Synthetic Rubber Front Spring U-Bolt Rubber Cushion 105 mm Height for Vibration Damping in ISUZU NKR NHR NPR
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NKR NHR
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Material: | Synthetic Rubber | OEM Part Number: | 8-94150265-0 / 8941502650 |
| Height: | 105 Mm | Weight: | 0.3 Kg |
| Color: | Black | Engine Compatibility: | 4JB1 (2.8L, 4-cylinder, OHV, DI) |
| Position: | Front Axle — U-Bolt Clamp | Function: | Vibration Damping And Noise Isolation |
| High Light: | Synthetic Rubber Front Spring U-Bolt Rubber Cushion,105 mm Height Leaf Spring Damping Pad,Vibration Damping U-Bolt Clamp Rubber Cushion |
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Product Description
ISUZU NKR NHR Front Spring U-Bolt Rubber Cushion 8-94150265-0 OEM Fit
Front Spring U-Bolt Clamp Rubber Cushion 8-94150265-0 8941502650 for ISUZU NKR NHR NPR 4JB1 — Verified OEM Fit Leaf Spring Damping Pad
Product Overview
The Front Spring U-Bolt Clamp Rubber Cushion with OEM numbers 8-94150265-0 and 8941502650 is a verified direct-fit replacement for ISUZU NKR / NHR / NPR light trucks equipped with the 4JB1 diesel engine. This rubber cushion is a critical vibration-damping component of the front leaf spring suspension system, installed between the U-bolt clamp and the leaf spring pack to absorb road shock, reduce noise, and prevent metal-to-metal contact.
Working Principle
The front spring U-bolt clamp rubber cushion serves as the flexible interface between the U-bolt clamp and the leaf spring assembly. It absorbs vertical vibrations and impact forces generated by road irregularities, preventing direct metal contact between the U-bolt clamp and the leaf spring. This rubber pad maintains proper clamping force distribution across the leaf spring pack while isolating the suspension system from the chassis frame. The synthetic rubber construction provides controlled compression under load, ensuring the leaf spring can articulate smoothly while the U-bolt maintains secure clamping force. The ISUZU NKR/NHR front suspension uses two rubber cushions per side (one at each U-bolt position), and these cushions are among the most frequently replaced wear items in these vehicles.
Failure Symptoms
Replace the rubber cushion when any of these symptoms appear:
- Clunking or knocking noise from the front suspension — worn or perished rubber allows the U-bolt clamp to contact the leaf spring directly, causing metal-to-metal noise.
- Excessive front suspension vibration — degraded rubber loses its damping capability, transmitting road shock directly to the chassis and cabin.
- Visible cracks, swelling, or hardening of the rubber — indicates the cushion has aged and lost its elastic properties.
- U-bolt clamp loosening — deteriorated rubber reduces clamping force distribution, allowing the U-bolt to lose torque.
- Uneven or accelerated front tire wear — misaligned suspension geometry from worn cushions causes irregular tire wear patterns.
Critical Inspection Note: ISUZU service manuals require that when the leaf spring assembly is removed or the U-bolt is loosened, all rubber cushions must be inspected for wear, cracks, or deterioration and replaced if any abnormality is found. Cushions should be replaced in pairs (both sides of the front axle) to maintain balanced suspension performance.
Product Specifications
| Verification Item | Data / Standard | Source / Method |
|---|---|---|
| Part Number (Short) | 8-94150265-0 | ISUZU OEM Parts Database |
| Part Number (Long) | 8941502650 | ISUZU OEM Parts Database |
| Part Name | RUBBER; CLAMP, U-BOLT, FRT SPR | ISUZU EPC |
| Vehicle Models | ISUZU NKR / NHR / NPR | ISUZU application catalog |
| Engine Compatibility | 4JB1 (2.8L, 4-cylinder, OHV, DI) | ISUZU application catalog |
| Height | 105 mm | Product specification |
| Weight (per unit) | 0.3 kg | Product specification |
| Material | Synthetic Rubber | Material certificate |
| Color | Black | Product specification |
| Position | Front Axle — U-Bolt Clamp | Product specification |
| Function | Vibration damping and noise isolation | Product specification |
| Packaging | Neutral Box / Color Box / Customer Brand | Product specification |
| Warranty | 12 Months | Manufacturer standard |
| Installation Success Rate | ≥ 99% | Based on repair order tracking |
| Certification | ISO/TS 16949 | Third-party system audit |
Vehicle Compatibility
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| ISUZU | ELF | NKR55 | 4JB1 | 1986–2007 |
| ISUZU | ELF | NHR54 | 4JB1 | 1984–1990 |
| ISUZU | NPR | NPR | 4JB1 | 1986–2007 |
| ISUZU | NKR | NKR | 4JB1 | 1986–2007 |
| ISUZU | NHR | NHR54 | 4JB1 | 1984–1990 |
| ISUZU | NPR | NPR59 | 4JB1 | 1986–1993 |
Important Fitment Notes:
- This rubber cushion is designed for the front axle U-bolt clamp application. Confirm the dimensions of your original cushion before ordering.
