Automobile part number refers to the number of automobile parts, including the virtual product number and management number for technical, manufacturing and management needs.

In order to prevent confusion in the purchase and replacement of automobile parts, each part has a specific code. Understand the part number composition rules, can determine what is this part, and its applicable model range and characteristics, etc.

In our country, the auto parts number according to the China automobile industry Federation in January 1, 1990 promulgated the implementation of the " auto parts number rules" unified preparation. The method is as follows:

( 1 ) car parts number. Automobile parts number by the enterprise name code, group number, group number, part number, structure distinguish number, change experience code ( repair code ), as shown in the figure.

The structure distinguishing number is positioned after the group number or the group number and represents different structures of the group or the grouped system assembly or device; The structural identification number is located at the number of the part number, indicating the different structures of the part assembly or assembly device.

( 2 ) parts not part of the independent assembly number. For connections or controls that are not separate assemblies, the numbering shall be constructed as shown.

( 3 ) part number of independent assembly. For parts that belong to a separate group assembly, the numbering shall be constructed as shown in the figure.

Rules for compiling part numbers of imported automobiles

Imported auto parts do not implement the same numbering rules as domestic auto parts, but each auto company decides its own numbering method. The following faw Volkswagen automobile part number as an example to explain.

Volkswagen's part number consists of a number of numbers or letters and is divided into the following sections separated by spaces.

1, model and unit model ( top 3 )

The model and unit model indicate which model, engine, and transmission the part was originally designed for. Among them, the first two most said models, for example, 1j for Bora or golf, 1k for fast Teng, 2k for kaidi, 3c for meiteng. But this is not absolute.

The last bit of the car model is additional information, from which you can distinguish between left and right driving, the general rule is: odd for left driving, even for right driving.

2, parts classification number ( No. 4 )

The component classification number represents the main group ( i.e., " major" ) code, with a total of 10 main groups, each representing the following meanings.

1 engine and fuel injection system components, including intake pipe, air flow sensor, etc.

2 - fuel tank, exhaust system, air conditioning refrigeration cycle components.

3 a transmission parts.

8 a body parts, including body assembly and decoration, air conditioning and ventilation system, front and rear bumper, etc.

3, subgroup number ( 5, 6 )

The subgroup numb represents that code of the subgroup ( i. e., " subclass" ). For example, under the main group number " 3 - 1 transmission part", the transmission assembly is divided into several subgroups: 00, 01, manual transmission housing, 11, transmission drive shaft, shift fork, 21, automatic transmission housing, 23, forward and reverse clutches, synchronizer, torque converter, shaft, gear, 25, transmission control unit, valve body, transmission oil filter element, transmission oil pan, 31, door, 45, glass, 71, wire harness, 99, transmission bracket, wing beam.

4. part number

The part number consists of three digits ( 001 - 999 ). If the component is left and right ( can be used on the left, and can be used on the right ), its last digit is odd; If the parts are divided into left and right parts, generally odd for the left part, even for the right part.

For example, L1 g d 853 753 / 754 represents the left / right door guard and L1 g d 821 021 b / 022 b represents the left / right fender.

5. design change / technical change number

The design change number consists of one or two letters indicating that the part has undergone a technical improvement. Changes include: changes in component materials, changes in component structure, changes to component technical requirements ( e.g. tolerances, hardness, etc. ), changes in component source ( supplier ). The part design change number is arranged at positions 10 and 11 of the part number.

E.g. l09g 927 750 EP → l09g 927 750 g d, brake resistance; 1k1 820 103 → 1 k 1820 103 b, rear axle body.

6. color code

A component's color code is represented by three numbers or a combination of three letters, which indicates that the component has a color characteristic listed at the end of the part number. For example: 01c is black and glossy, 3u6 is artistic grey, rgu is primed. As to what exactly is the specific color, also need to through the maintenance manual on the column and " color description comparison table" to determine.

Application of part number in automobile maintenance

1, part number difference, means that the control system hardware and software changes

2, different parts number, applicable to different control circuit

3, part number is different, means that the application of different configurations of models

4. different part numbers mean different suppliers of parts

After all, details determine success or failure, so understand the parts of the car, when maintenance will not be garage pit. Details are now the direction of the efforts of the major automobile brands. In this regard, Jiang ling has been good!

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