ACL® Bearings 4B1946H-STD - Race™ Racing Connecting Rod Bearing Set
SKU: 56822070820

ACL® Bearings 4B1946H-STD - Race™ Racing Connecting Rod Bearing Set

Sale price$56.66 Regular price$62.95
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Description

ACL® Bearings 4B1946H-STD - Race™ Racing Connecting Rod Bearing SetEngine Fitment: B16A, B17A1, B18A, B18A1, B18B1, B18B2, B20A (SOHC), B20B, B20Z, F18B, F20B. Race Connecting Rod Bearing Set (4B1946H STD) by ACL. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Race Series engine bearings. ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are

Engine Fitment:

B16A, B17A1, B18A, B18A1, B18B1, B18B2, B20A (SOHC), B20B, B20Z, F18B, F20B.

Race™ Connecting Rod Bearing Set (4B1946H-STD) by ACL®. The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Race Series engine bearings. ACL Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville - from sport compact drift racing to small block NASCAR, IHRA and NHRA cmpetitions. The unique combination of design, metallurgy and engineering provides Race Series performance bearings witht he endurance and capability to perform where others cannot.

Specifications:

Size: Standard
Min Shaft Size: 1.7709"
Max Shaft Size: 1.7717"
Min Tunnel Size: 1.8898"
Max Tunnel Size: 1.8907"
Max Wall Size: 0.0592"
Max Overall Length: 0.768"
Oil Clearance Size: Standard
Quantity: 8 Pieces
Half Type: Identical Halves

Features:

  • High strength overlay plate with reduced thickness for improved fatigue properties
  • Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing
  • Increased crush for improved bearing retention
  • Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing
  • Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films
  • 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings
  • Tight consistent wall tolerances to help you maintain consistent clearances
  • Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts

ACL® Race Series performance engine bearings are recognized as a premier brand throughout the motorsports world. Race Series rod and main bearings are standard components in race engines that have set records and won championships from Mexico to Bonneville - from sport compact drift racing to small block NASCAR, IHRA, and NHRA cmpetitions. The unique combination of design, metallurgy, and engineering provides Race Series performance bearings with the endurance and capability to perform where others cannot. These exceptional bearings are available for a variety of American, Asian, and European performance engines.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 56822070820

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Riley
Carnegie, US
★★★★★ 3
Decent budget option, difficult to adjust once set up
Color: Black, Size: Width up to 13.4''
Not bad and serves it's purpose. There are better options for a few more bucks, but this one is holding very well for the price.
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Reviewed in the United States on January 6, 2026
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Isaac
Waukegan, US
★★★★★ 5
IT HOLDS!
Color: Black, Size: Width up to 13.4''
Heavy duty set. My desktop weighs about 60lbs, and I’m surprised how well it’s being held. I’ve always had my desktop on top of my desk. But it feels so much more roomier not having it on top of my desk. On top of that during this cold weather it’s like having a heater under my desk. Of course my desktop is gaming wise. But if you are someone with just a standard browsing desktop then it shouldn’t be hot down there. Make sure your desk is real wood or thick metal. If it’s an ikea table and the basic kind where it looks like wood, but it’s actually cardboard inside then for sure it’s gonna snap off, and that wouldn’t be pc mounts problem, rather a desk type issue.
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Reviewed in the United States on January 30, 2026
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Verified Purchase
harlin
Charlottesville, US
★★★★★ 5
Great product
My package was stolen a d they provided a replacement right away!! Great support and good product love it
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Reviewed in the United States on May 15, 2026
R
Ryan Y.
Cuba, US
★★★★★ 5
Heavy-Duty Solution for Large Towers — Rock Solid
This CPU holder is exactly what I needed to reclaim my desktop workspace. I wanted to get the computer off the desk to clear up room for projects, but I didn't want to put it on the floor where it’s susceptible to static and pet hair. This mount keeps the tower tucked away under the desk but still within easy reach. Build Quality & Weight: The unit is impressively well-built with sturdy steel. While the specs state it can hold up to 44 lbs, my current build is closer to 20 lbs, and it handles it with zero flex or wobble. It feels very secure once locked in. Design & Airflow: One of the best benefits I’ve noticed is the noise reduction. Having the case mounted under the desk surface helps shield the sound of the fans, creating a quieter workspace. The open-frame design is also great for airflow and keeps all the ports easily accessible. It’s highly adjustable (width 7.7” to 11.8” and height 20” to 25.8”), so it should fit almost any full-size case. Installation Tip: Installation was straightforward, though I’d recommend measuring your desk thickness first to ensure it can support the weight. If you’re looking for a solid, full-size PC holder to keep your system off the floor, this is a great choice. It feels like a professional-grade mount that will last through several different builds.
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Reviewed in the United States on April 7, 2026
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Richard
Waukegan, US
★★★★★ 4
Great way to keep your PC off the floor, especially with a standing desk
This mount is a great solution if you want to get your desktop tower off the floor and clean up the space around your desk. The construction feels very solid and once installed it holds the PC securely without any wobble. I like that the frame is adjustable so it can fit different case sizes, and the open design allows for good airflow while still supporting the case well. It is especially helpful if you have a standing desk. Keeping the tower mounted under the desk means all of the cables move with the desk when it raises or lowers, which makes everything much cleaner and easier to manage. Installation takes a little planning to line things up correctly, but once it is mounted it feels very secure. If you want a cleaner workspace and a better setup for a standing desk, this mount works really well.
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Reviewed in the United States on March 14, 2026

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