1. Prodotto finitoview
The Dorman 748-178 Power Window Regulator and Motor Assembly is a direct replacement component engineered and tested to match the fit, function, and performance of the original window regulator in specific vehicle applications. This assembly is designed to restore proper window operation.
Caratteristiche principali:
- Trustworthy Replacement: Engineered and tested to match the fit, function, and performance of the original window regulator on specified vehicles.
- Qualità assicurata: Extensively tested by cycling thousands of times in an actual vehicle door to ensure a long, trouble-free service life.
- Installazione semplice: Reverse-engineered to match the original equipment shape and dimensions, providing a direct and seamless fit.
- Design affidabile: Engineered in North America and backed by Dorman's extensive automotive aftermarket experience.
- Montaggio del veicolo: Designed for specific vehicle years, makes, and models. Verify compatibility using your vehicle's make, model, and trim level.
Cosa c'è nella scatola:
- 1 Power Window Motor and Regulator Assembly
2. Compatibilità del veicolo
This Dorman 748-178 Front Driver Side Power Window Regulator and Motor Assembly is compatible with the following vehicle model years:
- Toyota RAV4: 2006, 2007, 2008
Always verify fitment with your vehicle's specific make, model, and trim level before installation.
3. Informazioni sulla sicurezza
- Disconnect the vehicle's battery before beginning any electrical work to prevent electrical shock or damage.
- Durante l'installazione, indossare adeguati dispositivi di protezione individuale (DPI), tra cui occhiali e guanti di sicurezza.
- Exercise caution when handling glass components to avoid injury.
- Assicurarsi che tutti i collegamenti elettrici siano sicuri e adeguatamente isolati per evitare cortocircuiti.
- In caso di dubbi su una qualsiasi fase del processo di installazione, consultare un tecnico automobilistico qualificato.
4. Guida all'installazione
Installation of a power window regulator and motor assembly typically requires automotive repair knowledge and specialized tools. It is highly recommended that this procedure be performed by a certified professional or an experienced individual following the vehicle manufacturer's service manual.
Fasi generali di installazione (consultare il manuale di assistenza del veicolo per i dettagli):
- Preparazione: Parcheggiare il veicolo su una superficie piana, inserire il freno di stazionamento e scollegare il terminale negativo della batteria.
- Rimozione del pannello della porta: Carefully remove the interior door panel, window switch, and any other components obstructing access to the window regulator.
- Glass Securing: Secure the window glass in the full 'up' position using tape or specialized tools to prevent it from falling during regulator removal.
- Old Regulator Removal: Disconnect the electrical connector from the motor. Unbolt the window glass from the regulator's glass channel. Unbolt and remove the old window regulator and motor assembly from the door.
- New Regulator Installation: Position the new Dorman 748-178 assembly into the door cavity. Secure it with the appropriate bolts, ensuring proper alignment with the mounting points.
- Glass Attachment: Carefully lower the window glass and attach it to the new regulator's glass channel.
- Collegamento elettrico: Connect the electrical plug to the new window motor.
- Prova: Reconnect the vehicle's battery. Test the window's operation (up/down) to ensure smooth movement and proper function before reassembling the door panel.
- Rimontaggio: Reinstall the door panel, window switch, and any other removed components in reverse order of removal.
Installation Visual Aid:

This image shows the complete Dorman 748-178 power window regulator and motor assembly, ready for installation. It highlights the main components including the motor, cables, and guide rails.

This image provides a side perspective of the assembly, illustrating the cable routing and the overall mechanical structure that facilitates window movement.

Un dettagliato view of the motor's electrical connector, crucial for ensuring proper power supply and communication with the vehicle's electrical system.
Prodotto video:
Questo video fornisce un overview of Dorman window regulators, highlighting their design, testing processes, and quality standards. It demonstrates the performance and fitment compared to competitor products, emphasizing the importance of proper engineering for reliable window operation and safety features like pinch protection.
5. Istruzioni per l'uso
Once the Dorman 748-178 Power Window Regulator and Motor Assembly is correctly installed, the window operation should be seamless and responsive, similar to the original equipment.
- Window Up/Down: Use the vehicle's power window switch located on the driver's side door panel to raise or lower the window.
- Automatic Function (if applicable): If your vehicle is equipped with an auto up/down feature, a single press or pull of the switch should fully open or close the window.
- Pinch Protection (if applicable): Modern window systems often include a pinch protection feature that automatically reverses the window's direction if an obstruction is detected during closing. Ensure this safety feature functions correctly after installation.
6. Manutenzione
Proper maintenance can extend the life of your window regulator and motor assembly. While the Dorman 748-178 is designed for durability, periodic checks are beneficial.
- Ispezionare le guarnizioni delle finestre: Periodically check the window seals and weatherstripping for wear or damage. Damaged seals can allow moisture and debris into the door, potentially affecting the regulator.
- Pulisci le guide delle finestre: Keep the window tracks clean and free of dirt, dust, and debris. Accumulated grime can impede smooth window movement and put strain on the motor.
- Lubrificazione: If recommended by your vehicle manufacturer, apply a silicone-based lubricant to the window tracks to ensure smooth operation. Avoid petroleum-based lubricants as they can damage rubber seals.
- Ascolta i rumori insoliti: Pay attention to any unusual noises (grinding, clicking, squealing) during window operation, as these could indicate a developing issue.
7. Risoluzione Dei Problemi
If you experience issues with your power window after installation, consider the following common troubleshooting steps:
- Finestra non in movimento:
- Controllare il fusibile degli alzacristalli elettrici.
- Verify the electrical connection to the motor is secure.
- Test the window switch for functionality.
- Slow Window Operation:
- Inspect window tracks for obstructions or excessive friction. Clean and lubricate if necessary.
- Controllare il volume correttotage alimentazione al motore.
- Rumori di sfregamento o clic:
- This may indicate an issue with the regulator's gears or cables. Re-inspect the installation for any misalignments.
- Ensure no foreign objects are caught in the window mechanism.
- Window Jumps or Sticks:
- Check the window tracks and guides for proper alignment and lubrication.
- Inspect the regulator cables for fraying or damage.
For persistent issues or complex diagnostics, professional assistance from a qualified mechanic is recommended.
8. Specifiche
| Attributo | Valore |
|---|---|
| Produttore | Prodotti Dorman |
| Marca | Dorman |
| Nome del modello | Dorman 748-178: Power Window Regulator And Motor Assembly |
| Numero modello articolo | 748-178 |
| Peso dell'articolo | 1 libbre (16 once) |
| Dimensioni del prodotto | 25 x 1 x 2.4 pollici |
| Esterno | Ready To Paint If Needed |
| Numero di parte del produttore | 748-178 |
| Numero di parte OEM | 6980252080; 85720-42090 |
| Caratteristiche speciali | Facile da installare |
| ASIN | B08M4HDDZX |
| Codice UPC | 019495268383 |
| Data prima disponibilità | 28 ottobre 2020 |
9. Garanzia e supporto
Dorman Products stands behind the quality of its parts. For specific warranty details pertaining to the Dorman 748-178 Power Window Regulator and Motor Assembly, please refer to the warranty information provided with your purchase or visit the official Dorman Products websito.
Assistenza clienti:
If you have questions regarding installation, troubleshooting, or product compatibility, please contact Dorman Products customer support. Contact information can typically be found on the product packaging or their official websito.





