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MSD 2770 Atomic TCU Transmission Controller Wiring Harness GM 4L60E 4L65E 4L80E 4L85E

Part of: MSD Transmission Controller Harness

Other options in this family: MSD 2775 MSD 2771 MSD 2776 MSD 2774

Manufacturer

Picture for manufacturer MSD

Part Number

2770
9 reviews
Sale Price

$291.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The MSD 2770 is a dedicated transmission controller wiring harness designed to connect the MSD Atomic Transmission Control Unit (TCU) to compatible GM 4-speed automatic transmissions. This harness provides a direct, transmission-specific wiring interface, ensuring a clean and reliable connection between the Atomic TCM and the transmission without the need for custom wiring.

Key Features:

  • Designed specifically for use with the MSD Atomic TCM (PN 5472760)
  • Compatible with GM 4L60E, 4L65E, 4L75E, 4L80E, and 4L85E transmissions (1993 and up)
  • Also compatible with the GM 4L70E transmission (2006–2009 model years only)
  • Transmission-specific connector for a direct-fit, plug-and-play installation
  • Sold individually as a complete harness kit

Compatibility Summary:

  • 4L60E / 4L65E / 4L75E — 1993 and up
  • 4L80E / 4L85E — 1993 and up
  • 4L70E — 2006–2009 only

The MSD 2770 harness is an essential companion component when installing the MSD Atomic stand-alone transmission controller. Its transmission-matched connectors eliminate guesswork during installation and ensure full communication between the Atomic TCU and the transmission solenoids and sensors.

Products specifications

Prop 65

No

As advertised and received the tires within a week. Thank you

Easy shopping and easy ordering

The part was exactly what I needed. Installed and working great.

Great price. Great product. Very fast shipping. No complaints at all.

Awesome experience. Price of my purchase was $30 cheaper than everyone else for the same exact product. Shipping was fast and the communication about the shipping was excellent. I'll certainly will be purchasing again. Keep up the awesome customer service.

Got the part I needed pretty quick. Smooth transaction.

Great, but I thought that it would come sooner for $20.00

Easy enough to order from

Great service and shipping!

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