Description
Monroe 65148 is a Gas-Magnum 65 large-bore (1-3/4 in) twin-tube shock absorber for Class 6–8 heavy-duty trucks, designed as the front shock for Freightliner Cascadia, Columbia, Coronado, M2, and Western Star 4900-series trucks built with tapered or flat leaf front suspensions. The 22.75 in extended length nitrogen-charged design directly replaces Gabriel 85918/85958, Meritor M85918, Sachs 315390, and Freightliner 1013809000 OE shocks.
Signs You Need a New Shock Absorber
- Excessive front-end bouncing or pogoing over road imperfections
- Nose-dive under braking or harsh ride over bumps
- Cupped or scalloped tire wear on the front axle
- Visible oil leakage from the shock body
- Increased stopping distance or reduced steering response
Specifications
| Manufacturer | Monroe |
|---|---|
| Part Number | 65148 |
| Product Line | Gas-Magnum 65 |
| Part Type | Shock Absorber (Front) |
| Construction | Twin-tube, nitrogen gas-charged |
| Bore Diameter | 1-3/4 in (44.5 mm) |
| Reserve Tube | 2-3/8 in |
| Extended Length | 22.75 in (578 mm) |
| Compressed Length | 14.625 in (372 mm) |
| Travel | 8.125 in |
| Upper Mount | Loop bushing — 3/4 in sleeve ID × 2-5/16 in OAL |
| Lower Mount | Loop bushing — 3/4 in sleeve ID × 2-5/16 in OAL |
| Shaft Diameter | 18 mm |
| Dust Shield | Metal |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner: 1012396000, 1012703000, 1013211000, 1013634000, 1013684000, 1013809000
- Western Star: 1013809000
- Sterling: 1013684000
- Gabriel: 85918, 85958, 89449, 671945
- Meritor: M85918, M85920, M85958, M89449
- Sachs: 311229, 315390, 315601, 315617, 315623, 410026
- KYB: 341615, 341618
- Volvo / White / GMC: SA5918, RCSA5918
- Haldex: SA65139
- NAPA: 65148
- FCS: F347225, F347261
- Bulldog HD: HD12150025
Applications
This shock absorber fits the front axle of the following trucks:
- Freightliner Cascadia (2008–2020)
- Freightliner Columbia (2001–2020)
- Freightliner Coronado (2001–2020)
- Freightliner Century Class, Classic, Classic XL (2001–2011)
- Freightliner M2 112 (2003–2023), M2 (2009–2019)
- Freightliner 108SD, 114SD (2012–2024), 122SD (2013–2023)
- Freightliner FLD120, FLD112, FLC120, FLC112
- Western Star 4900EX, 4900FA, 4900SA (2008–2020)
- Western Star 4700SB, 4800SB, 4800SF, 5700XE
- Sterling AT9513 (1999–2001)
Sold individually; replace shocks in pairs for balanced handling. Verify your suspension type (tapered leaf, flat leaf, or air spring) and front axle weight rating before ordering. Measure center-to-center between bushing eyes if comparing to a worn shock.
