Description
Monroe Gas-Magnum 65 large-bore heavy-duty shock absorber (P/N 65402) for Class 6-8 truck rear suspensions running an S6 stem upper / L4 loop-bushing lower configuration. Direct replacement for Gabriel 85311, Mack 650402, Peterbilt 03-04629 / 03-07281, Kenworth 680586, and Volvo/White/GMC 3919948. Expanded reserve tube and metal dust shield deliver consistent damping under fade-prone severe-service loads.
Specifications
| Manufacturer | Monroe |
|---|---|
| Series | Gas-Magnum 65 |
| Part Number | 65402 |
| Type | Gas-charged, large-bore heavy-duty shock |
| Extended Length | 24.0625 in (611.2 mm) |
| Compressed Length | 15.0625 in (382.6 mm) |
| Travel | 9.000 in (228.6 mm) |
| Upper Mount | S6 — stem mount, 3-5/16 in stem length, 5/8-11 thread |
| Lower Mount | L4 — loop bushing, 1.00 in ID x 1.75 in OAL |
| Dust Shield | Yes — metal |
| Hydraulic Lockout | Yes |
| Bumper Stops (Compressed / Extended) | No / No |
| Parts Pack | P01482 |
| Approx. Shipping Weight | ~9.3 lb |
Cross References
This shock replaces or is equivalent to the following part numbers:
- Gabriel: 85311
- Meritor: M85311
- Euclid: E85311
- Automann: A85311
- Fleetline: 89424
- Mack: 650402
- Peterbilt: 03-04629, 03-07281, 03-07421, 03-07424
- Kenworth: 680586
- PACCAR: 680241
- Volvo / White / GMC: 3919948
- Alliance (DTNA): ABP N32 O900031, ABP N32 G900031
- Navistar / Fleetrite: 56101Z1030, AMS650402
- BWP: SH65402
- Dallas: D65402
- Flagg: F65402
Applications
This shock is typically installed in rear suspension positions on Class 6-8 highway and severe-service trucks running stem-over-loop shock geometry, including:
- Peterbilt 357, 379, 384, 386, 388, 389, 567, 579 (rear positions on select air-spring and taper/leaf builds)
- Kenworth T660, T680, T800, W900, C500 (rear positions, equivalent suspensions)
- Mack CH, Granite, Pinnacle (rear positions per Mack 650402 listing)
- Volvo VNL, VNM (per Volvo 3919948 listing)
Always verify dimensions, mount style, and the OEM shock number on your VIN / build sheet before ordering. Stem and loop dimensions are the controlling fitment specs — not the truck model alone.
