GARRETT 771864-0001 VANE POSITION SENSOR ADAPTER 04.5-05 GM DURAMAX LLY

Product Description

Install an Updated Garrett Turbo on Your LLY with the Garrett 771864-0001 Vane Position Sensor Adapter

The Garrett 771864-0001 Vane Position Sensor Adapter is designed for 2004.5-2005 GM 6.6L Duramax LLY applications that require conversion to the updated Garrett vane position sensor configuration. This adapter allows proper connection between the factory vehicle wiring harness and the updated vane position sensor used on compatible Garrett turbocharger upgrades.

For LLY Duramax owners installing the Garrett 848212-5001S turbocharger or replacing the vane position sensor with the updated Garrett design, this adapter is a critical component for proper fitment and operation. It helps retain clean installation, reliable communication, and correct sensor integration on trucks that use the earlier wiring configuration.

Built for direct application on 2004.5-2005 LLY trucks, the Garrett 771864-0001 is the right solution when updating the turbo system without modifying the stock harness. It is a simple but essential part for dependable turbocharger installation and long-term drivability.

Key Features:

• Genuine Garrett vane position sensor adapter
• Designed for 2004.5-2005 GM 6.6L Duramax LLY applications
• Adapts the factory wiring harness to the updated Garrett vane position sensor
• Required when installing compatible updated Garrett turbocharger assemblies on LLY trucks
• Supports proper turbo vane position sensor communication and operation
• Direct-fit solution with no major harness modification required
• Ideal for Garrett 848212-5001S turbocharger installations

FAQ

What does the Garrett 771864-0001 adapter do?

This adapter converts the factory 2004.5-2005 LLY wiring harness to work with the updated Garrett vane position sensor used on compatible turbocharger upgrades.

When is this adapter needed?

This adapter is needed when installing an updated Garrett turbocharger or updated vane position sensor on an LLY Duramax that uses the earlier factory wiring configuration.

Is this required with the Garrett 848212-5001S turbo?

Yes, Garrett resellers commonly specify this adapter for installing the Garrett 848212-5001S turbocharger on 2004.5-2005 GM 6.6L Duramax LLY applications.

Does this fit 2006 and newer Duramax trucks?

No. Garrett's adapter documentation states this adapter is used on 2004 and 2005 model year vehicles, and that 2006 and newer applications do not require it.

Fitment

• 2004.5-2005 Chevrolet Silverado 2500 HD 6.6L Duramax LLY
• 2004.5-2005 Chevrolet Silverado 3500 6.6L Duramax LLY
• 2004.5-2005 GMC Sierra 2500 HD 6.6L Duramax LLY
• 2004.5-2005 GMC Sierra 3500 6.6L Duramax LLY

Note: This adapter is intended for LLY applications using the updated Garrett vane position sensor configuration. Garrett documentation indicates 2006 and newer model years do not require this adapter.

Specifications for Garrett 771864-0001