance for easy flow and protection against cavitation and elimination of “squawking” and “squealing”
- Excellent compatibility with seals, gaskets and internal components to reduce the potential for leaks and ensures smooth performance over extended intervals
- Robust anti-wear and inhibitor chemistry provides enhanced component and fluid durability and long-life
Carquest – Cornering Light Socket (Part No.PT189)
from
$23.29
BWD is an aftermarket leader, providing a premium line of engine management products. BWD manufactures and distributes high technology critical components for late model domestic and import vehicles. BWD is constantly evolving to give customers the competitive edge they need to compete in today’s ever-changing marketplace.
Product Features:
See More
Product Features:
- Our control modules feature double wire bonds for better connections, greater dependability and longer life despite being subjected to intense vibration and the tough operating environment
- Copper slug heat sinks provide better heat dissipation to prevent heat from damaging the module
- Our ignition modules will respond to a weak signal from the crankshaft position sensor and begin energizing the coils immediately for better starts in cold weather
- High-temperature polymer housing reducing moisture intrusion and minimizes vibration damage for extended life and improved reliability
- Our ignition modules are durability tested for 500 thermal cycles ranging from -40C to +125C
Bosch – OE Finewire Platinum Spark Plug (Part No.F1000232128BOS)
from
$14.39
2X longer service life compared to standard copper plugs Bosch Platinum Spark Plugs are the newest member of our OE fine wire spark plug family. From the brand trusted in the world’s most advanced engines, Bosch Platinum Spark Plugs are engineered to provide you with improved ignitability and performance.
Product Features:
See More
Product Features:
- OE design for optimum fit and function
- Fine wire design delivers improved ignitability and performance life
- Center electrode is an ultra fine wire design.
- Copper core provides broader heat range to resist pre-ignition
- Tapered shape ground electrode reduces flame shrouding for improved combustion
- Yttrium enhanced to resist wear
- Nickel-plated shell with rolled threads
- Ribbed insulator design
DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IW16TT (Part No.4708)
from
$10.99
Durability of an OE style plug combined with Power & Torque of high performance.
Product Features:
See More
Product Features:
- 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
- 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
- DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
- DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
- Durability of an OE style plug combined with Power & Torque of high performance.
- Withstands temperatures greater than 4000┬░ Fahrenheit
- Iridium TT
- Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
- Reliable and Durable: The flat seat type design ensures a secure fit and consistent performance throughout its lifespan.
E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.64)
from
$6.99
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.64 is a 14mm, 0.750 reach plug with a gasket seat. It fits a wide variety of late model applications, especially import. E3.64 is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
Product Features:
See More
Product Features:
- E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
- Smoother Acceleration & Idle – The faster flame initiated by the The spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
- Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
- Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
- E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
- The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
NGK – Ruthenium HX High Ignitability Spark Plug: DFE Tip Design, LFR6AHX-S (Part No.94122)
from
$14.99
NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE t
Product Features:
See More
Product Features:
- HIGH IGNITABILITY DOUBLE FINE ELECTRODE DESIGN: Combines 0.6 millimeter ruthenium center with opposed fine wire platinum ground electrode
- RUTHENIUM ALLOY CENTER ELECTRODE: NGK’s patented ruthenium technology produces maximum performance, ignitability & durability at high temperatures
- PLATINUM PIN TYPE GROUND ELECTRODE: Provides more complete fuel burn, quicker throttle response, smoother idle and better cold starts
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- RECOMMENDED USAGE: Modern vehicles using OE DFE type spark plugs or for those seeking an aftermarket plug with the latest OE technology
NGK – OE Series Standard Nickel Spark Plug: Semi-Surface Discharge Tip Design, BKR6EKUB (Part No.7969)
from
$9.99
NGK Standard spark plugs (in the iconic NGK ‘yellow box’ packaging) are a proven OE cornerstone and technology customers have relied on for decades. Engineered specifically for OE applications, NGK Standard spark plugs provide OE quality nickel alloy reliable performance and design. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance, while triple gasket sealing prevents combustion gas leakage. Solid 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
Product Features:
See More
Product Features:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode provides consistent performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- Triple Gasket Sealing: Prevents combustion gas leakage, ensuring efficient engine performance.
DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, K20TXR (Part No.5063)
from
$5.79
OEM specified special ground electrode configuration.
Product Features:
See More
Product Features:
- OEM specified special ground electrode configuration
- Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Lasts twice as long as most conventional plugs
- 100% pre-fired to assure reliable operation
- U-Groove Conventional
NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, BKR6E (Part No.6962)
from
$4.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug
Product Features:
See More
Product Features:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
NGK – OE Series Laser Iridium Spark Plug: Fine Wire Tip Design, ILZFR6D11 (Part No.1208)
from
$18.49
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.
