35+ Years' Experience
25,000+ Accessories
OEM Quality
Next Day Delivery*

Cargo Carrier Cross Bars to fit Mountain Top Roller Tonneau Cover NP300 (2016 Onwards) & Mercedes X-Class (2018 - 2021)

100% of 100

Get more from your pick-up truck with a set of two Mountain Top cross bars, designed especially for Mountain Top roller tonneau covers. 

Read More
£228.83 £190.69
Available to pre-order

Features And Benefits

  • Heavy-duty aluminium system - lightweight yet robust and dependable
  • Anti-theft lock mechanism - prevents potential thieves
  • 75kg load capacity - maximise pick-up’s cargo-carrying potential
  • Easy to install - transform your vehicle in minutes
  • Compatible with Mountain Top roller covers - full-access to truck load bed space
  • Integrated non-slip rubber surface - helps secure load, safety when loading/unloading
  • Compatible with roll bars/sports bars - equally stylish and practical
  • Compatible with Thule products - ideal for transporting bicycles, sports equipment

Heavy-Duty Low Profile Aluminium System

Aerodynamically designed to reduce drag and fuel consumption, the Mountain Top Cargo Carrier system is sold as Original Equipment to the major pick-up truck brands across Europe. Robust and dependable, the cross bars have a load capacity of 75kg allowing owners to maximise the cargo-carrying potential and boost practicality. Compatible with Mountain Top’s roller tonneau system, fitting the roof bars allows full access to both the tonneau cover and the truck’s load bed area - the crossbar system is a value adding and transformative upgrade.

Anti-Theft Lock Mechanism

Once fitted to Mountain Top’s integrated fitting channels, the cross bars can be key-locked into place to prevent them from being stolen would-be thieves.

Compatible With Thule Bike Racks

Mountain Top’s Cargo Carrier system is fully compatible with Thule rack systems for carrying bicycles or other sports equipment.
More Information
Brand Mountain Top
Compatible Vehicles Mercedes Mercedes X-Class (2018 Onwards), Nissan NP300 Navara (2016 Onwards) Double Cab, Nissan NP300 Navara (2016 Onwards) King/Extra Cab, Renault Renault Alaskan (2017 Onwards) Double Cab, Renault Renault Alaskan (2017 Onwards) Extra Cab
Write Your Own Review
You're reviewing:Cargo Carrier Cross Bars to fit Mountain Top Roller Tonneau Cover NP300 (2016 Onwards) & Mercedes X-Class (2018 - 2021)
Your Rating

Fit at Home

This product can be DIY-installed with the included fitting instructions. *

Fitting & Installation Centre, West Midlands

If you'd prefer to have this accessory fitted by our experts, read on to learn about our accessory fitting service. Open five days a week, our specialist West Midlands fitting centre is ideally located in Dudley, around 30 mins from Birmingham City Centre.

Our experienced team of fitters and technicians are on hand to accessorise your vehicle whilst you relax in our pet-friendly showroom. Here are some benefits of our fitting service:

  • Express fitting of accessories by experienced specialists
  • Comfortable waiting area and accessory showroom
  • Free WiFi and TV
  • Pet-friendly
  • Close to Merry Hill Shopping Centre, over 200 shops
  • Located alongside Dudley Canal with scenic waterside walkways

Learn More


* Please Note: Some products, for example, spare parts, may not be supplied with fitting instructions.

Delivery Methods

  • Fast, same-day despatch on orders placed by 2:00pm on weekdays
  • Fully insured and trackable shipping methods using specialist delivery partners
  • Competitively-priced delivery rates across our diverse range of products - from fast parcel shipping to pallet delivery
  • Products handled with care and packaged in highly-protective packaging

UK Offshore Delivery

Delivery to UK offshore destinations, depending on the type and quantity of products ordered, may incur an additional cost. If your order is subject to any delivery surcharge by our couriers, our team will contact you as soon as possible, after your order is placed.

International Delivery

Our dedicated Export Team are on hand to facilitate international delivery. Customers outside of the United Kingdom can Request a Quote by proceeding through the Checkout. Our team will contact you within 24 hours with a competitive shipping price.


If you're unhappy with an item you've ordered, or you've ordered an incorrect item, contact us and we'll make the returns process easy. Read more.

For more information about delivery and returns, please see our Terms and Conditions.

Shipping/Delivery Quote Request Submitted
Thank you for requesting a shipping/delivery quote. We will contact you within 1 business day to confirm your order.