The 2008 Kenworth T170 has 4 electrical parts with verified fitment on this page — 2 part types and 2 brands, covering the 6.7L L6 DIESEL Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2008 Kenworth T170, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. All 4 listed parts are Speed Sensor (3 parts) and Alternator / Generator (1 part).
The 2008 Kenworth T170 came with a single engine, the 6.7L L6 DIESEL Turbocharged, and every part is verified against it.
2 brands supply electrical parts for the 2008 Kenworth T170, led by DORMAN (3 parts) and TERREPOWER (1 part).
Each part number listed for the 2008 Kenworth T170 opens a page with every vehicle that part fits.
Alternator / Generator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TERREPOWER | 90014516 | 🇺🇸 US 🇨🇦 CA | RemanufacturedDoes Not Include Pulley | View on Amazon |
This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator.
This group shows a single part: TERREPOWER 90014516.
Speed Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 5055407 | 🇺🇸 US 🇨🇦 CA | with Eaton Transmissionwith External Tone Ring | View on Amazon |
| DORMAN | 5055408 | 🇺🇸 US 🇨🇦 CA | with Eaton Transmissionwith External Tone Ring | View on Amazon |
| DORMAN | 5055406 | 🇺🇸 US 🇨🇦 CA | with Eaton Transmissionwith Internal Tone Ring | View on Amazon |
This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor.
DORMAN supplies the 3 Speed Sensor parts for the 2008 Kenworth T170.
This group includes DORMAN 5055407, DORMAN 5055408 and DORMAN 5055406.
Buying Electrical Parts for a 2008 Kenworth T170
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- Confirm you have the 6.7L L6 DIESEL Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Speed Sensor and Alternator / Generator .
Frequently Asked Questions
How many electrical parts fit the 2008 Kenworth T170?
Our catalog currently lists 4 electrical parts for the 2008 Kenworth T170 across 2 subcategories and 2 brands, covering the 6.7L L6 DIESEL Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 2008 Kenworth T170?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2008 Kenworth T170 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2008 Kenworth T170?
Every part on this page is matched to the 6.7L L6 DIESEL Turbocharged engine. Then test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2008 Kenworth T170
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.