1981-1983 Plymouth PB150 Headlight Switch Replacement Guide
Having trouble with flickering or dead headlights in your Plymouth van? Your headlight switch is the most likely cause.
- The headlight switch is a known failure point on these older vans due to age and wear.
- Symptoms like flickering lights or total failure are a critical safety hazard requiring immediate repair.
- New OEM parts are not available; a new aftermarket switch from a brand like Standard Ignition is the recommended solution.
- Replacement is simple, affordable, and can be done at home with basic tools in under an hour.
Is Your Headlight Switch Failing?
On a classic van like the PB150, the headlight switch has endured decades of use. The internal copper contacts and plastic components wear down over time, leading to poor connections and electrical resistance. This wear and tear is the primary reason for failure and is a very common issue on vehicles from this era.
Common Symptoms of a Bad Headlight Switch
- Flickering or Intermittent Lights: Your headlights or dash lights may cut out when you hit a bump and then turn back on. This is a serious safety hazard.
- Headlights Won't Turn On: The switch completely fails to send power to the lights, leaving you in the dark.
- Lights Only Work in One Mode: You might find that only your high beams or low beams work, or you have trouble switching between them.
- Dashboard Lights Are Out: A common failure is when the headlights work, but the instrument panel lights do not, as this function is part of the same switch.
- Loose or "Mushy" Feeling: The switch may no longer click firmly into each position.
Choosing the Right Aftermarket Part
For a vehicle over 40 years old, finding a brand-new original equipment (OEM) headlight switch from Mopar is highly unlikely. The most practical and reliable solution is a new aftermarket part.
Brand Spotlight: Standard Ignition (Standard Motor Products)
Standard Ignition is the available brand for this part. They are a well-established company known for producing quality replacement electrical components for American vehicles. Parts sellers note that their switches use copper alloy conductors for good electrical performance and are tested to meet original specifications. In online forums, many mechanics and DIYers consider Standard a dependable choice when OEM parts are unavailable.
Pro Tip: While replacing the switch, it's a good idea to inspect the electrical connector for any signs of melting, corrosion, or discoloration. A failing switch can create excess heat that damages the connector. If the connector is damaged, it should be replaced as well.
Headlight Switch Replacement Cost
Replacing the headlight switch on a PB150 is an affordable repair. The main cost is the part itself, as labor is minimal for a professional or a straightforward DIY job.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $42.98 |
| New OEM | Not Available |
| Used OEM (Junkyard) | $15 - $40 |
| Shop Labor | $80 - $140 |
Cost estimates are for reference only and may vary by location and supplier.
Frequently Asked Questions
Can I replace the PB150 headlight switch myself?
Yes, this is a very DIY-friendly job for someone with basic hand tools. Access usually involves removing the instrument cluster bezel or lower dash trim to reach the switch. The switch is typically held in place by a retaining nut or a couple of screws. Always disconnect the negative battery terminal before starting any electrical work.
Why do my dash lights flicker with my headlights?
The headlight switch controls both the exterior lights and the dashboard illumination dimmer. Because both circuits are housed in the same component, a single internal fault can cause issues with both systems simultaneously.
Are there any recalls for this issue?
No, there are no recalls or technical service bulletins (TSBs) from the NHTSA for headlight switch failure on the 1981-1983 Plymouth PB150 or its Dodge B-Van counterparts. This is a standard wear-and-tear item, and the owner is responsible for the repair.
Could a bad headlight switch drain my battery?
Yes. If the switch fails internally, it can create a short circuit or fail to fully disengage, causing the lights to stay on even when the switch is in the "off" position. This can drain your battery overnight.
Technical Specifications
Dash-mounted pull-style switch with integrated instrument panel dimmer.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Plymouth PB150: