8-97042245-0 OEM Fit Spring Bracket 3.1 kg Compact Design High-Strength Metal Construction Leaf Spring Bracket for ISUZU NPR 700P

The Rear Spring Bracket (Front Side) with OEM numbers 8-97042245-0 and 8970422450 is a verified direct-fit replacement for ISUZU NPR 700P / NQR71 / NQR75 series trucks. This bracket is a core load-bearing and positioning component of the rear suspension system, mounted on the rear section of the chassis frame. It securely fastens the front eye of the rear leaf spring to the frame while withstanding the vehicle's rear vertical load, longitudinal forces during braking and acceleration, and lateral forces during cornering.

The leaf spring bracket is a rigid transition element connecting the leaf spring to the chassis frame. The front end of the rear leaf spring is attached to the frame through the bracket eye pin or fixed shackle, and the bracket distributes the various composite loads from the spring to the frame side rail. The 8-97042245-0 bracket is typically manufactured from high-strength steel or cast iron, providing sufficient compressive, bending, and fatigue strength to withstand the demanding conditions of commercial trucks under full loads, rough roads, and frequent stop-start operation. This part is often used in combination with 8-98243605-0 as a "front/rear bracket" pair, corresponding to the front and rear mounting points of the spring.

Replace the bracket when any of these symptoms appear:

• Abnormal noise or metallic clunking from the rear suspension — worn mounting holes or a cracked bracket create clearance between the leaf spring and frame, causing metal-to-metal contact.
• Leaf spring misalignment or shifting — a worn or deformed bracket prevents the leaf spring from maintaining its correct position, affecting rear suspension geometry and vehicle tracking.
• Vehicle pulling to one side or abnormal rear axle alignment — bracket failure causes uneven rear suspension height, leading to steering pull and abnormal tire wear.
• Visible cracks or breakage on the bracket — long-term high-load operation causes fatigue cracks in the metal, potentially leading to complete fracture.
• Worn or elongated bracket mounting holes — loose mounting bolts or hole wear prevents the bracket from being securely fastened.
• Abnormal rear tire wear — suspension geometry deviation changes rear wheel alignment parameters, causing irregular tire wear.

1. Preparation: Raise the vehicle on a hoist. Support the rear axle and suspension system. Relieve leaf spring tension.
2. Removal: Remove the U-bolts. Remove the leaf spring. Remove the bracket mounting bolts and withdraw the old bracket.
3. Inspection: Inspect the bracket for cracks, deformation, or mounting hole wear. Inspect the chassis frame side rail mating surface for cracks, deformation, or corrosion. Inspect the leaf spring for cracks or deformation.
4. Installation: Clean the chassis frame side rail mating surface. Install the new bracket onto the chassis frame side rail. Torque the mounting bolts to specification.
5. Leaf Spring Installation: Position the leaf spring onto the bracket. Install the U-bolts and torque the nuts to specification.
6. Final Check: Verify the leaf spring is properly seated and centered. Confirm all fasteners are torqued to specification.
7. Wheel Alignment: Perform a professional wheel alignment to restore correct rear wheel alignment parameters.
8. Road Test: Lower the vehicle and perform a road test to verify proper rear suspension operation and absence of abnormal noise.

• Every 10,000 km: Inspect bracket for cracks or deformation. Check U-bolt torque.
• Every 40,000–50,000 km: Inspect bracket mounting holes for wear. Check leaf spring and bushings.
• Every 100,000 km: Perform magnetic particle inspection (MT) on the bracket. Replace worn bushings and pins.
• When abnormal rear suspension noise or pulling is detected: Inspect bracket and suspension system immediately.
• At any rear suspension service: Always inspect the bracket and replace if any abnormality is found.

• Standard Packaging: Anti-rust oil + VCI film + neutral carton.
• Custom Packaging: Neutral box, color box, or customer-branded packaging.
• Suitable For: Truck suspension repair shops, ISUZU parts distributors, fleet maintenance centers.
• Supply Capacity: Stable batch supply with batch-level quality reports available.
• MOQ: Small quantities accepted (quantity discounts available).