At a Glance
- SKU: LGP6-185-45

Premium black nitride gas spring designed for lifting and supporting RV compartment doors, marine hatches, and industrial covers. Provides smooth, controlled motion with superior corrosion resistance.
The LGP6-185-45 is a high-performance gas strut featuring a black nitride finish for maximum durability. Engineered with an annealed steel rod and steel tube, it acts as a direct replacement solution designed for RVs, campers, and boats where measurements and 10mm ball stud mounting points match. This strut ensures heavy lids and hatches remain securely open and close with ease.
Gas struts lose pressure over time due to seal wear. To maintain safety and operational balance, we always recommend replacing them in pairs.
Compatibility: Direct fit replacement for SPD GSNI-5250-45, Titan GN6-185-45, and AVM SE725APE45.
Vehicle / System Fit: Universal application for RV baggage doors, marine engine hatches, and industrial toolboxes.
Installation Notes: Features 10mm composite ball sockets with easy-release clips for tool-free snapping onto standard ball studs.
Performance Insight: Nitrogen gas charged to 45 lbs, providing the ideal balance of lift assist for medium-weight compartment doors and utility hatches.
Selling Brand: R&P Carriages / Verified Aftermarket
Application Reference: Any OEM names (SPD, Titan, AVM) in this listing describe compatibility, fitment target, or application style only where supported by verified dimensions and 10mm mounting points.
What This Means: This listing is for a high-quality aftermarket gas spring, not a guaranteed OEM-branded item from SPD or AVM.
Before Ordering: Verify the extended length (18.50"), pressure rating (45 lbs), and ball stud size (10mm) before installation.
When a door fails to stay open or feels excessively heavy, the nitrogen charge has likely leaked. Check for oily residue on the rod, which indicates seal failure.
Treated rod surface offers enhanced durability and a sleek, all-black professional look with superior corrosion resistance.
Constructed with an annealed steel rod and a heavy-gauge steel pressure tube for long-lasting service in harsh environments.
Universal all-composite sockets fit standard ball studs found on most trailers, RVs, and marine applications.
Precision engineered to match the dimensions and pressure specs of major OEM brands like SPD and Titan.
| Specification | Detail |
|---|---|
| Part Number | LGP6-185-45 |
| Force Rating | 45 lbs |
| Extended Length | 18.50" (Center-to-Center) |
| Compressed Length | ~11.25" |
| Stroke Length | 7.25" |
| Rod / Tube Ø | 6mm Rod / 15mm Tube |
| End Fittings | 10mm Composite Ball Sockets |
| Category | Details |
|---|---|
| RV & Camper | Exterior baggage and compartment doors |
| Marine | Engine hatches, bait wells, and lockers |
| Industrial | Truck toolboxes, kiosks, and access panels |
| Cross-Ref | SPD GSNI-5250-45, Titan GN6-185-45, AVM SE725APE45 |
| Quantity | Item |
|---|---|
| 1 | Heavy Duty Gas Strut (45 lbs / 18.5") |
| 2 | Pre-installed 10mm Composite Ball Sockets |
| 2 | Easy-Release Safety Clips |
Selected products are added together. Review the cart and verify kit contents to prevent duplicates. Prices and discounts are determined at checkout.
Have your SKU or manufacturer part number, photos of the original part and mounting, and any critical measurements ready. Capacity, voltage, or bolt pattern can help too.
815-357-3292 · 270 E Jackson St · Seneca, IL 61360
Customer feedback summarized from Google and Yellow Pages. Dates are shown where available.
Ordered trailer repair parts repeatedly; praised fast service, careful packing, and accurate orders.
Found the correct RV keys at a good price with free shipping; the keys worked as expected.
Needed an unusual axle and leaf-spring size; the team listened and helped him sort out the fit.
Praised the OEM and aftermarket selection, discounts, quick shipping, and friendly parts staff.
Got the axle he needed right away, set up with a custom spring perch.
Praised the polite staff and quality welding on a project.
Replacement struts brought a long-used door back to working order.
Had a trailer built to his needs at a fair price, then found parts for two other trailers in stock.
Praised the customer service after working with R&P over several years.
Found the gas shock he wanted at a good price with shipping included.
Received swivel D-rings with backing plates and praised the price, correct order, and service.
The right parts arrived the first time, with fast delivery and helpful staff.
Said project advice and prompt shipping helped finish a trailer project.
Reported helpful service and fast shipment to Germany.
Praised a suspension kit, fair pricing, and good parts.
Was pleased with a replacement trailer cord.
Noted dependable service and products across repeat visits.
Said the axle installation fit perfectly and thanked Josh and the crew.
Praised the crew’s professionalism during a difficult hitch replacement.
Liked the product, price, communication, and shipping.
Said the product description explained what would work for the trailer.
Received the item as described with very fast shipping and plans to return.
Praised accurate description, quick shipping, and clear communication.
Was happy with the product and its price.
Called it a pleasure doing business with R&P.
Was pleased with product quality, quick delivery, and an easy installation.
Was enthusiastic about the products.
Was ready to install the product on every trailer they own.
Expected to buy again after a good experience.
Reported that the newly installed parts were working perfectly.
Said things went well, as they had on previous visits.
Praised clear communication and fair value.
Said the transaction went as expected.
Noted good value, careful packing, and fast shipping.
Found the team professional and easy to work with.
Praised fast shipping and good communication.
Shared appreciation for the owners and their company.
Reported prompt shipping and said they would buy again.
Found R&P easy to deal with.
Praised the people and the service.
Reported a good fit, fair price, accurate listing, and quick shipping.
Received the order a day early and recommended the seller.
Described a no-hassle, professional custom-trailer purchase.
Praised a new trailer, custom additions, helpful staff, and clear pricing.
Found the right hub covers quickly and got helpful maintenance advice.
Said R&P helped their company get back on the road after an axle problem.
Was happy with a dump-trailer purchase after comparing options.
Received clear help choosing brake assemblies and bearing seals, followed by fast shipping.
Found a good deal on a 16-foot dump trailer and planned to return.
Thanked the staff for their patience and recommended the shop.
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R&P Knowledge Hub
Review this gas spring or compare another SPD / GSNI spring by extended length, family and force rating.
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.