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Diesel Injector Technical Guide
How to Read Bosch 0445110 Series Injector Numbers
Learn how to identify Bosch injector part numbers, OE numbers, injector coding, compensation codes and factory traceability marks before ordering a replacement injector.
This Bosch injector number guide explains how to read Bosch 0445110 series injector numbers, OE numbers, compensation codes and batch marks before ordering. This Bosch injector number guide is useful because common rail injectors often have several different numbers printed on the injector body or top marking area. For repair shops, diesel parts distributors and engine service customers, knowing which number to use is important.
In this guide, we use a Bosch 0445110315 diesel injector as an example to explain how to read Bosch 0445110 series injector numbers, how to identify the OE number, and which numbers should be used when requesting a quote or ordering a replacement injector.
Quick Summary
The full Bosch injector part number, such as 0445110315, is the most important number for matching. OE numbers, compensation codes and batch marks may appear on the same injector, but they do not have the same purpose.
This Bosch injector number guide helps buyers avoid using batch marks or compensation codes as the main injector model number.
Bosch Injector Number Guide for 0445110 Series
Bosch common rail injectors often use a part number format such as 0445110xxx. This is commonly called the Bosch 0445110 series in the diesel injection parts market. The complete number should be used as the main reference when matching or ordering a replacement injector.
On this injector, the Bosch number is printed in two lines:
0445110
315
Read together, this becomes Bosch Number: 0445110315
Do not use only the last three digits. The complete Bosch number 0445110315 is the correct number for searching, quoting, product listing and compatibility checking.
Which Number Is the OE Number?
The OE number is usually the original equipment number used by the vehicle or engine manufacturer. On this injector, the OE number shown on the top marking area is:
16600-VZ20A
This number can be used to cross-check the Bosch injector number 0445110315. For ordering and quoting, the best practice is to confirm both numbers when possible.
- Bosch Number: 0445110315
- OE Number: 16600-VZ20A
Which Number Is the Compensation Code?
A code such as ASHEDRF is not the Bosch injector model number and not the OE number. It is commonly used as injector coding, calibration or compensation information.
Important: The compensation code can vary from injector to injector, even when the Bosch part number is the same. Do not use the compensation code as the product model.
What Do the Other Small Numbers Mean?
Small numbers such as 2485, 2415, 51962, a circled number such as 598, or a Data Matrix code are usually production, factory, testing, batch or traceability marks.
These numbers are useful for manufacturing and quality tracking, but they are not the main numbers buyers use to select the correct injector.
For more general information about Bosch automotive technology and diesel systems, you can also visit the Bosch Mobility official website.
How to Choose the Correct Bosch Injector
- Confirm the Bosch number, such as 0445110315.
- Confirm the OE number, such as 16600-VZ20A.
- Check the vehicle, engine or machine application.
- Compare the injector connector, body shape and fuel pipe position.
- Confirm whether injector coding is required after installation.
The Bosch number and OE number are the most reliable information for matching. Vehicle model alone is not always enough because the same vehicle may use different injectors depending on engine code, production year or market version.
Quick Number Guide
| Number on Injector | Meaning | Use for Matching? |
|---|---|---|
| 0445110315 | Bosch injector part number | Yes, main matching number |
| 16600-VZ20A | OE number / manufacturer reference | Yes, important cross reference |
| ASHEDRF | Injector coding / compensation code | No, not for product matching |
| 2485 / 2415 / 51962 | Batch, factory or traceability marks | No |
| Data Matrix code | Factory traceability code | No, usually not used by buyers |
What Information Should You Send?
When requesting a quote or checking compatibility, send the Bosch injector number and OE reference number together. For this example, the key numbers are:
- Bosch Number: 0445110315
- OE Number: 16600-VZ20A
This is more accurate than using batch codes, factory marks or injector compensation codes. This Bosch injector number guide is intended to help buyers send the correct information before ordering.
Need Help Matching a Bosch Injector?
If you are not sure which number is the correct part number, send us a clear photo of the injector top marking, side view, connector and nozzle end. Our team can help check the Bosch number, OE number and compatibility before quoting.