Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Engine Bearings
Wiseco
Wiseco Main Bearing, 28 x 68 x 18 mm
SKU: W00C B5011
Easy — 1–2 hours
Overview
Show original supplier description
Part #: B5011
Wiseco main bearings are manufactured by many of the same suppliers to the OEMs, including leading Japanese manufacturers, and are inspected for accuracy, function, and cleanliness for efficient and reliable service.
Features:
- Manufactured by the same suppliers to OEMs, including leading Japanese manufacturers
- Precision machined and finished with high-quality materials
- Inspected for accuracy, function, and cleanliness
Wiseco Main Bearing, 28 x 68 x 18 mm
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Loud knocking noise from engine bottom end
- Excessive vibration during acceleration
- Metallic grinding sound when revving
- Loss of engine power and rough running
- Oil pressure warning light flickering
Relevant Conversations
- Why is my motorcycle engine knocking loudly?
- Symptoms of worn main bearings in motorcycle
- How to diagnose bottom end noise motorcycle
- Wiseco B5011 main bearing installation guide
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- Best main bearings for high RPM engine build
- Motorcycle engine rebuild bottom end bearing replacement
- Loud knock at idle goes away with revving cause
- Main bearing failure prevention tips
- Co-purchase: piston rings and gaskets with main bearings
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Wiseco |
| Part Number | W00C B5011 |
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About MOTORMIA
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
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