Moker Turbo Vane Position Sensor Socket for Duramax & Isuzu 6.6L Engines — 66mm Deep 1" 6-Point Split Socket

The Moker Duramax Turbo Vane Position Sensor Socket is a specialized split socket made to remove and install the turbo vane position sensor on 2004-and-newer Duramax and Isuzu F-Series 6.6L engines quickly and without damaging wires or tight components.

If you service Duramax-equipped Chevrolets, GMCs, or Isuzu F-Series diesels, accessing the turbo vane position sensor can be one of the trickiest tasks because of limited clearance between the hot and cold sides of the turbocharger. This purpose-built tool gives technicians and DIY mechanics a precise fit and the extra length needed to reach the sensor hex without cutting into surrounding plumbing or wiring.

How does this socket make sensor removal easier?

The split-socket design lets the tool slide around the sensor wire so you can engage the hex without disconnecting or stressing the harness. Its deep profile and 6-point geometry hold the sensor securely, reducing slippage while you turn fasteners in confined spaces.

• Split socket clears sensor wiring while engaging the hex
• Deep 66mm length reaches recessed sensor bodies
• 1" (25.4mm) 6-point head minimizes round-off risk
• 3/8" square drive for common ratchets and extensions

Which engines and part numbers is this compatible with?

This socket was engineered for 6.6L Duramax diesel engines and Isuzu F-Series turbos from 2004 onward, covering LLY, LBZ, LMM, and LML variants. It fits the turbo vane position sensor commonly identified by the OEM reference, making it a direct-fit specialty tool for those platforms.

• Compatible with Duramax LLY, LBZ, LMM, LML 6.6L engines
• Works on Isuzu F-Series diesel turbochargers 2004 and up
• Designed to remove Part# 12643471-style sensors
• Use with standard 3/8" ratchet and extensions

What are the socket’s dimensions and material benefits?

The socket measures 66mm in overall length and uses a 1" (25.4mm) 6-point opening to match the sensor hex. Manufactured from 42CrMo alloy steel, it combines high tensile strength with good corrosion resistance so the tool stays serviceable under frequent garage and roadside use.

• 66mm length provides the clearance needed in tight turbo housings
• 1" (25.4mm) 6-point head for secure engagement
• 3/8" square drive fits most common hand tools
• 42CrMo steel construction for durability and rust resistance

How should I use and care for this specialty socket?

Slide the split socket around the sensor harness so the wire remains unstrained, attach a 3/8" ratchet or extension, and turn slowly to break the sensor free. After use, wipe clean and apply a light oil to prevent corrosion; avoid impact tools to preserve the socket’s precise dimensions.

• Install by splitting over sensor wire, then engage hex
• Use hand tools—no hammering or impact drivers recommended
• Clean and lightly oil after each use to protect the finish
• Store in a dry toolbox to avoid surface rust

Who is this for: This tool is intended for professional diesel technicians, fleet mechanics, and knowledgeable DIYers who maintain Chevy or GMC Silverado/Sierra trucks and Isuzu F-Series diesels. If you routinely work on 6.6L Duramax turbos or need a reliable, no-damage method to service vane position sensors in tight turbocharger layouts, this socket is a practical addition to your toolkit.