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Thule 21781 TracRac SR Base Rail System for Truck Racks

(Chevrolet Silverado 1500 2014-25, Silverado 2500 HD 2015-19, Silverado 3500 HD 2015-19, Silverado 1500 LTD 2022 + 4 more models)

Part of: Thule TracRac SR Base Rail for Truck Rack Systems

Other options in this family: Thule 21783 Thule 21603 Thule 21501 Thule 21782 Thule 21608

Manufacturer

Picture for manufacturer Thule

Part Number

21781
11 reviews
Sale Price

$549.95

4 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Thule 21781 TracRac SR Base Rail System provides a custom-fit foundation for your truck rack setup, delivering smooth sliding adjustability for versatile cargo management. This precision-engineered base rail system allows you to easily reposition crossbars and accessories along the length of your truck bed without compromising stability.

Key Features:

  • Custom-fit base rail design ensures smooth sliding and precise adjustability
  • Quick, no-drill installation preserves your truck bed integrity
  • Durable construction withstands harsh weather and heavy loads
  • Compatible with Thule TracRac SR Overhead Rack and Thule Xsporter Pro Shift Overhead Rack systems

Important Note: This base rail system requires a Thule TracRac SR Overhead Rack or Thule Xsporter Pro Shift Overhead Rack (sold separately) to create a complete truck rack solution.

Ideal for contractors, outdoor enthusiasts, and anyone who needs flexible cargo management in their truck bed, the Thule 21781 base rail system combines easy installation with professional-grade performance.

Products specifications

Fits

Chevrolet Silverado 1500 2014-25, Silverado 2500 HD 2015-19, Silverado 3500 HD 2015-19, Silverado 1500 LTD 2022; GMC Sierra 1500 2014-22, 2024-25, Sierra 2500 HD 2015-19, Sierra 3500 HD 2015-19, Sierra 1500 Limited 2022

Length

77.5

Width

4.0

Height

1.9

Dimensions

77.5" x 4" x 1.9"

Type

Mounts

So far autoplicity has been a great shopping experience.

Awsome :)

5 stars

Good prices, god selection of products, easy to shop and most important thing they support Amazon pay and PayPal, what more do we need to secure our payment? Superb guys

Cheapest

So far so good thank you

First purchase with your company

yup

Found what looks like the parts I need easily. Hopefully everything matches up.

Great prices... Easy transaction

easy to navigate site

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