RV pop top gas strut replacement is needed when the roof becomes hard to lift, sags after opening, drops in cold weather, rises unevenly, or no longer stays fully supported. The right replacement strut must match the camper model, mounting points, extended length, compressed length, end fittings, roof weight, and original lift design.
A pop top roof is heavier than it looks. Gas struts help lift and hold that weight so one person can set up camp without fighting the roof every time. When the struts wear out, the roof can become awkward, unsafe, and frustrating to use. Replacing them with the correct parts restores lift assistance and helps protect the roof, canvas, hinges, seals, and hardware.
What Pop Top Gas Struts Do
A gas strut is a sealed lift support filled with pressurized gas. On a pop top camper, it assists the roof as it opens and helps hold the roof up once raised. It does not replace the hinges, latches, canvas, or roof frame. It simply supports the lift motion and reduces the effort required.
Most pop top roofs use multiple struts so the load is shared. If one strut weakens, the roof may twist, sag, or become harder to lift on one side. If all struts are tired, the roof may feel heavy even when nothing obvious looks broken.
| Part | Job |
|---|---|
| Gas strut body | Contains the pressurized gas and internal piston |
| Rod or shaft | Extends and compresses as the roof moves |
| Ball socket or end fitting | Connects the strut to the mounting studs |
| Retaining clip | Helps keep the socket secured to the mount |
| Roof mount | Transfers lift force to the pop top roof |
| Lower mount | Anchors the strut to the camper body or frame |
A healthy strut should move smoothly, support the roof evenly, and hold its force without leaking oil or collapsing under normal roof weight.
Signs Your RV Pop Top Gas Struts Need Replacement
The Roof Is Hard to Lift
The most common sign is extra effort during setup. If the roof used to rise smoothly but now needs a hard push, the gas struts may have lost pressure.
The Roof Sags After Opening
A pop top roof should stay properly raised. If the canvas looks loose, the roof sits low, or one corner dips, weak struts are likely.
The Roof Drops in Cold Weather
Gas pressure can be affected by temperature. A worn strut may seem acceptable in warm weather but fail to support the roof when temperatures drop.
The Roof Opens Unevenly
If one side rises faster than the other, one or more struts may be weaker than the rest. Uneven lift can stress hinges, canvas, and mounting brackets.
You See Oil on the Strut
Visible oil on the strut body or shaft usually means the seal has failed. A leaking gas strut should be replaced.
The Shaft Is Rusted or Damaged
Rust, pitting, dents, or bending can damage the seal and reduce strut life. Off-road dust, salt air, mud, and water exposure make this more likely.
You Added Weight to the Roof
Solar panels, roof racks, antennas, vents, and other accessories add load. If the roof became harder to lift after an upgrade, the original struts may no longer be sufficient. For solar-related planning, RV Parts Giant’s guide to choosing the right Victron MPPT charge controller for RV solar is a useful companion because roof upgrades and electrical upgrades often happen together.
Why Fitment Matters
Pop top gas struts are not universal. A strut that is too weak will not hold the roof. A strut that is too strong may make the roof hard to close or place extra stress on mounts and hinges. A strut with the wrong length or end fitting may not install safely at all.
Before buying replacement struts, confirm:
| Fitment Point | What to Check |
|---|---|
| Camper model | Confirm the strut is made for your camper |
| Extended length | Length when fully open |
| Compressed length | Length when closed or nearly closed |
| End fitting type | Ball socket, eyelet, or other mount style |
| Mounting stud size | Must match the socket |
| Force rating | Must suit roof weight and design |
| Quantity | Replace the correct number of struts |
| Roof accessories | Solar, racks, and vents add weight |
| Left/right layout | Some installations may have orientation requirements |
RV Parts Giant carries the Pop top Gas Strut - HQ12, which is designed for HQ12 applications and intended for RV use. It is the right product to review if you own a compatible HQ12 pop top and need a model-specific replacement instead of guessing with a generic strut.
