Genuine NISMO Rear Suspension Mount Bush – R32 R33 R34 GT-R – 55442-RS580
Improve rear suspension stability and restore worn factory suspension components with the Genuine NISMO Rear Suspension Mount Bush – 55442-RS580, a reinforced rubber replacement designed for selected Nissan Skyline GT-R and compatible performance models.
Developed by Nissan's official motorsport and performance division, this genuine NISMO suspension bush features a reinforced rubber compound designed to provide greater resistance to suspension movement and deflection than a conventional factory rubber bush.
Over time, original suspension bushes can deteriorate due to age, heat, road conditions and repeated suspension loading. Worn bushes may allow additional movement within the suspension mounting assembly, contributing to less consistent handling and unwanted suspension movement.
The NISMO reinforced rear suspension mount bush is designed to reduce excessive deflection while retaining the compliance of a rubber mounting system.
For enthusiasts looking to refresh their suspension without switching to rigid or polyurethane mounting solutions, genuine NISMO reinforced bushes offer a performance-focused alternative that retains a factory-style mounting arrangement.
Whether you're restoring an R32 Skyline GT-R, upgrading an R33 or R34 GT-R, or refreshing the rear suspension on a compatible Stagea, genuine NISMO suspension components are an excellent choice for maintaining correct fitment and improving suspension control.
Important: This listing includes one (1) rear suspension mount bush only. Four (4) bushes are required for a complete replacement on applicable vehicles. Please select a quantity of four if replacing the full set.
Product Details
- Brand: Genuine NISMO
- Part Number: 55442-RS580
- Product Type: Reinforced Rear Suspension Mount Bush
- Construction: Reinforced Rubber
- Installation Position: Rear Suspension Mounting Assembly
- Installation Method: Press-Fit Replacement
- Quantity Supplied: 1 Bush
- Quantity Required: 4 Bushes per Applicable Vehicle
- Condition: Brand New – Genuine NISMO
Vehicle Compatibility
- Nissan Skyline R32 GT-R (BNR32) – Selected rear suspension mounting applications
- Nissan Skyline R33 GT-R (BCNR33) – Selected rear suspension mounting applications
- Nissan Skyline R34 GT-R (BNR34) – Selected rear suspension mounting applications
- Nissan Stagea C34 – Selected compatible models and rear suspension configurations
Important Fitment Information: Compatibility depends on the vehicle model, production date, rear suspension configuration and original bush specifications.
Please verify NISMO part number 55442-RS580 against your existing suspension bush or the applicable NISMO parts catalogue before purchasing.
Vehicles fitted with aftermarket suspension arms, modified subframes or replacement suspension mounting assemblies may require different bushes.
Key Features & Benefits
- Genuine NISMO performance suspension component
- Reinforced rubber construction for increased mounting stiffness
- Designed to reduce excessive rear suspension mount deflection
- Helps maintain more consistent suspension geometry under load
- Can improve rear suspension stability and handling consistency
- Factory-style replacement for compatible mounting assemblies
- Retains rubber compliance rather than using a rigid mounting design
- Ideal for performance street cars and enthusiast builds
- Suitable for replacing worn or deteriorated factory suspension bushes
- Excellent upgrade during rear suspension refurbishment
Why Upgrade to NISMO Reinforced Suspension Bushes?
Suspension bushes help control movement between suspension components and the vehicle chassis while absorbing vibration and road impacts.
Standard rubber bushes are designed to provide a balance between ride comfort, noise isolation and suspension control.
However, original rubber bushes can deteriorate over time, allowing additional movement within the mounting assembly.
The NISMO reinforced rear suspension mount bush uses a stiffer rubber compound to provide greater resistance to movement during demanding driving conditions.
Potential benefits include:
- Reduced unwanted movement at the suspension mounting points
- More consistent rear suspension positioning under load
- Improved handling predictability where worn bushes are contributing to movement
- Greater support for performance-oriented driving
- Replacement of ageing or deteriorated factory rubber bushes
Important: Reinforced suspension bushes do not correct damaged suspension arms, worn ball joints, incorrect wheel alignment or other mechanical faults.
