Description
The Monroe 65139 is a Gas-Magnum 65 shock absorber engineered for Class 6-8 heavy-duty Freightliner trucks. Gas-charged, large-bore design specifically for air spring and taper leaf suspensions, delivering the fast response and consistent damping control essential for today’s commercial truck suspensions. The nitrogen gas charge reduces aeration and shock fade while the extra-large 1-3/4″ bore handles the demands of high mileage and severe service.
Signs You Need a New Shock Absorber
- Excessive bouncing or nose-diving during braking
- Poor handling and reduced steering response
- Uneven or cupped tire wear patterns
- Visible oil leaking from the shock body
- Harsh ride quality or bottoming out over bumps
Specifications
| Manufacturer | Monroe |
|---|---|
| Part Number | 65139 |
| Series | Gas-Magnum 65 |
| Part Type | Shock Absorber, Twin-Tube Gas-Charged |
| Bore Size | 1-3/4″ (44.5mm) |
| Reserve Tube | 2-3/8″ |
| Extended Length | 22.75″ |
| Compressed Length | 14.5″ |
| Travel | 8.25″ |
| Upper Mount | Loop Bushing – 3/4″ ID x 2-5/16″ OAL (LS86) |
| Lower Mount | Loop Bushing – 3/4″ ID x 2-5/16″ OAL (LS86) |
| Gas Charge | Nitrogen |
| Dust Shield | Yes (Metal) |
Cross References
This part replaces or is equivalent to the following part numbers:
- Freightliner: 1012703000, 1012704000, 1013021000, 1013063000, 1013211000, 1013634000, 1618455000, 471700002726
- Gabriel: 85918, 89449
- Meritor: M85918, M89449
- Volvo/White/GMC: SA5918, RCSA5918
- Sachs: 311229, 315390, 315601, 315617, 315623, 410026, 471700003920
- Haldex: SA65139
- Automann: A85918
- Road Choice: SA5918
- KYB: 341615, 341618
- NAPA: 65139
- Bulldog HD: HD1215-0024
- Alliance: ABPN32O900003, ABPN32O900077
- Also known as: SSA-85918, SSA-89449, F347225, F347261, 8180135, 8180171, 9180143
Applications
This shock absorber fits the following Freightliner conventional trucks:
- Freightliner Century Class 112/120 (1996–2010)
- Freightliner Classic 120 / Classic XL 132 (1990–2010)
- Freightliner Columbia 112/120 (2001–2010)
- Freightliner Coronado 132 (2003–2014); Coronado new style (2010–2016)
- Freightliner FLC112 (1985–2001), FLD112 (1991–2007), FLD120 (1988–2011), FLC120 (1981–1991)
- Freightliner Argosy (1999–2015)
- Sterling Truck AT9513 (1999–2001)
- Thomas Built Buses chassis
Sold individually — replace shocks in pairs. Verify suspension type (tapered leaf, flat leaf, or air spring) and length match before ordering. Monroe 65139 and 65148 are similar shocks with minor dimensional differences — confirm extended/compressed lengths.
