Description
PAI Industries EDS-8981 aftermarket power steering reservoir dipstick for Mack trucks equipped with the Fleetguard 2-quart power steering reservoir (255730S) — the 6.61 in length dipstick / cap that lets the operator check fluid level at the top of the reservoir. Direct cross to Mack 9424-255721S and 5839-255721S, Fleetguard 255721S.
Signs You Need a New Power Steering Dipstick
- Dipstick handle cracked or broken off in the cap
- Level markings worn off or no longer visible
- Fluid leaking past the O-ring or seal at the cap
- Dipstick bent or damaged, giving inaccurate readings
- Cap will not seat or seal properly in the reservoir neck
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | EDS-8981 |
| Part Type | Power Steering Reservoir Dipstick / Cap |
| Overall Length | 6.61 in |
| Reservoir Compatibility | Fleetguard 2-quart power steering reservoir (255730S) |
| Country of Origin | United States |
| Warranty | 2-year unlimited mileage (Genuine PAI) |
Cross References
This dipstick replaces or is equivalent to the following part numbers:
- Mack: 9424-255721S, 5839-255721S
- Fleetguard: 255721S, 255721
- International / Navistar: 255721S
- PAI Industries: EDS-8981, 8981
- Also known as: 042396
Applications
This dipstick fits Mack trucks equipped with the Fleetguard 2-quart power steering reservoir:
- Mack R-Series
- Mack DM-Series
- Mack RD-Series (early)
- Mack CH-Series (early, pre-1998)
- Mack CL-Series
- Other Mack chassis with Fleetguard 2-qt power steering reservoirs
Later-model Mack CH (1998+), Vision, and Granite trucks use a different dipstick (PAI EDS-8805). Verify the existing dipstick part number and reservoir before ordering.









