Parts for your 2003 Honda Stream-Centre bearing

2003 Honda Stream centre-bearing — is it even a thing?

For most 2003 Honda Stream models found in Australia and New Zealand, a centre-bearing (centre support bearing for a propeller shaft) isn’t used or relevant. The Stream is built on a Civic-based, transverse front-wheel-drive layout, so there’s no long prop shaft running to the rear that would need a centre support. That means no traditional “centre-bearing” is part of routine servicing or parts replacement on the common RN1–RN4 FWD variants.

This conclusion lines up with technical references: Honda’s Stream Service Manual (2001–2005) details the front-wheel-drive driveline without a propeller shaft on RN1–RN4, and lists a propeller shaft assembly only for the RN5 4WD variant, Honda’s Electronic Parts Catalogue (EPC) groups a “Propeller Shaft (4WD)” and a centre support only to RN5, period sales literature also notes FF (front-engine, front-drive) as standard, with 4WD available only on certain grades in Japan.

Why there’s no centre-bearing on a typical 2003 Stream is simple mechanics. The transaxle sends power directly to the two front driveshafts. Without a rear differential and a long, two-piece prop shaft, there’s nothing that needs a centre support bearing. That component exists on rear-drive or all-wheel-drive vehicles with a multi-piece prop shaft to control vibration and support the shaft under load.

There is one important exception: the Japan-market RN5 4WD Stream. That model uses a rear differential and a prop shaft, and it does have a centre support bearing. If someone’s got an RN5 import, a centre-bearing can be relevant to their servicing and parts list.

Owners sometimes hear “centre-bearing” used loosely to describe the right-hand intermediate shaft bearing on some FWD Hondas. That’s a support bearing for the front driveshaft (to equalise shaft lengths), not a prop shaft centre-bearing. If a workshop mentions a “centre-bearing” on a FWD Stream, they’re almost certainly talking about that intermediate shaft support.

Quick ways to tell if a 2003 Stream could have a centre-bearing:

• Check the chassis code: RN5 indicates 4WD, RN1–RN4 are FWD.
• Look underneath for a prop shaft running to a rear diff (4WD) versus a flat floor with no prop shaft (FWD).
• Build plate or compliance notes may specify 4WD/Real Time 4WD on RN5.

Technical sources referenced: Honda Stream Service Manual 2001–2005 (Driveline/Axle and Propeller Shaft sections), Honda Electronic Parts Catalogue (RN1–RN5 model grouping), and 2003 Honda Stream sales/brochure specifications for FF and 4WD availability.

Popular questions about 2003 Honda Stream centre-bearing

How can someone confirm whether their 2003 Honda Stream actually has a centre-bearing?
They should check the chassis code on the build/compliance plate. If it’s RN5 (4WD), the car will have a prop shaft and a centre support bearing. RN1–RN4 are FWD and won’t have one. A quick look underneath for a rear diff and prop shaft is the giveaway.

Is the intermediate shaft bearing on a FWD Stream the same as a centre-bearing?
No. The intermediate shaft bearing supports the right-hand front driveshaft on some FWD setups and is bolted to the engine/transaxle. A centre-bearing supports a long, two-piece prop shaft and only shows up on AWD/4WD or RWD layouts. On FWD Streams, technicians might colloquially call the intermediate bearing a “centre” bearing, but it’s a different part with different symptoms and service steps.

What noises suggest a failing centre-bearing on an RN5 4WD Stream?
On RN5 models, a worn centre-bearing can cause a droning or humming that rises with road speed, a shudder on take-off, or a clunk as load comes on and off. On FWD models, similar noises would more likely point to front wheel bearings or CV joints rather than any centre support.