| MOQ: | 50 sets |
| Price: | can be discussed |
| Standard Packaging: | standard exporting package |
| Delivery Period: | two weeks |
| Payment Method: | T/T |
| Supply Capacity: | 20,000sets/month |
This shock absorber strut mount is a stud-free stamped steel-rubber composite spare part with irregular pentagon base. The one-piece bent stamped pentagon steel plate is matched with concentric multi-layer bowl-shaped vulcanized buffer rubber, and the inner stepped central locating boss fits thin-diameter shock absorber piston rods. Different from regular triangular or rhombus bases, the pentagon outer contour perfectly matches the limited space of specific vehicle engine bays. Bearing-free design delivers lightweight cost-effective aftermarket replacement. The thick cold-rolled steel shell is covered with full black electrophoretic anti-corrosion coating, and modified EPDM rubber is tightly bonded with steel shell via high-pressure vacuum vulcanization. It solves common chassis failures including vibration transmission, bump clunk noise, permanent rubber collapse and steel shell rust, widely used for shock absorber maintenance replacement of multiple series family vehicles.
| Parameter Category | Detailed Technical Index |
|---|---|
| Base Steel Plate Material | Thickened SPHC cold-rolled steel, one-piece pentagon bent stamping without stress cracks or edge burrs |
| Metal Anti-Corrosion Treatment | Full matte black electrophoretic coating with uniform dense film, passes 460-hour neutral salt spray test |
| Buffer Rubber Raw Material | Low & high temperature resistant, hydraulic oil resistant modified EPDM rubber, anti-acid & alkali deicing salt corrosion |
| Standard Rubber Shore Hardness | 63±3HA, low compression set, balanced load support and soft vibration absorption |
| Molding Vulcanization Process | Integrated vacuum compression vulcanization, rubber physically locked into steel inner annular grooves to avoid delamination |
| Mounting Hole Layout | 3 standard round through holes evenly distributed on pentagon base, hole size & spacing fully comply with OEM drawings |
| Compatible Fasteners | Works with universal Class 4.8 hex bolts, standard stock bolts in repair shops for direct installation |
| Central Locating Structure | Recessed concentric stepped boss fits thin piston rods, reduces radial assembly clearance to eliminate shock absorber wobble play |
| Operating Temperature Range | -41℃ ~ 120℃, stable rubber elasticity without hardening or oil swelling under extreme cold & high engine bay heat |
| Durability Test Standard | No steel bending deformation, rubber crack delamination or bonding separation after 108,000 cyclic compression impact cycles |
| Internal Functional Structure | Bearing-free design, only undertakes axial load bearing and road vibration filtering |
| Structural Part | Core Design Advantages |
|---|---|
| Irregular Pentagon Stamped Base | Unique pentagon outline fits engine bay limit contour of specific vehicle models, no interference with surrounding pipelines, easy disassembly in narrow installation space. Widened base evenly distributes stress to prevent unilateral warping under heavy load |
| Recessed Concentric Stepped Central Boss | Inner narrowed stepped boss adapts to thin-spec piston rods, multi-step layers tightly attach rod outer diameter to eliminate radial wobble, reduce unilateral friction loss of piston rod and oil seal, and lower oil leakage risk |
| Concentric Multi-Layer Bowl-Shaped Rubber Buffer Cavity | Double inner concave bowl rubber curves create progressive damping for layered vibration absorption, dull deep front-end banging noise over speed bumps and potholes, block vibration transfer to passenger cabin |
| Full-Wrapped Inner Ring Rubber Seal Lip | Rubber fully covers steel inner bonding edge to block rainwater, silt and deicing salt from invading metal-rubber gaps, preventing rubber delamination and cracking under long-term driving vibration |
| Smooth Matte Electrophoretic Steel Surface | Burr-free glossy coating repels mud and oil dirt, no paint peeling or steel rust during long outdoor driving for easy cleaning and maintenance |
| Comparable Product Type | Exclusive Advantages Of This Pentagon Studless Mount |
|---|---|
