King Engine Bearings BMW N63/S63 Crankshaft Main Bearing Set - Size +0.50mm

King Engine Bearings BMW N63/S63 Crankshaft Main Bearing Set - Size +0.50mm

Marsoni

M251S

$154.90

Get it in 3 business days with 1 day shipping. Friday, May 29

King Engine Bearings BMW N63/S63 Crankshaft Main Bearing Set - Size +0.50mmKing Engine Bearings BMW N63 S63 Crankshaft Main Bearing Set Size +0. 50mmThis Part Fits: Year Make Model Submodel 2011 2016 BMW 550i Base 2010 2015 BMW 550i GT Base 2010 2017 BMW 550i GT xDrive Base 2011 2016 BMW 550i xDrive Base 2012,2014 2018 BMW 650i Base 2014 2019 BMW 650i Gran Coupe Base 2012 2018 BMW 650i xDrive Base 2014 2019 BMW 650i xDrive Gran Coupe Base 2011 2012 BMW 750i ActiveHybrid 2009 2019 BMW 750i Base 2010 2019 BMW 750i xDrive Base

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I was clearing a field full of mesquite trees, and my tractor tires were getting destroyed. Mesquite has nasty 3-inch thorns, and I was plugging tires constantly. Eventually, all four tires were flat at the start of each day. These tires had been plugged more than 10 times each. I bought FlatOut Quick Strike and followed the instructions exactly. The pump dispenses about 1 oz per pump, so I put 30 pumps in each tire, and the bottle was mostly empty by the time I finished. Typical with any pump dispenser it was also difficult to get the last bit out of the bottle using the pump. It’s been a week now. One tire has lost about 1 PSI, but the other three are still holding exactly where I set them. Considering how badly these tires were damaged, I’m impressed so far. This is the first time I’ve gone more than a day without dealing with flats in that field.

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Reviewed in the United States on February 13, 2026

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Duncan Souza

Chelsea, US

★★★★★ 4

Pump is worthless

Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula

The sealant is good. The gallon pump is a joke. Pump stopped working 4 pumps in. Went and got another replacement pump from automotive store, also broke after 4 pumps. Ended up cleaning out an old Slime bottle and pouring in the flat out sealant in the slime bottle, so I could actually get it in my tires.

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Reviewed in the United States on May 30, 2026

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Amazon Customer

Dallas, US

★★★★★ 1

There seems to be a chronic problem with the provided dispensing pump.

Size: 1 Gallon + Tool, Set name: Off-Road Formula

I looked at online reviews of the product performance and was impressed by its purported ability seal tire punctures. While the product may (or may not) perform well, the provided dispensing pump is pathetically unsuited for the application and it is impossible to clear the pump once the material clogs the small dispensing port. Some of the reviews indicated this but i assumed that they were not very mechanical inclined customers. The product, by design, has particulates, of varying sizes, suspended in the liquid sealant. The port on pump is very small and easily becomes blocked with the sealant and particulates that cannot be cleared; even when following the instructions to do so. It is very irresponsible for the manufacturer to continue selling this item with inevitable relative failure of the pump as this is the only way to get the sealant into a tire.

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Reviewed in the United States on January 2, 2025

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Natrona Heights, US

★★★★★ 5

Good for ebike tires

Size: 1 Gallon + Tool, Set name: Small Tire/Bicycle Formula

Got it for my son’s older ebike that my wife rides now. He kept on popping tubes, maybe because of his weight. Anyhow, I fixed it up for my wife and put some FlatOut in it to prevent flats. Seems to work so far. Got the off road FlatOut for my ebike’s fat tires. Easy to add to the tires. The pump clogs up but it’s easy to clean. I will always add this to all tires moving forward!

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Reviewed in the United States on April 4, 2026

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Brian ward

Lexington, US

★★★★★ 5

Easy to use and works great

Size: 1 Gallon + Tool, Set name: Off-Road Formula

Easy to use

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Reviewed in the United States on April 22, 2026