EFS Xtreme Shock Rear - 39-7020-XXX

Brand: EFS	Product ID: 48932
SKU: 39-7020-XXX

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$285.00 (Each)

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EFS 5 Year Warranty

Shock absorber design hasn’t changed much over the last 50 years. One thing has changed, 4WD enthusiasts know what they want and look for products developed for Australian conditions.

That’s why EFS shock absorbers have been rigorously tested in Australia. Don’t be misled, this product is purpose-built, and designed right here.

The EFS Shock Absorber will ensure controlled and consistent dampening and is based on a large body twin tube, and low-pressure nitrogen gas design.

The experienced team at EFS have taken care in designing and developing valve codes to ensure that the consumer's expectations are met in all situations found when traversing the various road networks and remote areas of Australia.

This is what makes EFS superior to many competitors.

1. Polyurethane bushes are used in all applications for positive location and increased longevity and resilience.

2. Multi-lip piston shaft seals are used in all applications to keep the contaminants out and retain gas pressure and hydraulic fluid.

3. Induction hardened, high-quality chrome piston shaft of 15mm or 16mms ensures the strength, durability and rust resistance required to prevent damage to the shaft and guide seal.

4. Pressure tube/bore size of 35mm to 36mm offers optimum piston displacement for control in all environments.

5. The 50mm large body twin-tube construction of the EFS shock absorber guarantees an expanded oil reservoir for better cooling due to the larger surface area.

6. Most EFS shock absorbers are pressurized with low-pressure Nitrogen gas to prevent aeration and cavitation for more consistent dampening control.

7. Steel shrouds are used on all applications where space permits. Other locations are catered for with an optional polyurethane dust boot to deflect debris from the piston shaft and guide seal.

8. Velocity-sensitive piston adjusts to provide optimum control in all situations.

9. Variable temperature Hydraulic fluid is used to ensure consistent fluid viscosity at all temperature ranges.

10. Velocity-sensitive compression valve for consistent fluid control on compression and rebound strokes.

11. To ensure the integrity of the shock absorber all EFS shocks are supplementary welded on all mountings required for added strength.

12. Mechanical and hydraulic top-out stops are used in most applications. To prevent internal damage during extreme off-road work.

EFS Xtreme 45mm BORE TWIN TUBE DESIGN 20mm HARDENED CHROME PISTON ROD DMC DYNAMIC MOTION CONTROL VALVE The EFS X-treme range of Shock absorbers/struts has been born from the 4wd competition scene and has been developed to suit the modern 4wd.

The X-treme shock is no slouch with our largest bore of 45mm, this is a seriously big shock! the external oversized tube diameter allows for the maximum amount of shock fluid to keep the piston valve cool in all 4wd situations. The X-treme boasts some defining features that stands it above its competition with a 2mm H/D wall thickness, Iron piston rings, multi lip seals and an internal hydraulic bump stop. IT also incorporates DMC valving control with a twin tube design and with low pressure nitro gas to keep the internals stable in all conditions.

Genuine/Non Genuine – Advertised parts are not genuine (unless specifically stated) and manufacturer references are for application purposes only. Only items that are specifically noted as Genuine OEM can be presumed as genuine parts.

Superior Engineering is not sponsored, approved, affiliated or otherwise associated with any genuine or original parts manufacturer, distributor or dealer.

Identification and Guidance Only – Photos are for identification purposes only and may be of either genuine or non-genuine parts.
All manufacturers names, symbols and descriptions on this website are used for reference purposes only, and it is not implied that any units or parts listed is the product of these manufacturers.

Original Equipment Manufacturer "OEM" part/reference numbers are listed for information/reference purposes only. Trademarks identifying these parts are those of each OEM and are the property of their owners and are not used, or authorized for use, by Superior Engineering. Cross-referenced parts from the Original Equipment Manufacturer "OEM" are listed for information purposes only.

Superior Engineering has no associations and/or claims to be associated with OEM Vehicle Manufacturers and their Companies worldwide. Any implied associations are purely coincidental and are not inferred. Superior Engineering is a supplier of fully interchangeable non-genuine spare parts (alternatives) for equipment produced by manufacturers using in accordance with law OEM Vehicle Manufacturers and their products, i.e. suspension parts, steering components, manufactured items, vehicle accessories etc. Alternative spare parts produced by Superior Engineering are manufactured according own technological documentation developed with the use of reverse engineering.