

Original Honda PCX 125 Crankcase Bearing Radial Ball 6004U (91016-KBB-901) | 2018-2020
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Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.
The original Radial Ball Bearing (91016-KBB-901) for Honda PCX 125 (2018-2020) restores rotational stability and reduces internal friction within the transmission assembly. Built for a factory-perfect fit, it ensures precise shaft alignment and protects against heat-induced failure, maintaining the mechanical integrity of your drivetrain and ensuring a reliable and vibration-free ride.
Vetted by our Lead Engineer. Leveraging 30 years of mechanical pedigree, every part is inspected for material density and exact tolerances to ensure a 'Right-First-Time' fit.
Guaranteed fitment for Honda PCX125 or free returns.
Delivery Information
Orders placed before 12:00pm (UK time) are usually dispatched the same working day. Orders placed after this time will be dispatched on the next working day.
In the rare event of a stock shortage, we will notify you promptly and issue a full refund within one working day if the item cannot be supplied.
Once dispatched, tracking information will be provided via email, provided valid contact details are supplied at checkout.
While we aim to meet all estimated delivery times, delays may occasionally occur due to circumstances beyond our control, such as courier issues, weather conditions, or operational disruptions. Should this happen, we will keep you informed.
Delivery Areas
We currently deliver to:
• United Kingdom
• Republic of Ireland
• Isle of Man
• Jersey & Channel Islands
• Most European destinations
If you are unsure whether we deliver to your location, please contact us prior to placing your order.
Verified UK Entity #15361806 operating from our NW10 London Logistics Hub. Skip the wait with express workshop pickup.

Product Compatibility
Compatibility charts are for reference only. Please compare part numbers and manufacturers' details. Contact us before ordering if unsure to avoid delays or refund charges.
Trademark Disclaimer: All trademarks, brand names, and logos remain the property of their respective owners and are used solely for identification and compatibility purposes. We are an independent retailer and are not affiliated with any authorized dealer or distributor.
- 91016-KBB-901
_
- PCX125
- 2018
- 2019
- 2020
- Honda
- 125
- PCX125
- NEW
Product Overview
This high-quality Original Crankcase Bearing Radial Ball 6004U is designed to meet or exceed factory performance standards and is suitable for Honda PCX125 (2018-2020) models.
The crankcase bearing radial ball 6004U is a precision bearing that provides smooth, low-friction support for the rotating shafts within the engine crankcase, enabling the engine's internal components to operate efficiently and quietly throughout the full range of engine speeds. As the bearing wears through normal use, the rolling elements develop surface pitting or spalling, the cage degrades, and internal clearances increase, resulting in audible bearing noise, increased vibration, and the risk of sudden bearing failure that can cause significant engine damage. This original replacement restores the original crankcase bearing precision and performance, ensuring seamless, secure, and reliable operation of your PCX 125.
- Brand New Original Crankcase Bearing Radial Ball 6004U
- Part Number: 91016-KBB-901
- Original replacement for Honda PCX 125 (2018-2020)
- Restores smooth, low-friction crankcase shaft support
- Prevents bearing noise, vibration, and premature engine damage
- Direct fit, no modification required
- Ideal for engine bottom-end rebuild and scheduled crankcase bearing replacement
- London: Express same-day delivery (2-3 hours)
- Rest of UK: Same-day dispatch on orders before 1 PM (3-4 business days delivery).
- Up to 75% off for B2B Trade Accounts. Independent UK garages, apply now.
• Honda PCX125 owners with a noisy, vibrating, or worn crankcase bearing
• Replacing the Crankcase Bearing Radial Ball 6004U during engine rebuild or crankcase overhaul
• Mechanics and workshops carrying out Honda PCX125 engine bottom-end servicing
• Riders wanting to restore the original crankcase bearing performance to their 2015-2025 PCX125
• Anyone looking for a guaranteed original replacement for their Honda PCX125
Complete Part Guide
The 6004U radial ball bearing is a vital rotational anchor for the 2018-2020 Honda PCX125, supporting the internal shafts within the crankcase and gearbox interface. A failing bearing typically manifests as a high-pitched "whirring" or a deep metallic drone that intensifies as engine RPM increases. This original Honda part (91016-KBB-901) features a specialized single-lip seal to maintain lubrication while protecting the races from engine debris. In stock at Part Hive's London warehouse; complete your order before 1 PM to enjoy same-day UK dispatch.
We frequently find that high-mileage Honda PCX-125s develop a "growl" from the transmission, often traced back to a worn 6004U bearing. Once the internal races become pitted, the resulting vibration can cause premature wear on the oil seals and shafts. Replacing a noisy bearing promptly is essential to prevent a catastrophic gearbox failure. This original Honda Crankcase Bearing Radial Ball 6004U (91016-KBB-901, 2018-2020) is manufactured to factory tolerances, ensuring a press-fit that eliminates shaft play and restores the smooth, silent operation required for city commuting.
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