PRODUCT DETAILS
Honda OEM K Series Main Input Shaft Ball Bearing - 91001-PPP-005
Rebuilding your K series transmission? This is the genuine Honda main input shaft ball bearing for K series gearboxes. It installs into the clutch case where the input shaft goes in. It's the same bearing that came in your transmission from the factory, so it fits right and lasts. If your input shaft bearing is worn out or noisy, you'll hear grinding or whining from the transmission, especially when the clutch is engaged. Replace it with this OEM bearing and your trans will shift smooth and quiet again. Part number 91001-PPP-005.
Why You Need OEM on an Input Shaft Bearing
The input shaft bearing handles all the torque coming from your clutch into the transmission. It spins whenever the clutch is engaged, which means it takes constant abuse. Cheap aftermarket bearings often use lower quality steel or looser tolerances, so they wear out faster or make noise even when they're new. This genuine Honda bearing is built to the same specs as the original, so you get the reliability and service life Honda engineered into your transmission.
When to Replace It
If you're hearing grinding, whining, or rattling from your transmission that's loudest when the clutch is engaged, your input shaft bearing is probably worn out. You'll also want to replace it if you're doing a transmission rebuild or if you're swapping in a used trans and want to make sure the bearings are fresh. Don't reuse a questionable bearing and end up tearing the transmission apart again in six months.
Compatible Engines
- K20A2, K20A3, K20Z1, K20Z3
- K24A1, K24A2, K24A4, K24A8
- K24Z2, K24Z3, K24Z7
Specifications
- Honda part number: 91001-PPP-005
- Genuine Honda OEM replacement
- Main input shaft ball bearing for K series transmissions
- Installs into clutch case where input shaft mounts
Note: Verify your part number before ordering. This bearing is for K series manual transmissions only. If you're rebuilding your transmission, replace all the bearings and synchros while you're in there.