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NGK 97506 - Spark Plug
Product Overview
The NGK Spark Plug 97506 is engineered to meet OEM standards, ensuring optimal performance for your BMW vehicle. Spark plugs play a vital role in the engine's operation, igniting the air-fuel mixture to drive the pistons and convert this energy into horsepower. A well-functioning spark plug is essential for maintaining engine power, preventing misfires, and ensuring smooth start-up performance. Regular replacement of spark plugs is crucial for vehicle maintenance, with typical service intervals ranging from 10,000 to 60,000 miles depending on the type of spark plug used. Choose NGK 97506 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This NGK 97506 is equivalent to or replaces the following part numbers: SILZKBR8D8S, 97506
Vehicle Compatibility
- BMW M5 4.4 V8 (2011–2013)
- BMW M6 4.4 V8 (2011–2013)
- BMW X5 4.4 V8 (2010–2013)
- BMW X6 4.4 V8 (2010–2013)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
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- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the NGK 97506 Spark Plug do?
The spark plug ignites the air-fuel mixture in the engine, crucial for converting fuel into power. Proper functioning of the spark plug ensures optimal engine performance and efficiency.
How do I know if my Spark Plug needs replacement?
Key signs that your spark plugs may need replacement include engine misfires, rough idling, poor acceleration, decreased fuel efficiency, and difficulty starting the engine.
Can I install the NGK 97506 myself?
Yes, the NGK 97506 can be installed by DIY enthusiasts. However, proper precautions should be taken, such as ensuring the engine is cool and disconnecting the battery prior to installation.
What are the symptoms of a faulty Spark Plug?
Symptoms of a faulty spark plug include poor engine performance, misfires, and reduced fuel efficiency. If you see DTCs such as P0300, P0301, P0302, P0303, it may indicate a failing spark plug.
Why should I choose NGK for my Spark Plug needs?
Choosing NGK ensures you receive a reliable and high-quality product designed for performance. Order NGK 97506 today for a factory-correct replacement that restores safety and performance.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandNGK
- ManufacturerNGK
- MPN97506
- Part TypeSpark Plug
- OE Part Numbers12 12 0 040 573, 12120040573, 12 12 0 039 664, 12120039664, 12 12 7 622 445, 12127622445
- Cross Reference Numbers97506, 8165
- FeaturesCenter Electrode Core Material : Copper
Center Electrode Tip Material : Iridium
Electrical Terminal Type : Non-Removable Nut
Ground Configuration : Standard
Ground Electrode Core Material : Copper
Ground Electrode Quantity : 1
Ground Electrode Tip Design : Square Platinum Electrode - High Ignitability
Hex Size : 14 Bi-Hex
Insulator Height : 50.00
Manufacturer Heat Range : 8
Part Number : SILZKBR8D8S
Pre-Gap Size : .030
Reach : 26.5
Resistance : 5000.0
Seat Type : Flat
Stock Number : 97506
Thread Diameter : 12.00
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2015 | BMW | 228i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | M235i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 228i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | M235i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 328i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | 328i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | 328i GT xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | 335i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 335i GT xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 335i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 528i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | 528i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | 535i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 535i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 535i GT | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 535i GT xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 550i | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 550i GT | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 550i GT xDrive | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | 550i xDrive | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | M5 | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | X4 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | X4 | xDrive28i (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | X5 | M (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2015 | BMW | X5 | xDrive50i (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2015 | BMW | X5 | sDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | Alpina B6 xDrive Gran Coupe | Base (4.4 V8 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2015 | BMW | X6 | M (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2015 | BMW | X6 | xDrive50i (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2015 | BMW | X6 | sDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2015 | BMW | X6 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | 335i | Base (3.0 L6 GAS) | Engine: N55B30A, Notes: Gap 0.032" |
| 2011 | BMW | 335i xDrive | Base (3.0 L6 GAS) | Engine: N55B30A, Notes: Gap 0.032" |
| 2011 | BMW | 535i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | 535i GT | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Engine: N55B30A, Notes: Gap 0.032" |
| 2011 | BMW | 135i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | X6 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | 535i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | 535i GT xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2011 | BMW | X3 | xDrive28i (3.0 L6 GAS) | Aspiration: Turbocharged, Notes: Gap 0.032" |
| 2011 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Aspiration: Turbocharged, Notes: Gap 0.032" |
| 2010 | BMW | 535i GT | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 640i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 640i Gran Coupe | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 640i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 640i xDrive Gran Coupe | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 650i | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 650i Gran Coupe | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 650i xDrive | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 650i xDrive Gran Coupe | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M6 | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M6 Gran Coupe | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | Alpina B6 xDrive Gran Coupe | Base (4.4 V8 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | Z4 | sDrive28i (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 428i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 428i Gran Coupe | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 428i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 428i xDrive Gran Coupe | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 435i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 435i Gran Coupe | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 435i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 435i xDrive Gran Coupe | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X3 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X3 | sDrive28i (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | X3 | xDrive28i (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | X4 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X4 | xDrive28i (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | X6 | M (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2016 | BMW | X6 | xDrive50i (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2016 | BMW | X6 | sDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X6 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X5 | M (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2016 | BMW | X5 | xDrive50i (4.4 V8 GAS) | Engine: S63R, Engine: N63B44B, Notes: Gap 0.032" |
| 2016 | BMW | X5 | sDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X5 | xDrive35i (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | X5 | xDrive40e (2.0 L4 PHEV) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 228i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 228i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | M235i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M235i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M4 | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M4 | GTS (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M3 | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | M5 | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 528i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 535i | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 550i | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 320i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 320i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 328i | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 335i GT xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 328i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 328i GT xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 528i xDrive | Base (2.0 L4 GAS) | Notes: OE Spark Plug Is High Ignitability. For Optimal Performance, Replace With High Ignitability Spark Plugs., Gap 0.032", Actual OE Manufacturer, 60,000 mi OE Mfr Recommended Service Interval |
| 2016 | BMW | 535i xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 535i GT | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 535i GT xDrive | Base (3.0 L6 GAS) | Notes: Gap 0.032" |
| 2016 | BMW | 550i GT xDrive | Base (4.4 V8 GAS) | Notes: Gap 0.032" |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.










