Overview
The Edge EAS daily driver and tow kit with EGT starter cable, part number 98609, adds exhaust gas temperature monitoring to Edge CS/CS2 and CTS/CTS2 units. EGT, or exhaust gas temperature, is measured by a probe that helps show whether added power is creating excessive heat that could damage the engine.
The kit suits daily diesel driving and towing. Towing can put a lot of strain on a truck and make it run hot, so the kit gives drivers a way to watch exhaust temperatures before an overheated truck is left at the roadside. The Edge Accessory System (EAS) is an expandable platform, and a user can connect multiple EGT sensors to compare readings in different locations.
The kit works only with the CS/CS2 and CTS/CTS2 product lines. Because the EAS lets several accessories daisy-chain to one of those units, the same device can display dozens of parameters.
Key features
- EGT probe monitors exhaust gas temperature
- Suited to daily diesel driving and towing
- Edge Accessory System (EAS) supports daisy-chained accessories
- Multiple EGT sensors can compare readings at different locations
- Works with CS/CS2 and CTS/CTS2 product lines
- Part number 98609 and UPC 810115011446
Reading exhaust temperature
Exhaust gas temperature is most useful as a trend. A reading that climbs steadily under load, or that stays high after the truck has been run hard, is a reason to back off the throttle and let the engine cool. Towing uphill or at highway speed places more demand on the engine, so checking temperatures during long grades shows when the load is becoming too much for the setup.
The probe position matters. Placing it too close to the turbo or a manifold outlet can show readings that differ from the cylinder head, so compare results from the same location each time. When several sensors are connected, comparing them can reveal uneven fueling or a restricted exhaust path. Keep probe wiring clear of hot surfaces and secure it so it does not chafe during travel.
- Log readings on long tows for comparison
- Recheck the probe connection after the first drive
Specifications
| Brand | Edge |
|---|---|
| Part number | 98609 |
| UPC | 810115011446 |
| Kit type | Daily driver and tow kit with EGT starter cable |
| Sensor | EGT probe |
| Compatible product lines | CS/CS2 and CTS/CTS2 |
| Accessory system | Edge Accessory System (EAS) |
| Fitment type | Universal fit |
Vehicle fitment
It is universal fit, so compatibility depends on the Edge unit rather than a year, make or model. The kit works only with CS/CS2 and CTS/CTS2 product lines.
No specific vehicle fitment is listed. Check that your Edge unit is a CS/CS2 or CTS/CTS2 before fitting the kit.
Installation notes
Multiple accessories connect daisy-chain style through the EAS, so plan the order of connections before fitting. Check the wiring route and connection steps against your installation before starting.
What’s included
It is a daily driver and tow kit with an EGT starter cable. Check the package contents against your installation before starting.
Not included: A compatible Edge CS/CS2 or CTS/CTS2 unit is required, because the kit works only with those product lines.









