Electric Recliner Spare Parts, Mechanism
Electric Recliner Action Std Mechanism Only
$395.00
In stock
Replacement Leggett & Platt 5331 (400EZ series) electric recliner mechanism kit, suits 500 mm seat width. Heavy-gauge black powder-coated steel with close-to-wall design and 181 kg weight rating. Supplied as a flat-pack kit with all parts required to assemble a new mechanism (excluding electrics). DIY-friendly assembly with just a socket set in around 30 minutes. Universal Electric Recliner Replacement Mechanism. Standard 500 mm seat width fits most recliner chairs and lounges with this industry size, measured between inside seat rails. Compatible with other brands’ frames though minor modifications may be required. Need Electrics or Wider Size? We also stock the complete kit including electrics, plus a wider 700 mm seat width version. See our full catalogue of recliner mechanisms (click here), or contact us if you need help identifying the right one. read more
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- Description
- Technical Specifications
- How To Tutorial
- What's in the Box
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- FAQs
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Description
Universal 500 mm Recliner Mechanism – Flat Pack Kit
This genuine Leggett & Platt 5331 (400EZ series) recliner mechanism is built from heavy-gauge black powder-coated steel with self-lubricating Delrin™ bushes and machine-pressed rivets for long-lasting performance. Designed as a close-to-the-wall, metal-to-the-floor action, it delivers smooth reclining without the chair needing to move far from the wall. Rated to 181 kg total weight (including furniture), it safely supports occupant use up to 160 kg.
Supplied as a flat-pack kit with all structural parts included (electrics not supplied), this mechanism is suitable for left- or right-side installations and can be fitted into single recliners, twin recliners, 3-seaters, or sectional lounge setups when used with a linking system.
Measuring Your Seat Frame Width
To confirm compatibility, measure the seat frame width between the inside edges of the timber or metal rails that run front-to-back of the chair. This kit fits a 500 mm width. If your seat width measures wider, see our 700 mm version (click here).
What’s Included in the 52-Piece Base Kit
Our standard 5331 kit comes complete with everything you need to assemble a full working mechanism (electrics not included). You will receive:
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2 x Side actions
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3 x Stabiliser bars
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2 x Base bars
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4 x Feet with nuts
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1 x Drive shaft and support brace
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2 x Back rest KD brackets (fasteners not supplied)
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1 x Pair of drive link brackets
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Actuator end brackets with nuts and bolts
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All additional bolts, nuts, and springs as required
Why Replace a Recliner Mechanism?
Over time, mechanisms can bend, bow, or loosen at the rivets, causing uneven or failed reclining action. Replacing the entire mechanism restores full structural integrity and functionality. This universal kit is suitable as a direct replacement for Leggett & Platt and many other branded mechanisms of similar geometry.
DIY Friendly – Assemble and Save
Supplied flat pack, this mechanism requires basic handyman skills to assemble. Basic instructions are included and all parts are supplied. With only a socket set, you can build and install this mechanism in about 30 minutes. By doing it yourself, you can save $$$ on costly repairs and enjoy the satisfaction of restoring your furniture.
Technical Specifications
Technical Specifications
Technical Specifications
- Brand / Series: Leggett & Platt 5331 – 400EZ Series
- Seat Width Compatibility: 500mm (measured between the inside edges of the seat rails)
- Weight Capacity: Rated to 181kg total load including furniture. Suitable for occupant use up to 160kg
- Design Features: Close-to-wall, metal-to-the-floor heavy-duty recliner mechanism
- Construction: Heavy-gauge black powder-coated steel
- Pivots & Fasteners: Self-lubricating Delrin™ bushes and machine-pressed steel rivets
- Assembly: Supplied as a flat-pack kit requiring socket set tools. Approximate assembly time: 30 minutes
- Included in Kit: 2 x side actions, 3 x stabiliser bars, 2 x base bars, 4 x feet with nuts, 1 x drive shaft & support brace, 2 x backrest KD brackets, pair of drive link brackets, actuator end brackets with nuts & bolts, plus all additional bolts, nuts & springs
- Electrics: Not included in this version (available separately as a full kit upgrade)
- Installation: Suitable for left or right side installation. Can be fitted into single recliners, twin recliners, 3-seaters, or sectional lounges (linking system not supplied)
- Assembly Instructions: Not supplied – intended for users with basic handyman skills
How To Tutorial
How To Tutorial
Assembly Instructions – 500mm Universal Leggett & Platt Recliner Mechanism (No Electrics)
Tools required: Socket set with 13mm socket, spanner, screwdriver, pliers (for zip ties).
