Upper Main Bearing Red

CFMoto Upper Main Plain Bearing - Red (Single)

Part Number: 0NYV-011003-1000-Q0-00001 (Upper)

🔧 Upper Main Bearing · Engine Internal · Crankshaft Bearings

OEM quality · Sold individually · Ensures smooth crankshaft operation

This is a genuine CFMoto Upper Main Plain Bearing - Red, part number 0NYV-011003-1000-Q0-00001. Main bearings are among the most critical precision components in an engine. They are installed in the crankshaft main bearing saddles to support the crankshaft, bearing the immense impact and rotational loads from piston movement, ensuring smooth crankshaft operation. This product features a red color code, indicating a specific size grade. This direct replacement upper main bearing is used to replace a worn or damaged original upper main bearing, restoring engine precision and performance, and preventing noise and engine failure caused by excessive clearance. Mainly compatible with CFMoto SSV and UTV models equipped with 380Y-2A and 380Y-3 engines.

This Upper Main Bearing fits the following CFMoto models:

• OEM OE Quality: Manufactured strictly to original specifications, ensuring wall thickness accuracy, oil groove geometry, and material properties identical to the original part.
• High-Quality Alloy Material: Made from high-strength, fatigue-resistant copper-lead or aluminum-tin alloy with a wear-resistant overlay, offering excellent load capacity and wear performance.
• Precision Machined: Inner diameter precision machined to ensure proper clearance with the crankshaft journal as per design specifications.
• Color Coded: Red identification indicates a specific size grade, allowing technicians to select the correct bearing based on measurements during overhaul.
• Sold Individually: Can be purchased separately as needed, providing flexible options for repairs.
• Direct Replacement: Perfect bolt-in fit when installed according to the factory service manual, ensuring proper engine rebuild quality.

🛑 Importance of Main Bearings

Main bearings are among the most critical precision components in an engine. They support the crankshaft, bearing the immense impact and rotational loads generated by the pistons. An oil film between the main bearings and crankshaft journals provides hydrodynamic lubrication. If main bearings become worn, scored, or suffer from overlay spalling, clearance increases, oil pressure drops, noise develops, and in severe cases, "bearing seizure" can occur, destroying the crankshaft and engine block. Therefore, during engine overhaul, precise measurement of crankshaft journals and selection of the correct grade of genuine main bearings with proper installation clearance are essential. Timely replacement with this genuine-quality main bearing is critical to restoring your CFMoto engine's performance and extending its life after an overhaul.

⚠️ Fitment Note: This product is the Upper Main Bearing - Red. It primarily fits Z10 series SSV models with the 380Y-2A engine and UForce 1000 series UTV models with the 380Y-3 engine. Before ordering, always verify your engine model and main bearing size grade to ensure the correct color specification.