High-elasticity Rubber Engine Mounting Cushion OEM 1-53225278-4 for ISUZU FSR Rear LH Vibration Damper

The Engine Mounting Cushion with OEM numbers 1-53225278-4 / 1532252784 is a verified direct-fit replacement for ISUZU FSR, FVR, and FRR series trucks equipped with 6HH1, 6HE1, and 6HL1 diesel engines. This critical vibration-damping component is installed at the rear left-hand (LH) position between the engine and frame to absorb and isolate engine vibration and torque, ensuring stable engine operation and improved driving comfort.

• Fitment Verified: Fits ISUZU FSR, FVR, FRR chassis with engine codes 6HH1 / 6HE1 / 6HL1, for Rear LH mounting position — confirmed via OEM parts catalog cross-reference.
• OEM Cross-Reference Verified: Replaces OEM numbers 1-53225-278-4 / 1-53225-278-3 / 1-53225-278-2 / 1-53225-278-1 / 1-53225-280-4 / 1-53225-314-1.
• Material Verified: High-elasticity rubber, oil-resistant and aging-resistant, suitable for engine bay high-temperature and vibration environment — based on supplier material test records.
• Quality System Certified: ISO/TS16949 certified — based on supplier qualification documents.
• 100% Factory Inspection: Every unit undergoes full visual and dimensional inspection before shipment — based on supplier QC process.

Immediate inspection required if any of the following symptoms are present:

• Noticeable knocking or metal-to-metal impact noise from engine bay at idle or acceleration, especially from the left side
• Increased vibration in steering wheel, seat, and cab floor, especially at specific RPM ranges
• Excessive engine fore-aft movement, increased shock during gear shifts or hard acceleration
• Visible rubber cracking, deformation, delamination, or separation from metal bracket
• Engine position shift causing abnormal belt/hose wear or loosened connections