The SPOOLOGIC Turbo Vane Position Sensor Socket SL-600-037 is the dedicated removal/installation tool for the factory Garrett GT3788VA variable geometry turbocharger vane position sensor on 2004.5-2016 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LLY LBZ LMM LML
/ 2006-2016 Chevrolet Express GMC Savana 2500 3500 4500 6.6L Duramax LLY LMM LGH. The sensor sits in a recessed pocket on the turbo bearing housing where standard wrenches and sockets won’t fit — this specialty socket grips the sensor body flats correctly to remove and torque it without rounding the part or cracking the housing.

This turbo vane position sensor socket is a brand new direct-replacement unit built to OEM specifications and pre-tested to match the original factory part. It plugs into the factory engine harness and ECM without re-programming or modification — fits the original factory part out of the box, no tuning or piggyback module needed.

When You Need a Turbo Vane Position Sensor Socket

This tool is required when:

• Standard 7/16″ or 24mm wrenches won’t fit around the VGT position sensor — the sensor sits in a recessed pocket on the turbo housing
• Stripping or rounding the sensor body when trying to remove it with pliers or vise grips — no factory tool clearance for normal sockets
• Cracking the sensor on removal — sideloading from incorrect tools

Built for the Factory Garrett GT3788VA Turbocharger

SPOOLOGIC tools and adapters are made to OEM dimensional specs so the part installs and operates exactly like a factory unit — no fitment shims, no modifications, no risk of damaging the turbo housing or sensor on install.

What’s Included

• (1) Turbo Vane Position Sensor Removal/Installation Socket

Cross-References / Equivalent Tool Numbers

This part replaces the following factory OEM and aftermarket cross-reference numbers:

• Other Cross-Reference: 12400, 290014, SP12400, TSS1240, TVS1240

Features

• Direct-fit turbo vane position sensor socket for 2004.5-2016 Chevrolet Silverado GMC Sierra 2500 3500 6.6L Duramax LLY LBZ LMM LML
  / 2006-2016 Chevrolet Express GMC Savana 2500 3500 4500 6.6L Duramax LLY LMM LGH
• Dedicated socket geometry for the recessed vane position sensor pocket on the GT3788VA turbo housing
• Replaces 12400, 290014, SP12400, TSS1240, TVS1240
• Brand new — pre-tested to OEM signal and fitment specs

Fits 2004.5-2016 6.6L Duramax LLY LBZ LMM LML / 6.6L Duramax LLY LMM LGH

• 2004.5 – 2016 Chevrolet Silverado GMC Sierra 2500 / 3500 6.6L Duramax LLY LBZ LMM LML
• 2006 – 2016 Chevrolet Express GMC Savana 2500 / 3500 / 4500 6.6L Duramax LLY LMM LGH

1-Year Limited Warranty

Every SPOOLOGIC sensor and signal device is covered by a 1-Year Limited Warranty against defects in materials and workmanship from the date of purchase. Warranty coverage requires that the sensor first be shipped back to SPOOLOGIC for inspection. If SPOOLOGIC determines the failure was caused by a defect in materials or workmanship, the sensor will be replaced at SPOOLOGIC’s discretion. Warranty does not cover damage from improper installation, incorrect wiring or polarity, connector damage, moisture ingress from unsealed connectors, exposure to voltage or current beyond the device’s rated operating range, use with tuning or PCM modifications that alter the intended signal path, use outside the listed fitment, cosmetic wear, or normal heat cycling marks. Warranty does not cover labor, shipping, towing, downtime, or any other costs outside the sensor itself.