EFS4WD
Reference: 11-0005
Control Arms
EFS HD Front Upper Control Arms — Navara D40/D23, X-Class
A lifted Navara with weight on the nose stops aligning to spec, and the upper ball joint sits at the edge of its range. These heavy-duty EFS arms return the geometry to OEM specification and add 3 degrees of ball joint travel. Sold as a pair, greasable joints, 5-year unlimited-kilometre warranty.
EFS Heavy-Duty Upper Control Arms — Nissan Navara D40 and D23, Mercedes X-Class, Renault Alaskan (pair)
The Navara is one of those utes owners start loading on day one: steel bar, winch, canopy on the tray. Add a lift and the front geometry stops adding up — camber cannot be brought into spec and the upper ball joint works at the end of its range.
These EFS arms shift the geometry so a lifted truck returns to OEM specification, and give the ball joint three extra degrees of travel plus a higher load rating. EFS backs them with five years and no kilometre limit — a real commitment on a working ute.
Fitment Navara D40 and D23/NP300, X-Class, Alaskan | Ball joint range +3 degrees | Warranty 5 years, unlimited km |
Key benefits
- Geometry back to OEM specification after a lift — no more tyres scrubbing away on the inner edge.
- Three extra degrees of ball joint travel: more articulation, less time spent against the stop.
- Higher ball joint load capacity, which counts with a heavy bar and winch over the front axle.
- Greasable ball joints and OEM-type bushings — serviceable without giving up ride comfort.
- A separate service kit (11-0005BBK, two bushings and a ball joint) is available.
- Five-year warranty with no kilometre limit.
What is in the box
A pair of arms — left and right, the complete front axle.
Technical data
- Corrects geometry back to OEM specification on a lifted vehicle
- Ball joint working range increased by 3 degrees
- Increased ball joint load capacity
- Greasable ball joints and OEM-type bushings
- Anodised green ball joint cap
- Finish: black powder coat
- Supplied as a pair
- Manufacturer: EFS, Australia
- Warranty: 5 years, unlimited kilometres
Fitment
- Nissan Navara D40 (2006 on)
- Nissan Navara D23 / NP300 (2015 on)
- Mercedes X-Class 4-cylinder (2017-2020)
- Renault Alaskan, Thailand build (2017 on)
Who they are for
Owners of a Navara, X-Class or Alaskan running a raised front end, especially where the lift went in alongside heavy accessories. If the front tyres wear at an angle after the build, or the workshop cannot get the alignment into spec, this is the missing piece.
Compared with the factory arm
The standard arm works well at standard ride height. EFS keeps the bushing type and mounting points but moves the geometry to suit a lifted vehicle, widening joint travel and raising its capacity.
Fitting notes
A front wheel alignment is required after fitting, and the greasable joints need periodic greasing.
Why buy them
- They solve a problem no amount of alignment adjustment can.
- Five years, no kilometre limit — including on a working truck.
- Rebuildable thanks to the 11-0005BBK service kit.
Lifted the front of your Navara and the alignment refuses to come back into spec? A set of EFS arms is what the build is missing.
Frequently Asked Questions
Are two arms included?
Yes, the set contains two — left and right.
Do they fit both the D40 and the D23/NP300 Navara?
Yes, both. EFS lists the Navara D40 from 2006 and the Navara D23/NP300 from 2015.
Do they fit the Mercedes X-Class?
Yes, the 4-cylinder version built 2017-2020.
What is the warranty?
Five years with no kilometre limit.
Can the bushings and ball joint be replaced separately?
Yes — service kit 11-0005BBK contains two bushings and a ball joint for this arm.
