FREE SHIPPING over $99 | Fast Shipping! Warranty
 

BMW Mercedes Spark Plug (Iridium Long Life) 31216183 - Denso 3421

BMW/Mini OE: 12120037663, 12122158253 SAAB OE: 55564748 Volvo OE: 30650843, 30751805, 30751806, 31216183

Alternate Brand Options
Logo for Denso
$4.99
Logo for NGK
$5.09
Logo for Bosch
$6.39
Logo for Bosch
$7.59
Logo for NGK Laser Platinum
$8.19
Logo for Bosch
$8.59
Logo for Bosch
$9.39
Logo for NGK
$9.99
Logo for NGK Laser Iridium
$11.19
Logo for NGK Laser Iridium
$11.59
Logo for Genuine SAAB
$13.99
Logo for NGK Laser Iridium
$19.19
Logo for Genuine BMW
$21.99
Logo for Genuine BMW
$23.99
Logo for Genuine Volvo
$54.99
Logo for Genuine Volvo
$63.99
Logo for Genuine Volvo
$75.99
Logo for Genuine Volvo
$75.99
Recently Viewed and Suggested Parts
$15.99
$42.29
$52.99
$37.99
Logo for Denso
Spark Plug (Iridium Long Life) 3421A Main Image
$6.29
In Stock [ info ]
Quality: OEM [ info ]
Warranty: 2 Year [ info ]
InStock542188New
SKU: 3421A
Qty: 
Add to Cart

Spark Plug (Iridium Long Life) by Denso

About Spark Plugs

The spark plug is a critical component to the proper running engine. In a conventional gasoline engine, the air fuel mixture is ignited by the spark plug to drive the piston down and convert this energy to horsepower. If your spark plugs aren't in good shape, this crucial process can be severely hindered to the point of power loss, hesitation, misfires, and poor start up performance. Typical service schedule for standard copper tip spark plugs is between 10,000 and 30,000 miles. Iridium plugs have a more durable (but weaker) electrode that can last upwards of 60,000 miles, and platinum plugs can be rated to go as far as 100,000 miles before the electrode is spent. When replacing spark plugs, be sure to abide by the part numbers in your owner's manual for best performance, and always use dielectric grease to make a sealed and secure electrical connection.

eEuroparts.com® carries an extensive catalog of aftermarket, OEM, original, and genuine parts from over 200 manufacturers. We are also constantly updating our Denso parts selection to give you the best possible selection of parts.

If there is anything you cannot find in our catalog please contact us and our knowledgeable customer service team will help you locate the part you need, fast.

Country of Manufacture: Not Specified
Manufacture Quality: OEM
Shipping Weight (lbs): 0.110

BMW/Mini OE No.
Current No.: 12120037663
Current No.: 12122158253 Prior No.: 12120032137, 12120032138, 12120035915
SAAB OE No.
Current No.: 55564748
Volvo OE No.
Current No.: 30650843
Current No.: 30751805
Current No.: 30751806 Prior No.: 30650379
Current No.: 31216183 Prior No.: 30713859


About Denso

DensoDenso Logo

DENSO has taken everything they have learned as an OE manufacturer and applied it to their aftermarket product lines. Every component that leaves their factories has been designed with precision, manufactured to OE standards and subjected to rigorous safety and performance tests.

DENSO factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. A recipient of the prestigious Deming Award for quality in 1961, they've spent over five decades perfecting their technology and processes, a claim that few automotive manufacturers can make.

The OE-standard quality and reliability of DENSO aftermarket components add up to a tremendous value for eEuroparts.com® customers. eEuroparts.com® carries Denso A/C compressors and mass airflow sensor inserts for BMW, Volvo, and Mercedes-Benz.

If this is not the exact Spark Plug (Iridium Long Life) you are looking for, or you would like this part in a brand other than Denso, please contact us and one of our customer service experts will help you locate the exact part you need.

Vehicle Fitment & Notes

Click a year range, make, and model below for additional information.

+ BMW 128i 2008-2013

+ BMW 325i 2006-2006

+ BMW 325xi 2006-2006

+ BMW 328i 2007-2013

+ BMW 328i xDrive 2009-2013

+ BMW 328xi 2007-2008

+ BMW 330i 2006-2006

+ BMW 330xi 2006-2006

+ BMW 525i 2006-2007

+ BMW 525xi 2006-2007

+ BMW 528i 2008-2011

+ BMW 528i xDrive 2009-2010

+ BMW 528xi 2008-2008

+ BMW 530i 2006-2007

+ BMW 530xi 2006-2007

+ BMW X3 2007-2012

+ BMW X5 2007-2010

+ BMW Z4 2006-2011

+ Mercedes-Benz E55 AMG 2003-2003

+ Mercedes-Benz G55 AMG 2005-2011

+ Mercedes-Benz S55 AMG 2003-2006

+ Mercedes-Benz SL55 AMG 2003-2008

+ SAAB 9-3 2006-2009

+ SAAB 9-5 2010-2011

+ Volvo C30 2008-2013

+ Volvo C70 2006-2013

+ Volvo S40 2004-2011

+ Volvo S60 2004-2009

+ Volvo S80 2007-2010

+ Volvo V50 2005-2011

+ Volvo V70 2004-2010

+ Volvo XC60 2010-2010

+ Volvo XC70 2009-2010

+ Volvo XC90 2007-2010

Warranty

Within 30 days of your shipment date, defective parts may be returned for a refund, store credit, or exchange. After 30 days this product is supported by a two (2) year warranty against defects. After 30 days and up to two (2) years from your shipment date, defective parts may be returned for a refund when a new part is purchased. The new part will carry a new two (2) year warranty from the date of shipment. The cost to ship you a new one and ship the defect back to us is not included in this warranty. After two (2) years eEuroparts.com com® will honor any extended manufacturer's warranty. No exchange will be offered outside of the manufacturer's warranty process. Parts covered by the manufacturer warranty need to be exchanged through the manufacturer and may take up to 4-6 weeks. This warranty is inclusive meaning that if it is not specifically stated here it is not covered. Labor to replace the damaged part and any consequential damage due to failure of the part are never covered under this warranty.

Delivery & Returns

Delivery Info

eEuroparts.com® proudly offers wholesale prices and fast shipping available on most orders.

Every eEuroparts.com® order is track-able, meaning you'll know exactly where your Spark Plug (Iridium Long Life) is at every step of the shipping process. eEuroparts.com® also displays your Expected Ship Date and transit time in your Cart, making our entire shipping process simple and transparent.

Returns Info

eEuroparts.com® offers a thirty (30) day cash return for all items purchased through eEuroparts.com®. The item must be new and in its original manufacturer packaging to be eligible for a cash refund.

If you would like to return an item or have questions about the process, please contact us and one of our customer service experts will be happy to help.

This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Trustpilot