Electric Recliner Spare Parts, Mechanism
Electric Recliner Drive Shaft 543mm Long
$45.00
In stock
Replace a bent or twisted drive rod in minutes with our 543 mm long electric recliner mechanism shaft/rod. Measures 543mm × Ø 12.7mm (21.4" × ½ inch) and comes pre-drilled with 8 holes—2 outer holes for the swing arms plus 6 inner holes for the support brace and motor drive-link brackets. Built to Leggett & Platt 5331 series dimensions yet marketed as a universal torque tube that also fits RMT and other 5331-pattern actions; steel can be trimmed or re-drilled for custom widths. Universal 543mm Drive Shaft/Rod. A straight swap into most “400 EZ/5331” metal-to-the-floor recliners. Re-use your original bolts or upgrade to our complete Drive Shaft & Support Brace Kit (click here) for a factory-fresh repair in one go. Need Another Length or Extra Parts? Browse our full range of electric recliner mechanism spares (click here) or chat with us if you’re unsure which rod, brackets or actuator suits your chair, our DIY support is just a call away. read more
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- How To Tutorial
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Description
Universal 543 mm Drive Rod / Shaft for Electric Recliners Mechanisms
Built from high-tensile, cold-drawn steel tube, this torque shaft measures 543 mm long × Ø 12.7 mm (21.4 in × ½ in). Eight factory-drilled holes are positioned for a direct swap: two outer holes bolt to the swing arms, and six inner holes locate the motor drive-link brackets and any centre support brace. Supplied bare so you can reuse your existing hardware for a fast, factory-spec replacement.
Leggett & Platt Dimensions, RMT Compatibility & More
Originally engineered for Leggett & Platt’s 5331 “400 EZ” metal-to-the-floor action, this shaft/rod is also a direct fit for mechanisms branded RMT, Tranquil, Okin-style clones and other frames that copy the 5331 geometry. Check the model sticker on the metal chassis or simply confirm your old tube is ~543 mm end-to-end and ½” in diameter.
Bent Support Brace or Worn Bolts? Upgrade for a Stronger Repair
A bent brace or elongated bolt holes often hide behind a twisted shaft. If yours shows any damage, consider fitting a new brace and fresh Grade 8 bolts at the same time for maximum rigidity—see our Drive Shaft & Support Brace Upgrade Kit (click here) for an all-in-one solution.
Australia’s Leading Supplier of Recliner Spares & DIY Repair Kits
At Sofa Rehab we stock the most comprehensive range of genuine and quality-tested replacement parts in the country—from drive shafts and complete mechanisms to leather repair kits and upholstery supplies. Every item ships from our Brisbane warehouse for fast delivery nationwide (and to 40+ international destinations).
Do It Yourself and Save Time & Money
Replacing the drive rod is a straightforward 15-minute job that needs only a 13 mm spanner. Unplug the chair, remove the eight bolts, swap the shaft/rod, reinstall the bolts and you’re done. Follow our step-by-step guide in the “How To Tutorial” tab or watch the video. No prior experience required—feel the satisfaction of a job well done and the dollars saved!
Got questions about fitment or customising the length? Our support team of furniture-repair pros is just a call or chat message away.
Technical Specifications
Technical Specifications
Technical Specifications
- Overall Length: 543 mm (≈ 21.4 in) measured tip-to-tip.
- Outer Diameter: 12.7 mm (½ in) square, cold-drawn steel tube.
- Total Holes: 8 pre-drilled (2 outer, 6 inner).
- Hole Pattern: • Outer pair – 10 mm from each end, Ø 7 mm* for swing-arm bolts.
• Next-inboard pair – Ø 7 mm* for support-brace ears.
• Four central holes – Ø 7 mm* set in symmetrical pairs for motor drive-link brackets.
*Holes supplied “bolt-through” and un-threaded so you can reuse your original M6/M8 hardware. - Material & Finish: High-tensile carbon steel, anti-corrosion phosphate coating (black).
- OEM Reference: Leggett & Platt 5331 series (“400 EZ”) drive shaft / torque tube.
