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King Engine Bearings

King Racing - XP Series B & K-Series Crankshaft Main Bearing Set

King Racing - XP Series B & K-Series Crankshaft Main Bearing Set

SKU:MB5259XP

Category: Bearings
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Regular price $83.00
Regular price Sale price $83.00
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Bearing Type

HIGHER LOAD CAPACITY

The only bearing with load capacity of 17,000psi in the intermediate and 10,200psi in the overlay

BETTER FATIGUE RESISTANCE

The only bearing that goes through a hardening process creating a black fatigue resistance shield, which makes the overlay 24% stronger than any other bearing (11.5hv vs 14.5hv)

MORE ACCURACY

The only bearings with wall thickness variation of ±.0001” as a standard in comparison to ±0.00025”. 

MORE CONSISTENCY

from bearing to bearing, requiring less adjustment during assembly

ONE SET FITMENT

The only bearings that don’t require you to buy multiple sets to achieve desired oil clearance. King’s Unique Technologies pMAX Black™ – This unique tri-metal bearing structure was developed to meet the ongoing demand for increased engine bearing load capacity. The intermediate layer uses a copper based alloy with 4.5% tin for added strength that is the strongest in the industry, at 115 HV. This gives the bearing a load capacity of 17,000 psi in the intermediate!

The overlay is also 24% stronger because of a 5% copper alloy with a fatigue resistance of 10,200 psi, 17% more than a standard bearing. King’s SecureBond™ etching process also improves the multi-layer adhesion and structural integrity of the bearing. U-Groove™ – By using a 90° groove as opposed to a chamfered groove, the effective surface area of the bearing is increased. That in turn, increases the bearing load capacity and gives a better load distribution across the surface of the bearing. Bull’s Eye Tolerance™ – King’s standard for bearing thickness consistency has set new standards in the industry. 

With King bearings, there is no need to purchase multiple sets of bearings to get the right clearance, no need to grind cranks, and no need to adjust housing diameter. ElliptiX™ – This newly designed oil slot improves oil ingress without affecting the bearing’s surface or compromising the load capacity. RadiaLock™ – To prevent spun bearings, King has developed a unique process to customize each bearing’s crush height to meet its specific performance demands.

EccentriX™ – By using elasto-hydrodynamic analysis, an optimized eccentricity value for each bearing is reached and the bearing is custom designed using this value to meet specific performance requirements. This process allows a more stable hydrodynamic lubrication regime is reached. With XP series bearings now available for popular sport compact engines, there’s no reason to look elsewhere when building a performance engine.

Bearing Types:

  • MB - Main bearing set
  • CR - Con Rod bearing set
  • CS - Camshaft bearing set
  • TW - Thrust washer set

Material Construction:

  • HP - Bi-metal Aluminum Silicon Alloy
  • XP - Tri-metal Copper Lead

Bearing Features:

  • N - Narrowed
  • D - Doweled

 

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations. For international orders, please Contact Us. If you select US shipping rates and are shipping internationally, please be advised you will be contacted to compensate the difference in shipping fees.

Processing takes about 3 to 5 business days before your order ships. We do not process or ship orders on weekends. If you order an item that's on backorder, we will reach out with an estimated arrival time. If you have any questions about shipping make sure to email us at sales@onlinetsm.com or call our reps today at 732-638-5268.

If by any chance, your package that has been delivered by the carrier is lost/stolen, YOU (THE BUYER) are responsible for working with the carrier and us, Tri-State Motorsports to recover your package. You must contact us and the shipping company within 48 hours of delivery for lost/damage claims. You are covered by the basic insurance amount APPROVED by the shipping center. We DO NOT refund or reship product for claims that are denied by the shipping company.

FAQs

When will my product ship out?

Processing takes about 3 to 5 days before your order ships. Some orders may take longer than usual to process and ship. If you order an item that's on backorder, we will reach out with an estimated arrival time. Refunds are subject to a 20% restocking fee. Cancellations are subject to 10% cancellation/processing fee under no exceptions.

What's the Warranty on our products?

Unless the product is manufactured by Tri-State Motorsports or TSM Race, ALL Warranties go through the Manufacturer directly. Please visit their official website and get in contact with them in regards to your warranty. We will supply you with any invoice or tracking information the manufacturer asks you for.

Do you offer any promotions?

One of our major promotions is the TSM Bucks Loyalty Program. You will earn 1 TSM point for every dollar you spend with us. These points can be redeemed for rewards when you reach certain thresholds. 

TSM Bucks Info

If you subscribe to marketing emails, you will be given a discount code for 5% off your order that you can use at any time. Our Instagram page also has a variety of weekly promotions in our stories and posts. Some restrictions may apply depending on MAP policies.

What payment methods are accepted?

Tri-State Motorsports accepts American Express, Discover, Mastercard, and Visa. You can also pay over time with Affirm and Klarna. Express checkout methods include:

  • Apple Pay
  • Google Pay
  • Meta Pay
  • PayPal
  • Shop Pay
  • Venmo

How can I finance my purchase with Affirm?

Learn More On Affirm

How can I finance my purchase with Klarna?

Learn More On Klarna

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