| Conventional triangular 3-hole stamped steel strut mount | Special pentagon contour fits limited engine bay of exclusive vehicle models without pipeline interference, solving installation collision issues of triangular mounts; widened base offers larger stress area for stronger heavy-load stability |
| Rhombus 3-hole stamped steel shock mount | Unique pentagon outer contour covers segmented niche vehicle aftermarket; recessed central stepped boss fits thin piston rods, making up the limitation that regular rhombus bases only match thick-rod shock absorbers |
| ADC12 die-cast aluminum strut mount | Stamped steel cuts production cost with low bulk stocking threshold for mass universal replacement in repair shops; standard through holes are compatible with all common bolts for flexible parts inventory allocation |
| Integrated pre-welded stud strut mount | No exposed welded studs to avoid collision deformation or thread stripping damage during storage & transportation; bolts can be replaced separately instead of the whole mount to reduce maintenance material cost |
| Item | Detailed Description |
|---|---|
| Compatible Vehicles | Front strut top mounts for small European cars, compact Asian family sedans and small urban SUVs |
| Applicable Road Conditions | Paved city roads, highways, rural gravel lanes, snowy salt-treated wet roads; not recommended for heavy-duty off-road overloading |
| Fixable Fault 1 | Dull banging noise from vehicle front end over uneven ground & speed bumps, intense bump vibration inside cabin |
| Fixable Fault 2 | Sagged vehicle ride height and frequent wheel alignment deviation & vague high-speed handling caused by collapsed aged original rubber |
| Fixable Fault 3 | Broken or stripped welded studs on old stud-equipped mounts that block secure shock absorber assembly locking |
| Fixable Fault 4 | Loose chassis and obvious body sway during high-speed lane change with declined steering stability |
| Fixable Fault 5 | Large radial play of shock piston rod leading to unilateral oil seal friction and accelerated hydraulic oil leakage |
| Inspection Category | Testing Standard & Control Purpose |
|---|---|
| Full Dimensional Geometry Inspection For Steel Base | 100% measurement of pentagon outline, 3-hole spacing and stepped central boss outer diameter, strictly matching OEM assembly dimensions |
| Metal-Rubber Peel Tensile Test | Verify vacuum vulcanization groove lock strength to eliminate rubber delamination risks from long-term driving vibration |
| Neutral Salt Spray Anti-Corrosion Durability Test | No oxidation rust spots after 460-hour continuous salt spray test to confirm long-term rust protection performance of electrophoretic coating |
| High-Low Temperature Cycling Aging Test | Repeated temperature cycles between -41℃~120℃ to maintain stable rubber elasticity without brittle cracking or oil swelling softening |
| Cyclic Compression Fatigue Impact Test | 108,000 cyclic load impacts simulating multi-year long-term vehicle driving durability, test steel and rubber service life |
| Full Appearance Defect Screening | No scratches or pores on steel paint surface, bubble/crack-free rubber, burr-free undistorted mounting through holes |
| MOQ: | 50 sets |
| Price: | can be discussed |
| Standard Packaging: | standard exporting package |
| Delivery Period: | two weeks |
| Payment Method: | T/T |
| Supply Capacity: | 20,000sets/month |
This shock absorber strut mount is a stud-free stamped steel-rubber composite spare part with irregular pentagon base. The one-piece bent stamped pentagon steel plate is matched with concentric multi-layer bowl-shaped vulcanized buffer rubber, and the inner stepped central locating boss fits thin-diameter shock absorber piston rods. Different from regular triangular or rhombus bases, the pentagon outer contour perfectly matches the limited space of specific vehicle engine bays. Bearing-free design delivers lightweight cost-effective aftermarket replacement. The thick cold-rolled steel shell is covered with full black electrophoretic anti-corrosion coating, and modified EPDM rubber is tightly bonded with steel shell via high-pressure vacuum vulcanization. It solves common chassis failures including vibration transmission, bump clunk noise, permanent rubber collapse and steel shell rust, widely used for shock absorber maintenance replacement of multiple series family vehicles.
