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  1. Roof Rack
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  4. 49 Inch Bar
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Yakima TimberLine FX Roof Rack for Raised Side Rails - JetStream Crossbars - Black - Qty 2
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Yakima

Yakima TimberLine FX Roof Rack for Raised Side Rails - JetStream Crossbars - Black - Qty 2

Part Number: Y78UV
In Stock
$599.90
Roof Rack
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In Use/Installed

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
This aerodynamic, flush-mount roof rack lets you carry gear and cargo on your vehicle while maintaining a clean, factory look. Crossbars work with channel-mount and clamp-on accessories. Installs directly on your vehicle's raised side rails. Great Prices for the best roof rack from Yakima. Yakima TimberLine FX Roof Rack for Raised Side Rails - JetStream Crossbars - Black - Qty 2 part number Y78UV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (23)
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Yakima Roof Rack - Y78UV

Highlights

  • Complete Roof Rack System: Includes 2 integrated crossbars with towers for vehicles with raised side rails.
  • Streamlined Factory Look: Flush design keeps bars from extending past rails for a clean appearance.
  • Ready for Accessories: Works with channel-mount and clamp-on gear like cargo boxes, baskets, and kayak carriers.
  • Quieter, More Efficient Travel: Aerodynamic JetStream aluminum bars reduce wind noise and drag.
  • Strong Load Capacity: Holds up to 165 lbs while resisting corrosion; SKS lock cores sold separately deter theft.

Features to know about

Stay Streamlined on Every Drive: Flush, Factory-Look Design

The integrated crossbar and tower setup keeps everything tight to the roofline for a clean, factory look. With no overhang past the sides, the Yakima TimberLine FX sits low and sleek. The flush design gives you a refined finish that looks built in, not bolted on.

Cut Down on Wind Noise: Aerodynamic JetStream Crossbars

The JetStream crossbars are shaped to reduce drag and wind noise while you drive. Their aerodynamic, lightweight aluminum build helps maintain smooth airflow across the top of the vehicle. The push-down rubber strips in the top channels also seal out whistling air, giving you a quieter ride even when the rack is unloaded.

Ready for Every Adventure: Works with Channel-Mount and Clamp-On Accessories

These crossbars handle everything from cargo boxes and baskets to kayak carriers and fishing rod holders. The top channels accept channel-mount accessories, while the bar shape fits clamp-on gear too. You can easily switch between setups depending on what you’re hauling that weekend—no extra hardware needed.

Strong, Simple, and Secure: Steel-Banded Attachment and 165 lbs Capacity

Each bar attaches directly to your raised side rails with integrated steel bands that wrap around for a secure hold. The system supports up to 165 lbs (always observe your vehicle’s maximum roof load capacity). The weather-resistant matte towers protect against the elements, giving you reliable strength on every trip.

Lock It Down When You Want To: SKS Compatibility

For an added layer of protection, you can install Yakima Same Key System (SKS) lock cores (sold separately). With them in place, the rack stays secured when your gear is left unattended at campgrounds or trailheads. It’s an easy upgrade that keeps your setup safe without complicating how the rack works.

Specs

Quantity

  • Quantity: 2 crossbars

Dimensions

  • Crossbar dimensions: Front: 49-1/2" long x 5-1/4" wide x 4" tall
  • Crossbar dimensions: Rear: 49-1/2" long x 5-1/4" wide x 4" tall
  • Top channel dimensions: Overall: 7/8" wide x 7/16" deep
  • Channel opening: 7/16" wide

Weight and Capacity

  • Weight capacity: 165 lbs
  • Weight: 13 lbs

Warranty

  • Limited lifetime warranty

8000178 Yakima TimberLine FX MD - Roof Rack Cross Bars for Raised Side Rails

Installation Details Y78UV Installation instructions



Ratings & Reviews

5.0

23 reviews
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This aerodynamic, flush-mount roof rack lets you carry gear and cargo on your vehicle while maintaining a clean, factory look. Crossbars work with channel-mount and clamp-on accessories. Installs directly on your vehicle's raised side rails.

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Excellent communication regarding item on back order.



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Have not installed yet. But delivery was very quick and ordering process was very easy.



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Product is great but the company is even better! If you have any issue at all and call the number on the email the person actually answers and it is that actual person! They are very patient and do what they say they will do and they even follow up! I would buy from this company again and again!



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Works great



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Just install my cross bars to my 22 BMW X7. Very easy to install for someone like me, (not good at these type of things). They look really good, and I can tell that the material is quality. Very Please!!



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Fits great on my MINI Countryman! Yakima has great products.



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Fast delivery. And needed. as unfortunately we had to get a new car just before leaving on a trip. Replacing Crossbars was imperative.



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Piece of cake install on my 2025 4Runner ORP, less than 35 minutes. Looks great!



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Great product… Meets my need for multiple applications of carrying Kayaks and Roof box



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Way better than Subaru factory cross ba rs



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See what our Experts say about this Yakima Roof Rack

  • Recommended Crossbars for a 2022 Toyota Sequoia w/ Raised Rails
    I would be happy to! To attach a set of crossbars to the rails on your 2022 Toyota Sequoia, I recommend the Yakima TimberLine FX Roof Rack for Raised Side Rails item # Y78UV. This flush roof rack does not extend over the side of your Sequoia's rails. The crossbars measure 49-1/2" long x 5-1/4" wide x 4" tall and have a 165 lbs capacity.
    view full answer...
  • Correct Yakima Roof Rack Fitment for a 2021 Honda Passport
    To install a Yakima roof rack on your 2021 Honda Passport you need at least 50" JetStream Crossbars # Y00425 and the TimberLine Towers # Y33TR or the Yakima TimberLine FX Roof Rack # Y78UV that has ore or a clamp style connection as opposed to the straps. If you don't have either of these setups then I can't recommend using an alternative setup even if you're able to get it to fit. A while back we had someone fit a roof rack to a vehicle and while it technically "fit" and stayed put,...
    view full answer...


Info for this part was:

Employee Wilson B
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Wilson B
Employee Michael B
Updated by:
Michael B
Employee Daron K
Edited by:
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Employee Alex H
Written by:
Alex H

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