OEM-Style Strut vs Universal Gas Strut
Universal gas struts can work in some situations, but they require careful measuring and force matching. OEM-style or model-specific struts reduce guesswork because they are selected for the camper’s original design.
| Option | Pros | Cons |
|---|---|---|
| OEM-style replacement | Better fit confidence, fewer measurements, model-matched | May be specific to one camper model |
| Universal strut | Flexible and widely available | Requires accurate length, force, and fitting match |
| Custom-rated strut | Useful after roof weight changes | Requires more technical calculation |
| Re-gassed old strut | May work in some cases | Not always practical or reliable |
For an HQ12 owner replacing tired roof lift supports, the model-specific Pop top Gas Strut - HQ12 is usually a cleaner choice than trying to match a generic gas spring by eye.
Should You Replace One Strut or All of Them?
In many cases, pop top gas struts should be replaced in pairs or as a matched set. If one strut has failed from age, the others may be close behind. Mixing one new strong strut with older weak struts can make the roof lift unevenly.
Replace multiple struts when:
| Situation | Why It Helps |
|---|---|
| Roof rises unevenly | Balanced lift prevents twisting |
| Struts are the same age | Wear is likely similar |
| One strut is leaking | Others may soon fail |
| Roof feels heavy overall | All struts may be weak |
| Preparing for remote travel | Reduces failure risk |
| Roof accessories were added | Load should be supported evenly |
Replacing only one strut may make sense if the others are nearly new and one was damaged by an isolated incident. For most aging pop top roofs, matched replacement is the safer habit.
Safety Before Working on Pop Top Gas Struts
Gas struts store force. Pop top roofs are heavy. Treat the job with respect.
Before removing a strut:
| Safety Step | Why It Matters |
|---|---|
| Work with another person | Roof control is easier and safer |
| Support the roof physically | Prevents sudden roof drop |
| Use stable blocking | Do not rely on the old strut |
| Keep hands clear of pinch points | Roof and strut can move suddenly |
| Avoid forcing misaligned parts | Can damage mounts or clips |
| Wear eye protection | Retaining clips can spring free |
| Do not puncture or heat struts | Pressurized parts can be dangerous |
Do not remove a gas strut and then assume the roof will stay up. Support the roof first with a solid prop, helper, or safe lift method.
Step-by-Step Pop Top Gas Strut Replacement Overview
This overview is for planning. Always follow the camper manufacturer’s service procedure and use safe support methods.
1. Identify the Existing Strut
Look for labels, part numbers, force markings, length, and end fitting style. Take photos before removal. Photograph the strut extended, the upper mount, the lower mount, and the retaining clip orientation.
2. Support the Roof
Raise the pop top and support it with stable blocking or a secure prop. The roof should not depend on the strut you are about to remove.
3. Remove Load From the Strut
If the strut is under heavy load, adjust roof height slightly so the end fitting is not binding. Do not pry against fragile roof or wall material.
4. Release the Retaining Clip
Many ball-socket gas struts use a small metal retaining clip. Use a small flat tool carefully to release the clip enough to remove the socket. Do not bend the clip more than needed.
5. Remove the Old Strut
Pop the socket off the ball stud at one end, then the other. Be prepared for the strut to extend or shift as it comes free.
6. Compare Old and New Parts
Before installing, compare length, socket type, mounting orientation, and general fit. If something looks different, stop and verify fitment.
7. Install One End First
Attach one end of the new strut to the correct mount. Make sure the socket seats fully on the ball stud.
8. Align the Other End
You may need to lift or lower the roof slightly to align the second socket. Some struts require careful compression to fit. Use safe, controlled methods and keep fingers clear.
9. Confirm Retaining Clips Are Seated
A clip that is only half engaged can let the socket come loose. Check each end.
10. Repeat for Other Struts
Replace the matching strut or full set as needed. Keep roof support in place until the new struts are installed and checked.
11. Test Slowly
Raise and lower the roof slowly. Watch for binding, uneven lift, loose clips, mount movement, or canvas pinching.
Installation Tips for a Cleaner Job
Replace Struts With the Roof Raised and Supported
This usually gives better access and helps avoid fighting the full roof weight. The key is safe support.
Do Not Remove Mounting Studs Unless Needed
If the ball studs are in good condition and match the replacement strut, avoid unnecessary removal. Disturbing roof or wall mounts can create alignment or sealing problems.
