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SKU:
NLT2S01569
Ships for free in 2–4 business days.
Transmission Lines/Cooler Hoses with Allison For 2011-2014 Duramax Diesel 6.6L
$250.39
In Stock
$250.39
Sale price
$250.39
Regular price
This set of transmission cooler lines is intended for 2011–2014 Chevrolet Silverado and GMC Sierra Duramax 6.6L trucks with the matching Allison transmission. It replaces the damaged or leaking lines that carry transmission fluid to the cooler.
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
- 2011–2014 Chevrolet Silverado and GMC Sierra HD 6.6L Duramax with Allison transmission, matching cooler-line layout
Product Overview
Seeping crimps, corroded tubing and loose fittings can lead to transmission fluid loss or reduced cooling. Replacing the affected lines helps restore a sealed fluid path, but damaged cooler connections must also be addressed.
Compare the complete routing, cooler fittings and transmission connection arrangement with the original lines.
Key Features & Performance
- Transmission cooler line/hose set; Allison/Duramax
- Confirm truck series, transmission, radiator/cooler arrangement and each line's routing; lengths and connectors differ.
What Is Included
Cooler line assemblies shown in listing
Fitment Notes
Confirm truck series, transmission, radiator/cooler arrangement and each line's routing; lengths and connectors differ.
Frequently Asked Questions
What should I check before replacing this part? Compare the complete routing, cooler fittings and transmission connection arrangement with the original lines.
How can I confirm fitment? Confirm truck series, transmission, radiator/cooler arrangement and each line's routing; lengths and connectors differ.
Is this a genuine OEM part? No. This listing describes a replacement or accessory unless expressly identified as genuine OEM. Manufacturer and reference numbers identify the intended application.
Part Summary
Keywords: Transmission Lines/Cooler Hoses with Allison For 2011-2014 Duramax Diesel 6.6L, 2011–2014 Chevrolet Silverado and GMC Sierra HD 6.6L Duramax with Allison transmission, matching cooler-line layout
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.