ISUZU Leaf Spring Center Bolt 12×220mm High-Strength Steel OEM Standard for NPR NKR CXZ FVR
Price:
Negotiable
MOQ:
20 PCS
Delivery Time:
5-8 Work Days
Brand:
YIMI
Product Description
ISUZU Leaf Spring Center Bolt 1-51356211-0 1513562110 for NPR NKR CXZ — 12×220mm OEM Standard
Product Overview
The ISUZU Leaf Spring Center Bolt with OEM numbers 1-51356211-0 / 1513562110 is a precision-engineered replacement designed for ISUZU NPR, NKR, CXZ, and FVR series trucks. This critical suspension component aligns and secures individual leaf spring leaves at the center position, ensuring the integrity and load-carrying capacity of the leaf spring assembly.
Part Number Note: This product number is 1-51356211-0 / 1513562110. Associated numbers include 1513562150 and 1-51356-120-0. Also known as Leaf Spring Center Pin. Brands include IZUMI and BZLP. Specifiions: 12×220mm.
Working Principle
The leaf spring center bolt is a critical fastening component installed at the center position through all leaf spring leaves:
- Alignment: Passes through center holes of all leaf spring leaves for precise longitudinal and lateral alignment
- Load Transfer: Binds leaf spring leaves together to function as a single unit for load carrying
- Mounting Loion: Positions the leaf spring assembly on the axle spring seat for correct suspension installation
- Prevention of Misalignment: Prevents relative movement between leaf spring leaves during vehicle operation
Failure Symptoms
| Symptom | Probable Cause |
|---|---|
| Noticeable vehicle lean or uneven ride height | Broken or loose center bolt; leaf spring misalignment |
| "Clunking" metallic noise from chassis on rough roads | Loose or broken center bolt; relative movement between spring leaves |
| Visual inspection shows bent, cracked, or severely rusted bolt | Material fatigue or corrosion from long-term use |
| Visible misalignment between leaf spring leaves | Center bolt failure; unable to maintain spring leaf alignment |
| Reduced load capacity; suspension feels noticeably softer | Center bolt failure; leaf spring cannot function as unified assembly |
Product Specifiions
| Part Number | 1-51356211-0 1513562110 |
| Product Name | Leaf Spring Center Bolt |
| Car Model | NPR NKR |
| Engine Model | CXZ |
| Condition | 100% Brand New |
| Size | 12×220mm Standard |
| Material | High-strength steel construction (Grade 12.9) |
| Origin | China Mainland |
Vehicle Compatibility
| Brand | Model Series | Chassis | Notes |
|---|---|---|---|
| ISUZU | NPR | NPR | Light/medium-duty truck |
| ISUZU | NKR | NKR | Light-duty truck |
| ISUZU | NHR | NHR | Light-duty truck |
| ISUZU | 100P | 100P | Light-duty truck |
| ISUZU | ELF | ELF | Light-duty truck |
| ISUZU | CXZ | CXZ | Heavy-duty truck |
| ISUZU | CVR | CVR | Heavy-duty truck |
| ISUZU | FVR | FVR | Heavy-duty truck |
| ISUZU | FVZ | FVZ | Heavy-duty truck |
| ISUZU | Giga | — | Heavy-duty truck series |
Extended Compatibility: This product fits ISUZU All Diesel Engines. Other sources indie compatibility with HINO, MITSUBISHI, TOYOTA, JAC, NISSAN models.
Features & Benefits
12×220mm Precision Dimensions
Ensures precise fitment with leaf spring leaves for reliable alignment and fixation
Ensures precise fitment with leaf spring leaves for reliable alignment and fixation
High-Strength Steel Construction (Grade 12.9)
Excellent tensile strength and fatigue resistance for long-term reliable operation
Excellent tensile strength and fatigue resistance for long-term reliable operation
IZUMI Brand Professional Supply
18–20 years experience with mature production systems and extensive industry network
18–20 years experience with mature production systems and extensive industry network
100% Factory Quality Inspection
Every piece undergoes strict quality inspection for zero-defect delivery
Every piece undergoes strict quality inspection for zero-defect delivery
At Least 1-Year Warranty
Reliable after-sales protection with quality guarantee
Reliable after-sales protection with quality guarantee
Broad Vehicle Compatibility
Fits multiple ISUZU models with all diesel engines
Fits multiple ISUZU models with all diesel engines
Quality Control
| QC Item | Inspection Method | Acceptance Criterion |
|---|---|---|
| Bolt diameter | Micrometer / Calipers | 12mm ± tolerance |
| Bolt length | Height gauge / Calipers | 220mm ± tolerance |
| Thread size & precision | Thread gauge | Per standard thread specifiion |
| Material composition | Spectrometer | Per high-strength steel standard |
| Bolt hardness | Rockwell/Vickers tester | Per Grade 12.9 standard |
| Tensile strength | Universal tensile testing machine | Per Grade 12.9 standard |
| Surface anti-corrosion | Salt spray test | Per anti-corrosion standard |
| Visual inspection | Visual | No cracks, burrs, or rust |
Installation Guidelines
IMPORTANT SAFETY NOTICE: The leaf spring center bolt is a critical suspension component that directly affects vehicle load capacity and driving safety. Replacement requires leaf spring disassembly — a complex operation involving heavy components. Professional installation is recommended.
Installation Steps
- Preparation: Confirm installation position and part number. Prepare socket wrench, torque wrench, jack + safety stands
- Removing Old Center Bolt: Park vehicle securely, support axle, remove U-bolts and leaf spring assembly
- Installing New Center Bolt: Clean surfaces, align spring leaves, insert new center bolt, install nut and torque to specifiion
- Post-Installation Checks: Confirm torque specifiions, check suspension height and balance, perform road test
Packaging & Supply
| Packaging | Neutral Carton |
| Brand | IZUMI / BZLP |
| Place of Origin | China |
| Minimum Order Quantity | Typically 5 pieces/model |
| Delivery Time | 7–30 days |
| Supply Capacity | 10000 sets/month |
| Warranty | At least 1 year |
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Get in Touch
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Company
Yimi (Guangzhou) Automotive Parts Co, Ltd
Location
Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
Contact Person
James