King Engine Bearings Main Bearing Set (MB7039XPCSTDX)
SKU: 23608935011

King Engine Bearings Main Bearing Set (MB7039XPCSTDX)

Sale price$141.62 Regular price$157.35
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Description

King Engine Bearings Main Bearing Set (MB7039XPCSTDX)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
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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: 23608935011

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Belleville, US
★★★★★ 5
Easy to put together
Color: Black, Color: Black
I was pleasantly surprised by how well this room divider is designed. The engineering behind it is actually pretty thoughtful. All the pieces line up exactly where you expect them to, and the connectors make assembly almost foolproof. I had it put together in just a few minutes without any frustration or extra tools. The fabric panels look clean and modern, and the whole unit is surprisingly lightweight. That makes it easy to move around if you want to reconfigure a room or create a quick private space. Even though it’s light, it still feels stable once it’s assembled. Overall it’s a simple product done right: easy to assemble, easy to move, and it does exactly what it’s supposed to do. I’d definitely buy it again.
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Tabitha Bouwie
Carnegie, US
★★★★★ 5
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Yesss this here was A LIFE SAVER for my Nail business.. thanks so sturdy and worth every bit of the price! I love it so much it kept everything meaning people from looking in being nosy on the other side of my garage family room. And not to mention it’s able to go wherever you go!
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Lassiter Denton
Lowell, US
★★★★★ 5
Great quality.
Size: Large, Color: (001) Black / Black / White
Thickness and comfort are great. Quality is great and the same I would expect if I bought at the branded storefront.
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Reviewed in the United States on March 11, 2026
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Joseph Pratt
Alexandria, US
★★★★★ 5
Great product.
Size: Small, Color: (001) Black / Black / White
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Chelsey Bartoli
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★★★★★ 5
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Size: Medium, Color: (001) Black / Black / White
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Reviewed in the United States on November 6, 2025

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