Dorman - HELP Headlight Adjusting Screw P/N:42161
Help keep your headlamps aimed where they belong with the Dorman - HELP Headlight Adjusting Screw 42171, a Dorman headlight adjusting screw designed to set the headlamp's aim and hold it in place. It fits many vehicles, among them the 1970 Ford Mustang, 1978-1980 Ford Granada and 1977-1979 Ford LTD II. See the "Vehicles it fits" section for the full list.
The adjusting screw is part of the headlamp's aiming mechanism. It lets the headlamp be positioned so the beam falls where it should on the road. Signs this part may need replacing include a headlamp that will not hold its aim, a screw that turns without moving the beam, or a stripped, broken or missing screw. Check the cause before you order, then aim the headlamps as directed by the vehicle service information after installation.
Interchange: D1TZ13032B · D70Z13032A · D7SZ13032B · 421712
This part cross-references / interchanges with the following part numbers:
What does a headlight adjusting screw do?
It is part of the headlamp's aiming mechanism. It lets the headlamp be positioned and held so the beam points where it should on the road.
Does the Dorman 42171 fit a 1970 Ford Mustang?
Yes, the 1970 Ford Mustang is a listed application. It also fits many other vehicles, including the 1978-1980 Ford Granada and 1977-1979 Ford LTD II. See the "Vehicles it fits" section for the full list.
What are signs the headlight adjusting screw may need replacing?
Common signs are a headlamp that won't hold its aim, a screw that turns without moving the beam, or a screw that is stripped, broken or missing.
Do I need to aim the headlights after installing it?
Check and adjust the headlamp aim after installation, following the procedure in your vehicle's service information, so the beam is set correctly.
What part numbers does the Dorman 42171 replace?
It interchanges with D1TZ13032B, D70Z13032A, D7SZ13032B and 421712.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.