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SKU:
NLT2T01615
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Allison 1000 Internal Wiring Harness 29545307 for 2011-2019 LML/L5P Duramax 6-Speed
$88.49
In Stock
$88.49
Sale price
$88.49
Regular price
Internal transmission wiring harness 29545307 for supported 2011-2019 GM 6.6L Duramax trucks using the Allison 1000 six-speed automatic.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- 2011-2016 Chevrolet Silverado / GMC Sierra 2500HD and 3500HD with 6.6L LML Duramax and Allison 1000
- 2017-2019 Silverado / Sierra HD with 6.6L L5P Duramax and Allison six-speed configuration
Product Overview
The internal harness carries electrical signals between transmission solenoids/sensors and the external connector. Heat, age, connector issues or fluid intrusion can create intermittent electrical faults, range/solenoid codes or erratic transmission behavior that may be mistaken for a mechanical failure.
29545307 is cataloged for Allison 1000 six-speed applications used behind 2011-2016 LML and 2017-2019 L5P Duramax engines in Silverado/Sierra 2500HD and 3500HD trucks.
Diagnosis matters before opening the transmission. Inspect external wiring and connector pins and review DTCs; once inside, keep the valve-body area clean and follow Allison/GM connector-routing procedures.
Key Features & Performance
- Internal Allison 1000 transmission harness
- Reference 29545307
- 2011-2019 six-speed Duramax application range
- Connects internal electrical components to transmission controls
Reference Numbers
- 29545307
Frequently Asked Questions
What should I verify before ordering?
Verify VIN, transmission model and production year. Diagnose external harness/connector problems before replacing the internal harness.
Is this a genuine equipment-manufacturer part?
This listing is for a replacement component identified by the application and reference numbers above. It is not represented as a genuine equipment-manufacturer part unless that is explicitly stated on the product packaging or elsewhere in this listing.