Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
King Engine Bearings GM Vortex / Gen III IV LS-Series Main Bearing SetKing Engine Bearings presents the GM Vortex Gen III IV LS Series Main Bearing Set, engineered for precision and durability in high performance engines. This premium main bearing set is designed to provide reliable support and enhance the rotational efficiency of your engine's crankshaft. Ideal for enthusiasts and professionals upgrading or rebuilding LS Series V8 engines, these bearings offer excellent wear resistance and optimal oil clearance to keep
King Engine Bearings presents the GM Vortex / Gen III IV LS-Series Main Bearing Set, engineered for precision and durability in high-performance engines. This premium main bearing set is designed to provide reliable support and enhance the rotational efficiency of your engine's crankshaft. Ideal for enthusiasts and professionals upgrading or rebuilding LS-Series V8 engines, these bearings offer excellent wear resistance and optimal oil clearance to keep your engine running smoothly.Manufactured with meticulous attention to quality, King Engine Bearings delivers components that stand up to the demands of tuning, motorsport, and heavy-duty applications. The MB5877SI020 is a trusted choice for performance builds, ensuring consistent protection under high RPM and load conditions.
Whether you are restoring a classic hot rod, building a kit car, or upgrading a muscle car with a GM Vortex or Gen III/IV LS-Series engine, these main bearings are engineered to meet and exceed the expectations of dedicated car enthusiasts. Benefit from King Engine Bearings’ advanced material technology and a trusted fitment that integrates seamlessly with your performance build. Experience hassle-free installation, reduced friction, and enhanced engine longevity with this essential engine component from Tuningsupply, your reliable partner for fast delivery and no hidden costs across Europe.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.3 ★★★★★
Based on 1616 reviews
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Product Reviews
★★★★★ 5
Efficient
Fast and efficient, taking care of my claim
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Reviewed in the United States on February 26, 2026
★★★★★ 1
Be careful purchasing this.
We bought this for an ice-cream maker - they never sent the initial startup you bought this email. So I had to fight with them that yeah we bought it.
Then they classified it as an ice-maker - important for pictures later . Then we had bought the machine and insurance partially with gift cards not a big deal, right? - well, the machine cost $300ish but showed on the receipt total as $180ish - guess which amount they wanted to pay out for? Then they wanted pictures showing serial number and such on the machine. I sent them pictures of each side clearly showing no stickers. Take more pictures of the front and top because what you took wasn't good - MAYBE because you thought it was an ice-maker... Take a picture showing what doesn't work - it will spin and move, but the compressor broke so it won't get cold - NOT GETTING COLD is something I can't show... it was fun being told to take a video showing it not getting cold only to tell them yeah no I am not wasting my time doing that.
There was a lot of repetitive stuff but they did eventually pay out the correct amount. Would I buy it again? Yes. Is it as easy as they make it out to be? No.
Did I WANT to give this review? No, because I didn't want to leave a negative review. I am a very charming, nice, and personable guy that didn't want to be mean. Keep pestering me enough about leave a review about how great we are and you will get the review you probably did not want.
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Reviewed in the United States on November 17, 2023
★★★★★ 5
You can trust ASURION warranties!
ASURION was fantastic as always. Purchased a Nespresso machine for my DIL which she absolutely loved and two months before warranty expired it started leaking which broke her heart. ASURION stood behind their warranty and refunded purchase price which I transferred to my DIL so she could purchase another machine. That’s why I never hesitate to buy their warranty’s and why I love shopping Amazon! Both companies represent their clients well. Thanks to both!
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Reviewed in the United States on November 7, 2025
★★★★★ 5
Quick,immediate action
Very quick refund. I reported the issue, same day reply with instructions on how to return, free postage and as soon as Asurion was notified id dropped off at UPS, within the hour my refund was in my account. A pleasant experience as no waiting period, nothing. I’m able to replace product almost immediately.
Thank you, I’ll be covering all my expensive items with this company. Five stars all around.
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Reviewed in the United States on September 18, 2025
★★★★★ 5
Fast, Easy and Value for Money
Fast and Easy. Value for money. Highly recommended
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Reviewed in the United States on May 5, 2026