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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Nov 9 – Nov 11
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At a glance
- Condition
- New
- Size
- Spring Rate:250
- Model
- COS UN 250
- Material
- Alloy Steel
- Auto Part Position
- Rear
- Style
- Modern
- Vehicle Service Type
- Car
- In the box
- Comes with housing
Features 5
- 250LB SPRING RATE FOR PERFORMANCE STREET DRIVING Designed with a 250LB spring rate, this rear coil over shock set provides enhanced suspension support, improved handling response, and a balanced ride quality for street rods, hot rods, and custom builds.
- COMPLETE REAR COIL OVER SHOCK SET Includes a matched pair of rear coil over shocks with black coated springs, providing a complete suspension upgrade solution for custom vehicle applications.
- IMPROVED RIDE CONTROL & VEHICLE STABILITY Engineered to help absorb road impacts, reduce excessive suspension movement, and improve rear-end stability for a more controlled and confident driving experience.
- DURABLE BLACK COATED SPRINGS & HEAVY-DUTY CONSTRUCTION Built with corrosion-resistant black coated springs and durable shock components to deliver reliable performance, long service life, and a clean appearance.
- VERIFY DIMENSIONS BEFORE PURCHASE Please carefully check the shock length, mounting eyelet diameter, bushing size, and overall dimensions before ordering to ensure proper fitment with your specific vehicle setup.
Description
- This shock damper provides a smoother ride and better overall damping management.
- Spring shock absorber made of high quality steel alloy material, good strength and durability.
- Rate Spring: 250 Pound, Bolt Hole Size: 5/8" (0.625"), 9/16" hardened shaft.
- Comform to strict quality control standards, dependable to use.
- One order comes with 2 pieces for both right and left side
Universal Rear Coil Over Shock100% Brand NEWOne order comes with 2 pieces for both right and left side.Rear coil over shockPolished top retainerUrethane bushingBlack coated 250 pound rate springsBolt hole size 5/8" (0.625")9/16" hardened shaft14.5" open and 10.25" close adjustable shock centersExactly the same as photo
Specs 21
| Brand | E-MOTOR |
|---|---|
| Auto Part Position | Rear |
| Style | Modern |
| Vehicle Service Type | Car |
| Exterior Finish | Polished |
| Brand Name | E-MOTOR |
| Model Number | COS UN 250 |
| Manufacturer Part Number | MRCOS_UN_350X2MR |
| Set Name | Rear Coil Over Shock SET |
| Number of Items | 2 |
| UPC | 726189925780 |
| Item Highlight | Heavy Duty Black Coated Springs | 250 LB Spring Rate | Hot Rod & Street Rod Suspension Upgrade |
| Unit Count | 2 Count |
| Item Type Name | powersports-shocks |
| Manufacturer | E-MOTOR |
| Manufacturer Warranty Description | 90 days |
| Compatible with Vehicle Type | Car |
| Automotive Fit Type | Universal Fit |
| Style Name | Modern |
| Material Type | Alloy Steel |
| Extended Length | 14.5 inches |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 9 – Nov 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Nice
Size: Spring Rate:250
Nice shocks for the money hopefully they will last as long as the original shocks, easy to install, they did the job so far. They look good, heavy duty, fit perfectly easily adjusted for the perfect height.
Reviewed in the United States on May 22, 2026 by James
Great product!
Size: Spring Rate:250
Smooth riding will be buying again!
Reviewed in the United States on June 14, 2026 by James Hoover
I can change spring if I need to.
Size: Spring Rate:250
Nice shock put them on my 1937 chevy p-u. Did not bolt in and not having any shocks on before and after making new brackets gave the truck a better ride will see if I go with a 200 lb spring after driving her for a time. Stated with 250 lb spring.
Reviewed in the United States on November 18, 2024 by Hammer
perfect
Size: Spring Rate:250
awesome product
Reviewed in the United States on June 1, 2025 by Tina Mitchell
Bushings are cheap
Size: Spring Rate:250
The springs and shocks are fair quality but the bushings were garbage. Cheap rubber was dry rotted and fell apart in 2 months of very limited use.
Reviewed in the United States on September 4, 2025 by ATA2D
Quick delivery..
Size: Spring Rate:250
Good quality, fast delivery
Reviewed in the United States on July 7, 2024 by Denny Summers