8-97184699-1 OEM Fit Rear Spring Bracket Bushing ID 16 × OD 40 × L 43 mm Rubber Steel Composite Leaf Spring Bushing for ISUZU NKR5 NPR NQR 700P

Rear Spring Bracket Bushing 8-97184699-1 / 8971846991 for ISUZU NKR5, NPR, NQR and 700P trucks equipped with 4JB1 / 4HK1 engines. Verified OEM fit with dimensions ID 16 × OD 40 × L 43 mm.

This rear spring bracket bushing is a verified direct-fit replacement for ISUZU NKR5 / NPR / NQR / 700P series trucks running 4JB1 / 4HK1 / 4HE1 diesel engines. It is a critical vibration-damping and locating element of the leaf spring suspension system, installed between the leaf spring bracket and the spring eye. Its role is to isolate road vibration, reduce noise, and maintain correct spring centering within the bracket.

The leaf spring bracket bushing is the flexible pivot element connecting the leaf spring to the chassis bracket. It absorbs road impacts and suspension vibration through the elastic deformation of rubber, preventing direct metal-to-metal contact between the spring eye and the bracket. This significantly reduces noise and vibration (NVH) transmitted to the chassis.

The 8-97184699-1 bushing features a rubber-to-steel composite construction: the 16 mm inner diameter accommodates the spring pin, the 40 mm outer diameter is pressed into the bracket bore, and the 43 mm length spans the spring eye width. This bushing is commonly supplied in a half-piece configuration, with two pieces typically required per spring eye.

The 4JB1 is a 2.8L inline-four diesel engine and the 4HK1 is a 5.2L inline-four diesel engine, both widely used in ISUZU NPR / NKR series trucks.

Replace the bracket bushing when any of the following symptoms appear:

• Abnormal noise or metallic clunking from the rear suspension — aged or worn rubber creates clearance between the spring eye and bracket, causing metal-to-metal contact.
• Noticeable vibration or harshness during driving — the bushing loses elasticity and cannot effectively absorb road impacts, transmitting vibration directly to the chassis.
• Leaf spring misalignment or shifting — a worn bushing allows the spring to loosen within the bracket, affecting rear suspension geometry and vehicle tracking.
• Visible cracks, swelling, hardening, or detachment of the rubber — the rubber has aged and failed, requiring replacement.
• Abnormal rear tire wear — suspension geometry deviation changes rear wheel alignment parameters, causing irregular tire wear.
• Abnormal wear on the spring pin or bracket bore — metal-to-metal friction after bushing failure accelerates wear on the pin and bracket bore.

1. 1Preparation: Raise and support the vehicle, relieve leaf spring tension. Clean the bracket and eye mounting area.
2. 2Removal: Remove the spring pin or U-bolts and extract the old bushing using a dedicated puller or press.
3. 3Inspection: Inspect the bracket bore and spring eye for wear, cracks, or deformation. Check the spring pin for wear.
4. 4Installation: Apply rubber grease or soapy water to the bushing surfaces. Press the new bushing into the bracket bore and eye using a dedicated installation tool.
5. 5Reassembly: Install the spring pin and U-bolts, torque to specification.
6. 6Final Check: Verify the leaf spring is correctly positioned in the bracket and the bushing is free from distortion or extrusion.
7. 7Road Test: Lower the vehicle and perform a road test to verify absence of abnormal noise and proper suspension operation.

• Every 10,000 km: Check rear suspension for abnormal noise. Visually inspect bushings for cracks or extrusion.
• Every 40,000–50,000 km: Inspect bushing wear and aging. Replace if necessary.
• Whenever the leaf spring is removed: Always inspect bushings and replace if any abnormality is found.
• When rear suspension noise or vibration is detected: Inspect bushings and spring pins immediately.

• Standard Packaging: Sealed bag + moisture barrier + neutral carton.
• Custom Packaging: Neutral box, color box, or customer-branded packaging.
• Suitable For: Suspension system repair shops, ISUZU parts distributors, fleet maintenance centers.
• Supply Capacity: Stable batch supply with batch-level quality reports available.
• MOQ: 5 PCS