Skip to product information
SKU:
NLT2S01567
Ships for free in 2–4 business days.
Automatic Transmission Cooler Line Set for Silverado & Sierra 2500HD / 3500HD 6.6L Duramax 2015–2016
Automatic Transmission Cooler Line Set for Silverado & Sierra 2500HD / 3500HD 6.6L Duramax 2015–2016
$168.99
In Stock
$168.99
Sale price
$168.99
Regular price
This replacement transmission cooler line set is designed for 2015–2016 Chevrolet Silverado HD and GMC Sierra HD trucks with the 6.6L Duramax LML diesel engine and compatible Allison automatic transmission.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
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
Listed applications and configurations:
- 2015 Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic
- 2016 Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic
- 2015 Chevrolet Silverado 3500HD — 6.6L Duramax LML diesel, Allison automatic
- 2016 Chevrolet Silverado 3500HD — 6.6L Duramax LML diesel, Allison automatic
- 2015 GMC Sierra 2500HD — 6.6L Duramax LML diesel, Allison automatic
- 2016 GMC Sierra 2500HD — 6.6L Duramax LML diesel, Allison automatic
- 2015 GMC Sierra 3500HD — 6.6L Duramax LML diesel, Allison automatic
- 2016 GMC Sierra 3500HD — 6.6L Duramax LML diesel, Allison automatic
Fitment note: Compare line diameter, fittings, routing and cooler connection sizes with the truck. A specific aftermarket kit manufacturer's part number was not provided, so do not assume other brands' kits are interchangeable.
Product Overview
The lines carry automatic transmission fluid between the transmission and cooler to remove heat while the vehicle is running.
Leaks at crimped connections or corroded hard lines can lower fluid level and raise transmission temperatures. Correct routing and connection type are essential to prevent damage.
Compare line diameter, fittings, routing and cooler connection sizes with the truck. A specific aftermarket kit manufacturer's part number was not provided, so do not assume other brands' kits are interchangeable.
Key Features & Performance
- Application: 2015-2016 Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic.
- Purpose: The lines carry automatic transmission fluid between the transmission and cooler to remove heat while the vehicle is running.
- Identification: Match the pictured component to your original part before ordering.
Specifications
- Part / assembly: Automatic Transmission Cooler Line Set
- Application / size: 2015-2016 Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic
- Reference number(s): No independently confirmed OEM interchange number supplied
- Northline Parts SKU: NLT2S01567
Replaces Part Numbers
A reliable OEM replacement number has not been established for this listing. Verify the original component markings, measurements, and configuration rather than ordering by vehicle name alone.
What Is Included
The replacement component or kit pictured in this listing. Accessories, mounting hardware, fluids, and seals are included only when specifically shown or stated.
Installation & Fitment Notes
Compare line diameter, fittings, routing and cooler connection sizes with the truck. A specific aftermarket kit manufacturer's part number was not provided, so do not assume other brands' kits are interchangeable.
Inspect related components during replacement and follow the equipment manufacturer’s procedures for fastener torque, alignment, sealing, and any required calibration or fluid service. Do not assume that installation supplies or fluids are included.
Frequently Asked Questions
Is this an OEM part?
No. Unless the product listing explicitly states otherwise, this is an aftermarket replacement. The manufacturer names and OE references identify applicable equipment, not the maker of this item.
How do I check fitment?
Compare line diameter, fittings, routing and cooler connection sizes with the truck. A specific aftermarket kit manufacturer's part number was not provided, so do not assume other brands' kits are interchangeable.
What if my model year appears above but the part looks different?
Do not install it based on the model year alone. Factory equipment changes by engine, build date, trim, mounting style, and option package. Match the original part number and physical connections first.
Part Summary
Part: Automatic Transmission Cooler Line Set
Applications: 2015-2016 Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic; 2015-2016 Chevrolet Silverado 3500HD — 6.6L Duramax LML diesel, Allison automatic; 2015-2016 GMC Sierra 2500HD — 6.6L Duramax LML diesel, Allison automatic; 2015-2016 GMC Sierra 3500HD — 6.6L Duramax LML diesel, Allison automatic
Reference Numbers: No independently confirmed OEM interchange number supplied
Purpose: The lines carry automatic transmission fluid between the transmission and cooler to remove heat while the vehicle is running.
Northline Parts SKU: NLT2S01567
Keywords: Automatic Transmission Cooler Line Set, Automatic Transmission Cooler Line Set for Silverado & Sierra 2500HD / 3500HD 6.6L Duramax 2015–2016, NLT2S01567, Northline Parts, Chevrolet Silverado 2500HD — 6.6L Duramax LML diesel, Allison automatic, Chevrolet Silverado 3500HD — 6.6L Duramax LML diesel, Allison automatic, GMC Sierra 2500HD — 6.6L Duramax LML diesel, Allison automatic, GMC Sierra 3500HD — 6.6L Duramax LML diesel, Allison automatic.