Gas Spring SPD-GSNI-5100-20 or LGP6-120-20 Strut Prop Rod RV Camper Hatch Door
Replacement gas spring strut rod for compatible hatches, covers, RV compartments, campers, lids, and similar lift-support applications where the length, force, and 10mm end style match.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / Interchange | SPD GSNI-5100-20 / LGP6-120-20 |
| Product Type | Gas spring strut rod / lift support |
| Nominal Extended Length | 12" |
| Nominal Stroke | 3-1/2" |
| Force Rating | 20 lb |
| End Style | Standard 10mm ball socket ends |
| Shaft / Finish | Black nitride shaft with black appearance |
| Quantity Included | 1 gas spring strut rod |
Fitment / Application
| Category | Details |
|---|---|
| Common Uses | Hatches, covers, RV compartments, campers, lids, and similar lift-support applications |
| Primary Fit | Replacement for SPD GSNI-5100-20, LGP6-120-20, and matching cross-reference applications where dimensions and force match |
| Fitment Method | Match extended length, compressed length, stroke, force rating, and 10mm end connection before ordering |
| Installation Check | Confirm that the existing mounting ball studs and brackets are in good condition and match the strut ends |
| Important Note | Gas springs should be replaced by measurement and force rating, not by appearance alone |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Black Nitride Shaft | Added corrosion resistance with a clean black appearance for visible applications |
| 20 lb Force Rating | Provides light lift-assist support for compatible small doors, covers, and hatches |
| Standard 10mm Ends | Matches common 10mm ball stud mounting setups used on many RV and hatch applications |
| 12" Nominal Length | Built for applications requiring a compact 12" extended gas spring replacement |
Overview
This black nitride shaft gas spring strut rod is a replacement lift support for compatible hatches, covers, RV compartments, campers, and similar access doors. It is commonly referenced by SPD GSNI-5100-20 and LGP6-120-20 part numbers and is intended for applications requiring a 12" nominal extended length, 3-1/2" nominal stroke, 20 lb force rating, and standard 10mm end fittings.
R&P Service Insight
Gas springs are measurement-sensitive. A strut that is too strong, too weak, too short, or too long can keep a hatch from operating correctly or place extra stress on the mounting points.
- Match Force: Replace with the same 20 lb force rating unless your application has been properly re-engineered.
- Match Length: Confirm the extended and compressed measurements from the old strut before ordering.
- Check Mounts: Inspect the 10mm ball studs, brackets, screws, and surrounding material before installing the new support.
R&P Knowledge Hub
Compatibility: This listing is for applications matching SPD GSNI-5100-20 / LGP6-120-20 style gas springs with a 12" nominal extended length, 3-1/2" nominal stroke, 20 lb force rating, and 10mm ends.
Vehicle / System Fit: Commonly used on RV hatches, camper compartments, covers, lids, access doors, and other light-duty lift-support locations where the specifications match.
Installation Notes: Support the hatch or cover before removing the old gas spring. Do not rely on the old strut to hold the door open during removal.
Performance Insight: The nitride shaft adds corrosion resistance and helps maintain a uniform black appearance, especially useful where the strut is visible after installation.
Brand & Fitment Note
Selling Brand: R&P Carriages aftermarket replacement gas spring, listed by SPD GSNI-5100-20 / LGP6-120-20 interchange reference.
Application Reference: SPD, LGP6, and other brand references are used for fitment and interchange identification only.
What This Means: This listing is for one replacement gas spring strut rod. It should be matched to your existing gas spring by part number, length, force rating, and end style before ordering.
Before Ordering: Verify extended length, compressed length, stroke, force, shaft orientation, mounting ball size, and whether your application requires one strut or a pair.
R&P Repair Insight
A weak gas spring often allows a hatch, compartment door, or cover to sag or fall closed. A mismatched replacement can create the opposite problem by making the door difficult to close or putting unnecessary load on hinges and brackets.
- Force Check: Use 20 lb only when it matches the original support or the confirmed application requirement.
- End Fitting Check: Confirm that your current mounting points use standard 10mm ball studs.
- Pairing Check: If your hatch uses two gas springs, replacing both at the same time is often the cleanest way to keep lift force balanced.
Features
Black Nitride Shaft
Annealed steel rod with nitride coating for added corrosion resistance and a clean black finish.
Standard 10mm Ends
Designed for common 10mm ball-end mounting applications used on many RV, camper, hatch, and cover setups.
20 lb Lift Support
Light-force gas spring support for compatible small hatches, covers, lids, doors, and compartment panels.
Compact 12" Nominal Size
Suitable for applications calling for a 12" nominal extended gas spring with a 3-1/2" nominal stroke.
Included Components
| Quantity | Item |
|---|---|
| 1 | Black nitride shaft gas spring strut rod — SPD GSNI-5100-20 / LGP6-120-20 style replacement |
| Included on strut | Standard 10mm end fittings |
| Not Included | Mounting brackets, ball studs, screws, or additional hardware unless shown or selected separately |
