Center Bolt Nut 1-09400055-0 1094000550 M10 Leaf Spring Nut For ISUZU Trucks

The Center Bolt Nut (OEM Numbers: 1-09400055-0 / 1094000550) is a premium-quality, direct replacement suspension fastener designed specifically for ISUZU truck models. This M10 steel plate center pin nut secures the leaf spring center bolt to the axle housing, maintaining proper spring alignment and load distribution in ISUZU truck suspension systems.

• OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
• High-Strength Steel Construction: Durable steel material withstands high clamping forces and continuous vibration
• Precision M10 Threads: Exact thread pitch ensures proper engagement with the center bolt
• Anti-Corrosion Coating: Surface treatment resists rust and environmental degradation
• Restores Suspension Integrity: Eliminates leaf spring misalignment caused by loose or worn nuts
• Prevents Axle Movement: Maintains proper spring-to-axle clamping force for safe vehicle operation
• Direct Replacement: Matches OE nut dimensions and thread specification
• Long Service Life: Engineered for heavy-duty commercial truck applications

This center bolt nut is designed for ISUZU trucks and commercial vehicles using M10 leaf spring center bolt configuration:

• ISUZU D-MAX - 2003-2011, 2012+, 4WD and 2WD models
• ISUZU NPR / NQR - Various commercial truck models
• ISUZU TFR / TRS - Select models
• ISUZU I-280 / I-350 - Commercial vehicles

Professional mechanic installation recommended:

1. Ensure vehicle is safely supported using appropriate jack stands or a lift
2. Remove the old nut by unscrewing from the center bolt
3. Inspect the center bolt threads for wear, corrosion, or damage
4. Inspect the leaf spring pack for broken or shifted leaves
5. Clean dirt, rust, or debris from the center bolt threads
6. Apply suitable thread locking compound if recommended
7. Thread the new center bolt nut onto the center bolt by hand
8. Tighten the nut to manufacturer's specified torque using a torque wrench
9. Ensure leaf spring is properly centered on the axle housing
10. Carefully lower the vehicle and remove jack stands
11. Road test to verify no suspension noise or vibration

• Material verification for steel composition and hardness
• Thread inspection for pitch, diameter, and form within OEM tolerances
• Hardness testing for proper strength and wear resistance
• Corrosion resistance testing against moisture and salt
• 100% visual inspection for cracks, defects, or manufacturing flaws
• Protected packaging 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