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StrongArm 4780 Tailgate Lift Support
| Brand | StrongArm 4780 |
|---|---|
| Compressed Length | 18.23 |
| Cylinder Outside Diameter | 19.0 |
| End 1 Type | Blade (.340 dia. Hole) |
| End 2 Type | Blade (.340 dia. Hole) |
| Extended Length | 28.35 |
| Inner Shaft Diameter | 8.0 |
| Internal Rebound Spring | Yes |
| Materials | Rubber |
| Materials | Teflon |
| Maximum Force | 74.0 |
| Outer Cylinder Color | Black |
| Outer Cylinder Material | Steel |
| Stroke Length | 10.12 |
| Universal Or Specific Fit | Specific |
| Fits | Subaru |
Specific fit. Custom engineered for a precise replacement.
Steel cylinder. Black steel construction with a smooth, durable finish.
Pressurized support. Helps hold the liftgate open with controlled motion.
Cross-references AMS Automotive 4780, 510-558 and 819-5251 for the same application. See all 8.
Tailgate Lift Support for Reliable Rear Access
StrongArm 4780 is a specific-fit tailgate lift support engineered for controlled opening and steady hold at the rear of the vehicle. Built with a steel outer cylinder, rubber and Teflon materials, and an internal rebound spring, it is made for smooth operation and consistent support in tailgate and midgate applications.
For drivers searching for a tailgate lift support for Chevrolet Silverado or GMC Sierra rear access, StrongArm 4780 provides the correct fit profile and OE-style function. This part number 4780 is also referenced in cross applications for the same use case.
Key Features
- Specific-fit tailgate lift support for body, tailgate, and midgate applications
- Extended length: 28.35 in.; compressed length: 18.23 in.
- Stroke length: 10.12 in. for controlled travel
- Maximum force rating: 74.0
- Steel outer cylinder with black finish
- Blade ends with .340 in. hole on both sides
- Internal rebound spring for smoother return action
- Rubber and Teflon construction for durable operation
Detailed Description
StrongArm 4780 is a tailgate lift support designed to replace worn or weak rear support cylinders that no longer hold the tailgate securely. The pressurized cylinder helps manage opening and closing effort, while the internal rebound spring supports smoother movement during use. With a specific fit design, this part number 4780 is built for direct application matching rather than universal use.
This lift support is a practical choice for Chevrolet Silverado and GMC Sierra owners who need dependable rear hatch or tailgate support. It is also cross-referenced to Monroe Shocks & Struts 172286 and 182286 for the same application.
What It Helps Fix
- Tailgate that drops too quickly when opened
- Weak rear support that no longer holds position
- Rough or inconsistent liftgate movement
- Noise or binding caused by worn support hardware
- Reduced control when opening rear access panels
Installation Notes and Tips
Verify the vehicle application before ordering, since StrongArm 4780 is a specific-fit part. Inspect the mounting points and surrounding brackets for wear before installation, and confirm the blade-style ends with .340 in. hole match the original support. Lift supports should be replaced in pairs to maintain balanced rear support and consistent operation.
Quality Assurance
StrongArm custom engineers its lift supports and manufactures them beyond industry standards to support smoother operation and longer service life. The pressurized-cylinder design is built for dependable rear lift support in automotive use.
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