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Bus and Truck Spark Plug Cooper spark plug and Champion Beru sparking plug

Categories Car Spark Plugs
Brand Name: GOMEX
Model Number: AT-SP3
Certification: GOST ISO 9001-2011; SGS TS16949
Place of Origin: Zhejiang China
MOQ: 4000pcs
Price: 0.3-2.2USD/PC
Payment Terms: T/T, L/C, Western Union
Supply Ability: 4800000pcs per month
Delivery Time: 30 days after received your payment
Packaging Details: Packed in the box and reinforced with carton for outer packing
Product Name: Sparking Plugs
Application: Bus Truck
Warranty: 2 year
Size: Customized
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Bus and Truck Spark Plug Cooper spark plug and Champion Beru sparking plug


Bus and Truck Spark Plug Cooper spark plug and Champion Beru sparking plug


The top of the spark plug contains a terminal to connect to the ignition system. The exact terminal construction varies depending on the use of the spark plug. Most passenger car spark plug wires snap onto the terminal of the plug, but some wires have eyelet connectors which are fastened onto the plug under a nut. Plugs which are used for these applications often have the end of the terminal serve a double purpose as the nut on a thin threaded shaft so that they can be used for either type of connection.


The main part of the insulator is typically made from sintered alumina,[6][7] a very hard ceramic material with high dielectric strength, printed with the manufacturer's name and identifying marks, then glazed to improve resistance to surface spark tracking. Its major functions are to provide mechanical support and electrical insulation for the central electrode, while also providing an extended spark path for flashover protection. This extended portion, particularly in engines with deeply recessed plugs, helps extend the terminal above the cylinder head so as to make it more readily accessible.


Spark plug for automobile, motocycle, lawn mower and other engine.

1. High quality & Save gas

2. Long life & Competative price
3. Nickel & Cooper Electrode

4. Platinum & Iridium Electrode

Match with NGK spark plug
Match with BOSCH spark plug
Match with Beru spark plug
Match with Eyquem spark plug
Match with Brisk spark plug



Q1 What is the heat rating of a spark plug?
A spark plug must dissipate the heat produced by the combustion gases. The heat rating is a measure of the amount of heat dissipation.
It is essential to use a spark plug with a heat rating that matches a specific engine and its condition of use.
When a wrong heat rating is selected,
When the heat rating is too high,
The spark plug temperature remains too low and causes deposits to build up on the firing end; the deposits provide an electrical leakage path that possibly cause misfire.
When the heat rating is too low,
The spark plug temperature rises too high and induces abnormal combustion (pre-ignition); this leads to melting of the spark plug electrodes that could cause problems such as piston damage.

Q2 In addition to correct heat rating, what other precautions should be taken during installation of spark plugs?
A Ensure the spark plug has the correct thread reach.
The engine will not operate properly without the proper thread reach.
If a spark plug with the wrong thread length is erroneously used, the piston or valve could strike it and damage the engine. Moreover, there is also the concern that the electrode could overheat and melt.

A Ensure the spark plug has the correct projection dimensions.
There are several types of spark plug igniter shapes.
Sometimes, even when the length of the thread is correct, installing a spark plug with long metal shell projection dimensions may cause it to be struck by the piston or valve and result in engine trouble. Only use projection type plugs as specified by the manufacturer.

When trying to remove a spark plug that is tight and will not come out easily, removing it by force may damage the neck of the threaded section and break the seal section of the spark plug, causing the threaded section to remain in the cylinder head.
To remove such a spark plug without excessive force, first operate the engine and allow it to warm up the cylinder head, then apply penetrating oil to the threaded section.
After a short while, the spark plug can be removed.

Quality Bus and Truck Spark Plug Cooper spark plug and Champion Beru sparking plug for sale
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