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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £3.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: SM1657
At 228 mm across dimension A and threaded to M20, SM1657 is the largest mounting in the Silent Marine range, engineered to carry the highest loads within the family while maintaining effective vibration isolation for marine propulsion engines and general engine installations. Its rubber-to-metal bonded construction gives the mount structural integrity under sustained dynamic loading, and the failsafe arrangement ensures the assembly retains mechanical security even in demanding service conditions. The mount operates in shear, compression, or a combination of both, giving engineers flexibility in how it is oriented within an engine bed or machinery frame. Rubber-to-metal bonding throughout the construction eliminates the need for secondary retention components and delivers consistent performance across its load range. The mount improves machinery lifespan, protects surrounding structures from vibration-borne stress, and contributes to operator comfort in crewed vessels and vehicles. With full dimensions of A: 228 mm, B: 70 mm, C: 114 mm, D: 182 mm, F: 18 mm, G: 35 mm, J: 25 mm, S: 5 mm, and thread size M20, SM1657 is suited to heavier propulsion and auxiliary engine applications across marine, power generation, construction and off-highway, agriculture, railway and mass transit, automotive, and military and defence industries. Custom options, including stainless steel metalwork and oil-resistant or high-temperature rubbers. Are available on request. The Silent Marine range includes smaller variants for lighter and medium load duties: SM1600 and SM1609.
About PartsForMachines:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Overall length / diameter A (mm) | 228 |
|---|---|
| Width / dimension B (mm) | 70 |
| Height / dimension C (mm) | 114 |
| Outer diameter D (mm) | 182 |
| Fixing hole / dimension F (mm) | 18 |
| Thread / stud size M | M20 |
| Fixing hole spacing G (mm) | 35 |
| Dimension J (mm) | 25 |
| Plate / metal thickness S (mm) | 5 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £3.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | SM1600 | SM1600-45 | SM1600-55 | SM1600-65 | SM1609 |
| Type | Engine Mount | Engine Mount | Engine Mount | Engine Mount | Engine Mount |
| Size | 120mm | 183mm | |||
| Deflection | 4 | 4 | 4 | ||
| Overall Height | 38.5mm | 38.5mm | 38.5mm | ||
| Size Range | 101-200mm | 101-200mm | |||
| Thread | M12 | M12 | M12 | M12 | M16 |
A. SM1657 has the following dimensions: A: 228 mm, B: 70 mm, C: 114 mm, D: 182 mm, F: 18 mm, G: 35 mm, J: 25 mm, S: 5 mm, with a thread size of M20.
A. SM1657 is a marine engine mount originally designed for marine propulsion engines. It is also suitable for general engine mounting applications across marine, power generation, construction and off-highway, agriculture, railway and mass transit, automotive, and military and defence industries.
A. The mount uses rubber-to-metal bonded construction and can be loaded in shear, compression, or a combination of both. This arrangement isolates vibration between the engine and surrounding structure, improving machinery lifespan, protecting adjacent structures, and improving operator comfort.
A. The failsafe arrangement means the mount retains mechanical security and structural integrity even if the rubber element were to degrade, providing an additional layer of safety in marine and general engine mounting applications.
A. SM1657 is the largest mount in the Silent Marine range, with a 228 mm A dimension and M20 thread. Smaller variants for lighter and medium load applications are available as SM1600 and SM1609.
A. Yes. Stainless steel metalwork and oil-resistant or high-temperature rubbers are available on request, along with additional and custom sizes.
A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase. Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN).
A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
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