Reinforced Rubber vs Standard Suspension Bushes
Factory Nissan suspension bushes are designed to isolate vibration while allowing controlled movement of the suspension assembly.
The NISMO reinforced bush prioritises increased suspension control through a stiffer rubber compound.
Compared with standard rubber bushes, the reinforced NISMO design can reduce unwanted deflection during acceleration, braking and cornering.
Unlike rigid mounting solutions, the NISMO bush retains rubber compliance to help manage road vibration and harshness.
NVH Notice: Because reinforced suspension bushes are stiffer than conventional factory bushes, an increase in noise, vibration and harshness may be noticeable, depending on the vehicle's suspension setup and condition.
Signs Your Rear Suspension Bushes May Need Replacing
Rear suspension bushes can deteriorate over time due to age, repeated suspension movement and environmental exposure.
Common signs of worn or damaged suspension bushes may include:
- Cracked or deteriorated rubber
- Excessive movement at suspension mounting points
- Clunking or knocking over bumps
- Inconsistent rear suspension response
- Visible separation of rubber from the bush housing
- Unusual rear suspension movement under load
These symptoms can also result from other suspension faults, so the complete rear suspension system should be inspected before replacement.
Four Bushes Required for a Complete Replacement
Applicable rear suspension mounting assemblies use four (4) bushes of this part number for a complete replacement.
This listing includes one (1) Genuine NISMO Rear Suspension Mount Bush – 55442-RS580 only.
For a complete replacement on an applicable vehicle, please order a quantity of four (4).
Replacing worn suspension bushes in matching left-hand and right-hand positions helps maintain consistent suspension behaviour across the vehicle.
Ideal for Skyline GT-R Suspension Restorations
The Nissan Skyline GT-R is renowned for its advanced all-wheel-drive system and sophisticated suspension design.
Maintaining the condition of the rear suspension bushes is an important part of keeping these vehicles performing as intended.
Genuine NISMO reinforced bushes are ideal for:
- R32 Skyline GT-R suspension restorations
- R33 Skyline GT-R rear suspension refurbishment
- R34 Skyline GT-R performance builds
- Replacing deteriorated original rubber bushes
- Rear suspension mounting assembly refurbishment
- Performance street and occasional track applications
- Factory-style suspension upgrades
Installation Information
This bush is intended for installation into a compatible factory rear suspension mounting assembly.
Removal of the existing bush and installation of the replacement generally requires appropriate pressing equipment and correctly sized support tooling.
Before installation, inspect the mounting housing for damage, corrosion or deformation.
Ensure the replacement bush is installed in the correct orientation and fully seated according to the applicable Nissan or NISMO installation procedure.
Where relevant, suspension fasteners should be tightened at the specified suspension position using the manufacturer's torque specifications.
Professional Installation Recommended: Incorrect bush installation can damage the replacement component or mounting assembly and may affect suspension operation.
Check the applicable workshop procedure to determine whether a wheel alignment is required after the work.
Why Choose Genuine NISMO?
NISMO is Nissan's official motorsport and performance division, developing performance components for enthusiasts seeking improved vehicle response and suspension control.
Genuine NISMO reinforced suspension bushes offer a factory-style performance upgrade for compatible Nissan vehicles, combining increased rubber stiffness with the fitment and construction expected from an official NISMO component.
Note: This listing includes one (1) Genuine NISMO Rear Suspension Mount Bush – 55442-RS580 only. Four (4) bushes are required for a complete replacement on applicable vehicles. Suspension arms, brackets, mounting hardware and additional bushes are not included unless specifically supplied by NISMO. Supplied in genuine NISMO packaging.
Australian Stock & Fast Dispatch: At OEM4JDM, every part listed as In Stock is physically on our shelf in Australia and ready for fast dispatch.