Keep Clips Square
Retaining clips should sit properly through the socket. A bent or half-seated clip can fail later.
Watch the Canvas
After installation, close the roof carefully and check that the canvas, tent fabric, seals, and wiring are not being pulled or trapped.
Check Both Sides
The roof should lift evenly. If one side rises faster or sits higher, inspect strut fitment, roof load, hinges, and mounts.
Recheck After the First Trip
Road vibration can expose loose mounts or clips. Inspect the struts after your first tow and after rough-road travel. RV Parts Giant’s off-road camper maintenance checklist is a helpful related guide for building that inspection habit.
Common Mistakes to Avoid
Buying by Length Only
Length matters, but force rating, compressed length, socket type, and mounting layout matter too.
Installing a Stronger Strut Without Thinking
More force is not always better. A too-strong strut can make the roof hard to close or stress brackets.
Replacing Only the Worst Strut
One new strut can overpower older weak struts and create uneven lift.
Working Without Roof Support
This is the big one. A pop top roof can drop or twist when a strut is removed. Always support it.
Ignoring Added Roof Weight
Solar panels and racks change the load. If the roof was modified, evaluate the whole lift system.
Forgetting to Check the Mounts
A new strut will not fix cracked, loose, bent, or corroded mounting points.
Forcing a Misaligned Socket
If the socket does not line up, adjust roof position carefully. Do not pry hard against the roof frame.
Troubleshooting After Replacement
Roof Is Still Hard to Lift
Possible causes include wrong force rating, binding hinges, added roof weight, canvas tension, damaged mounts, or only some struts being replaced.
Roof Is Hard to Close
The struts may be too strong, installed incorrectly, or binding. Added friction in hinges or canvas folding issues can also contribute.
Roof Rises Unevenly
Check that all struts are matched, installed in the correct locations, and fully clipped. Also inspect roof load distribution and hinge alignment.
A Strut Pops Off the Mount
The retaining clip may not be seated, the socket may be worn, or the ball stud may be damaged. Do not use the roof until the connection is secure.
Roof Sags on One Corner
Inspect the strut on that corner, the mounting brackets, the roof frame, and any added accessory weight.
Canvas Looks Loose After Opening
Weak struts may still be present, or the roof may not be reaching full height. Check lift height and strut extension.
Pop Top Gas Struts and Roof Accessories
Roof accessories are a common reason gas struts start feeling underpowered. Solar panels, roof racks, antennas, and vent fans may not seem heavy individually, but together they can change how the roof lifts.
Before adding roof equipment, consider:
| Accessory | Strut Impact |
|---|---|
| Solar panels | Adds fixed roof weight |
| Roof rack | Adds structure plus cargo potential |
| Vent fan | Adds weight and roof opening considerations |
| Antenna | Usually minor, but can affect clearance |
| Awning brackets | May affect side loading if roof-mounted |
| Storage gear | Can overload the lift system quickly |
If the roof was designed for a certain weight, adding permanent accessories may require reassessing the gas struts. Do not simply keep increasing strut force without checking roof, hinge, and mount strength.
Maintenance Tips for Longer Gas Strut Life
Keep Shafts Clean
Dirt and grit on the shaft can damage seals. Wipe struts gently with a clean cloth when dusty.
Avoid Pressure Washing Directly at Seals
High-pressure water can force dirt and moisture where they do not belong.
Inspect for Rust
Rust on the shaft can quickly damage the seal. Replace rusty or pitted struts before they fail completely.
Open and Close the Roof Periodically
If the camper sits for long periods, occasional operation helps you notice weak struts before a trip.
Check Mounts After Rough Roads
Off-road vibration can loosen brackets and hardware. Look for movement, cracks, and elongated holes.
Store the Camper Properly
Follow the camper manufacturer’s storage guidance. Long-term exposure to heat, moisture, and dirt can shorten component life.
Fitment Advice for HQ12 Owners
If you own a Black Series HQ12 or compatible pop top camper, use model-specific fitment rather than guessing. The Pop top Gas Strut - HQ12 is designed for HQ12 and for RV applications, making it the natural first product to check when the roof lift support is weak or worn.
