Parts for your 2021 Mitsubishi Asx-Centre bearing

2021 Mitsubishi ASX centre-bearing: what owners need to know

After checking the technical references, the 2021 Mitsubishi ASX sold in Australia and New Zealand does not use a centre-bearing. The ASX is a front-wheel drive (2WD) compact SUV with a transverse engine and transaxle, so there’s no long propeller shaft running to a rear differential. Without a two-piece prop shaft, there’s no need for a centre support bearing. This is supported by the Mitsubishi ASX/RVR/Outlander Sport Service Manual (Propeller Shaft section notes apply to 4WD models only), the Mitsubishi Motors Australia 2021 ASX Specifications (range listed as 2WD), and the Mitsubishi ASA parts catalogue for 2WD ASX models, which shows no centre support bearing part listing for this year’s local-spec vehicles.

Why no centre-bearing on the 2021 ASX? It comes down to the driveline layout. The transaxle sends power straight to the front wheels via two short driveshafts (CV shafts). There’s no rear drive module on the local 2021 range, so the car doesn’t carry a prop shaft, universal joints, or the centre support bearing assembly that a two-piece shaft would require. That design choice trims weight, reduces mechanical complexity, improves packaging space under the floor, and removes a potential noise/vibration point.

For anyone chasing a mid-floor vibration or a droning noise in a 2021 ASX, it won’t be a centre-bearing. Common culprits to check instead include front CV joints, engine or transmission mounts, tyre feathering or out-of-balance tyres, and wheel bearings. A qualified technician can road test and inspect the front driveline and tyres to pinpoint the cause.

Technical sources referenced: Mitsubishi ASX/RVR/Outlander Sport Service Manual (GS platform) – Driveline and Propeller Shaft sections (propeller shaft and centre support bearing apply to 4WD only), Mitsubishi Motors Australia 2021 ASX Specifications/Brochure – range listed as 2WD, Mitsubishi ASA Electronic Parts Catalogue – 2021 ASX 2WD driveline listing without centre support bearing.

• No centre-bearing fitted on 2021 ASX (AU/NZ 2WD models)
• Front-wheel drive transaxle with two front CV shafts
• No rear differential or propeller shaft on local 2021 models

Does a 2021 Mitsubishi ASX have a centre-bearing?

No. The local 2021 ASX is front-wheel drive and doesn’t have a rear propeller shaft, so there’s no centre support bearing in the driveline. Any vibration issues are more likely related to tyres, wheel balance, CV joints, or mounts.

I can hear a hum or feel a vibration under the floor – could that be a centre-bearing?

On a 2021 ASX, it won’t be a centre-bearing because the car doesn’t have one. Get the tyres checked for wear or cupping, verify wheel balance, and have the front driveline and engine/trans mounts inspected.

Did any ASX models use a centre-bearing?

Earlier or overseas AWD variants of the ASX/RVR/Outlander Sport with a two-piece propeller shaft can use a centre support bearing. However, the 2021 Australian and New Zealand ASX range is 2WD and doesn’t carry this part.