Wheelchair Parts

How Do You Locate the Right Wheelchair Parts?

Pinpoint the specific symptom across your frame, wheels or upholstery before looking up official manufacturer component numbers. The chair pulls to one side, a footplate wobbles, the brake no longer holds, or a castor starts to shimmy at walking pace. Turning that symptom into the correct replacement is much easier if you think of the chair as a set of areas, each with its own family of wheelchair parts.

This guide walks around a typical manual chair, area by area, and explains which parts live there, what tends to wear, and what to note before ordering a replacement. Powered chairs share many of the same components, with extra electrical parts covered briefly near the end.

What Details Should You Check Before Ordering Replacement Parts?

Check the exact make, model and serial number on the chair identification plate to ensure correct replacement part fitment. Look for a label or plate on the frame, often under the seat, on a cross-brace or near the rear axle. Write down everything on it, and take clear photographs of the part you want to replace, including any numbers stamped on it. A tape measure and a note of sizes will answer most of the questions a supplier asks.

If the chair was supplied through an NHS wheelchair service, check with them before buying parts yourself. Repairs and maintenance for loaned chairs are often arranged through the service, and fitting your own parts may not be appropriate. The NHS guide to walking aids, wheelchairs and mobility scooters explains how wheelchair services work.

UK Wheelchair Spare Parts Suppliers

Finding reputable UK stockists is straightforward once you know where to source components and what details distributors require. Independent mobility stores, dedicated brand service centres, and online component specialists hold inventories of everyday consumables and hardware across major makes. When contacting a supplier or ordering online, provide the chair’s exact make, model name, and the frame serial number stamped on the identification plate. Giving the precise dimensions of the worn component, such as tube diameters or castor stem measurements, ensures the specialist dispatches the exact matching replacement.

Which Structural Frame Components Experience the Most Wear?

Cross-braces, side frames, backrest canes and folding hinge joints absorb regular movement and require routine inspection for wear. Frames themselves rarely need replacing, but the small parts that hold them together do.

• Bolts, nuts and spacers at the cross-brace pivots and the backrest hinges can work loose or wear, causing rattles and play.
• Backrest locking pins or levers that let the back fold down for transport may bend or lose their spring.
• Push handle grips wear through, split or spin on the tube.
• End caps and plugs on open tube ends drop out and are easily lost.

Any crack, bend or corrosion in the frame tubes themselves is a safety matter. Stop using the chair and ask a supplier or the wheelchair service to inspect it rather than trying to repair it.

Rear Wheels, Tyres and Push Rims

The rear wheels carry most of the user’s weight and take most of the wear. The main parts in this area are the tyres and inner tubes, the push rims on self-propelled chairs, the axles and quick-release pins, and the wheel bearings.

Tyres come as pneumatic, which need inflating, or solid and puncture-resistant. When replacing, note the size marked on the tyre wall and the type of valve if it has one. Push rims can become worn, pitted or loose on their mounts. Axles and quick-release pins should snap in firmly; if a wheel wobbles or the button sticks, the pin or the axle sleeve may need attention. For a fuller look at wheel options, see our guide to wheelchair wheels.

Front Castors and Forks

Castors are the small front wheels that swivel as the chair turns. They take a battering from kerbs, thresholds and gravel. Worn castor tyres, dry or damaged bearings and loose fork stems cause the familiar shimmy or flutter at speed, and make steering heavier.

When replacing castors, note the diameter and width of the wheel, the axle size, and whether you need just the wheel, the wheel and fork together, or the stem housing as well. Castors are often sold in pairs, and replacing both at once keeps the chair tracking straight.

Brakes and Safety Parts

Parking brakes on most manual chairs are levers that push a block or bar against the tyre. They stop holding well when the tyre pressure drops, when the block wears, or when the bracket slips along the frame. Before buying a new brake, check the tyre pressure and the bracket position, since that often solves the problem.

Replacement brake assemblies must match the frame tube size and the tyre size. Attendant brakes, operated from the push handles, have cables that can stretch or fray. Anti-tip bars, lap belts and their fixings also belong in this area. Our guide to anti-tip bars for a wheelchair explains how they fit.

Seat, Back and Upholstery

Sling seats and backs stretch over time, and a sagging seat changes posture and comfort. Replacement upholstery needs to match the seat width and depth and the way it fixes to the frame, whether with screws, rivets or hook-and-loop. Some people fit a solid seat base or a tension-adjustable back instead.

Cushions and back supports are separate from upholstery. If you want extra support rather than just a replacement, our guide to a wheelchair back cushion covers the options. Anyone with pressure concerns should take seating advice before changing cushions.

Armrests, Footrests and Leg Rests

Armrests may be fixed, flip-up or removable, and their pads split or crack over time. Replacement pads are often sold separately from the frame part, so measure the length and the spacing of the fixing holes.

Footrests are one of the most frequently replaced areas of any chair. The hanger, the footplate, the release catch, heel loops and calf straps all wear or break, often after catching on door frames. Our page on wheelchair footrest parts goes through each piece. Elevating leg rests have extra mechanisms and pads to check.

