Larger Energy BMW Auto Spark Plugs Mechanism Reduces Flashover Performance

Product Specification

Auto Spark Plugs BMW 1 3 5 6 7 X6 Z4 1.6L 2.0L 3.0L (2004-) 12 12 0 034 087

1, OE Number or Parts Number

12 12 0 034 087 / 12 12 0 037 244 / 12 12 0 034 091 / 7 563 502 / 7 555 344 / ZGR6STE2 / ZKBR 7AP-HTU / 0 242 140 507 / 12 12 0 038 349 / 12 12 0 037 244

2, Fit Model

3 , Testing And Warranty

4 , Single side pole with multi-side spark plug

The conventional unilateral spark plug has a noticeable drawback that the side electrode covers the center electrode. When the high-voltage discharge between the two poles, the spark gap at the mixture will absorb the spark heat and ionization is activated to form a "fire nucleus." The location of the formation of the fire nuclei generally close to the side of the electrode, the heat will be more side electrode absorption, that is, the electrode "flame suppression effect", which reduces the spark energy,
The spark plug mechanism reduces the flashover performance.
Thus, in the 1920s, there were three sides of the spark plug. Compared with the unilateral pole, the spark gap of the multi-side pole is composed of a cross section of a plurality of side electrodes (round hole) and a cylindrical surface of the center electrode, and the side spark gap eliminates the fact that the side electrode covers the center electrode Shortcomings, increased sparks "reachability", spark energy larger, easier to deep into the cylinder, help to improve the combustion of combustion conditions and reduce emissions. As the multi-side pole provides a number of flashover channel, thus extending the service life, improve the reliability of the ignition. It must be pointed out that the moment of discharge can only be a channel flashover, it is impossible to jump at the same time the side of the pole. The high-speed photography of the discharge process proves this.
In the domestic spark plug model, the suffix letters (letters after the number of heat values) D, J, Q, respectively, said the double pole, three side pole, four side pole.

5 , Production Process

1, iron shell grinding: finished semi-finished products after grinding the shell, polished a variety of spark plug models of the hexagonal side.

2, the welding side of the electrode: polished after the top of the iron in the top of the need for welding side of the electrode.

3, grinding screw: grinding the required thread size and thread length.

4, pressing the number: pressed to build the number.

6 , FAQ (Fluently Asked Questions)

Q1. If we don't find the model type here, Please tell us.

   1, Please send us your OEM number.

   2, Please send us your photo and products size if you have.

   3, Please tell us your exact car model if you do not have photo or OEM number.

Q2. What is your terms of packing?

   1, Generally, the product is loaded into a white bubble bag or foam box and then loaded into a neutral carton.

   2, You can also use our DMCOIL brand box.

   3, Of course, if you have your own box is also possible.

Q3. Can you produce according to the samples?
   1, Yes,we can offer a sample,also for some items,the sample is free,for others,not. It depends.Please feel free to contact us for more information about the sample.
And buyers should pay for the shipping fee.

Q4. What is your sample policy?
   1, We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q5. Do you test all your goods before delivery?
   1, Yes, we have 100% test before delivery.

Q6. What is your terms of payment?
   1, T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q7. I want to buy your products, how can I pay?

   1, Through bank transfer,we'll show the account information on PI.

   2, Others:We can make specifications according to customer's requirement.