SKU: 92870934216

King Engine Bearings Main Bearing Set for 1985-1992 BMW 735i (MB 770AM)

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Description

King Engine Bearings Main Bearing Set for 1985-1992 BMW 735i (MB 770AM)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
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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]
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SKU: 92870934216

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Brittney Settles
Lake Worth, US
★★★★★ 5
Graduation Approved
Size: 10.5, Color: Black, Size: 10.5, Color: Black
These shoes turned out perfect for a last minute graduation outfit change. I loved the finish of the shoe and how comfortable my son said his feet felt while being on them so long in new shoes. They honestly looked just as good as a pair of Cole Haans. Very affordable price for a comfortable shoe.
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Reviewed in the United States on June 6, 2026
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C. C. Jones
Bozeman, US
★★★★★ 5
Incredible!! Looks like a dress shoe, feels like a sneaker
Size: 13, Color: Black
These shoes are amazing. The other comments about comfort are an understatement. I bought these because, although I am a professional working in a business office, I can't bear to wear dress shoes all day so I've always gotten very not-flashy plain black but very comfortable sneakers and hoped for the best in either nobody paying much attention to my shoes or at least not thinking it a big deal. Now I'm off to a business trip meeting with some bigwigs where I'm a bit more self-conscious than usual about the shoes, and I'm thinking either I can get out the dress shoes I own and deal with the discomfort for the week, or see if there is anything like a dress shoe that's actually comfortable. The AI inquiry found these as one of the options, and it was a terrific suggestion. They pretty much look enough like a dress shoe to totally pass when I'll be wearing them with some nice slacks and button-up shirts and blazer. When they arrived earlier today and I laced them up and put them on, these might very well be the most comfortable shoes I've ever had on my feet. I was thinking the Rockport shoes I'd worn maybe 15-20 years ago were the king of the hill for comfort, but I believe these have outdone those. When I put them on and was wearing them around the house to get a feel for them, I really didn't want to take them off. I walk around the house in socks or bedroom slippers, but these shoes are awesome. I've found my everyday shoes to replace the black sneakers I'd been wearing for the past few years that have reached the point where they needed to be retired anyway. When these wear out, I think I'll try another pair from the same manufacturer. I hope their other shoes feel like these. Before asking the AI, I had no idea there were actually "dress sneakers". I described that kind of thing to the AI and just assumed it would find some "passably" comfortable dress shoes, ones that weren't COMPLETELY unconfortable, but this was a great surprise.
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Reviewed in the United States on November 6, 2025
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Kunte Kinte
Lake Worth, US
★★★★★ 4
Great look and fit
Size: 10, Color: Brown
Great shoes at a great price. Very comfortable.
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Reviewed in the United States on March 7, 2026
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San Leandro, US
★★★★★ 5
Stylish and Very Comfortable
Size: 9.5, Color: Black
I really liked the design—looks great and feels premium. The insole is very comfortable, soft, and “cloud-like,” making it easy to wear for long periods without discomfort. Definitely a great choice for both style and comfort. ⭐️⭐️⭐️⭐️⭐️
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Reviewed in the United States on April 21, 2026
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E.G. W.
Birmingham, US
★★★★★ 5
Must Have Shoe
Size: 12, Color: Brown
Great look shoe, comfortable and a good price. I like this shoe so much I ordered a 2nd pair.
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Reviewed in the United States on June 7, 2026

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