Before ordering, confirm:
| Check | Why It Matters |
|---|---|
| Camper is HQ12 | Product is designed for that model |
| Existing mounts are intact | New strut needs solid attachment points |
| Roof has not been heavily modified | Added weight can affect lift needs |
| Quantity needed | Replace matched struts as required |
| End fittings match | Ensures safe installation |
| Roof operation is otherwise normal | Hinges and canvas should not be binding |
If the camper has been modified with significant roof weight, inspect the full roof lift system before assuming a standard replacement will solve every issue.
Product Recommendation From RV Parts Giant
Pop top Gas Strut - HQ12
RV Parts Giant’s Pop top Gas Strut - HQ12 is the key replacement part for this topic. It is listed as designed for HQ12 and designed for RV applications.
It is most relevant when:
| Situation | Why It Fits |
|---|---|
| HQ12 roof is hard to lift | Restores lift assistance |
| Roof sags after opening | Replaces tired lift supports |
| Original strut leaks or rusts | Addresses seal or shaft failure |
| Roof rises unevenly | Matched replacement can restore balance |
| Preparing for travel | Reduces setup frustration and failure risk |
Because pop top struts are model-sensitive, avoid installing a generic part unless you have confirmed length, force, mounting style, and roof load requirements.
Pros and Cons of DIY Pop Top Gas Strut Replacement
| Pros | Cons |
|---|---|
| Restores easier roof lifting | Roof must be supported safely |
| Can improve campsite setup speed | Struts store force and can be awkward |
| Helps roof sit at proper height | Wrong force can create problems |
| Good preventive maintenance item | Fitment must be exact |
| Simple tools may be enough in some setups | Two-person help is strongly recommended |
DIY replacement can be reasonable for careful owners with the correct parts and safe support. If roof mounts are damaged, the roof is heavy with accessories, or the struts are difficult to compress safely, use a qualified RV technician.
Expert Recommendation
For most RV owners, the best approach is to replace weak pop top gas struts before they fail completely. A roof that is already sagging or hard to lift is telling you the struts are no longer doing their job.
Use model-specific parts whenever possible, support the roof before removing anything, replace struts in matched pairs or sets, and inspect mounting points while the roof is open. If you have added solar or other roof accessories, consider the full roof weight and lift system rather than treating the struts as isolated parts.
A good pop top setup should lift smoothly, stay raised, close without excessive force, and keep the roof, canvas, and seals aligned.
FAQs
How do I know if my RV pop top gas struts are bad?
Common signs include a roof that is hard to lift, sags after opening, drops in cold weather, opens unevenly, or has struts with oil leaks, rust, or damaged shafts.
Should I replace pop top gas struts in pairs?
Yes, in most cases. Replacing struts in pairs or as a matched set keeps roof lift balanced and reduces twisting or uneven support.
Can I use a stronger gas strut on my camper roof?
Not always. A stronger strut may help with added roof weight, but too much force can make the roof hard to close or stress mounts and hinges. Match the strut to the roof design.
Is it safe to replace camper gas struts myself?
It can be safe for experienced DIY owners if the roof is properly supported and the correct parts are used. Because the roof is heavy and struts are pressurized, use caution and get help.
Why does my pop top roof lift unevenly?
Uneven lift can come from one weak strut, mismatched replacement struts, added roof weight, bent mounts, hinge issues, or canvas binding.
Do solar panels affect pop top gas struts?
Yes. Solar panels add roof weight, which can make the roof harder to lift and may shorten strut life if the original lift system was not designed for the added load.
Final Takeaway
RV pop top gas strut replacement makes campsite setup easier and helps the roof stay properly supported. If the roof feels heavy, sags, opens unevenly, or a strut leaks oil, inspect the lift supports before the next trip.
Choose the correct model-specific strut, support the roof before removal, replace matched struts together, and check mounts, clips, hinges, canvas, and roof accessories during the job. For compatible HQ12 campers, RV Parts Giant’s Pop top Gas Strut - HQ12 is the right replacement part to review when restoring smooth, safer pop top roof operation.