How to Identify the Correct Replacement Parts for Your Air Compressor

Ordering the wrong filter or gasket wastes time and money. This step-by-step guide explains how to read your compressor’s identification plate and translate it into the exact parts you need—whether you run an ABAC piston, an Atlas Copco GX screw or a dental oil-free unit.

Close-up of compressor nameplate showing make, model and serial number

1. Locate the Nameplate

Nearly every compressor includes a small data plate or sticker—usually on the main frame, motor shroud or inside the panel door. Record the following:

  • Make / Brand – e.g. ABAC, Atlas Copco, FINI, NUAIR, HPS etc.
  • Model Code – often a mix of letters and numbers such as B6000 or GX7.
  • Variant or Version – defines pressure or motor power (7.5 bar / 10 bar, 5.5 kW / 7.5 kW etc.).
  • Serial Number – unique ID used by the manufacturer to trace build spec.
  • Year of Manufacture – useful when models evolve through generations.

2. Use Our Make → Model → Variant Search

On CompressorParts.co.uk you can filter by Make, Model and Variant to show compatible service kits and filters. Behind the scenes we map each variant to its OEM references—so “ABAC Genesis 7.5 10 bar” automatically lists matching separator, oil filter and gasket set.

3. Cross-Reference OEM Numbers

If your maintenance manual lists original numbers (for example “6221372450” or “9056100”), enter them in our search bar. We’ll return either the OEM item or a verified alternative that meets the same spec. Our database covers thousands of ABAC, Atlas Copco, FINI, NUAIR and HPS references.

4. Photograph Before You Disassemble

Take a quick photo of filter positions and hoses before you start work. Many kits include similar-looking seals; a reference image avoids re-assembly errors.

5. Measure When Labels Are Missing

For older machines with faded plates, you can still identify parts by dimensions. Measure filter diameter and height in millimetres and note thread type. Send these to our team and we’ll match the closest OEM spec or aftermarket equivalent.

6. Common Data Points We Use for Matching

  • Motor power (kW / HP)
  • Pressure rating (bar / psi)
  • Air delivery (l/min or CFM)
  • Controller type (ES 3000, Air Control 5.1 etc.)
  • Tank capacity (litres)

7. Avoid These Mistakes

  • Assuming all 7.5 kW compressors share the same filters—they don’t.
  • Mixing variants (e.g. GX7 vs GX7-FF dryer integrated) which use different separators.
  • Buying by visual similarity only—dimensions may be identical but micron ratings and gasket designs vary.

8. Our UK Support Process

Send your details via the contact form or email photos of your plate to our technical team. We’ll confirm the correct kit within 24 hours and provide options for OEM or cost-effective alternatives.

Next step: Explore ABAC Parts · Atlas Copco Parts · Service Kits · Filters

FAQs

Where is the serial number on my compressor?

Usually on a metal plate on the main frame or inside the cabinet door; sometimes engraved on the airend or motor housing.

Can you find parts if the plate is missing?

Yes—measure dimensions or send photos of filters and coolers; we’ll identify them manually.

What details should I include in my enquiry?

Make, Model, Variant, Serial, kW, bar and a photo if possible. The more you give us, the faster the match.

See also: Compressor Service Kits Explained