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Product Description
Optimize your vehicle’s performance with RNTICO’s high-performance Bolster Spring, an OEM-quality custom bolster spring, and a critical rubber-metal bonded spring designed for the suspension systems of heavy-duty trucks and construction machinery. As a key rubber spring for suspension, it features variable stiffness, allowing it to intelligently adapt to changing load conditions.
As a trusted manufacturer, RNTICO specializes in producing a wide range of heavy-duty truck suspension components, including custom rubber pads, shock absorption solutions, hollow springs, and circular or square rubber springs. We utilize advanced compounds and CHEMLOK® adhesive to ensure an unbreakable bond between rubber and metal, delivering reliable and durable performance across all our suspension products.
Typical Product Dimensions
Please refer to the drawing for complete dimensional specifications.
Key Benefits of RNTICO Bolster Spring
- Superior Ride Comfort: Ensures a smooth and stable ride, whether your vehicle is fully loaded or empty, significantly reducing driver fatigue.
- Enhanced Durability: Protects the integrity of vehicle components and cargo, thereby extending the service life of the entire suspension system.
- OE-Quality Assurance: The product quality meets the OE part quality level for uncompromising performance and longevity.
OE Numbers of Bolster Springs
| BRAND | OEM NO. |
| VOLVO | 1629553, 20390836, 1089501, 1609657, 1577873, 8151413, 1622982 |
| MERCEDES BENZ | 0003250596, 0003250796, 0003241208, 0003250896, 0003250696, 0003241308, 0003250496 |
| MAN | 81962100554, 81962100547, 81962100555, 81962100548 |
| RENAULT | 5010130653, 7420390836 |
| DAF | 1699564, 1779767 |
| IVECO | 93193214 |
| NISSAN | 21441219, 52228-45321, 55241-9Z00C |
| HOWO | AZ9725520278 |
| HYUNDAI | 55131-7M501, 55131-7L500 |
| HENDRICKSON | 60879-000L, 49377-000 |
FAQ For RNTICO Bolster Spring
It’s a type of shock-absorbing part made of rubber-to-metal bonded by high-strength adhesive. It mainly applies to the suspension system of heavy-duty trucks, trailers, and construction machinery. It serves as a secondary support, vibration reduction, and buffer.
The leaf spring is the main load-bearing and elastic element in the suspension system, while the bolster spring typically acts as a secondary spring.
It intervenes when the leaf spring reaches a certain compression stroke, working together to provide extra support and damping, effectively preventing “bottoming out” and improving ride smoothness when empty or fully loaded.
RNTICO products are widely applied to major brands of heavy-duty trucks, such as Volvo, Mercedes-Benz, and Scania, as well as various types of trailers and construction machinery. Please refer to our OE number comparison table for details.
The most accurate method is to check the OE number (part number) on the original vehicle part and compare it with the OE number of RNTICO (e.g., VOLVO 1629553). You can also contact us to verify the assembly dimensions and product appearance.
RNTICO uses a self-designed high-strength rubber compound with excellent fatigue and aging resistance.
Most importantly, we use advanced Chemlok adhesive to ensure a tight and lasting bond between the rubber and metal, preventing product failure due to bonding failure or other issues.
Yes, as a professional rubber product manufacturer, we can customize production based on your samples, drawings, or technical requirements. Please feel free to contact us, and the engineer will be at your service.
Feel free to send your detailed requirements to our sales email: sales@rntico.com. You can also reach us via WhatsApp at +86-18149510829. Our technical team will help you pick or design the right product.
