Clutch release bearing 8-97089-652-0 44RCT2802，QR512-160210，EBC1044，44RCTS2803 MB949，SZB801，614126， 48TKA3201， 48TKA3202 50TKA3805， 90251210， 58TKZ3701A，14112-49600， FOR Isuzu 1999-2003

Preliminary Preparations

1. Vehicle and Tool Preparation

   Park the vehicle on a flat surface, fully engage the handbrake and disconnect the negative terminal of the battery. Prepare tools such as a jack, socket wrench, special-purpose grease and cleaning rags. Meanwhile, have a new clutch release bearing that matches the specific Isuzu model ready.

2. Removal of Associated Components

   After lifting the vehicle with a jack, it must be secured with supporting stands—relying solely on the jack is strictly prohibited. Subsequently, remove the connecting bolts between the drive shaft and the transmission to take off the drive shaft. Use a dedicated lifting tool to hoist the transmission and place it on wooden blocks, exposing the clutch assembly. Then remove the clutch pressure plate and locate the release bearing situated between the release fork and the pressure plate. For some Isuzu models, it may be necessary to remove parts of the suspension or sub-frame to smoothly take out the relevant components.

Cleaning and Inspection Before Installation

1. Component Cleaning

   Thoroughly clean the installation area of the release bearing (including the transmission input shaft sleeve and the contact surface of the release fork) with a cleaning rag to remove oil stains, metal debris and other impurities, as these can hinder the smooth rotation of the bearing.

2. Component Inspection

   Check that the new release bearing is free of damage and rotates smoothly without jamming. Simultaneously, inspect the clutch release fork for deformation or cracks. If the release fork is damaged, it must be replaced immediately to avoid affecting its fit with the bearing.

Core Installation Operations

1. Applying Grease

   Apply an appropriate amount of clutch-specific high-temperature grease evenly to the inner bore of the new release bearing and the areas that come into contact with the release fork. This ensures sufficient lubrication while preventing excessive grease from leaking out and causing clutch slippage.

2. Precise Installation of the Bearing

   Gently fit the release bearing onto the tubular extension (release sleeve) of the first shaft bearing cover of the transmission. Pay close attention to the correct installation direction—some bearings are marked, and alignment must be done according to these marks. For certain Isuzu models, ensure that the shoulder of the bearing fits closely with the release fork.

3. Connecting the Release Fork and Bearing

   Insert one end of the release fork through the hole in the transmission case and pass it through the protective cover. Secure the release fork to the ball-shaped support using the spring clip on the fork, then firmly fasten the release bearing housing to the release fork with another spring clip. Ensure that the release fork can push the bearing to slide flexibly. For Isuzu models equipped with a clutch balance weight, care should be taken to position the release fork in a way that does not interfere with the subsequent installation of the balance weight.

Component Resetting, Commissioning and Verification

1. Resetting of Assembly Components

   First, install the clutch pressure plate, align it with the mounting holes on the flywheel, and tighten the bolts in a diagonal alternating manner step by step using a torque wrench. Then hoist the transmission back into place, tighten the fixing bolts between the transmission and the frame in the reverse order of removal, reinstall the drive shaft and fasten its bolts securely. Finally, remove the supporting stands and lower the vehicle.

2. Commissioning and Inspection

   Reconnect the negative terminal of the battery. After starting the vehicle, gently press the clutch pedal to check for abnormal noises during the operation of the release bearing. At the same time, confirm that a gap of approximately 3 - 4 millimeters is maintained between the release bearing and the end of the release lever. This ensures smooth engagement and disengagement of the clutch without jamming or incomplete disengagement. If any abnormalities are found, adjust the position of the release fork until all requirements are met.

1. Safe Operation Bottom Lines

• Disconnect the negative battery cable throughout the entire process. Secure the vehicle with support stands (relying solely on a jack is strictly prohibited) to prevent the vehicle from sliding or electrical short circuits during construction.

• Use special tools when removing/hoisting the transmission. Do not pry or strike with brute force to avoid damaging precision components such as the transmission case and input shaft sleeve. Wear gloves during operation to prevent hand scratches or oil contamination.

• For models requiring suspension/sub-frame removal, mark the component positions before disassembly to avoid misalignment during reinstallation.

2. Component Compatibility and Condition Inspection

• The new release bearing must be fully compatible with the clutch assembly model of the vehicle (e.g., D-MAX, Ruimai, etc.). Focus on verifying dimensions, inner diameter, and mounting interface to prevent assembly failure or abnormal operation.

• Inspect the new bearing before installation: it should rotate smoothly without jamming or abnormal noise, with intact seals and no grease shortage or rust. Simultaneously check the release fork for deformation or cracks, and ensure the fork’s spring clip has normal elasticity. Replace any damaged parts immediately.

• Confirm the transmission input shaft sleeve surface is smooth, burr-free, and unworn. Grind away any scratches or rust—otherwise, bearing wear will be accelerated.

3. Key Requirements for Installation Accuracy

• Use clutch-specific high-temperature grease—ordinary butter is prohibited (it fails easily at high temperatures). Apply grease only to the bearing inner bore and fork contact surfaces, in an appropriate and even amount. Excessive grease causes clutch slipping, while insufficient grease intensifies wear.

• Do not reverse the bearing installation direction: the side with markings (e.g., "TO TRANSMISSION") faces the transmission, and the shoulder must fit precisely with the release fork. Poor fit will result in insufficient release travel.

• Ensure a secure connection between the release fork and bearing: the spring clip must be fully engaged to allow the fork to push the bearing smoothly along the input shaft sleeve without jamming or loosening—otherwise, clutch engagement/disengagement will be affected.

• For models with a clutch balance weight, avoid the weight’s position during installation. Strictly prevent interference between the release fork and the balance weight to avoid transmission system resonance.

References：

1. Autohome: Multiple Q&A articles and tutorial contents about the installation of clutch release bearings on this platform have provided basic references. For example, key points such as thoroughly cleaning components before installation, handling them gently to avoid bearing damage, reinstalling components in the reverse order of removal after installation, and testing the working condition of the clutch are highly consistent with the installation procedures and safety operation specifications mentioned earlier.

2. PCauto: The automotive encyclopedia and maintenance - related content on this platform have clarified key parameters such as the installation position and fit clearance of the release bearing. It also mentions adaptability requirements such as matching the outer diameter of the outer sleeve of the transmission first - shaft during installation. This content provides support for the inspection of component adaptability and the requirements for installation accuracy.

3. Bangshou Auto Parts Network: The platform's explanations related to clutch release bearings for models such as the Qingling Isuzu TF Pickup have supplemented installation details suitable for Isuzu models. For instance, it includes model - specific installation specifications such as the shoulder of the release bearing must abut against the release fork after installation, and maintain a 3 - 4mm gap with the end of the release lever.

4. Bearing Encyclopedia: The installation guidelines for automotive clutch release bearings released on it provide universal and professional technical standards for installation. Measures such as avoiding transmitting installation force through rolling elements and the special installation steps for pull - type release bearings have improved the accuracy and operational detail requirements during the installation process.