
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fleece Performance 11-16 GM 2500/3500 Duramax LML Fan Extension HarnessUpgrade your 2011 to 2016 GM 2500 and 3500 series Duramax LML models with the Fleece Performance fan extension harness. Designed to deliver reliable and efficient extension capabilities, this harness ensures seamless connection and optimal functionality of your engine's fan system. Manufactured by Fleece Performance, a trusted name in high performance automotive components, this extension harness caters specifically to the wiring needs of your
Upgrade your 2011 to 2016 GM 2500 and 3500 series Duramax LML models with the Fleece Performance fan extension harness. Designed to deliver reliable and efficient extension capabilities, this harness ensures seamless connection and optimal functionality of your engine's fan system.Manufactured by Fleece Performance, a trusted name in high-performance automotive components, this extension harness caters specifically to the wiring needs of your powerful Duramax engine. Its robust construction is engineered to withstand harsh under-the-hood conditions, providing durability and longevity.
Installation is straightforward, making it a perfect solution for enthusiasts looking to maintain or upgrade their wiring system without hassle. Whether you are enhancing your daily driver or building a high-performance workstation, this extension harness offers the reliability and quality you expect from premium tuning parts.
Backed by Tuningsupply's commitment to fast delivery and excellent customer service, you can order with confidence knowing you are supported by enthusiasts who understand your passion and technical needs.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1944 reviews
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Product Reviews
★★★★★ 5
Perfect fit Honda accord
Perfect fit. +2 mpg on a Honda hybrid. Excellent
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Premium product!
Must have, save hundreds over time. Rinse and put back on. Get the cleaners and spray to keep it new.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
It's K&N. Top quality filters
Fit perfectly. I've used K&N filters before and they worked great.
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Reviewed in the United States on August 22, 2025
★★★★★ 5
Fits perfectly
Fits perfectly and easy installation. Thanks !!!
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Reviewed in the United States on October 6, 2025
★★★★★ 5
2024 Honda CR-V
Worked for 2024 Honda CR-V Sport (Hybrid). Sizing was appropriate and the new filter slid in without any issue. Consider the filter to be of good quality. Would recommend.
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Reviewed in the United States on December 20, 2025