Top Gear Shaft Pilot Bearing 1-09800257-1 1-87610158-0 For ISUZU CXZ51 VC46 6UZ1 6WF1

The Top Gear Shaft Pilot Bearing (OEM Numbers: 1-09800257-1 / 1-87610158-0 / 1098002571 / 1876101580) is a premium-quality, direct replacement transmission bearing designed specifically for ISUZU CXZ51 and VC46 series heavy-duty trucks equipped with 6UZ1 and 6WF1 diesel engines.

Pilot bearing supports and aligns the top gear shaft / transmission input shaft, reducing friction and vibration for smooth gear engagement in ISUZU CXZ51 and VC46 heavy trucks.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• Precision-Ground Raceways: Ensures smooth rotation, low friction, and quiet operation
• High Load Capacity: Handles radial loads and vibration from heavy-duty diesel drivetrains
• Durable Bearing Steel: Hardened chrome steel resists wear, fatigue, and deformation
• Accurate Shaft Alignment: Maintains proper centering between transmission input shaft and crankshaft
• Restores Smooth Shifting: Eliminates pilot bearing noise, clutch drag, and gear engagement problems
• Contamination Resistant: Shielded or sealed design helps retain grease and block debris
• Direct Replacement: Matches OE bearing dimensions, tolerances, and fitment
• Long Service Life: Engineered for commercial truck duty cycles and extended service intervals
• Essential Driveline Component: Critical for protecting the transmission, clutch, and input shaft

This top gear shaft pilot bearing is specifically designed for ISUZU heavy-duty trucks and commercial vehicles. Common applications include:

• ISUZU CXZ51 (Heavy-Duty Trucks)
• ISUZU VC46 (Heavy-Duty Trucks)
• ISUZU CV, CX, CY series (as applicable)
• ISUZU 6UZ1 Engine Specifications: 6-Cylinder, Inline Diesel for heavy-duty trucks and industrial use
• ISUZU 6WF1 Engine Specifications: V10, Diesel for heavy-duty trucks, construction, and industrial use
• Also compatible with various ISUZU models using the same pilot bearing configuration

Professional mechanic or transmission specialist installation recommended:

1. Ensure vehicle is safely supported - Use appropriate jack stands or a lift
2. Disconnect battery - Always disconnect the negative terminal before working
3. Remove the transmission - Support the transmission and remove it from the vehicle
4. Remove the clutch assembly - Remove the clutch pressure plate and disc to access the pilot bearing
5. Remove the old pilot bearing - Use a pilot bearing puller or slide hammer; avoid damaging the bore
6. Clean the bore - Thoroughly clean the bearing bore in the crankshaft / flywheel or shaft
7. Inspect related components - Check input shaft, flywheel bore, clutch, and release bearing for wear
8. Install the new pilot bearing - Press the bearing evenly into the bore using a proper bearing driver until fully seated
9. Lubricate as specified - Apply a small amount of high-temperature grease if required by OE procedure
10. Reinstall the clutch - Install the clutch disc and pressure plate; align with a clutch alignment tool
11. Reinstall the transmission - Carefully reinstall the transmission and secure all mounting bolts
12. Check clutch operation - Verify proper clutch pedal feel and release function
13. Road test - Test drive to verify smooth shifting and no abnormal noise or vibration

• Material Verification: Confirms bearing steel composition and hardness meet ISUZU specifications
• Dimensional Inspection: Inner diameter, outer diameter, width, and chamfer dimensions verified within OEM tolerances
• Hardness Testing: Raceway and rolling element hardness tested for proper wear resistance
• Rotational Torque Testing: Bearing smoothness and torque verified for low friction and noise
• Visual Inspection: 100% checked for cracks, rust, or manufacturing defects
• Packaged Safely: Protected with anti-rust oil and packaged to prevent damage during transit

• Neutral export packing or customized packaging available
• Carton or wooden case for safe transportation
• Fast delivery for stock items
• Shipping by Express Air or Sea