How to Find the Correct Laptop Spare Part by Model Number

Finding the correct laptop spare part can be confusing because the same laptop series may have many different configurations, revisions and part numbers.

A keyboard, cooling fan, HDD connector, DC jack, hinge, palmrest, bottom base or charger that looks similar may not necessarily be compatible with your laptop.

The safest way to find the correct replacement part is to start with your exact laptop model and then verify the part’s compatibility.

At Rega IT, you can use the Laptop Part Finder to select your laptop brand, series and exact model and see compatible products.

Why Your Exact Laptop Model Matters

Laptop manufacturers often release several versions of the same laptop series.

For example, a laptop may be sold as:

HP 15 Series

but the actual model could be:

• HP 15-DA
• HP 15-DB
• HP 15-DR
• HP 15-DK
• HP 15S-DU

These models can use different keyboards, fans, cables, hinges, palmrests and other internal parts.

Therefore:

Do not order a laptop spare part based only on the brand or general series name.

Always try to identify the complete model number.

Step 1 – Identify Your Laptop Brand

First identify the manufacturer of your laptop.

Common laptop brands include:

• HP
• Dell
• Lenovo
• Acer
• ASUS
• MSI
• Toshiba
• Samsung
• Sony
• Fujitsu
• Microsoft
• Apple
• Huawei
• Xiaomi

The location and format of the model information varies between manufacturers.

Step 2 – Find the Exact Laptop Model

There are several ways to find your laptop model.

Check the Sticker on the Laptop

Turn the laptop over and look at the bottom cover.

You may find information such as:

Model: HP 15-DA0002TU

or:

Model: Lenovo IdeaPad 320-15IKB

or:

Model: ASUS X515FA

You may also see:

• Model
• Product Name
• Product Number
• Machine Type
• Model Type
• Serial Number
• Service Tag

Do not confuse these numbers with one another.

HP Laptop – How to Find the Model Number

HP laptops commonly have the model information printed on the bottom of the laptop or on a product label.

You may see something similar to:

HP 15-DA0002TU

or:

HP Pavilion 15-BC

or:

HP 250 G6

HP can also display additional product information such as a product number or serial number.

For spare parts, the complete laptop model is generally more useful than the serial number.

Example

Instead of searching:

HP laptop keyboard

search:

HP 15-DA0002TU keyboard

This produces a much more specific compatibility target.

Dell Laptop – How to Find the Model

Dell uses several identifiers, including the model name and Service Tag.

The Service Tag is a unique identifier and can be found on the bottom of many Dell laptops, in BIOS/UEFI, or through Dell’s support tools.

You may see models such as:

• Dell Inspiron 15 3567
• Dell Latitude E5470
• Dell Vostro 15 3568
• Dell Inspiron 15 5570

For spare-part searching, record the model, not just the Service Tag.

If necessary, the Service Tag can help identify the exact Dell system through Dell Support.

Lenovo Laptop – How to Find the Model

Lenovo laptops commonly use model names such as:

• IdeaPad 320-15IKB
• IdeaPad S145-15IKB
• IdeaPad 3-15
• ThinkPad E480
• ThinkPad T480
• ThinkBook 15

You may also see a machine-type identifier such as:

80XL

or:

81D2

These identifiers can be extremely useful because different configurations of a similar Lenovo model may use different hardware.

Example

Instead of:

Lenovo IdeaPad keyboard

use:

Lenovo IdeaPad S145-15IKB keyboard

And where available, also check the machine type.

ASUS Laptop – How to Find the Model

ASUS recommends checking the complete model name, particularly when identifying a device for support or BIOS/driver information.

Examples include:

• ASUS X515FA
• ASUS VivoBook 15 X515
• ASUS TUF Gaming FX505
• ASUS ROG Strix G531

Do not stop at a general name such as:

ASUS VivoBook 15

There may be several different hardware configurations.

Look for the complete model designation.

Acer Laptop – How to Find the Model

Acer laptops commonly use model names such as:

• Aspire 3 A315-23
• Aspire 5 A515-54
• Aspire 7 A715
• Nitro 5 AN515-55
• TravelMate P2

Look for the complete model number on the bottom label or within the system information.

For example:

Acer Aspire A315-23

is more useful for spare-part searching than simply:

Acer Aspire 3

MSI Laptop – How to Find the Model

MSI laptops commonly have model families such as:

• MSI GF63
• MSI GF65
• MSI GL63
• MSI GL65
• MSI Modern 14
• MSI Katana 15
• MSI Raider

Always try to identify the complete model designation.

