SKU: 98222954887

King Engine Bearings Main Bearing Set (MB4057AM)

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Description

King Engine Bearings Main Bearing Set (MB4057AM)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
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 98222954887

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Jorge Selman
Boise, US
★★★★★ 5
If you want a great soap in a budget, buy Cremo body wash.
Scent: Cypress Santal, Size: 16 Fl Oz (Pack of 1)
Really good soap!! Leaves your skin soft and smells great. Light fragance and provides a good lather.
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Reviewed in the United States on April 25, 2026
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David Percival Flores
Battle Creek, US
★★★★★ 5
Beat the Humidity with This Citrus Powerhouse
Scent: Bergamot, Size: 16 Fl Oz (Pack of 1)
​In the middle of a brutal, humid Philippine summer, finding a body wash that actually boosts your confidence is a game-changer. Cremo’s Italian Bergamot isn’t just a soap; it’s a full olfactory experience. It opens with a vibrant, tart Italian bergamot that immediately cuts through the heat, followed by the freshness of vetiver, and the neroli blossom adds a sophisticated floral touch. ​True to Cremo’s Reserve collection, the scent is beautifully layered. It builds in intensity as you lather, allowing the earthy, fresh vetiver to anchor the citrus. Unlike many drugstore options, this lingers—stepping out of the shower, you can still catch the crisp citrus and the clean, woody dry-down on your skin. It’s the ultimate reset for a hot day.
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Reviewed in the United States on April 11, 2026
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madeline bohn
Port Orchard, US
★★★★★ 5
Awesome
Scent: Blue Cedar & Cypress, Size: 16 Fl Oz (Pack of 1)
This soap smells fantastic, and leaves you feeling clean! Great find, went back to buy the other scents!
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Reviewed in the United States on May 29, 2026
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Stan Ohis
Massapequa, US
★★★★★ 4
I Smell Like a Gentleman Who Owns a Fireplace
Scent: Bourbon Oak, Size: 16 Fl Oz (Pack of 1)
The fragrance is warm, woody, and slightly sweet...that low amber note that smells expensive without trying to smell expensive, which, as we all know, is the actual expensive smell. My wife walked past me twenty minutes post-shower and said, unprompted, "You smell really good." I nodded like I had planned this. The lather is genuinely rich; squeeze a modest amount and it blooms into a thick, creamy foam that covers everything efficiently. The texture is silky rather than watery, which matters more than people admit. Watery body washes feel like rinsing off with slightly scented regret. This one feels intentional. It cleans, and your skin actually feels clean afterward, not just rinsed. And the moisturizing? I wasn't expecting it. No greasy film, no lotion-begging dry patches by midday. Just quietly softer skin that doesn't make a big announcement about it. Now, my honest gripe: the scent longevity has a ceiling. By mid-afternoon you're back to neutral. That's the gap between four stars and five for me. For daily freshness and an incredible morning window of smelling genuinely great, it absolutely delivers...but it won't carry you to bedtime. On value: 16 fl oz is decent, the lather is efficient so the bottle lasts, and the price sits in that sweet spot where you feel like someone who makes slightly elevated but still reasonable choices, which is exactly the vibe this entire product is going for.
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Reviewed in the United States on April 21, 2026
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Kindle Customer
Grantham, US
★★★★★ 5
Lathers great in a small amount!
Scent: Bergamot, Size: 16 Fl Oz (Pack of 1), Scent: Bergamot, Size: 16 Fl Oz (Pack of 1)
Lathers great for a small amount! A fair price for the amount and rich content. I just bought, used and love it. Definitely will purchase again. I love the sophisticated yet sensible smell doesn't overpower. In my perception it is a unisex scent as I am a woman and bought for myself.
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Reviewed in the United States on May 28, 2026

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