Caliper Rebuild Kits

Caliper Rebuild Kits

Caliper Rebuild Kits bring a tired caliper back to proper function without hunting down replacement units. We stock seal kits, piston kits and full rebuild sets covering factory sliding calipers on daily driven Japanese hatchbacks through to fixed calipers on cars that see regular track days at Wakefield or The Bend. Owners buy them for weeping seals, sticking pistons and seized slide pins, and where a casting is genuinely finished we will say so rather than sell you a kit that won't help.

Shop by Vehicle

The range covers popular platforms including Subaru WRX and STI, Toyota 86, GR86 and Supra, Nissan Silvia, Skyline and GT-R, Mazda RX-7 and MX-5, Honda Civic Type R and Integra, plus common European fitments from VW, BMW and Audi. Many of these ran more than one caliper design across their production run, so if you are unsure which kit suits yours, send us the caliper casting number or a clear photo and we will match it.

Shop by Product Type

Three broad options sit in this collection. Full rebuild kits include seals, pistons, dust boots and clips. Seal-only kits suit calipers whose pistons are still clean and true. Piston kits cover the cases where corrosion or pitting is the real problem but the rubber is available separately. We also stock the small parts that get overlooked on a rebuild, such as guide pin boots and retaining hardware.

Why Rebuild Instead of Replace

A sticking piston or a weeping seal rarely means the caliper body is scrap. Most OEM castings are well made and simply need fresh rubber and a clean bore. Rebuilding also keeps the original pad and rotor sizing, which matters if the car needs to stay close to standard. The honest limits: deep bore pitting, cracked castings and stripped bleeder threads are not fixable with a kit, and in those cases a replacement or a step up to a performance caliper is the better call.

Fitment & Installation

Match the kit to the exact caliper casting number rather than just model and year. AU-delivered cars sometimes differ from JDM or Euro-market equivalents, and mid-cycle updates changed caliper suppliers on several platforms. Most installers hone or clean the bore, check for pitting, then fit new seals dry or with the supplied lubricant only, never petroleum grease. Fresh brake fluid and a full bleed are needed afterwards, and doing both sides of an axle at once keeps braking even.

Pair with the rest of your build
FAQ

Will a rebuild kit fit a caliper that has been reconditioned before?
Yes, provided the casting has not been changed or machined outside spec. Match by casting number to be certain.

What tools does a caliper rebuild usually need?
A piston removal tool or compressed air, circlip pliers, brake cleaner and a clean bench cover most jobs. Nothing beyond normal workshop gear.

Can I rebuild just one caliper?
You can, but doing both sides of an axle together keeps braking balanced and saves bleeding the system twice.

Do all kits include new pistons?
No. Some are full kits with pistons, others are seals only. Check the individual listing and ask if you are unsure.

Do you ship Australia-wide?
Yes, we ship to all states and territories, including regional addresses.

Not sure which kit matches your caliper? Send us the casting number and we will confirm it.

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Frenkit Performance 40mm Brembo seal kit, M3 F80 / BRZ / Civic Type R front – grey boots, seals, caps and box
Frenkit rear Brembo 40mm caliper seal kit – two pressure seals, two dust boots, o-rings and caps
Frenkit 54mm steel caliper piston, Mazda RX-8 SE3P front
Paragon Anti-Rattle Pad Retainer Kit – AP Racing CP9660 / CP9661 Calipers
Paragon AP Racing Replacement Seal Kit - CP9660 / CP9665 / CP9668 Radi-CAL Pro5000R 6 Piston Brake Caliper
Frenkit front Brembo 36/40mm seal kit, Porsche 911 Boxster Cayman – four seals, four dust boots and caps
Frenkit front Brembo 38/44mm caliper seal kit – four pressure seals, four dust boots and two bleeder caps
Frenkit 40mm rear caliper piston and seal kit, BRZ / Toyota 86 – piston, seals, boots, bleeder and grease
Alcon caliper piston seals (product illustration)
Sale price$309.00
Available to Order
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Frenkit Performance 40/44mm Brembo seal kit, GR Supra and TT RS – box with seals and grey dust boots
Honda Genuine Caliper Seal Kit - Honda Civic Type R (FK8/FL5) / Prelude (BF1) Honda Genuine Caliper Seal Kit - Honda Civic Type R (FK8/FL5) / Prelude (BF1)
Image Coming Soon
Sale price$269.00
Available to Order
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Frenkit Performance Porsche Brembo 36/40mm piston kit – box, four pistons, seals, grey boots and bleed screw Frenkit Performance infographic on silicone dust boots, seal compound and testing (product illustration)
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Frenkit Performance Brembo 6-pot 30/34/38mm seal kit – box, six grey silicone boots, six seals and bleeder caps Frenkit Performance infographic on silicone dust boots, seal compound and testing (product illustration)
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Frenkit Performance Porsche Brembo 28/30mm piston kit – box, four pistons, seals, grey boots and crossover o-rings Frenkit Performance infographic on silicone dust boots, seal compound and testing (product illustration)
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Frenkit Performance rear Brembo 28/32mm seal kit – box, grey silicone boots, four pressure seals and temperature sticker Frenkit Performance infographic on silicone dust boots, seal compound and testing (product illustration)
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Frenkit 40/44mm Brembo caliper seal kit, GR Supra / Z4 – four dust boots, four pressure seals and two bleeder caps
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Frenkit rear 4-piston caliper piston and seal kit, 30/34mm – Porsche 911 pistons, seals, boots and grease
Frenkit front caliper guide pin kit – Nissan Pulsar N15 guide pins, bolts and slide pin boots
Frenkit 40mm front caliper piston and seal kit – Subaru BRZ / Toyota 86 pistons, seals, boots and bleed screws
Frenkit 40mm front caliper seal kit – Subaru BRZ / Toyota 86 seals, dust boots, slide boots and caps
Frenkit M10 x 1.0mm brake caliper bleed screw – side view
Frenkit square-section caliper crossover o-ring seal, 6mm ID x 10.2mm OD x 2.2mm – dimension drawing
Frenkit Performance 30mm high temperature dust boots – box and two grey silicone boots Frenkit Performance 46mm high temperature dust boots – box and two grey silicone boots
Frenkit high-temperature caliper pressure seal, 28mm – square-section ring Frenkit high-temperature caliper pressure seal, 30mm – square-section ring
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Frenkit 40mm aluminium caliper piston, Porsche 944 – photo coming soon placeholder
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Frenkit 36mm aluminium caliper piston, Porsche 944 / 928 / 959 front (product illustration)
Frenkit front Brembo pins and clips kit, Megane RS Mk III – two anti-rattle clips and four pad pins