For example:

MSI GF63 Thin 10SC

is much more useful than:

MSI GF63

Toshiba / Dynabook

Older Toshiba laptops and newer Dynabook systems may use model identifiers such as:

• Satellite C50
• Satellite L50
• Tecra
• Portege

The complete model or part/product number can be important because multiple configurations may exist under the same family name.

Samsung

Samsung laptops may have identifiers such as:

• NP300
• NP350
• NP550
• Galaxy Book

Look for the complete model code on the bottom label or in system information.

Sony VAIO

Sony VAIO laptops can have model names such as:

• VAIO E Series
• VAIO Fit
• VAIO S Series
• VAIO Pro

Because VAIO models can have multiple configurations, record the complete model number whenever possible.

Fujitsu

Fujitsu systems may use families such as:

• LIFEBOOK
• CELSIUS
• ESPRIMO

The complete model designation is important when selecting replacement parts.

Microsoft Surface

Microsoft Surface devices use model families such as:

• Surface Laptop
• Surface Laptop Go
• Surface Pro
• Surface Book

For Surface devices, the exact generation/model is particularly important because parts can differ significantly between generations.

Apple MacBook

Apple uses several identifiers that can help determine the exact Mac model.

On a Mac, you can select Apple menu → About This Mac to see the model name. Apple also provides model identifiers and part numbers for identifying specific Mac models.

For example, you may encounter:

• MacBook Air
• MacBook Pro
• MacBook
• MacBook Air 13-inch
• MacBook Pro 14-inch

But the year/generation and exact model identifier can be important.

For example, simply saying:

MacBook Pro 13

is usually not enough to identify a specific spare part.

Model Number vs Serial Number

This is one of the most important things to understand.

Model Number

Identifies a particular laptop model or configuration.

Example:

HP 15-DA0002TU

Serial Number

Identifies your individual laptop.

Example:

A serial number unique to your machine

Service Tag

Some manufacturers, particularly Dell, use a unique Service Tag to identify an individual system.

Part Number

Identifies a spare part or a manufacturer’s reference for that part.

Example:

L20386-001

These are not interchangeable identifiers.

Don’t Buy a Spare Part Using Only the Part Number

This is especially important for laptop replacement parts.

A single replacement part may have several:

• Manufacturer part numbers
• Revision numbers
• Supplier numbers
• Cable numbers
• Board numbers
• Assembly numbers

Two compatible versions may therefore have different printed numbers.

For this reason, part number matching should not always be the only method used to determine compatibility.

Instead, compare:

Laptop model + compatibility information + physical part + connector/layout

Check the Physical Part Too

Even after identifying the laptop model, compare the replacement part with your original part.

Check:

Keyboard

• Keyboard layout
• Language
• Number of keys
• Enter key shape
• Touchpad/palmrest arrangement
• Backlight
• Ribbon cable
• Connector position
• Colour

HDD Connector Cable

Check:

• Connector shape
• Cable length
• Connector position
• Cable routing
• HDD interface
• Mounting arrangement

Cooling Fan

Check:

• Fan shape
• Screw positions
• Connector
• Cable length
• Heat-sink arrangement
• CPU/GPU configuration

DC Jack

Check:

• Connector type
• Cable length
• Plug/socket configuration
• Mounting position
• Number of wires

Hinges

Check:

• Left/right side
• Screw-hole positions
• Mounting shape
• Hinge design

Palmrest / Top Cover

Check:

• Laptop model
• Colour
• Keyboard opening
• Touchpad opening
• Fingerprint reader
• Power-button arrangement
• Screw/mounting points

Why Similar-Looking Parts Can Be Wrong

Two laptop parts can look almost identical but have different:

• Connectors
• Cable lengths
• Screw positions
• Mounting points
• Electrical specifications
• Keyboard layouts
• Physical dimensions

Therefore, similar appearance does not guarantee compatibility.

Use Rega IT’s Laptop Part Finder

If you are unsure which part fits your laptop, the easiest approach is to identify your laptop first and then use the compatibility selector.

Select:

Brand → Series → Exact Model

Then check the products available for that exact model.

This allows you to search for compatible laptop parts without having to guess from the product title or part number.

Use the Rega IT Laptop Part Finder

Example: Finding an HP Laptop Keyboard

Suppose your laptop is:

HP 15-DA0002TU

Do not search only for:

HP keyboard

Instead, identify:

Brand: HP
Series: 15-DA
Model: 15-DA0002TU

Then look for a keyboard specifically listed as compatible with that model.

