OEM 4.0M X 4 Enidine Adjustable Hydraulic Shock Absorber, M115 x 2.0 Thread, 100 mm Stroke
Sku#: OEM 4.0M X 4
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The Enidine OEM 4.0M X 4 is an adjustable hydraulic shock absorber with an M115 x 2.0 mounting thread and 4.00 in (100 mm) stroke.
Enidine OEM Large Bore Series adjustable hydraulic shock absorbers: turning the adjustment knob changes the damping force to suit varying or undefined input conditions. OEM Large Series shock absorbers are fully field repairable.
Specifications:
| Manufacturer: | Enidine |
| Model: | OEM 4.0M X 4 |
| Enidine part number: | MF3721 |
| Series: | OEM Large Bore |
| Type: | Adjustable hydraulic shock absorber |
| Mounting thread: | M115 x 2.0 |
| Stroke: | 4.0 in (100 mm) |
| Optimal velocity range: | 12-170 in/s (0.3-4.3 m/s) |
| Max. energy per cycle: | 68,000 in-lbs/cycle (7 700 Nm/cycle) |
| Max. energy per hour: | 16,000,000 in-lbs/hour (1 808 000 Nm/hour) |
| Max. reaction force: | 25,000 lbs (111 000 N) |
| Nominal coil spring force, extended: | 35 lbs (155 N) |
| Nominal coil spring force, compressed: | 65 lbs (290 N) |
| Max. propelling force: | 4,800 lbs (21 000 N) |
| Weight: | 40.0 lbs (18.2 kg) |
- All shock absorbers will function satisfactorily at 5% of their maximum rated energy per cycle. If less than 5%, a smaller model should be specified.
Source: Enidine 2026 price list; ratings from the Enidine shock absorber catalogue (p.31).

