Bajaj Foam Air Filter Element DH102390 for Pulsar 125 & 150

Bajaj DH102390 Foam Air Filter Element for Pulsar 125 & Pulsar 150

Bajaj catalogue-numbered air-cleaner foam element for compatible Pulsar 125 and Pulsar 150 air-box assemblies. The part number is DH102390 (also written DH 1023 90 in exploded-parts diagrams).

This is the foam filter element within the applicable motorcycle air-cleaner assembly. It is not the larger cartridge-type air-filter element DH102389, not the complete air-box assembly, and not a combined filter service kit.

Fitment warning: Some Pulsar 150 BS4 generations also use the differently numbered foam element DH102277. Match the original spare-part number or the model-specific Bajaj parts catalogue before ordering.

Quick product check

Exact motorcycle compatibility

Use the motorcycle model together with the original part number. The table below describes catalogue usage; it does not mean every year and subvariant of each model uses the same foam element.

Foam filter DH102390 versus cartridge filter DH102389

Wrong-part prevention: If your mechanic asks for a “Pulsar 150 air filter,” verify whether the required part is the foam insert, the cartridge element, the air-box seal or the complete air-filter assembly. These are separate replacement parts.

What this foam element does

The foam filter element forms part of the applicable engine air-intake filtration arrangement. Its job is to help manage the air passing through the intended cleaner assembly and retain contamination according to the designed filtration path. A correctly fitted and maintained filter is important for keeping unwanted dust and debris out of the intake system.

Changing a dirty or damaged element can be appropriate during scheduled servicing. However, reduced mileage, poor pickup, hesitation or hard starting do not prove that an air-filter element is the cause; other fuel, ignition, sensor and engine issues may need diagnosis.

Why choose a part-number-matched Bajaj replacement?

• Identifiable reference: DH102390 can be checked against the applicable Bajaj air-cleaner parts diagram.
• Correct component selection: Buy the foam element without unnecessarily paying for the separate cartridge or complete housing.
• Servicing convenience: A straightforward individual replacement when the existing foam element is the part scheduled for replacement.
• Less fitment ambiguity: Exact part-number ordering is more reliable than generic “fits every Pulsar” descriptions.

This is an original Bajaj parts-catalogue number. Authenticity of an individual retail unit is established by its actual Bajaj packaging and supply source, not by a part-number claim alone.

What is included

• 1 × DH102390 foam air-filter element.

Not included: DH102389 cartridge filter, DH102281 cover O-ring, complete air-box / air-filter housing, screws, clamps, breather hose, engine oil, tools or fitting service.

Installation notes

1. Check the exact vehicle variant and the part number of the original air-cleaner component.
2. Switch the engine off and access the air box according to the correct Bajaj owner's or service manual.
3. Inspect the filter cover, seating surfaces and O-ring; replace any damaged seal as required.
4. Fit the correct foam element in its designed orientation without crushing, cutting or modifying it.
5. Close the air-filter cover properly and ensure its fastening and sealing are secure before starting the engine.
6. Keep the clean side of the air box free from dust during replacement.

Do not apply engine oil, petrol, harsh solvents, compressed air or improvised cleaning procedures to this foam unless the specific Bajaj maintenance instructions for the installed filter explicitly permit them. A damaged or deteriorated element should be replaced.

Maintenance guidance

Bajaj's December 2025 Pulsar 125 BS6 owner's manual calls for replacement of the air-cleaner element at 15,000 km intervals and replacement of the air-filter-cover O-ring alongside the element. This recommendation belongs to the applicable manual and should not be taken as a universal service interval for every Pulsar 150 or earlier Pulsar 125 generation. Always use the maintenance schedule for your actual motorcycle.

Before you order: five-point check

1. Your original required part number is DH102390.
2. You need the foam filter, not the DH102389 cartridge filter.
3. For Pulsar 150 BS4, check whether the correct foam element is DH102390 or DH102277.
4. You are ordering one element, not a two-piece filter combo or full air-box assembly.
5. If uncertain, compare your existing element or confirm using your model-specific parts catalogue before ordering.

Frequently asked questions

1. What exactly is Bajaj DH102390?

It is the foam air-filter element used in selected Bajaj Pulsar 125 and Pulsar 150 air-cleaner assemblies.

2. Is DH102390 the main cartridge air filter?

No. DH102390 is the foam filter element. The separate cartridge-type air filter is identified as DH102389 in the relevant diagrams.

3. Can I use DH102390 in a Pulsar 125 BS6?

It is listed in Pulsar 125 parts references. Match the part number and air-cleaner configuration for your Single Seat or Split Seat variant.

4. Does it fit the Pulsar 125 BS4?

It is included in the identified 125 BS4 parts-reference coverage. Check the original foam element and catalogue before ordering.

5. Will DH102390 fit Pulsar 150 BS6?

Yes, where the model uses the DH102390 foam insert, as shown in the applicable air-cleaner diagrams. Confirm your exact variant.

6. Will it fit Pulsar 150 Twin Disc?

It appears in the relevant Twin Disc BS4/BS6 parts references. Verify the original component code, particularly on BS4 versions.

7. Does every Pulsar 150 BS4 use this foam?

No blanket fitment claim is made. Some BS4 air-cleaner references show DH102277. Confirm the number before buying.

8. Are DH102390 and DH102277 the same part?

No interchangeability is established here. They are separate Bajaj part numbers and should not be substituted without a verified parts-reference match.

9. Are DH102390 and DH102389 interchangeable?

No. One is the foam element and the other is a distinct cartridge filter component. Select the part your motorcycle actually needs.

10. Does the package include the air-filter-cover O-ring?

No. The O-ring is a separate part, commonly identified as DH102281 in the applicable assemblies.

11. Can it be used for Pulsar NS160, NS200 or 220F?

DH102390 is not established as the correct part for those motorcycles. Check their model-specific filter references.

12. Is this a full air-filter assembly?

No. One foam element is supplied; the filter box, cartridge, seals and other components are separate.

13. Will it automatically improve mileage or pickup?

No improvement is guaranteed. Replacing a clogged or damaged filter can support normal maintenance, but performance symptoms may have other causes.

14. How often should I replace it?

Follow the service schedule for your particular model. For reference, Bajaj's December 2025 Pulsar 125 owner's manual specifies an air-cleaner-element change every 15,000 km.

15. Can I clean and reuse the foam?

Do not wash, re-oil or treat the element unless the exact vehicle's maintenance instructions permit that method. Replace damaged or deteriorated filters.

16. How can I prevent ordering the wrong filter?

Match the stamped/packaged original part number or model-specific parts catalogue, and check whether you need the foam element DH102390 or cartridge element DH102389.

Search terms and common market names

Bajaj Pulsar 125 foam air filter, Pulsar 150 BS6 foam filter, Pulsar Twin Disc air filter foam, Bajaj DH102390, DH 1023 90, air cleaner foam element, Bajaj Pulsar air-filter insert, motorcycle engine intake foam filter, Pulsar air filter sponge.

Part number: DH102390   |   Quantity: 1 foam filter element   |   Brand: Bajaj