| Parameter Category | Detailed Technical Index |
|---|---|
| Base Steel Plate Material | Thickened SPHC cold-rolled steel, one-piece pentagon bent stamping without stress cracks or edge burrs |
| Metal Anti-Corrosion Treatment | Full matte black electrophoretic coating with uniform dense film, passes 460-hour neutral salt spray test |
| Buffer Rubber Raw Material | Low & high temperature resistant, hydraulic oil resistant modified EPDM rubber, anti-acid & alkali deicing salt corrosion |
| Standard Rubber Shore Hardness | 63±3HA, low compression set, balanced load support and soft vibration absorption |
| Molding Vulcanization Process | Integrated vacuum compression vulcanization, rubber physically locked into steel inner annular grooves to avoid delamination |
| Mounting Hole Layout | 3 standard round through holes evenly distributed on pentagon base, hole size & spacing fully comply with OEM drawings |
| Compatible Fasteners | Works with universal Class 4.8 hex bolts, standard stock bolts in repair shops for direct installation |
| Central Locating Structure | Recessed concentric stepped boss fits thin piston rods, reduces radial assembly clearance to eliminate shock absorber wobble play |
| Operating Temperature Range | -41℃ ~ 120℃, stable rubber elasticity without hardening or oil swelling under extreme cold & high engine bay heat |
| Durability Test Standard | No steel bending deformation, rubber crack delamination or bonding separation after 108,000 cyclic compression impact cycles |
| Internal Functional Structure | Bearing-free design, only undertakes axial load bearing and road vibration filtering |
| Structural Part | Core Design Advantages |
|---|---|
| Irregular Pentagon Stamped Base | Unique pentagon outline fits engine bay limit contour of specific vehicle models, no interference with surrounding pipelines, easy disassembly in narrow installation space. Widened base evenly distributes stress to prevent unilateral warping under heavy load |
| Recessed Concentric Stepped Central Boss | Inner narrowed stepped boss adapts to thin-spec piston rods, multi-step layers tightly attach rod outer diameter to eliminate radial wobble, reduce unilateral friction loss of piston rod and oil seal, and lower oil leakage risk |
| Concentric Multi-Layer Bowl-Shaped Rubber Buffer Cavity | Double inner concave bowl rubber curves create progressive damping for layered vibration absorption, dull deep front-end banging noise over speed bumps and potholes, block vibration transfer to passenger cabin |
| Full-Wrapped Inner Ring Rubber Seal Lip | Rubber fully covers steel inner bonding edge to block rainwater, silt and deicing salt from invading metal-rubber gaps, preventing rubber delamination and cracking under long-term driving vibration |
| Smooth Matte Electrophoretic Steel Surface | Burr-free glossy coating repels mud and oil dirt, no paint peeling or steel rust during long outdoor driving for easy cleaning and maintenance |
| Comparable Product Type | Exclusive Advantages Of This Pentagon Studless Mount |
|---|---|
| Conventional triangular 3-hole stamped steel strut mount | Special pentagon contour fits limited engine bay of exclusive vehicle models without pipeline interference, solving installation collision issues of triangular mounts; widened base offers larger stress area for stronger heavy-load stability |
| Rhombus 3-hole stamped steel shock mount | Unique pentagon outer contour covers segmented niche vehicle aftermarket; recessed central stepped boss fits thin piston rods, making up the limitation that regular rhombus bases only match thick-rod shock absorbers |
| ADC12 die-cast aluminum strut mount | Stamped steel cuts production cost with low bulk stocking threshold for mass universal replacement in repair shops; standard through holes are compatible with all common bolts for flexible parts inventory allocation |
| Integrated pre-welded stud strut mount | No exposed welded studs to avoid collision deformation or thread stripping damage during storage & transportation; bolts can be replaced separately instead of the whole mount to reduce maintenance material cost |
| Item | Detailed Description |
|---|---|
| Compatible Vehicles | Front strut top mounts for small European cars, compact Asian family sedans and small urban SUVs |
| Applicable Road Conditions | Paved city roads, highways, rural gravel lanes, snowy salt-treated wet roads; not recommended for heavy-duty off-road overloading |
| Fixable Fault 1 | Dull banging noise from vehicle front end over uneven ground & speed bumps, intense bump vibration inside cabin |
| Fixable Fault 2 | Sagged vehicle ride height and frequent wheel alignment deviation & vague high-speed handling caused by collapsed aged original rubber |
| Fixable Fault 3 | Broken or stripped welded studs on old stud-equipped mounts that block secure shock absorber assembly locking |
| Fixable Fault 4 | Loose chassis and obvious body sway during high-speed lane change with declined steering stability |
| Fixable Fault 5 | Large radial play of shock piston rod leading to unilateral oil seal friction and accelerated hydraulic oil leakage |
| Inspection Category | Testing Standard & Control Purpose |
|---|---|
| Full Dimensional Geometry Inspection For Steel Base | 100% measurement of pentagon outline, 3-hole spacing and stepped central boss outer diameter, strictly matching OEM assembly dimensions |
| Metal-Rubber Peel Tensile Test | Verify vacuum vulcanization groove lock strength to eliminate rubber delamination risks from long-term driving vibration |
| Neutral Salt Spray Anti-Corrosion Durability Test | No oxidation rust spots after 460-hour continuous salt spray test to confirm long-term rust protection performance of electrophoretic coating |
| High-Low Temperature Cycling Aging Test | Repeated temperature cycles between -41℃~120℃ to maintain stable rubber elasticity without brittle cracking or oil swelling softening |
| Cyclic Compression Fatigue Impact Test | 108,000 cyclic load impacts simulating multi-year long-term vehicle driving durability, test steel and rubber service life |
| Full Appearance Defect Screening | No scratches or pores on steel paint surface, bubble/crack-free rubber, burr-free undistorted mounting through holes |