- Cross-compatible Frames: RMT, Tranquil Motion, generic 5331-pattern imports, and any custom build that matches the 12.7 mm tube & hole geometry.
- Customisation: Tube can be cut shorter with a hacksaw and re-drilled for bespoke widths or bracket positions.
- Supplied Hardware: None (reuse existing bolts or upgrade to our full mechanism kit).
- Warranty: 12 months against manufacturing defects when used in normal residential seating.
How To Tutorial
How To Tutorial
Step-by-Step Replacement Instructions
- Disconnect Power & Clear the Area
Unplug the recliner from the wall socket and remove any batteries from a backup kit. Move the chair onto a flat, non-slip surface with plenty of room to work. - Flip & Support the Chair Safely
With a helper, lift using your legs, not your back, and roll the recliner forward onto its arms so the mechanism faces up. Wedge two sturdy blocks or cushions under the backrest to stop it rocking. - Snap a Reference Photo
Before touching anything, take clear photos of the existing drive rod, bolt locations and cable routing. These images are invaluable if you forget which hole goes where during reassembly. - Remove the Old Drive Rod
Using a 13 mm socket or spanner, undo the two outer bolts (swing-arms) followed by the six inner bolts (support brace + drive-link brackets). Lift out the bent or twisted rod. - Transfer Brackets (If Required)
Inspect your brackets and support brace. If they’re sound, bolt them onto the new shaft/rod in the same hole positions. If damaged or bent order replacements from Us! - Install the New Shaft/Rod
Slide the rod into place, aligning the outer holes first. Insert and finger-tighten the swing-arm bolts, then the brace/drive-link bolts. Ensure all brackets sit square and flush. - Tighten & Torque
Working from the centre outwards, tighten all eight bolts firmly (≈ 18–22 Nm for M8 Grade 8). Do not overtighten—crushed brackets will bind the mechanism. - Function-Test Before Uprighting
Plug the chair back in, operate the recline button and confirm both sides move together without clunks. Unplug again once satisfied. - Return the Chair to Upright Position
With the same safe-lifting technique and your helper’s assistance, roll the recliner back onto its feet. - Final Checks & Clean-Up
Reconnect power, perform a full open/close cycle, and re-check bolt tightness after the first use. Dispose of the old bent rod responsibly (scrap metal recycling is ideal).
Tip: Keep those reference photos on your phone—handy if you ever need to service the mechanism again!
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FAQs
FAQs
How do I confirm a 543 mm shaft is the right size for my recliner?
Measure your existing rod end-to-end while the mechanism is closed; it should read about 543 mm (21.4 "). If the old tube is missing or too bent to measure, look for a white metal tag riveted to the chassis—if it lists “Model 5331” (or a part number beginning 5331-xxxxx-xxx) this shaft is the correct length.
Which brands and mechanisms does this drive rod fit?
It’s built to Leggett & Platt 5331 “400 EZ” geometry but also drops straight into many frames sold under other names—RMT, Tranquil Motion, StarkLine, and several un-branded imports used by La-Z-Boy-branded recliners in Australia. If your mechanism uses a single motor with a round ½″ torque tube and the tag shows “5331”, you’re safe.
Are bolts, brackets or the centre brace supplied with the rod?
No—this listing is shaft-only so you can reuse your existing hardware. If your support brace is bent or the bolt holes are ovalled, upgrading to our Drive Shaft & Support Brace Kit (click here) gives you a new brace and Grade 8 bolts in one box.
Can I cut the tube shorter or drill extra holes?
Yes. The shaft is cold-drawn carbon steel and can be trimmed with a hacksaw and a vice, then re-drilled to 7 mm for M6/M8 bolts. Deburr the cut end, wipe away swarf and apply a dab of oil or paint to stop rust—no loss of strength for domestic seating.
What tools and how much time will I need to install it safely?
A 13 mm socket or spanner, a friend to help flip the chair, and about 15 minutes. Unplug power, lift with your legs (not your back), photograph the mechanism for reference, remove eight bolts, swap the rod, re-bolt, and test. Full step-by-step instructions with safe-lifting tips are in the description’s “How To Tutorial” tab.
