AH131624 or 01100342? Which Bajaj RE rear wheel bearing size and number you need

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Quick answer

This guide is about choosing the right number and size. For what AH131624 is, how to spot a fake and when to replace it, read our AH131624 genuine part guide.

Which Bajaj RE do you have? A quick chooser

The easiest clue is the rear axle assembly number. The bearing, circlip and axle are listed together, so if one number matches, the others usually do too.

If you have no catalogue and no label, go to the measuring steps below.

What size is the Bajaj RE rear wheel bearing?

For AH131624, Bajaj does not publish a size. The catalogue lists it only as "Bearing Ball". We have not seen a Bajaj source that gives its bore, outside diameter or width, so we do not give one here.

For the older bearing 01100342, the sources we read do not agree:

A 30 × 55 × 13 mm bearing and a 6204 (20 × 47 × 14 mm in standard tables) are not the same size. So a size printed in a list is not enough on its own.

Our advice: trust the Bajaj part number first. If you need a size, measure the old bearing.

How to measure the old bearing

1. Clean it and lay it flat.
2. Bore (d): measure the inside hole with a vernier caliper.
3. Outside diameter (D): measure across the outer ring.
4. Width (B): measure the thickness of the ring.
5. Read the shield: write down any number or letters on the side.
6. Write it as d × D × B in millimetres, and take two photos (both sides).

Send the three numbers, the photos and the rear axle number to us, and we will match the Bajaj part number for you.

The two catalogue numbers side by side

Is AH131624 a replacement for 01100342? We have not found a Bajaj notice that says so. The two bearings sit in different rear axle sets, so do not swap one for the other unless the axle parts match.

Order by number, size or vehicle name? A scorecard

We scored each way of ordering on how likely it is to give the right part, using only what the catalogues and our measuring steps show. The scores are our judgement, not test results.

How we checked this guide

• We read two Bajaj RE parts catalogues: MF & BF OBD2B (Rev. 00, May 2025, Plate 35) and RE compact 4S FL (Rev. August 2020, Plates 32 and 33).
• We compared them with a Bajaj distributor's online parts shop and a third-party parts list.
• We looked at what people search for. "Bajaj RE rear wheel bearing size" and "Bajaj RE rear axle bearing" both appear in search suggestions (October 2026).
• Where sources disagreed, we say so and do not pick a size.
• Checked on 30 October 2026.

Common mistakes when ordering a Bajaj RE rear bearing

• Ordering by "Bajaj RE" only. The newer and older RE list different rear bearings.
• Trusting one size from one list. Lists disagree for the older bearing, as shown above.
• Ordering only the bearing. Fit a new oil seal 24171024 and the O-rings at the same time.
• Fitting one side only. There are two rear bearings. Replace them as a pair.

Which should you choose?

• If you need a rear wheel bearing for a newer Bajaj RE with rear axle AH131214 (petrol, CNG or LPG), choose genuine AH131624, 2 per vehicle. See the AH131624 part page.
• If your RE is an older 4S or RE FL with rear axle 24171118, choose the number your catalogue gives (01100342 in the August 2020 catalogue), and send us the axle number so we can confirm it.
• If you run a mixed fleet, list each vehicle with its rear axle number and order each bearing on its own line.
• If you cannot find any number, measure the old bearing (d × D × B), take two photos and send them with the model and fuel type.
• If you are doing the full rear wheel job, add oil seal 24171024, O-rings 15101041 and LJA00008, circlip KEBB4717 and spacer AH131163 (newer RE).

Related pages

• AH131624 Bajaj RE rear wheel bearing: genuine part guide
• AH131624 part page: fitment, cross-references and specs
• All Bajaj RE parts
• 24171024 oil seal, 48 dia
• AH131214 rear axle assembly

Frequently asked questions

What is the rear wheel bearing number for the Bajaj RE?

For the newer Bajaj RE petrol, CNG and LPG, it is AH131624, two per vehicle, listed on Plate 35 of the Bajaj RE parts catalogue (MF & BF OBD2B, May 2025). Older RE 4S and RE FL catalogues list 01100342.

What size is the Bajaj RE rear wheel bearing?

Bajaj does not publish a size for AH131624. For the older 01100342, sources disagree (30 × 55 × 13 mm in one catalogue line, 6204 in other lists). Measure the old bearing's bore, outside diameter and width to be sure.

Is AH131624 the same as 01100342?

We have not found a Bajaj source that says AH131624 replaces 01100342. They are listed with different rear axle assemblies (AH131214 and 24171118), so do not swap them unless the axle parts match.

How many rear wheel bearings does a Bajaj RE have?

Two, one on each rear wheel. Replace them as a pair, with a new oil seal 24171024.

How do I find the right bearing if I have no catalogue?

Send the model, fuel type, the rear axle number if you can read it, and two photos of the old bearing with its bore, outside diameter and width. We will match the Bajaj part number.

Need the right Bajaj RE rear wheel bearing?

Send the part number or your rear axle number, the model and the quantity, and we will check it for you:

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• Email: info@nonuventures.com