At a Glance
- SKU: LGP8-200-120
PRODUCT INFORMATION
Product Details
RV & Heavy Duty Gas Struts
GSNI-2300-120 Gas Spring Strut (Cross-Ref: LGP8-200-120) | 20" - 120 lbs
A heavy-duty lift support designed for RV under-bed storage, truck caps, and cargo hatches. Engineered as a high-quality replacement for industry-standard 20" gas props.
Part Number: LGP8-200-120 20" Extended Length 120 lbs Lift Support
Overview
This Gas Spring is a high-quality replacement solution designed for heavy-lifting RV and truck applications. Whether you are replacing a failed LGP8-200-120 or a Suspa C16-04351, this strut provides the critical 120 lbs of force needed to safely hold open heavy mattress platforms or fiberglass cargo doors. Built with a black Nitride-coated rod, it is designed to resist corrosion in harsh exterior environments.
R&P Service Insight
Replacing gas springs is a simple DIY job, but requires care due to the high internal pressure.
- Universal Fit: Fits standard 10mm ball stud mounting brackets.
- Pressure Warning: 120 lbs is extremely stiff; you cannot compress these by hand.
- Orientation: Install with the rod facing down to ensure the seals stay lubricated.
R&P Knowledge Hub
Compatibility: Direct functional replacement for LGP8-200-120, Suspa C16-04351, and Signature Series SL-23-120.
Vehicle / System Fit: Common on RV bed lifts, heavy-duty truck cap windows, and trailer ramp assist hatches.
Installation Notes: Features 10mm nylon ball sockets with metal safety clips. No tools are typically required for installation beyond a small flat-head screwdriver to lift the safety clip.
Performance Insight: The Nitride-coated annealed steel rod is superior to chrome plating for salt-spray resistance and smooth cycling.
Brand & Fitment Note
Selling Brand: R&P Carriages
Application Reference: SKU LGP8-200-120 and other manufacturer codes describe the technical specifications (8mm rod, 200mm stroke, 120 lbs force) for compatibility matching.
What This Means: This is a premium aftermarket R&P Product strut, cross-referenced to match the dimensions and force of your original equipment.
Before Ordering: Verify your old strut's extended length (measured center-of-socket to center-of-socket) and the force printed on the tube.
R&P Repair Insight
Having trouble with your current struts? Check these common failure points before ordering replacements:
- Seal Failure: If you see oil on the rod, the internal seal has failed and all pressure will eventually be lost.
- Cold Weather: Gas springs lose efficiency in the cold; if your bed only stays up in summer but falls in winter, it's time for a fresh pair.
- Mismatched Force: If your door is hard to close, you may have too much force; if it won't stay open, you need a higher lb rating.
Features
Black Nitride Coating
Enhanced corrosion resistance and smoother operation compared to standard painted rods.
10mm Snap-On Ends
Standardized ball sockets for quick replacement on most RV and trailer mounting hardware.
Heavy Duty Output
120 lbs of lifting force specifically tuned for heavy mattress lifts and fiberglass doors.
Universal Cross-Ref
Designed to replace common LGP, Suspa, and Stabilus 20-inch industrial gas struts.
Specifications
| Specification | Detail |
|---|---|
| Part Number | LGP8-200-120 |
| Brand | R&P Carriages |
| Extended Length | 20.00" |
| Compressed Length | 11.41" |
| Force | 120 lbs |
| Rod Diameter | 8mm |
| Tube Diameter | 18mm |
| Socket Size | 10mm Ball |
Fitment / Application
| Category | Details |
|---|---|
| Primary Fit | RV Beds / Truck Cap Glass |
| Compatibility 1 | LGP8-200-120 |
| Compatibility 2 | Suspa C16-04351 |
| Compatibility 3 | SPD-GSNI-2300-120 |
| Notes | Ensure matching force (120lb) for safe operation. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Heavy Duty Gas Spring |
| 2 | 10mm Nylon Ball Sockets (Pre-Installed) |
| 2 | Metal Safety Locking Clips |
Verify your existing strut measurements and force before installation. Gas struts should always be replaced in pairs for safety and to prevent binding. OEM cross-references are for fitment style and specification matching only.
JR Products GSNI-2300-120, LGP8-200-120 replacement, 20 inch gas spring 120 lbs, RV bed lift strut, truck cap door shock, Suspa C16-04351 cross reference, 10mm ball socket strut.
Related Parts & Kits
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R&P Knowledge Hub
Gas Spring Reference
Review this gas spring or compare another SPD / GSNI spring by extended length, family and force rating.
Current Gas Spring
Force
Extended
Compressed
Stroke
Rod / Tube
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How to measure a gas spring
Extended: measure center-to-center with the spring fully extended.
Compressed: measure center-to-center with the spring fully compressed.
Stroke: the distance the rod travels between compressed and extended positions.
Force: match the printed force rating whenever possible.
Reference only: verify the printed product number, force, extended length, compressed length, stroke, rod diameter, tube diameter and end fitting before ordering.