Asign 4PCS Iridium Spark Plugs 97506 Compatible with BMW 228i, 320i, 328i, 428i, 528i, X1, X3, X4, X5, Z4 (2.0L L4), Replaces# 12120039664, SILZKBR8D8S

Product Description

【VEHICLE COMPATIBILITY】

Precision-engineered for high-performance compatibility with the following BMW 2.0L L4 models:

• 2 Series: 2014-2016 228i; 2015-2016 228i xDrive

• 3 Series: 2012-2018 320i; 2012-2016 328i; 2013-2016 328i xDrive; 2014-2016 328i GT xDrive

• 4 Series: 2014-2016 428i, 428i xDrive; 2015-2016 428i Gran Coupe, 428i xDrive Gran Coupe

• 5 Series: 2012-2016 528i, 528i xDrive

• X Series: 2012-2015 X1; 2013-2017 X3; 2015-2018 X4; 2016-2018 X5

• Z Series: 2012-2016 Z4

【INTERCHANGE PART NUMBERS】

Direct replacement for the following OE and manufacturer part numbers:

• BMW OE: 12120039664, 12120038896, 12120038704

• NGK: 97506, SILZKBR8D8S

【PREMIUM IRIDIUM CONSTRUCTION】

Asign spark plugs are designed for superior ignition performance. Each center electrode is crafted from extremely fine iridium for faster and more sensitive ignition jumps. The insulators are made from high-strength isostatic ceramics, ensuring high density and excellent insulation to prevent electrical leakage and withstand high-pressure combustion environments.

【RESTORE ENGINE PERFORMANCE】

By providing fuller combustion and a consistent spark, these plugs significantly improve power performance and throttle response. The advanced design ensures a longer service life with an economic cycle of 30,000 to 40,000 kilometers, helping to restore lost fuel economy and ensure smooth engine operation.

【OE LEVEL QUALITY】

Manufactured by a TS16949 certified manufacturer, these 100% brand-new spark plugs meet rigorous quality standards for OE-level durability. Our exquisite production process ensures a perfect fit, providing you with high-quality auto parts you can trust for your vehicle's maintenance.

【CUSTOMER SERVICE】

We value your shopping experience. Please confirm compatibility based on your vehicle's year, model, and OE part number. If you have any questions regarding installation or fitment, our professional support team is available 24/7 to assist you.