SKU: 65868730851

King Engine Bearings Main Bearing Set (MB1328XP)

Sale price$66.15 Regular price$73.50
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Description

King Engine Bearings Main Bearing Set (MB1328XP)Todays sport compact race engines make more power than ever before. Yesterdays engine bearings load capacity no longer works for todays sport compact race engines. Tomorrows engines will be even more powerful. King bearings meet these demands with higher performance benchmarks, advanced materials and unique geometrical features. King Racings SV, GPC, XP, and XPC series of rod and main bearings were developed to meet these challenges through

Today’s sport compact race engines make more power than ever before. Yesterday’s engine bearings’ load capacity no longer works for today’s sport compact race engines. Tomorrow’s engines will be even more powerful.

King bearings meet these demands with higher performance benchmarks, advanced materials and unique geometrical features.
King Racing’s SV, GPC, XP, and XPC series of rod and main bearings were developed to meet these challenges through technologically advanced geometrical features and a unique metal structures. Together, they drive the industry to a higher level of durability, performance and expectation.

pMax Black is a unique tri-metal structure the has been developed to meet the ongoing demand for bearings with increased load capacity. As engines evolve and gain more power, engine bearings have to be able to handle the extra loading.

pMax Black consists of three layers that come together to form the strongest tri-metal bearing in the industry with load capacity exceeding the competition by as much as 24%. King Racing’s new hardening technology modifies the overlay molecular structure and creates a fatigue resisting shield.

The intermediate layer of a typical race bearing contains 2-3% tin, with hardness values of 90-95 HV. For a superior pMax Black intermediate layer, we increased the tin content to 4.5%, making it 22% harder (115 HV), with a load carrying capacity of 17,000 psi.

The overlay of a typical high performance bearing consists of a leaded alloy that contains 2-3% copper. It achieves a hardness level of 11 – 14 HV, and a maximum load capacity of 8,000-8,500 psi. King’s pMaxBlack overlay is significantly stronger than conventional overlays due to its 5% copper content and an innovative nano-scaled hardening process.

The pMaxBlack overlay contains 5% copper. It is further strengthened by a proprietary nano-scaled hardening process that modifies the molecular structure and creates a black fatigue-resistant shield. The outcome is a significant 29% increase in overlay hardness (18.1HV) and overall 24% increase in load capacity (10,200 psi).

SecureBond – Maximum tri-metal structural integrity

High loads and high RPM’s create critical stresses that travel through the multi-layer construction of a tri-metal race bearing. SecureBond is a micro-etch surface preparation process that strengthens the tri-metal structural integrity. SecureBond reduces the likelihood of catastrophic failure due to delamination of one layer from the other under extreme load conditions or metal–to-metal contact.

 



Check your bearing size using our fitment calculator here
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65868730851

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LD
Bozeman, US
★★★★★ 5
Very satisfied with purchase!
Color: Silver, Memory Storage Capacity: 256 GB, Set name: Wi-Fi + Cellular
Everything worked as advertised. Nice 11rh generation iPAD.
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Reviewed in the United States on April 30, 2026
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IAmMonye
Lake Worth, US
★★★★★ 5
Perfect condition
Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular, Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular
Works perfectly fine, no scratches or dents. Battery life is great. Worth the purchase.
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Reviewed in the United States on April 14, 2026
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Brian M. Edwards
Bozeman, US
★★★★★ 5
Just Love this.... Read On!
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Like knew and seems to have been powered on one time only. Apple treat it as a new device. Its spotless and works great. I have had several ipad pro's and decided to by this instead and I actually prefer it. It does everything I could do with my ipad pro 2020 and then some. Its faster, good cameras. The e-sim card works great though I do wish it had a physical sim card slow.. oh well! The battery life is really excellent, it was quick to set up via a transfer from my old device. I added a case that looks like a fancy note book and love it. This helps with drops and scratches. I have not added a screen protector yet. The storage capacity is the same as my old ipad pro, I will never use 128 gb anyways... To sum up, this gets 10 out of 10... and its a great replacement for a ipad pro!
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Reviewed in the United States on November 13, 2025
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Lola
New York, US
★★★★★ 5
Great conditions just like new
Color: Yellow, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Hey I usually don’t leave reviews but I do feel Like this one needed one thank you for sending out the iPad well packed .. I received it in great condition it’s been working pretty good no complains I got it for my 3 year old son who’s on his third iPad lol hopefully this is his last , just like new I love it no scratches nothing literally brand new thank you
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Reviewed in the United States on May 24, 2026
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Bri
Battle Creek, US
★★★★★ 5
Good quality, good price, bad shipping tho
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi
Honestly I was really happy with the iPad. The one I got was RENEWED in Excellent quality. I will start off by saying that it was poorly packaged during shipping and the iPad box was severely damaged, but luckily my iPad was just fine. The iPad came decently, but not fully, charged and was quick and easy to set up. The battery life does not last as long as my Galaxy Note 20 Ultra, but I am also sure I do not have it optimized for battery saving. I got this iPad for 2 reasons. 1) To be a pseduo laptop with a keyboard case for school, and 2) procreate. I am overall happy with the item. I'm just sad I found a better deal on the exact same model sold at Walmart and its in pink (;-;). The item functions well, and is as described, it was a really good deal
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Reviewed in the United States on October 2, 2025

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