Ironman 4x4 IM2.5 Coilover Strut - Part 71-057-045

Short Product Summary

This Ironman 4x4 IM2.5 coilover strut (part 71-057-045) is sold by part number rather than by vehicle. It combines a 57mm CNC billet piston, a 20mm hardened steel rod and a matched coil in a single assembled unit tuned for the vehicle. Send us your vehicle's make, model, year and engine and we will confirm fit before you order.

Why This Product

Heat is a big problem for shock absorbers on long, rough tracks, and aluminium manages it better than steel. The IM2.5 uses an extruded aluminium monotube body and a large 57mm piston that allows fine valving, aimed at a smooth, plush ride from suburban roads to rocky high-country tracks. Send us your vehicle details and we will confirm this part number is the right one for it.

Key Features

• Aluminium monotube body – extruded aluminium handles heat better than steel, which helps the shock keep its composure
• Type 2 hard anodised finish – a tough exterior finish to handle an off-road beating
• 57mm CNC billet piston – low-speed bleed ports give a smooth, plush ride from town streets to rocky tracks
• 20mm hardened steel rod – protected by a robust dirt shield and NOK seals
• Internal floating piston – an inline design with 200PSI nitrogen gas instead of a remote reservoir
• Upside-down mounting – the 3-4mm thick body sits out of harm's way from stones and knocks
• Pre-assembled coilover – the coil is matched to the shock and arrives fully assembled; the Acme thread lets you adjust ride height

Ideal For

• Owners with a part number who would like a second opinion on fit before they order.
• Off-road tourers who spend long days on gravel and rough tracks.
• Drivers wanting a tough finish who like the hard anodised aluminium body and dirt shield.
• Owners adjusting ride height who want to set the spring position to suit the load carried up front.

Local Support from 4Matt Campers

Based in Cape Town, we help owners choose Ironman 4x4 suspension parts that suit their vehicle and load, and we can advise on fitting.

Technical Specifications

• Brand: Ironman 4x4
• Part Number: 71-057-045
• Range: IM2.5
• Type: Monotube coilover strut
• Body: 2.5-inch extruded T6-6061 aircraft grade aluminium, 3-4mm thick
• Finish: Type 2 hard anodised
• Piston: 57mm CNC billet aluminium
• Rod: 20mm hardened steel
• Gas charge: High-pressure (200PSI) nitrogen, internal floating piston
• Dirt shield: Robust dirt shield
• Spring: Pre-assembled coil and strut
• Ride height: Adjustable with Acme thread
• Tuning: Vehicle-specific

Optional Fitment / Upgrade Notes

No vehicle is attached to part 71-057-045, which means fit is confirmed from your vehicle rather than assumed.

• Send us your vehicle's make, model, year, engine and cab type and we will confirm whether this part fits.
• Springs are selected separately for the weight of the vehicle; ask us to help match the right one to your load.
• We recommend professional fitting, followed by a wheel alignment.
• Tell us whether you are replacing the front or rear shocks, and ask us to confirm fit before you place the order.

Complete Your Setup

Browse more suspension parts and the wider Ironman 4x4 range, or look through our 4x4 parts and accessories while you plan the rest of the build.

FAQ

Which vehicle does part 71-057-045 fit?
Fit is confirmed from your vehicle rather than assumed. Send us the make, model, year, engine and cab type before you order.

What is the body made of?
A 2.5-inch extruded aluminium monotube body with a Type 2 hard anodised finish, and a 20mm hardened steel rod.

Can I adjust the ride height?
Yes. The thread along the strut body lets you set the spring position to suit how heavy the front end is, while keeping the right ride height.

Does the coilover include the spring?
Yes. The coil is matched to the shock and it comes fully assembled as one package.

Should I fit it myself?
We recommend professional fitting followed by a wheel alignment. Ask us if you would like advice on fitting.