Extra Parts on Powered Chairs

Electric chairs add a battery, charger, motors, controller and wiring to everything above. Batteries are the most commonly replaced electrical part. Motors, controllers and wiring are best left to a qualified engineer. If a chair has a power add-on fitted to a manual frame, the add-on will have its own parts and support arrangements.

A Small Spares Kit Worth Keeping

Some wheelchair spares are worth having in the cupboard before anything breaks. A spare inner tube or two for pneumatic tyres, a pump with the right valve fitting, a couple of spare end caps, a replacement heel loop and a set of hex keys in the sizes your chair uses will cover most minor problems. If you rely on the chair every day, a spare pair of castor wheels can save days without the chair. For powered users, knowing how to identify and order wheelchair batteries before the old ones fade avoids a sudden loss of range. Keep the kit together with a note of the chair’s make, model and tyre sizes.

Fitting Parts Yourself or Getting Help

Simple swaps such as push handle grips, end caps, castor wheels, armrest pads and footplates are within reach of many people with basic tools. Anything affecting the frame, the brakes, the rear axles or electrical systems deserves more caution. If in doubt, a local mobility shop or engineer can fit parts and check the chair at the same time.

How Wheelchair Brakes Operate and How to Maintain Them

Wheelchair brakes work by pressing a solid metal or composite bar directly against the rear tyre tread to lock the wheel in place when parked. Most manual wheelchairs feature push-to-lock or pull-to-lock parking brakes mounted along the side frame tubing, while transit models often add attendant brakes operated via levers on the rear push handles. To put the brakes on, push or pull the lever firmly until the linkage cams over centre and snaps securely into the locked position.

If you find your wheelchair brakes not working, check tyre pressure first, as soft pneumatic tyres reduce the clamping force of the brake shoe. You can adjust the brake mechanism by loosening the mounting clamp bolts and sliding the assembly closer to the tyre before retightening. When hoisting a person in or out of a wheelchair with a ceiling track or mobile hoist, safe hoisting practice requires leaving the wheelchair brakes off so the chair can self-centre naturally beneath the user. If a brake casting is cracked or a lever mechanism remains loose, contact your local wheelchair service or mobility engineer for replacement parts.

Selecting and Replacing Wheelchair Armrests and Accessories

Wheelchair armrests come in several configurations to match different daily tasks, including fixed side frames, flip-up arms for side transfers, fully removable desk-length armrests, and full-length padded styles. Desk-length armrests feature a contoured front drop that allows the wheelchair to roll closely under dining tables and desks. To remove a detachable armrest, press the spring-loaded release pin or lever near the receiver socket at the bottom of the side frame and lift the assembly straight upward.

Checking wheelchair armrest height is essential for comfortable shoulder posture, and many modern chairs allow height adjustment via a series of push-button holes or clamp screws. Over time, vinyl or polyurethane armrest pads can split or crack; replacing them requires measuring the pad length and the centre-to-centre distance between the underside screw holes. You can also add specialised side accessories such as an armrest bag or side pouch to keep personal items within reach without obstructing wheel push rims.

Ordering Wheelchair Spares with Confidence

When comparing replacement wheelchair parts, look for listings that name compatible chair models and give clear sizes. Compare the photographs with your own part from several angles. Check the returns terms in case the part does not fit, and read the delivery details on the listing, including whether any delivery offer applies. Keep the old part until the new one is fitted and working, so you can compare them side by side.

Thinking about the chair area by area turns a confusing catalogue into a short list. Identify the chair, find the area where the symptom lives, measure the part, and the right replacement usually becomes obvious.

To keep any chair running well, work through our wheelchair maintenance checklist.

Frequently Asked Questions

Where Can You Buy Replacement Wheelchair Components in the UK?

You can purchase replacement parts from specialist mobility shops, direct manufacturer parts departments, and accredited online healthcare retailers across the UK. Local mobility engineering workshops also supply and install genuine components for both manual and electric models.

How Do You Find the Serial Number on a Wheelchair?

The serial number is typically printed on a barcode label or stamped into a metal identification plate fixed to the frame tubing. Look underneath the canvas seat, along the lower cross-brace mechanism, or near the rear wheel mounting bracket.

Can You Fit Universal Replacement Components on a Wheelchair?

Many hardware items such as push-handle grips, armrest pads, inner tubes, and tyre sets follow standard industry dimensions that fit multiple wheelchair brands. Always verify the fixing hole spacing, tube diameter, and axle pin width before ordering generic replacements.

Should Wheelchair Brakes Be on or Off When Using a Hoist?

Wheelchair brakes should usually be left off when hoisting a person into or out of a chair so the wheelchair can align itself naturally beneath the sling. Always follow the specific transfer plan supplied by your occupational therapist or moving and handling advisor.

How Do You Fix Wheelchair Brakes That Slip on the Tyre?

To fix slipping brakes, check tyre inflation first, then loosen the frame mounting clamp and slide the brake bracket slightly closer to the wheel before tightening the bolt firmly. If the brake block is worn down or the lever linkage is bent, install a replacement brake assembly.