Clutch Kit 23820-63JA0 for Chevrolet, Alpha, Opel

Overview of the 23820-63JA0 Clutch Kit

A clutch kit is the practical way to replace a clutch. On the 23820-63JA0 kit the cover, disc and bearing are matched to each other and to the original flywheel pattern, so the pedal feel and torque capacity stay as designed.

Every unit is checked against the original dimensions before packing. The interfaces are what decide service life, and they are measured on every batch.

Specification Summary

• Pressure plate with matched clamp load
• Friction disc with the original spline count
• Release bearing included
• Alignment tool supplied where required

Reference Numbers and Cross References

Match the unit by any of these numbers:

• 3000990207
• 93317724
• 55579530
• 5679333
• 23820-63JA0
• 90523765
• 71747899
• 679344
• 1606511
• 24423459
• 24436442
• 55498116
• 5666017
• 5679332
• 664262
• 666130

Application Notes

The kit fits Chevrolet, Alpha, Opel applications. Confirm the diameter, spline count and release type before ordering, and check the flywheel at the same time.

Fitment follows the assembly, not the badge. Two vehicles of the same model year can use different parts, so check the number on the old unit.

Failure Modes

Heat ties the three parts together. An overheated clutch loses clamp load and glazes the lining at the same time, so the assembly as a whole stops holding torque.

Installation errors account for most early failures: a scored flywheel, a dry spline or bolts tightened in the wrong order.

Fault Symptoms

• Clutch slip under load
• Judder when pulling away
• Noise when the pedal is pressed
• High or low bite point
• Burning smell after hill starts

Checking Before Replacement

Check the flywheel for cracks, hot spots and wear steps. Machine or replace it as required before fitting the kit.

Inspect the mating surfaces and the fasteners before assembly. Most early failures trace back to something that was not renewed alongside.

Installation Notes

Clean the flywheel, align the disc with the tool supplied, fit the cover and torque the bolts in a cross pattern. Fit the new bearing, check pedal free play, then bed the clutch in gently for the first few hundred kilometres.

Related Parts to Check at the Same Time

• Flywheel
• Release fork and guide sleeve
• Spigot bearing
• Clutch cable or release cylinder

Quality Control and Supply

Hejian Nuojin Auto Parts Co., Ltd. inspects dimensions, materials and interfaces on every batch, then packs the parts in neutral cartons. Each unit carries a one-year warranty against manufacturing defects.

Frequently Asked Questions

Why did the original part fail?

Wear, heat and misalignment account for most failures. Correct installation and matching numbers prevent a repeat.

Is a warranty included?

Yes, one year against manufacturing defects, with neutral packing for resale.

How do I confirm the part number?

Read the number from the old unit, not from a catalogue illustration. Compare the key dimensions at the same time.

Can I fit this without special tools?

Most of these parts fit with standard hand tools. A pulley needs a spline holding tool, and a clutch needs an alignment tool.

Installation Steps •  Preliminary Preparation: Disconnect the negative terminal of the battery, lift the vehicle with a lift and secure it properly to ensure safety. Prepare tools such as socket wrenches, torque wrenches, and the new Chevrolet clutch kit.  •  Removal of Relevant Components: Depending on the model, remove components connected to the transmission such as the half-shaft or drive shaft. Then, remove the bolts at the connection between the engine and the transmission housing, including auxiliary devices like the shift mechanism. After that, remove the transmission to expose the clutch.Removing the old clutch assembly: Use a tool to secure the clutch flywheel, check the assembly marks between the clutch cover and the flywheel, and if there are none, pre-mark them. Then, loosen and remove the bolts connecting the clutch cover and the flywheel in a diagonal order, and take off the old clutch disc, pressure plate, and release bearing.  Installing the new clutch kit •  First, install the pilot bearing, ensuring it is properly seated.  •  Assemble the release sleeve, release bearing, fork, return spring, and other accessories in sequence, and apply basic grease to each pivot point, bearing surface, and the release bearing.  •  Install the new clutch disc onto the flywheel, noting that the side with the damper disc should face the pressure plate.  •  Use a pilot aligner or transmission input shaft for centering, install the pressure plate in the specified position, and tighten the pressure plate bolts sequentially in a diagonal pattern, with a tightening torque generally of 25Nm.Restore other components: Reinstall the gearbox onto the engine, connect components such as the half-shafts or drive shafts properly, and ensure the connections are secure.  •  Adjustment and testing: Adjust the installation position of the clutch release fork shaft transmission arm so that the distance from the fixed cable nut bracket is between 195mm and 205mm, then adjust the free travel of the clutch pedal to 15mm to 25mm. Finally, connect the negative pole of the battery, start the vehicle, and check if the clutch can work normally.

PrecautionsMark Alignment: The alignment marks of the clutch cover, pressure plate, and diaphragm spring must be aligned to ensure installation accuracy.Part Cleaning and Lubrication: Clean components such as the flywheel surface and transmission input shaft before installation to ensure there is no oil stain or impurity. Meanwhile, lubricate the parts that need lubrication, such as the release bearing.Bolt Tightening Torque: Bolts such as the pressure plate bolts and release bearing locking bolts must be tightened according to the specified torque. The locking torque of the release bearing is 15Nm to avoid faults caused by improper bolt tightening torque.Correct Installation Direction: The installation direction of the clutch disc must not be wrong; otherwise, it will affect the normal operation of the clutch.

References：The content you provided about the installation of Chevrolet clutch kits is mainly sourced from automotive-related websites such as Autohome and Pacific Auto Network. Among them, the content regarding the replacement steps and installation precautions for the Chevrolet Cruze clutch disc, such as "The alignment marks of the clutch cover, pressure plate, and diaphragm spring should be aligned", "When installing the clutch driven disc, the side with the damper disc should face the pressure plate", and "The pressure plate bolts should be tightened sequentially in a diagonal pattern with a torque of 25Nm", are all mentioned in articles such as "Chevrolet Cruze Clutch Replacement Tutorial, How to Install Cruze Clutch" on Autohome and "Chevrolet Cruze Clutch Replacement Tutorial, How to Install Cruze Clutch_Pacific Auto" on Pacific Auto Network.