Genuine Mase IS2.5 50Hz Generator Drive Belt 70807
MAS70807
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Mase IS2.5 50Hz Generator Drive Belt
Genuine service part 70807
Genuine Mase drive belt listed in the engine-alternator parts documentation for 50 Hz IS2.5 / IS2500 marine generator configurations. It forms part of the generator drive arrangement between the specified pulleys.
Key Features
- Genuine Mase service belt
- Documented for IS2.5 / IS2500 50 Hz configurations
- Direct reference 70807 in the engine-alternator exploded parts list
- Frequency-specific selection
- One belt supplied
Technical Specs
| Part type | Generator drive belt |
| Generator family | Mase IS2.5 / IS2500 |
| Frequency | 50 Hz application |
| Mase part number | 70807 |
| 4Boats SKU | MAS70807 |
| Quantity | 1 belt |
Compatibility / Fitment Guide
Verified configuration:
| Generator model | Mase IS2.5 / IS2500 engine-alternator assembly whose parts list specifies 70807. |
| Electrical frequency | 50 Hz version. |
| Pulley relationship | Must use the 50 Hz pulley/drive configuration shown in the Mase exploded diagram. |
| 60 Hz exclusion | The corresponding documentation lists belt 70863 for the 60 Hz version; do not interchange without an official supersession. |
| Serial check | Confirm the generator data plate, serial number and parts-manual revision before ordering. |
If the generator has been converted or rebuilt, verify the installed pulleys and alternator configuration rather than relying only on the enclosure label.
Part Number Cross Reference
| Mase 50 Hz belt | 70807 |
| Mase 60 Hz belt | 70863 — different part, not supplied |
| 4Boats SKU | MAS70807 |
Frequently Asked Questions
Does this fit a 60 Hz IS2.5?
No. Mase parts documentation lists 70863 for the 60 Hz configuration.
Is this genuine Mase?
The existing supply record identifies it as a genuine Mase service part.
Does it fit other Mase models?
Only where their official parts list also specifies 70807; this listing verifies IS2.5/IS2500 50 Hz.
What is included?
One generator drive belt.
Isolate starting power before service and set belt alignment and tension according to the exact Mase manual.
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