EFS4WD
Reference: EB2178-16
Shocks
EFS Shock Absorber Bush, 80 Duro Polyurethane, 16 mm Bore — Jeep Grand Cherokee ZJ/WJ
EFS polyurethane damping bush, 36 x 31/25 x 16 mm, moulded from 80 Duro elastomer. It serves as the upper mount on shock 36-3205 and as the lower mount on 36-5426 — the dampers used on the Jeep Grand Cherokee ZJ/ZG and WJ/WG. Compared with rubber it holds tighter, damps better and keeps its shape far longer.
EFS Shock Absorber Bush, 80 Duro Polyurethane, 16 mm Bore — Jeep Grand Cherokee ZJ/WJ
If your Grand Cherokee knocks at the back while you crawl over broken tarmac and the dampers are still fresh, look at the bushes in the shock eyes. They, not the damper, are usually the ones making the noise — and they cost a fraction of the price.
EFS specifies 80 Duro polyurethane for its damper bushes instead of plain rubber. You do not feel the difference on day one — you feel it after a season. Rubber in a shock eye works itself loose under oil and heat; polyurethane keeps its dimensions and does not hand the damper play it never asked for.
Material 80 Duro polyurethane | Dimensions 36 x 31/25 x 16 mm | Dampers 36-3205 upper, 36-5426 lower |
Key benefits
- 80 Duro polyurethane holds its dimensions far longer than rubber, so the shock eye does not start to wander after a few trips off road.
- Less play between bush and pin means the damper works more precisely and the vehicle stays predictable.
- Resistant to oil, grit, moisture and UV — it will not go soft from grease or crack in the sun.
- Damps the vibration and noise the suspension would otherwise send into the body.
Technical data
- Material: polyurethane, 80 Duro elastomer
- Dimensions (length x diameter x bore): 36 x 31/25 x 16 mm
- Bore diameter: 16 mm
- Application: shock 36-3205 as the upper mount, shock 36-5426 as the lower mount
- Fitted into the shock eye as a damping bush
- Used on EFS Elite and XTR dampers
- Manufacturer: EFS 4x4, Australia
- Part number: EB2178-16
Who it is for
For owners of the Jeep Grand Cherokee WJ/WG (1999-2005) and ZJ/ZG (1996-1999) running EFS suspension and replacing shocks 36-3205 or 36-5426. It is also the right spare when you refresh the suspension after a hard season, because polyurethane copes with mud, water and grease far better than rubber does.
Fitting notes
The bush presses into the shock eye. Watch which end you are working on: on damper 36-3205 this is the upper mount, on 36-5426 the lower one. Each damper has two eyes, so count the quantity for both sides of the vehicle before you order. Our off-road workshop will help you put the set together if you are unsure.
Why it is worth it
- 80 Duro polyurethane instead of rubber — less play and a longer working life for the damper.
- A defined fit to dampers 36-3205 and 36-5426, with no guesswork.
- A cheap part that protects the comfort and durability of the whole suspension.
Replacing the dampers on your Grand Cherokee? Add a full set of bushes at the same time — it is the cheapest way to make new shocks behave the way they should.
Frequently Asked Questions
Which dampers does this bush fit?
Shock 36-3205 as the upper mount and shock 36-5426 as the lower mount.
Which vehicles use those dampers?
The product page lists the Jeep Grand Cherokee WJ/WG from 1999-2005 and the Grand Cherokee ZJ/ZG from 1996-1999.
Why polyurethane rather than rubber here?
80 Duro polyurethane keeps its rebound properties longer than rubber, controls play between bush and pin more tightly and resists oil, grit, moisture and UV. The result is less noise and vibration and a longer working life for the damper.
What are the exact dimensions?
36 x 31/25 x 16 mm — length x diameter x bore. The bore is 16 mm.
How many do I need?
It depends on the job: every damper has two eyes and every axle has two dampers. Work out the count for your job or contact us and we will put the set together.
