Specifications
Only EnduraPro PLUS
- For vehicle models, of which sourcing original parts is almost impossible, including vintage/antique cars.
Damping force adjustment feature allows for various setting capabilities to suit different driving style and preferences.
Product Specifications
EnduraPro and EnduraPro PLUS are high-performance OE-shape shock absorbers. Designed to use with the vehicle's original (OE) spring and upper mount, their lower spring seat is shaped identical to the OE shock absorber. In addition to replacing worn or leaking OE dampers, these products are excellent to improve specs like ride quality or handling without changing your ride height. You can also use them with low down springs.
Sealed Structure
A "sealed structure", attained by a new production formula,
combines high quality with reduced cost.
About the Sealed Structure
The top end of the shell pipe is narrowed, oil and gas are injected, and the whole unit is sealed by crimping the metal.
This new approach massively shortens the production process. As a result, we have succeeded in vastly cutting production cost.
Partial Production Process of EnduraPro and EnduraPro PLUS
High Strength and Durability
Fortified Installation Points
Example: Thickness comparison of front installation bracket for Honda Jazz/Fit GP5
- OE
- EnduraPro
For strut-type suspensions a thickness increase improves the strength and durability of the bracket attaching to the vehicle (steering knuckle) compared to OE shock absorbers. This higher rigidity of the knuckle's support also improves steering feel and makes the ride feel more stable. Please note that the thickness increase varies per vehicle model.
Fortified Shell Case with Large Oil Capacity
The shell case, the key part of the shock absorber, is made of a high-strength material with tensile strength around 150% of the OE shell case. Weight increase is curbed by keeping the thickness of the cylinder wall the same. A bigger shell case diameter expands its oil capacity, for improved durability as well as a long-term stable damping force performance.
- Example: Comparisons for the Honda Jazz/Fit (GP5)
- Shell Case Tensile Strength
-
OE EnduraPro Tensile Strength (Mpa) 340 510 - Shell Case Diameter
-
OE EnduraPro Front Shock Absorbers φ45 φ55 Rear Shock Absorbers φ45 φ50.8
Please note: tensile strength and diameter of shell case vary per vehicle model.
High-Performance Damper Oil
Exhibiting a stable viscosity in a broad temperature range, the high-performance damper oil sustains smooth strokes and a reliable damping force under all kinds of circumstances. It has excellent anti-foaming properties that protect it from cavitation (bubble-forming), and is resistant to overheating, so that it works noiselessly even on rough roads. The damper oil keeps up its superior performance long-term, because it is also resistant to deterioration over time.
Rustproof Surface Treatment
The shell case's bright TEIN-green powder paint coating excels in strength and durability, while our coating technique is eco-friendly and without organic solvents. After pre-treatment, TEIN's patented 2-Layer, 1-Bake powder coating method with corrosion-proofing paint is used for superior durability and rust protection.*
Outstandingly corrosion-resistant, EnduraPro and EnduraPro PLUS can safely be used in regions with heavy snowfall or coastal areas, etc.
* Japanese patent number 4347712
More comfort and higher durability at maximum passenger and cargo load.
How the H.B.S. Mechanism Works
When regular shock absorbers fully stroke, their bump rubbers are compressed. The energy that is generated by that escapes as a repulsive force, which can disturb the vehicle's behavior. Furthermore, repeated full strokes can damage the damper.
In the same situation EnduraPro and EnduraPro PLUS, featuring H.B.S., internally convert the impact of the stroke to thermal energy (heat) and absorb it, strongly reducing the impact that disturbs the vehicle's behavior. With less damage to the dampers, H.B.S. also contributes to their durability.
Driving over a bump, the vehicle jolts and bounces. It takes a while to regain control.
The vehicle smoothly processes the impact, does not bounce, and its behavior swiftly stabilizes.
The Hydraulic Bump Stopper (H.B.S.) Mechanism
In shock absorbers with inactive or no H.B.S., the operative valve (green) floats, and oil flows freely through the base valve ports. Resistance to the flow from the shim stack then, causes damping force.
Near full compression, when the piston rod strokes beyond a predetermined point, the operative valve is pushed down and activates H.B.S.: the base valve ports are narrowed, blocking the oil flow. This results in high damping force.
A relief valve serves to suppress sudden damping force increase, when the pressure in the cylinder exceeds its regular level.
The setup of the H.B.S. mechanism is optimized per vehicle model, with the right activation point and damping force.
To avoid damages/breakages, conventional bump rubbers must also be fitted/used with H.B.S.-equipped dampers.
*NOT available on some models.
Compared to the regular mono-tube system, twin-tube attains longer strokes with a smaller repulsive force, resulting in high ride comfort.
Roads may have all sorts of surface conditions. This calls for shock absorbers with ample stroke, that operate smoothly.
Thanks to flexible strokes, you can negotiate gaps and bumps steadily on rough roads, meaning a smooth ride at low speed and stability at high speed.
Only EnduraPro PLUS
*EnduraPro PLUS Only
EnduraPro PLUS features 16-level damping force adjustment, for simultaneous adjustment of compression and rebound. Modify ride comfort and handling according to your preference, changing the properties of the shock absorber with the adjustment dial.
*Click tool is sold separately.
The above are examples; actual settings vary according to the vehicle's circumstances.
D.B.A. (Damper Body Adjuster)
D.B.A. (Damper Body Adjuster) is introduced on some models for hassle-free damping force adjustment which otherwise requires removal of damper itself with existing adjustment mechanism.
*Dampers with D.B.A. are NOT equipped with H.B.S. (Hydraulic Bump Stopper).
*EnduraPro PLUS Only
EnduraPro PLUS is compatible with the EDFC Series, which offer easy damping force adjustment from the driver's seat.*
* Some vehicle models excepted
EDFC motor instead of the adjustment dial
Please note: the example in the photos is not EnduraPro PLUS
EDFC Series Lineup
Automatic & Flexible Adjustment with New Jerk-Reactive Control
for Enhanced Driving Experience
Individual Wheel Control Jerk-Reactive Adjustment
Cornering-Reactive Accel/Deceleration-Reactive
Speed-Reactive Wireless Control AI (Learning Function)
Electronic Damping Force Controller, Featuring Auto-Adjustment
Individual Wheel Control Cornering-Reactive
Accel/Deceleration-Reactive Speed-Reactive Wireless Control
EnduraPro PLUS TOYOTA VJA300W VSAHA-B1DS2
EnduraPro PLUS MERCEDES BENZ W204 Set VSGG4-B1DS2
EnduraPro PLUS TESLA MODEL3 AWD Set VSGP4-B1DS2
