2006-2010 6.6L Chevrolet/GMC Duramax LLY/LBZ/LMM Performance Transmission Cooler Line Upgraded Kit

FlasharkSKU: FLKT00406AN10BK

Sale price$158.89
In stock


Every truck owner knows that it doesn't matter how powerful or reliable your engine is if you can't get any power to the wheels. The transmission mated to your 2006-20010 LLY/LBZ/LMM Duramax is essential to everything your truck does, and keeping it cool is crucial. Upgrading your transmission cooler with a FLSHARK performance transmission cooler is a good start, but the fluid still needs to get to the cooler. That's where this 2006-20010 LLY/LBZ/LMM Transmission Line Kit comes in. These high-performance lines are constructed with a durable CPE that's wrapped in a high-strength nylon braid. This wrap prevents expansion and further protects the lines from abrasion. Finally, these lines are capped off with -10AN fittings for a secure and leak-free connection. Like all FLASHARK products, these transmission lines are backed by our 12-month warranty.

Direct fit for 2006-2010 LLY/LBZ/LMM Duramax

High-strength nylon outer braid prevents expansion under high pressure and protects line against abrasion

High-flow -10AN lines and fittings ensure high flow while preventing leaks

FLASHARK 12-month warranty

Package includes:

1* 10AN 46.45"" Line w/ 90° & 45° Fittings
1* 10AN 69.68" Line w/ 90° Fittings
1* 10AN 39.76" Line w/ 90° Fittings
6* 10AN to 7/8"-14 ORB Fittings
2* 10AN to M22x1.5 Fittings



Delivery Time

Our warehouses strive to have orders processed and ready to ship within 1-2 business days. Most products ship from one of our warehouses within the U.S. However, since some items will be shipped directly from the manufacturer, delivery times may vary. Common carrier deliveries typically range from 7 to 15 business days for delivery, depending on your proximity to the shipping location. If you are in a hurry, you can pay extra for shipping to speed up the delivery and we will speed up the delivery time to 2-8 business days. If your delivery time is over a holiday, please add an additional day for delivery. Our warehouses observe the following holidays: Christmas, New Years, Memorial Day, 4th of July, Labor Day and Thanksgiving. Shipping companies may observe additional holidays. 

Shipping Addresses

To keep shipping costs as low as possible and provide you with the best possible service here are some tips when checking out online:

  • Make sure your shipping address is correct.
  • Businesses run out of a residence will be considered a residential address and charged as such for any delivery.
  • Include an accurate phone number when placing an order online. If anything happens with your shipment, we will need the best way to get in touch with you. Carriers often call ahead to verify that someone will be at your business to accept the delivery. If the carrier is unable to reach you, they may not be able to deliver your items.


If for any reason you are unhappy with your order or should you wish to return or exchange a product then please contact us at service@flasharkracing.com at any time from Monday to Friday within 14 days after you received the item. Return shipping address will be provided within 24 hours, and you will get the refund within 3~5 business days after we received the return item. Email us at service@flasharkracing.com.

All of our products are sold with a 14 day money back guarantee and must be shipped to us within 14 days of you receiving them. Returns can only be accepted of products that are unopened, unused and still in their packaging or with their tags still attached. We will only accept the returned items in the same condition as we sent.

Please make sure when returning something that you securely package the item as anything damaged in the post and returned back to us due to being insufficiently packaged may receive no refund.

Refunds will be issued back to the original method of payment or store credit only.

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