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ISUZU U-Bolt 1-87870295-1 1878702951 for FR FVR Truck — 273mm OEM Standard Suspension Component
ISUZU Leaf Spring U-Bolt 1-87870295-1 1878702951 Compatible with FR FVR Series Truck — High-Strength Steel OEM Standard Suspension Fastener
Product Overview: The ISUZU Steel U Shape Screw Bolt (U-Bolt) with OEM numbers 1-87870295-1 / 1878702951 is a precision-engineered replacement designed for ISUZU FR series trucks. This component is a critical fastening part of the vehicle's suspension system — the U-BOLT SET; FRT — responsible for securely fixing the leaf spring to the axle housing.
Numbering Note: This product number is 1-87870295-1 / 1878702951. Same-series numbers include 1-87870295-0 / 1878702950, 8-94132358-2, and 8-94461227-3. It is also compatible with ISUZU FVR11, FVR14 models. Please verify the specific number based on actual vehicle configuration.
Working Principle
The leaf spring U-bolt is a critical fastening component of the suspension system, installed between the axle and the leaf spring. Its working principle includes:
Secure Connection: The U-bolt passes over the leaf spring, with both ends passing through the axle spring seat and secured with nuts.
Load Transfer: Transfers vehicle load from the frame through the leaf spring to the axle, and transmits road impacts from the wheels to the suspension.
Positioning: Ensures the leaf spring maintains correct position during vehicle operation, preventing relative movement between spring leaves.
Locking Design: Used with nuts and washers to prevent loosening under long-term vibration conditions.
Failure Symptoms
⚠️ Inspect immediately if any of these occur:
Symptom
Probable Cause
"Clunking" metallic noise from chassis on rough roads
Loose or broken U-bolt; loose leaf spring-to-axle connection
Uneven ride height or vehicle leaning to one side
Loose U-bolt causing leaf spring displacement
Visual inspection shows bent, cracked, or severely rusted bolt
Material fatigue or corrosion from long-term use
Visible misalignment between leaf spring leaves
Failed U-bolt; unable to maintain spring leaf alignment
Loose U-bolt preventing proper leaf spring function
Technical Specifiions
Length
273mm (L=273) — industry-verified standard specifiion for ISUZU FR series
Material Standard
High-Strength Steel — excellent tensile strength and fatigue resistance
Part Name
U-BOLT SET; FRT (Front Leaf Spring U-Bolt Set)
Unit Net Weight
1,060g (approx. 1.06kg)
HS Code
731815190 — international classifiion for bolts
Parts Figure Number
450-208 — for quick technician reference
Brand
BZLP brand, ISO/TS16949 certified
Place of Origin
China
Vehicle Compatibility
Brand
Model Series
Years
Notes
ISUZU
FR
—
Truck series
ISUZU
FVR11
Pre-2003
Heavy-duty truck
ISUZU
FVR14
Pre-2003
Heavy-duty truck
ISUZU
FVR900, FVR950
Pre-2003
Heavy-duty truck
ISUZU
FVR33
Pre-2003
Heavy-duty truck
Important Fitment Warnings:
Number Confirmation: This product number is 1-87870295-1 / 1878702951. Same-series numbers include 1-87870295-0 and 8-94132358-2. Verify the specific number on the original part before ordering.
Installation Torque: Refer to ISUZU factory workshop manual for U-bolt nut torque specifiions. Cross-tightening with a torque wrench is mandatory.
Re-torque After Installation: U-bolts must be re-checked and re-tightened 7–10 days after installation to ensure proper leaf spring seating.
Associated Components: When replacing U-bolts, it is recommended to inspect leaf spring leaves, center bolt, and shock absorbers — replace if necessary.
Pair Replacement Recommended: Replace in pairs (left and right) when servicing both sides of the same axle.
Professional Installation: U-bolts are critical suspension safety components — professional installation is recommended.
Features & Benefits
273mm Precision Length
Ensures precise fitment with leaf spring and axle for reliable suspension fastening — suitable for ISUZU FR/FVR series truck appliions.
High-Strength Steel Construction
Excellent tensile strength and fatigue resistance for long-term reliable operation under heavy-load conditions — engineered for ISUZU truck suspension appliions.
ISO/TS16949 Quality Management Certified
Internationally recognized automotive industry quality standard — ensures full-process quality control.
BZLP Brand Professional Supply
20 years of ISUZU auto parts experience with over 400 supplier network — provides global customers with reliable automotive parts solutions.
100% Factory Quality Inspection
Every piece undergoes strict quality inspection — 100% tested before delivery.
At Least 1-Year Warranty
Reliable after-sales protection — at least 1 year quality guarantee.
Packaging & Supply
Packaging
Neutral packaging or customized per customer request
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
