Description
Product Overview
The FP271067C turn signal switch is the part that lets you control your truck’s blinkers. Over time, switches wear out from constant use or get sticky from grime and heat, causing inconsistent signals. This replacement switch restores proper functionality so you can safely signal turns and lane changes. It replaces OEM part number P27-1067, making it a direct fit for compatible Peterbilt models.
What the Part Does
The turn signal switch connects your hand movements to the truck’s electrical system, triggering the indicator lights on the exterior. While it seems simple, this switch also often integrates with other functions like high-beam activation or hazard lights. A properly working switch ensures that every flick of the lever results in the expected signal outside, keeping your truck road-legal and your intentions clear to other drivers.
Common Problems This Part Solves
Common issues include:
- Blinkers that don’t activate or cancel properly
- Switch that feels loose or wobbly
- Electrical inconsistencies or lights that flash too fast or slow
- Hazard lights that won’t engage
Any of these issues can be frustrating on the road and even dangerous if other drivers can’t see what you’re doing.
Why Replacement Matters
Failing turn signals are more than an annoyance, because they’re a safety hazard. A worn or failing switch can lead to missed signals, which increases the chance of accidents or traffic violations. Installing a new FP271067C guarantees reliable signaling and restores full control to the driver.
Compatibility and Fitment
This switch is a direct replacement for OEM P27-1067 and is built for specific Peterbilt truck models. Double-check your existing part number to make sure this is the correct replacement. Proper fitment avoids the headaches of mismatched electrical connections or mounting problems.
Installation and Service Notes
Installing the switch usually involves removing the steering column cover and unplugging the old switch. Connect the new unit, mount it properly, and test all functions before finishing. It’s very simple for someone comfortable with basic truck electrical work, but always follow safety precautions and avoid forcing connectors.
Use Case
This switch is ideal for owner-operators and fleet maintenance who want a reliable turn signal function without extra downtime. If your blinkers have been inconsistent or you’re about to pass inspection, this part gets you back on the road fast.
About Us
We’re a family-owned group of Peterbilt dealerships dedicated to getting you the parts you need quickly and affordably. Whether you’re looking for Paccar OEM parts, reliable aftermarket replacements, or popular upgrades like seats and filters, we make it easy to keep your truck running and on the road. If you don’t see what you need online, just give us a call or send an email — chances are we can get it. We pride ourselves on fast service, fair prices, and being a partner you can depend on when downtime isn’t an option.




