What is the difference between standard size and undersize bearings?

Standard size bearings are meant for a crankshaft that is in good condition and has not been machined. Undersize bearings are used when the crankshaft has been ground down to remove damage or wear, and they are sized to match that specific amount of material removed.

Do I need to replace my crankshaft when installing these bearings?

Not necessarily. These standard size bearings are designed to be used with a crankshaft that is within factory specifications. If your crankshaft has been damaged or worn beyond its standard size, you would need to have it machined and use undersize bearings instead.

What else should I consider when replacing main bearings?

It's crucial to ensure the crankshaft journals are perfectly clean and free of any debris. You'll also want to check the oil clearance with Plastigage to confirm it's within the manufacturer's specifications before final assembly.

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Trusted Since 1957

Est. 1957

ACL 82-90 Nissan 4 1597-1809-1974cc CA16/18/20 Standard Size Main Bearing Set

Specifications

Brand: ACL
Part #: 5M1633A-STD
UPC: 9315726173688

ACL 82-90 Nissan 4 1597-1809-1974cc CA16/18/20 Standard Size Main Bearing Set

Name: ACL 82-90 Nissan 4 1597-1809-1974cc CA16/18/20 Standard Size Main Bearing Set
Brand: ACL
SKU: acl-acl-82-90-nissan-4-1597-1809-1974cc-ca16-18-20-standard-size-main-bearing-se-t14-78507
Price: 23.24 USD
Availability: BackOrder

$23.24

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1984-1986 Nissan 200SX. ACL standard size main bearing set for CA16/18/20 engines. Essential for engine rebuilds.

Key Features

Fits 1984-1986 Nissan 200SX.
Standard size main bearing set.
Designed for Nissan CA16, CA18, and CA20 engines.
From ACL, a popular name in engine bearings.

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Fits this vehicle

Nissan 200SX 1984-1986

Product Details

Already rebuilt your engine or looking to refresh it? This main bearing set from ACL is the next piece of the puzzle for your 1984-1986 Nissan 200SX with a CA16, CA18, or CA20 engine. Main bearings are critical components that sit between the crankshaft and the engine block, allowing the crankshaft to spin smoothly while supporting its weight. When rebuilding or repairing your engine, replacing these bearings is a fundamental step to ensure proper oil clearance and long-term reliability.

ACL has been a well-known name in engine bearings for a long time, and this set is made to the correct specifications for your Nissan's engine. They are standard size, meaning they are designed to fit a crankshaft that has not been machined undersize. Proper installation, including ensuring the crankshaft journals are clean and within factory tolerances, is key to getting the most out of these bearings. This set is a solid option for anyone looking to get their engine back in top running condition.