Assembly time: Approx. 30 minutes.
Important: Assemble the mechanism outside the chair frame. Fit the actuator and electrics before installing into the furniture. KD backrest brackets are only fitted or adjusted at the final stage.
Step One – Lay Out and Identify Parts
- 2 × side actions
- 2 × base bars
- 3 × stabiliser bars (2 with flat ends for front/rear, 1 with 90° folded ends for centre)
- 1 × square drive shaft
- 1 × support brace
- Pair of drive link brackets
- 1 × actuator end bracket
- 4 × glide feet with lock nuts
- All bolts and nuts supplied (no washers required)
Step Two – Assemble the Base Frame
Position the base bars between the side actions. Use 4 × 13mm bolts (2 each side) in the second set of holes, not the ones nearest the edge. Leave finger-tight until alignment is complete.
Step Three – Fit the Stabiliser Bars
Install the flat-ended stabiliser bars at the front and rear. Install the stabiliser with 90° folded ends in the centre position just behind where the drive shaft will sit. Each stabiliser uses 4 × 13mm bolts (2 each end).
Step Four – Install the Drive Shaft and Support Brace
Slide the square drive shaft through the centre pivot holes of the side actions. Position the support brace over the shaft and fit the drive link brackets. Use 4 × 32mm bolts in the 4 holes nearest the centre and 4 × 25mm bolts in the outer holes.
Important: Before tightening, ensure the side actions are in the fully retracted position. The support brace must face downwards toward the floor, with the hex bolt heads pointing upward into the seat cavity. Adjust if necessary, then tighten all bolts securely.
Step Five – Attach the Actuator End Bracket
Fix the actuator end bracket to the front base frame using 4 × 16mm bolts and 4 × lock nuts.
Step Six – Fit Glide Feet
Install the 4 × glide feet with lock nuts after the mechanism is fully assembled. Tighten securely.
Step Seven – Fit the Actuator and Electrics
Attach the actuator between the front actuator bracket and the drive link brackets. Ensure the actuator is fully retracted, the mechanism is fully retracted, and the drive link brackets are correctly positioned so the mechanism will fully open and close. Once aligned, tighten fixings, connect wiring and switch, and secure all cables with zip ties (not supplied).
Step Eight – Install the Mechanism into the Furniture
Place the complete mechanism with actuator and electrics fitted into the chair frame. Secure it to the seat rails using the pre-drilled holes, ensuring correct alignment.
Step Nine – Fit or Adjust KD Backrest Brackets
Once the mechanism is installed, fit the KD backrest brackets. Replace or adjust only if your furniture requires a different angle or style.
Step Ten – Final Checks
Test the recliner through its full range of motion. Ensure smooth operation with no fouling. Confirm all bolts are tight and all cables are safely secured with zip ties.
What's in the Box
What's in the Box
What’s in the Box?
This 500mm wide Leggett & Platt 5331 Universal Recliner Mechanism Kit (supplied without electrics) includes all structural components and fittings needed to assemble the mechanism.
- 2 x Side actions
- 3 x Stabiliser bars
- 2 x Base bars
- 4 x Feet with nuts
- 1 x Drive shaft and support brace
- 2 x Backrest KD brackets (fasteners not supplied)
- 1 x Pair of drive link brackets
- Actuator end brackets with nuts and bolts
- All required bolts, nuts, and springs
Please note: This version does not include motor, actuator, cabling, or switch components.
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FAQs
FAQs
What size recliner mechanism is this?
This is a 500mm seat width mechanism. Seat width is measured between the inside edges of the chair’s side rails. We also sell a 700mm version if your chair requires a wider frame.
Can I change my manual recliner to electric with this mechanism?
Yes, you can convert a manual recliner to electric using this mechanism. However, the old recliner release handle will no longer be used and will remain redundant once converted.
Do you sell the electrics as well?
Yes, we stock all the electrics including actuators, power supplies, cables and switches, which can be purchased separately.
Can I buy the full kit including electrics?
Yes, we also sell the complete universal kit with electrics included. This is a ready-to-install package with the motor and wiring already supplied.
I need a wider size, what other options are available?
Alongside this 500mm version, we also sell a 700mm seat width mechanism. Check your seat frame measurement to select the correct size for your recliner.
Do you sell this mechanism already assembled?
No, this mechanism is only supplied flat pack. It requires basic handyman DIY skills to assemble using standard tools such as a socket set and spanner.
