Toyota 81170-35400 Driver Side Headlight Assembly

The headlights must be aimed correctly to avoid blinding oncoming drivers and to ensure optimal visibility on the road. It's important to check the aim every 12 months and whenever a new headlight is installed or front-end body work is done. Each headlight housing features a vertical adjusting screw for up-and-down movement, accessible with a long Phillips screwdriver, and a horizontal adjuster screw that is locked in place by a retainer, which should only be adjusted when replacing the housing. To adjust the headlights, position a blank wall 25 feet in front of the vehicle and use masking tape to mark the vehicle centerline and the centerlines of both headlights, along with a horizontal tape line for reference. Ensure the vehicle is level, with a half-full gas tank and no heavy load. For low beam adjustment, set the high-intensity zone two inches below the horizontal line and two inches to the side away from oncoming traffic, adjusting the top screw accordingly. With high beams on, the high-intensity zone should be centered just below the horizontal line, keeping in mind that low beams are more critical for safety. It is advisable to have the headlights professionally adjusted at the earliest opportunity. Additionally, fog light housings are adjustable from under the front of the vehicle, though adjustment is typically unnecessary unless replacement is required.

On 2005 and earlier models, remove the front bumper cover trim panel, which is the thin strip on top of the front bumper cover where the grille rests when the hood is closed, by using a screwdriver to pry loose all six retaining tabs from their corresponding slots in the bumper cover and carefully disengaging all six claws from their locator pins. Disconnect the electrical connectors from the headlight bulbs by depressing the release tab and disconnecting the connector from the bulb socket, and from the front parking/sidemarker light bulb socket by turning it counterclockwise and pulling it out, although it's not necessary to disconnect the electrical connector unless removing the headlight housing assembly. Remove the front bumper cover filler strip, secured by a screw, by detaching the screw or push fastener. Remove the three upper headlight housing mounting bolts to detach the upper part of the housing. Loosen the front left or right wheel lug nuts, raise the front of the vehicle securely on jackstands, and remove the left or right front wheel along with the inner fender splash shield. Remove the lower headlight housing mounting bolt to detach the lower part of the housing, then pull out the headlight housing. Installation is the reverse of removal, and when finished, check the headlight housing adjustment and adjust as necessary.

The rubber seals come with the headlight