You should also check:

• Colour
• Layout
• Connector
• Physical design

Example: Finding a Lenovo HDD Connector Cable

Suppose your laptop is:

Lenovo IdeaPad 320-15IKB 80XL

Don’t simply search:

Lenovo HDD cable

Instead identify:

Brand: Lenovo
Series: IdeaPad 320
Model: 320-15IKB
Machine Type: 80XL

Then compare the connector and cable with the original part.

What Information Should You Send When Asking for a Spare Part?

If you cannot find the correct part yourself, provide as much of this information as possible:

1. Laptop brand
HP / Dell / Lenovo / Acer / ASUS / etc.

2. Complete model number

3. Machine type / product number, if available

4. Photo of the laptop label

5. Photo of the existing part

6. Part number printed on the existing part, if available

7. Photo of the connector

This information makes compatibility checking much more reliable.

What If the Laptop Does Not Turn On?

You can still identify many laptops.

Check:

• Bottom label
• Battery compartment
• Original box
• Purchase invoice
• BIOS/UEFI
• Manufacturer label
• Service tag
• Model sticker

For Apple Mac computers, the model name and serial number can also be obtained through Apple’s system information tools or the physical device/packaging.

Don’t Confuse the Laptop Model With the Spare-Part Number

For example:

Laptop model:

HP 15-DA0002TU

Spare part reference:

L20386-001

They identify two completely different things.

The first identifies the laptop.

The second identifies a part/reference number.

This distinction is important when ordering replacement parts.

The Safest Way to Order a Laptop Spare Part

Use this process:

1. Identify the brand

HP, Dell, Lenovo, Acer, ASUS, etc.

2. Find the exact laptop model

Don’t stop at the broad series.

3. Identify the part you need

Keyboard, fan, HDD cable, DC jack, hinge, palmrest, charger, etc.

4. Check compatibility

Use the exact laptop model rather than relying only on appearance.

5. Compare the physical part

Check connector, cable, layout, dimensions and mounting points.

6. Check reference numbers

Use part numbers as additional confirmation rather than the only deciding factor.

7. Order only after compatibility is confirmed

Common Mistakes to Avoid

❌ Searching only by brand

HP laptop keyboard

Too broad.

❌ Searching only by series

Lenovo IdeaPad 320 keyboard

There can be multiple configurations.

❌ Assuming the same series uses the same part

Different configurations may use different parts.

❌ Matching only a printed part number

A compatible replacement can sometimes have a different revision/reference number.

❌ Ignoring keyboard colour/layout

A keyboard can physically fit but still have the wrong layout or colour.

❌ Ignoring the connector

A visually similar cable or component may have a different connector.

❌ Assuming every configuration of a model family is compatible

Always verify the exact model where possible.

Quick Model-Finding Guide

Frequently Asked Questions

Can I find a laptop spare part using only the laptop brand?

Usually, no. The brand is only the first step. You should identify the exact laptop model.

Can I use the serial number to find a part?

A serial number identifies your individual laptop. It can help the manufacturer’s support system identify the machine, but for spare-part compatibility you should also record the actual model.

Is the part number enough?

Not always. Use the part number together with the exact laptop model and physical characteristics of the part.

Why does the same laptop model sometimes have different parts?

Laptop manufacturers can produce different configurations, regional versions and hardware revisions.

What if my replacement part has a different part number?

Don’t automatically assume it is wrong. Some compatible replacement parts can have different reference or revision numbers. Compare the exact laptop compatibility and physical design.

What if I don’t know my laptop model?

Check the bottom label, BIOS/UEFI, Windows system information, manufacturer support software, original packaging or purchase documentation.

Can I send Rega IT a photo?

Yes. A clear photograph of the laptop’s model label and, where possible, the original spare part can make identification easier.

Final Checklist Before Ordering

Before purchasing a laptop spare part, make sure you know:

✓ Brand
✓ Exact laptop model
✓ Series
✓ Machine type/product number where applicable
✓ Required spare part
✓ Connector/layout
✓ Colour where relevant
✓ Physical design
✓ Reference part number where available
✓ Compatibility with your exact laptop

Still not sure?

Use the Rega IT Laptop Part Finder to select your laptop brand, series and exact model, then view the compatible products available for that model.

Products on the compatibility pages are checked for compatibility with the specified laptop model.

For additional help, contact Rega IT before ordering so the correct replacement part can be identified.