- The ISUZU NKR/NHR front suspension uses two rubber cushions per side (one at each U-bolt position). Verify the required quantity before ordering.
- Cushions should be replaced in pairs (both sides of the front axle) to maintain balanced suspension performance.
- For right-hand drive (RHD) vehicles, verify clearance and orientation. Refer to the ISUZU workshop manual for the correct procedure.
Features & Benefits
High-Quality Synthetic Rubber Compound
Excellent vibration damping and shock absorption for reduced NVH — verified by material certificate and functional testing.
105 mm Height / 0.3 kg Weight
Precision-matched to ISUZU NKR/NHR front U-bolt clamp — direct drop-in fit without modification — verified by dimensional inspection.
U-Bolt Clamp Protection
Prevents metal-to-metal contact between the U-bolt clamp and leaf spring — verified by functional testing.
Complete Pair Availability
Cushions supplied in pairs for balanced suspension performance — verified by kit contents inspection.
ISO/TS 16949 Quality System
Full traceability with material certificates and batch inspection reports — third-party certified.
Installation Success Rate ≥ 99%
Based on repair order tracking — confirms reliable fitment across the NKR/NHR platform.
Installation Guidelines
IMPORTANT: Suspension system service must be performed by a qualified technician. Always support the vehicle on a hoist and relieve spring tension before loosening U-bolt nuts. Never reuse old rubber cushions.
Reference ISUZU Workshop Manual:
- Preparation: Raise the vehicle on a hoist. Support the front axle independently to relieve tension on the leaf springs.
- Removal: Remove the U-bolt nuts and washers. Remove the U-bolt clamp and take out the old rubber cushion.
- Inspection: Inspect the U-bolt for wear, thread damage, or corrosion. Inspect the leaf spring for cracks or deformation. Inspect the axle housing seat for wear.
- Installation: Place the new rubber cushion between the U-bolt clamp and the leaf spring. Install the U-bolt clamp over the cushion.
- Assembly: Install the U-bolt, washers, and nuts. Ensure the cushion is properly seated and centered.
- Torque Sequence: Tighten U-bolt nuts in a diagonal sequence. First stage: tighten to 25 N·m (18 lb ft). Second stage: tighten to 110 N·m (81 lb ft) or as specified in the ISUZU workshop manual.
- Final Check: Verify the cushion is properly seated and the U-bolt is secure.
- Road Test: Lower the vehicle and perform a road test to verify suspension operation and noise levels.
Recommended Torque Values:
| Fastener | Torque |
|---|---|
| U-Bolt Nuts (Stage 1) | 25 N·m (18 lb ft) |
| U-Bolt Nuts (Stage 2) | 110 N·m (81 lb ft) |
| Spring to Bracket Nuts | 95 N·m (70 lb ft) |
Maintenance Schedule
- Every 10,000 km: Inspect rubber cushions for cracks, swelling, or hardening. Check U-bolt torque.
- Every 40,000–50,000 km: Inspect leaf spring assembly and U-bolt cushions. Replace cushions if wear or deterioration is found.
- Whenever the U-bolt is loosened: Always inspect cushions and replace if any abnormality is detected.
- When abnormal noise is detected: Inspect cushions immediately. Replace in pairs.
Packaging & Supply
- Standard Packaging: Sealed bag + moisture barrier + carton.
- Custom Packaging: Neutral box, color box, or customer-branded packaging.
- Suitable For: Suspension repair shops, ISUZU parts distributors, fleet maintenance centers.
- Supply Capacity: Stable batch supply with batch-level quality reports available.
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