Clek Replacement Parts Guide: Foam, Covers, and Bars

Quick answer

Replace Clek parts when the original is missing, damaged, or worn past safe function: seat foam that has crumbled or lost shape, harness covers that are cut or no longer stay in place, and anti-rebound bars with bent pins or a cracked sleeve. Match the part to your exact model and model year before ordering, because Foonf and Fllo bars are not interchangeable. If the seat shell, harness, or labels are damaged, replace the seat rather than the part.

Start with the part that actually failed

Clek seats are built to be serviced, but not every worn-looking piece needs replacing. Foam, harness covers, and anti-rebound bars are the three replacement items most owners ask about, and each fails in a different way. Foam compresses and crumbles under the child's weight and at the harness slots. Harness covers fray, stiffen, or stop gripping the straps. Anti-rebound bars take impact at the vehicle floor and can bend a locking pin or split the sleeve.

Diagnose before you buy. Pull the seat out, remove the cover, and inspect the foam at the slot edges and the front of the seat pan. Check the harness covers for cuts, stretched elastic, or a loose fit that lets them slide. On the anti-rebound bar, look for bent or missing locking pins, a cracked sleeve, and any play where the bar meets the seat. If the shell, harness webbing, buckle, or labels are damaged, stop: those are seat-replacement issues, not spare-part issues.

Model and year fit: the rule that prevents returns

Clek replacement parts are model-specific, and the anti-rebound bars are the clearest example. The Foonf bar fits 2014 and newer Foonf models and arrives with the sleeve and locking pins. The Fllo bar fits all Fllo model years and also includes the sleeve and locking pins. They are separate products because they are not the same bar. Ordering by color or by seat name alone is not enough; confirm the model and, for Foonf, the model year.

The Foonf/Fllo Seat Foam Replacement is listed as fitting all Foonf and Fllo models, which makes it the simpler cross-shop of the three. Harness covers are listed for Foonf and Fllo as well, and they are the one item where you also choose a finish. If your seat is older than the supported range, or you cannot confirm the model year, contact Clek before ordering rather than guessing.

Color and material choices on harness covers

Harness covers are the only part in this group with a real style decision. Clek offers them in Ten Year Blue, Cloud/Thunder, Pitch Black, Mammoth, Railroad, and Marshmallow/Snow. Mammoth and Railroad are flame-retardant-free options, which matters if you are trying to reduce flame retardants in the seat area. Not every color is flame-retardant-free, so if that is your priority, choose one of those two finishes rather than assuming the whole line is treated the same way.

Color choice does not affect fit or function. Pick based on whether you want to match the original seat fabric or switch the look, and buy a full set rather than one cover so both straps wear evenly. If you are replacing covers because the foam underneath is also failing, order both at once; the seat has to come apart either way.

Cost trade-offs and when to stop repairing

These are low-cost service parts, so the math is usually simple: a foam cushion, a pair of harness covers, or a replacement bar costs far less than a new seat. The trade-off is time and disassembly, plus the risk of ordering the wrong variant. Buying the correct part once is cheaper than buying a bar that does not fit your model year and shipping it back.

Set a repair limit. If you are replacing foam and covers on a seat that is near the end of its usable life, or if this is the second or third repair in a short period, put the money toward a new seat instead. Replacement parts restore function; they do not extend a seat past its expiration date or fix crash damage.

Decision rules for buying Clek spare parts

• Foam is crumbling or flat at the harness slots: Order the Foonf/Fllo Seat Foam Replacement, which is listed for all Foonf and Fllo models. Replace foam before covers; new covers over collapsed foam will not sit right.
• Harness covers are cut, stretched, or sliding: Order a set of Foonf/Fllo Harness Covers and choose a flame-retardant-free finish such as Mammoth or Railroad if that matters to you. Buy both covers, not one, so the straps wear evenly.
• Anti-rebound bar has bent pins, a cracked sleeve, or missing hardware: Order the Foonf bar for 2014 and newer Foonf, or the Fllo bar for any Fllo model year; both include the sleeve and locking pins. Never mix the two bars between models.
• Shell, harness webbing, buckle, or labels are damaged: Do not repair with spare parts. Replace the seat instead.

Parts covered in this guide

• Foonf/Fllo Harness Covers: Clek Foonf/Fllo Harness Covers are replacement parts for Clek car seats, available in Ten Year Blue, Cloud/Thunder, Pitch Black, Mammoth (flame retardant free), Railroad (flame retardant free), and Marshmallow/Snow. This is the only part here with a material choice, so pick Mammoth or Railroad if flame-retardant-free construction is your priority.
• Foonf/Fllo Seat Foam Replacement: Replacement Foam Seat Cushion for all Foonf and Fllo models. One foam part covers both models, so you do not have to match a model year the way you do with the anti-rebound bars.
• Foonf Anti-Rebound Bar: Replacement anti-rebound bar for 2014 and newer model Foonf, comes complete with sleeve and locking pins. Confirm your Foonf is 2014 or newer before ordering; the sleeve and pins are included, so you do not need to source them separately.
• Fllo Anti-Rebound Bar: Replacement anti-rebound bar for all Fllo model years comes complete with sleeve and locking pins. Fllo owners do not need a model-year check, but this bar is not a substitute for the Foonf bar.

Who should buy replacement parts

Best for

• Owners of a Foonf or Fllo with worn foam, damaged harness covers, or a bent anti-rebound bar
• Shoppers who want flame-retardant-free harness covers in Mammoth or Railroad
• Anyone who can confirm their seat model and, for Foonf, the model year before ordering

Not for

• Seats with a damaged shell, harness, buckle, or missing labels
• Seats that are past their expiration date
• Owners who cannot identify their model or model year and will not check with Clek first