RV Hydraulic Jack Repair — Component-Level Rebuild Work
The individual hydraulic jack under your RV is a hydraulic cylinder mounted through your coach frame. When it leaks, gets damaged, or fails mechanically, the fix is either rebuild or replace that specific component — not the whole leveling system. Ames Hydraulics does rv hydraulic jack repair as a bench-cylinder rebuild the same way we rebuild any other hydraulic cylinder: pull the jack, disassemble, hone the barrel, install new seals, replace the rod if needed, pressure test, and reinstall. It’s a routine hydraulic-cylinder rebuild in an RV package, and it’s our shop’s core specialty across every hydraulic application.
When You Need RV Hydraulic Jack Repair (Not System Repair)
The distinction matters. Rv hydraulic jack repair is component-level work on individual jack cylinders. Full system repair covers the pump, control valves, plumbing, and control panel across the whole leveling system. Both often show up on the same coach, but the diagnostic and fix are different. Sometimes you have a bad single jack (only one leaks, only one won’t extend, only one is physically damaged from ground strike). Sometimes you have a bad pump or valve affecting all jacks equally. And sometimes you have both. The diagnostic figures out which — then we quote the right repair.
Symptoms that point specifically to rv hydraulic jack repair rather than system repair:
- One corner of the coach sinks overnight while the others hold — that jack’s rod seal is leaking
- One jack doesn’t extend while others work normally — that jack’s cylinder has internal failure or the hose to it is failed
- One jack has visible damage from ground strike — bent rod, damaged mounting, cracked cylinder body
- Fluid puddle appears only under one corner of the coach
- One jack extends slowly while others move at normal speed — internal cylinder leakage past seals
How We Rebuild An RV Hydraulic Jack
Standard rv hydraulic jack repair procedure at our shop:
- Diagnose the specific failure. Test the coach’s hydraulic system to isolate the problem to one jack, one hose, or system-wide.
- Remove the jack. Support the coach on jackstands, disconnect the hose(s) to that jack, remove mounting bolts, and pull the jack cylinder.
- Bench inspection and disassembly. Take the cylinder apart on the bench, inspect the rod for pitting or bending, inspect the barrel for scoring, evaluate whether the cylinder is rebuildable or needs replacement.
- Rebuild. Hone the barrel to remove light scoring, install new seals (rod seal, piston seal, wiper), replace the rod if damaged, replace hardware, and reassemble with fresh hydraulic fluid.
- Pressure test. Test the rebuilt cylinder on the bench at working pressure — catches any residual leaks before we put it back on the coach.
- Reinstall on the coach. Bolt the jack back in, reconnect hoses, bleed air out of the system, and cycle the leveling system multiple times to confirm operation.
Related Structural Repair Around RV Hydraulic Jacks
Sometimes rv hydraulic jack repair reveals structural issues around the jack mount. The mounting bracket that welds or bolts the jack to the frame takes serious load every time the coach levels. Cracked mounting brackets, elongated bolt holes, and fatigue at the weld are common on older coaches. When we find this, we do the structural repair before reinstalling the rebuilt cylinder — welding, plate reinforcement, or bracket replacement. See RV aluminum welding for the structural side.
Jacks that hit rocks, curbs, or the ground during travel with the system down get bent rods and damaged mounts. Repair path: replace the rod (if a factory replacement is available or a shop-machined equivalent), weld any damaged mount reinforcement, and re-rebuild the cylinder. Not every damaged jack is worth rebuilding — sometimes replacement is the honest recommendation.
RV Hydraulic Jack Repair Cost Ranges
- Diagnostic on the coach to isolate which jack: 1 shop hour
- Standard rv hydraulic jack repair (seal rebuild): starts around $300; typical $400–$700 per jack
- Rod replacement (if pitted or bent): add $150–$400 per jack
- New hydraulic hose to jack (fabricated): $80–$250
- Bracket weld or reinforcement: $150–$500
- Complete jack replacement (when rebuild isn’t viable): $500–$1,800 per jack depending on brand and size
Common RV Jack Brands We Rebuild
The jacks under your coach are usually one of these brands (identical rebuild methodology across all):
- Lippert (LCI). Level-Up, Ground Control, and older Lippert-branded jacks. Very common on modern coaches.
- HWH. Both AP (bi-axis) and joystick-controlled AP systems. Common on higher-end motorhomes.
- Power Gear. Older brand, still common on 5–15-year-old coaches. Rebuildable.
- Equalizer. Similar package to Lippert, rebuildable with generic seal kits.
- Bigfoot. Compact hydraulic jack systems, straightforward rebuild.
- RVA (Roadmaster). Higher-end motorhome brand.
- Ricon and other legacy brands. Older motorhome jacks — still rebuildable in most cases.
Related Ames Hydraulics Pages
- RV Leveling System Repair (system-level)
- RV & Camper Repair (hub)
- RV Slide Out Repair
- Hydraulic Cylinder Rebuild (same benches)
- RV Aluminum Welding
RV Hydraulic Jack Repair FAQ
How long does one rv hydraulic jack repair take? Usually 1–3 shop days from removal to reinstall, assuming standard seal kit is on-hand.
Should I rebuild all four jacks at once? If the coach is 10+ years old and one has failed, doing all four now is often cheaper than doing them one at a time as each fails over the next 2–3 years. Same shop trip, same setup.
Are aftermarket seals as good as factory? On mainstream brands, yes — hydraulic seal manufacturers make excellent generic kits. On very-specific proprietary designs, sometimes factory-only.
What if my jack rod is bent from a ground strike? Straightening a bent rod usually doesn’t hold. Better to replace the rod or replace the cylinder assembly.
Do you handle jack replacement (not just repair)? Yes, when repair isn’t viable — we source the replacement and install.
Get RV Hydraulic Jack Repair Scheduled
Call or text 515-292-2599. Ames Hydraulics, 3223 South Duff Avenue, Ames, Iowa. Individual-jack rv hydraulic jack repair and rebuild on our own hydraulic cylinder benches — the same shop that rebuilds heavy-equipment cylinders scales down cleanly to RV leveling jacks.
Written by Josiah Ragsdale
Owner, Ames Hydraulics — Ames, Iowa
Josiah owns and operates Ames Hydraulics. He has worked on hydraulic and heavy equipment since he was 18, and every hydraulic cylinder his shop rebuilds is pressure tested before it ships back to the customer. More about Josiah →
Got something broken? Call or text 515-292-2599