IATF 16949:2016 Certified
Coil Spring Insulator (HM1789) is a high-quality coil spring insulator engineered for Chrysler, Dodge. Manufactured by Ningbo Chilong Bearing Technology Co., Ltd., an IATF 16949 certified facility, this component is built to meet or exceed original equipment specifications using advanced rubber-to-metal bonding technology.
Coil Spring Insulator (HM1789) is a high-quality coil spring insulator engineered for automotive suspension systems. Manufactured by Ningbo Chilong Bearing Technology Co., Ltd., an IATF 16949 certified facility, this component is built to meet or exceed original equipment specifications.
As an IATF 16949 certified manufacturer, Chilong ensures every coil spring insulator meets rigorous quality standards. Our components are manufactured using advanced rubber-to-metal bonding technology, providing durable, long-lasting performance in demanding automotive applications.
This HM1789 replaces or corresponds to the following OEM part numbers:
| OEM Part Number | Description |
|---|---|
| 903977 | Coil Spring Insulator |
| 4582772 | Coil Spring Insulator |
This coil spring insulator (HM1789) fits the following vehicle models:
1993 - 1997 F U
1993 - 1997 F U
1994-1997 F U
1994-1997 F U
1993-1997 F U
1993-1997 F U
Premium rubber compound minimizes coil spring noise and vibration transmission.
Durable rubber formulation resists weathering, ozone, and road chemicals.
Precision molded to match original equipment specifications exactly.
Engineered for durability and consistent performance over extended use.
| Parameter | Specification |
|---|---|
| Rubber Material | Natural Rubber (NR) / EPDM |
| Rubber Hardness | Shore A 60 - 75 (customizable) |
| Working Temperature | -40°C ~ +120°C |
| Tensile Strength | ≥ 12 MPa |
| Elongation at Break | ≥ 350% |
| Compression Set | ≤ 30% @ 70°C / 24h |
| Ozone Resistance | Excellent (anti-ozone grade) |
| Service Life | ≥ 80,000 km |
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