SKU: 8771238051

King Engine Bearings Main Bearing Set for 1968-1969 Pontiac Beaumont (MB 557SI 010)

Sale price$18.90 Regular price$21.00
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Description

King Engine Bearings Main Bearing Set for 1968-1969 Pontiac Beaumont (MB 557SI 010)Carrying on a tradition of durability and dependability, KING Bi Metal (aluminum) engine bearings feature 100% lead free aluminum silicon. King has 4 different variations of their aluminum based bearings: (AM Series) K 783 Standard aluminum based material, equivalent to SAE 783, used for low and medium load engines. King AM Series main and rod bearings are recommended for street or marine applications. They have superior embeddability, which provides

Carrying on a tradition of durability and dependability, KING Bi-Metal (aluminum) engine bearings feature 100% lead-free aluminum silicon.

King has 4 different variations of their aluminum based bearings:

(AM-Series) K-783 -Standard aluminum based material, equivalent to SAE-783, used for low and medium load engines.

King AM-Series main and rod bearings are recommended for street or marine applications. They have superior embeddability, which provides greater macro-particle and reduces scratching of the crank journals and tearing or weakening of the Babbitt overlays. The direct replacements feature tolerance control up to +/- .0001—and they're lead-free, making them environmentally friendly and user-safe. Order the King AM-Series rod bearings in the application designed for proper fitment with your vehicle.

(SI-Series) K-788 -Aluminum based material, strengthen by 2.5-3% silicon, for medium load engines or nodular cast iron crankshafts.

King SI-Series main and rod bearings are recommended for OE applications. These replacement bearings are designed for aftermarket gasoline or diesel engine rebuilding—and performance engines with factory crankshafts. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series main and rod bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Order the bearing set designed for fitment on your make and model.

(SM-Series) K-789 -Aluminum alloy bonding layer. The strongest aluminum based material. The alloy is strengthened by addition of Manganese and Chromium (Mn, Cr), Used for high load applications.

For high load and performance applications, King SM-Series main and rod bearings are the strongest aluminum-based material offered by King. The alloy is strengthened by the addition of manganese and chromium. SM-Series crankshaft main bearings feature a traditional steel-backing, aluminum bonding layer, and the aluminum bearing alloy. They are available for a wide variety of vehicle and engine applications.

(HP-Series) K-787 - King HP-Series rod bearings were developed mainly for drag race applications needing a material harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short durations and still offer higher embeddability and compatibility. In response, King developed the HP-Series featuring the Alecular metal structure.

The HP-Series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip, and some levels of Circle Track racing.

HP-Series bearings are particularly suitable for the following cases:

  • When a tri-metal bearing's Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft
  • When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement
  • When contaminants enter the oil stream, scratching and damaging the crankshaft journals


Check your bearing size using our fitment calculator here
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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: 8771238051

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Trav Tedesco
Los Angeles, US
★★★★★ 4
Inexpensive Solution For Privacy
Color: Grey, Size: 2 Large Panels, Color: Grey, Size: 2 Large Panels
This worked for my needs to get privacy on a second-floor patio that faced neighbors about 16 feet away, and was almost exactly the width and height I need, and was looking for. As the patio was about 12 feet in width. The fabric is thin, but not see-through, and works well enough for my specific privacy needs. It wasn't that sturdy, even with the three legs, the top would kind of bend a bit from the weight of the thing, but I knew this from previous comments on reviews, and opted to use C-clamps and some screws to tighten it to the wall so that isn't an issue since I was outside and had walls to be able to screw into. You may have to try something different if using inside. I gave four stars instead of five as the instructions past Step 3 really don't make much sense for Steps 4 and 5 where the two are connected and when legs are put on, but I was able to work through it eventually. They really need to break down the steps for installing the legs with better illustrations. Also, highly recommend having two people work on it or at least having a second person on standby for certain steps just due to the size of them once they are together or for connecting the dividers together in the end.
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Reviewed in the United States on February 10, 2025
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Christine Q.
Draper, US
★★★★★ 5
Very sturdy & nice looking! Impressive & functional
Color: Black, Size: 2 Large Panels, Color: Black, Size: 2 Large Panels
I needed to divide our living room room in half and create a work room but didn’t want it to be visible so we decided to get this and use it in an L shape. It’s very simple and functional, but it does exactly what I need. I’m contemplating hanging a photograph from a ribbon just to add a little personality to the side that faces the living room room but honestly, it’s much more sturdy than I gave a credit for. I am a full-time reseller so I got foam from the hardware store and covered it in fabric as a background for taking pictures and I have a huge one that’s 6‘ x 3‘ plus another one that’s 4‘ x 4‘ both of which are hanging on the inside of this and it works great. I’m impressed!!
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Reviewed in the United States on December 1, 2025
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joanna
San Leandro, US
★★★★★ 3
Weigh your options
Color: Grey, Size: 2 Large Panels
It serves the purpose but make sure you stabilize it. It's not a bad product it's extremely light and insecure without something to hold the base in place. Maybe it was just the one I bought but it moved a lotI would just bump it a little and it would fall over. The good thing is It is easy to set up and has versatile usage. Also it's really big. Takes up a lot of space make sure you measure your room first.
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Reviewed in the United States on March 11, 2026
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KLCV
Los Angeles, US
★★★★★ 5
Excellent product
Color: Grey, Size: 1 Large Panel
This room separator is really nice. And really easy to assemble. Sturdy-provides nice privacy.
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Reviewed in the United States on April 6, 2026
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Havanafayre
Bozeman, US
★★★★★ 4
Functional not durable
Color: Grey, Size: 1 Large Panel
When first assembled, it looked exactly like the picture. However, over time, the top bar has begun to bow. The metal bars are weaker than I expected. It is still doing it's job providing privacy but the quality is not quite up to par. The height, color, and functionality are all exactly as described. If you need an inexpensive room divider, this is a great option. I don't expect it to last more than a year or two, but I would still recommend this product for those needing something fast, easy to assemble, and don't need for an extended period of time.
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Reviewed in the United States on December 21, 2024

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