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  See more parts for Toyota Corolla
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ACL Toyota 4AGE/4AGZE 1.6L 0.025mm Oversized High Performance Rod Bearing Set - 4B1780H-.025
ACL Toyota 4AGE/4AGZE 1.6L 0.025mm Oversized High Performance Rod Bearing Set - 4B1780H-.025 - Image 2 ACL Toyota 4AGE/4AGZE 1.6L 0.025mm Oversized High Performance Rod Bearing Set - 4B1780H-.025 - Image 2

If you're looking to push your engine to the limits, these ACL Race Series Engine Bearings are worth checking out. They’re crafted with a unique blend of design and metallurgy that really shines when you're revving high. Whether you're working on a 4, 6, or 8-cylinder setup, these bearings are designed to handle the heat and stress of high RPMs without flinching.

What makes them stand out?

  • First off, the high-strength overlay plate is thinner than what you usually find, which means it’s better at handling fatigue. That’s crucial when you're pushing your engine hard.
  • All the rod bearings come with hardened steel backs. This isn’t just for show; it helps keep the bearing lining in place and ensures it stays put in the housing.
  • They’ve upped the crush on these bearings, which means they fit snugly and hold their ground better, reducing the chances of slippage.
  • Forget about flash plating on the back—this design boosts heat transfer and locks the bearings in tight with the housing. Trust me, that’s a big deal when things get hot under the hood.
  • With increased eccentricity, these bearings compensate for any bore distortion at high RPMs, helping to form those all-important hydrodynamic oil films.
  • The 3/4 grooved main bearings optimize the load-carrying surface area and improve oil flow to the conrod bearings. This is where the magic happens.
  • They also keep tight, consistent wall tolerances, so you can maintain clearances without worrying about unexpected gaps.
  • And if you’re using performance crankshafts, the enlarged ID chamfers on the edges will accommodate those larger fillet radii without a hitch.

Specifications:

  • Size options: STD, .025, .25, .50
  • Oil Clearance: + Standard
  • Half Type: Identical Halves
  • Material: Tri-metal with hardened steel backs
  • Min Std Shaft Size: 1.6529 in / 41.985 mm
  • Max Std Shaft Size: 1.6535 in / 42 mm
  • Min Std Tunnel Size: 1.7717 in / 45 mm
  • Max Std Tunnel Size: 1.7726 in / 45.024 mm
  • Max Wall at Crown: 0.0585 in / 1.487 mm
  • Max Overall Length: 0.6732 in / 17.1 mm

Fitment:

  • Toyota Corolla (1983-2019)
  • Toyota MR2 (1984-1999) - Specifically, the 4B1780H-.025 ACL Toyota 4AGE/4AGZE (1.6L) 0.025mm Oversized High-Performance Rod Bearing Set.

So if you're gearing up for a rebuild or just looking to upgrade your performance game, these bearings are a solid choice. They’re built to last and designed to keep your engine running smooth even when you’re pushing it to the max.

Other Part Numbers:
ACL #acl4B1780H-.025

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1983-2019
 Toyota Corolla
1984-1999
 Toyota MR2

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Who is ACL?

ACL is a company that specializes in manufacturing and distributing high-quality engine bearings that have played a key role in the Australian automotive parts market. 

Based in Launceston, Tasmania, Australia, the company has been in the business for more than 70 years and has become the leading brand when it comes to its market segment.

Throughout the years, ACL has consistently provided top quality products and has become the equipment supplier of multiple Automotive brands such as Lancia, Mazda, Mini, Mitsubishi, Nissan, Peugeot, Subaru, Toyota, Volvo, Suzuki, Renault, SAAB, and more.  ACL also provides a replacement product range used by the aftermarket industry.

The company ensures that it maintains its high level of standard by employing manufacturing processes that are ISO certified. They also use the industry’s most advanced tooling equipment and designing software that allows them to create products that are superior in quality. ACL has been known worldwide to create bearings that are durable, innovative, and precise.

ACL also offers bearing used for high-performance applications. The company has been involved in motorsport racing since the 1960s and has manufactured bearings used in Brabham Formula 1. Today, their products are being used in different racing disciplines such as the Australian Supercar Championship, Drag racing, Driftings, and Rally.

Purchase ACL Bearings at Vivid Racing

Engine Bearings are a critical component of a vehicle and should not be overlooked. If you want to make sure that what you get is something you could rely on, then ACL is the brand for you. With over 200 engine applications, whether it’s an American, Australian, European, or Asian made vehicle, ACL got you covered. Visit Vivid Racing and check out their list of bearings that would fit your specific needs.

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