Product Features:
See More
Product Features:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
- IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
- PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
- Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance.
- OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
- Even Wear: Features a platinum pad on the ground electrode for even wear, particularly beneficial in distributorless ignition systems.
- Fine Wire Tip Design: The fine wire tip design of the ILZFR6D11 model enhances ignition efficiency and performance.
Champion – Champion Platinum Power – Boxed – RC12PMCB3 (Part No.3720)
from
$5.79
Champion® Platinum Power™ spark plugs deliver powerful performance. Made from exclusive Heat-Active™ alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
Product Features:
See More
Product Features:
- Platinum Power- Premium Spark Plug. Powerful Performance.
- Platinum center electrode for long life
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active™ alloy allows electrodes to reach optimal temperature
- Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, REC8WMPB4 (Part No.9044)
from
$7.29
Maximum Performance, OE Replacement, REC8WMPB4 – the ultimate element for your engine. This premium spark plug features an iridium center electrode that delivers maximum life and a fine-wire center electrode with V-trimmed ground electrode for greater ignitability and sharper spark focus. The Heat-Active alloy ensures the electrodes reach optimal temperature quickly, maintaining stable operating temperature under all engine loads. With a flat seat type and resistor, this spark plug is designed for maximum performance and reliability.
Product Features:
See More
Product Features:
- Champion Iridium – Maximum Performance. Premium Spark Plug
- Iridium center electrode delivers maximum life
- Fine-wire center electrode and V-trimmed for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Maintains stable operating temperature under all engine loads
- Heat-Active alloy allows electrodes to reach optimal temperature quickly
- Flat Seat Type: Designed with a flat seat type for secure and reliable installation.
- Built-in Resistor: Includes a resistor to ensure maximum performance and reliability.
DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IKH20TT (Part No.4704)
from
$10.99
Durability of an OE style plug combined with Power & Torque of high performance.
Product Features:
See More
Product Features:
- 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
- 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
- DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
- DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
- Durability of an OE style plug combined with Power & Torque of high performance.
- Withstands temperatures greater than 4000° Fahrenheit
- Iridium TT
Popular 2003 BMW 525i Ignition and Tune-Up Products Categories
2003 BMW 525i Ignition and Tune-Up Products
You count on your 2003 BMW 525i to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Ignition and Tune-Up Products. With 41 Ignition and Tune-Up Products ranging in price from $3.79 to $197.99, you’re sure to find everything you need for your 2003 BMW 525i.
Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 14 different brands like Autolite, NGK, and DENSO. 2003 BMW 525i Ignition and Tune-Up Products start as low as $3.79!
One of the best ways to find top quality OEM or aftermarket Ignition and Tune-Up Products is by asking professionals. Short of that, you can shop with confidence thanks to our 2,668 extensive product reviews on 2003 BMW 525i Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are DiamondFIRE Automotive Spark Plug: More Power, Saves Gas with 4.1 stars and Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition with 4.6 stars.
Did we mention you can order your Ignition and Tune-Up Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Ignition and Tune-Up Products inventory for your 2003 BMW 525i below to get started!
Top-Rated Ignition and Tune-Up Products Brands For Your 2003 BMW 525i
Trusted Ignition and Tune-Up Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 BMW 525i running right for years to come. In our inventory you’ll find brands like Autolite, NGK, DENSO, and even more.
Popular ACDelco Ignition and Tune-Up Products
You’ll find popular ACDelco brand products across Spark Plugs. All are waiting to get your 2003 BMW 525i back on the road. Some of the top-rated ACDelco products in these categories are:
Top-Rated NGK Ignition and Tune-Up Products
If NGK are what you’re looking for, our inventory holds plenty. We stock NGK brand Ignition and Tune-Up Products for your 2003 BMW 525i, and some of our most reviewed NGK parts include:
from
$12.99
(155)
OE Series Laser Platinum Spark Plug: Semi-Surface Discharge Tip Design, BKR6EQUP
Spark Plugs
FAQs for 2003 BMW 525i Ignition and Tune-Up Products
What are the most purchased Ignition and Tune-Up Products for the 2003 BMW 525i?
Out of 41 Ignition and Tune-Up Products for the 2003 BMW 525i, the most popular in our inventory are:
from
$10.99
(153)
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, last 100K+ Miles, IK20TT
Spark Plugs
from
$9.99
This product is not rated
Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
Spark Plugs
from
$4.79
(126)
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
Spark Plugs
What are the top-rated 2003 BMW 525i Ignition and Tune-Up Products?
Top-rated Ignition and Tune-Up Products for your 2003 BMW 525i based on customer reviews/ratings are:
from
$3.99
(105)
Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition
“Very nice quality. Installed like factory. Ran great.”
