Brake Caliper Rebuild Kits
Circle Track Brake Caliper Rebuild Kits at JJ Motorsports
Maintain peak braking performance in your circle track racer with comprehensive caliper rebuild kits from JJ Motorsports. These kits include essential seals, O-rings, and components to restore calipers, preventing leaks and ensuring smooth operation under high-heat racing conditions in IMCA, USMTS, and dirt oval events for late models, modifieds, and street stocks.
Shop trusted brands like Wilwood for high-quality O-ring and rebuild kits, Howe for piston O-rings, and PFC Brakes for performance rebuild options. Explore related categories such as Circle Track Brake Systems and Components for complete braking solutions or Circle Track Disc Brake Calipers for compatible calipers.
Top Circle Track Brake Caliper Rebuild Kits
Wilwood 1-1/8" Master Cylinder Rebuild Kit 260-3884 – Includes piston, seals, snap ring, dust boot assembly; compatible with Wilwood master cylinders featuring 1.125-inch bore for optimal braking efficiency.
Wilwood 2.38" GM Round O-Ring Kit 4 Pack 130-4956 – 2.380-inch inside diameter, 0.139-inch thick; made from 210A material, compatible with 2.38-inch Wilwood pistons and DOT 3, 4, 5 fluids.
Wilwood Square O-Ring Kit 1.88/1.75 4-Pack 130-2427 – 2.000-inch inside diameter, 0.099-inch thick; made from 210M material, for Wilwood calipers with 1.88 and 1.75-inch pistons, compatible with DOT fluids.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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- Quantity
- Price
- Subtotal
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Howe Piston O-Rings For 337 3376
HOWE
$8.99Brake caliper seal degradation compromises hydraulic pressure consistency and introduces contamination that accelerates component wear. These OEM-specification O-rings restore proper piston sealing and are essential maintenance for any Howe single-piston...HOW3376- SKU:
- HOW3376
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 3376
$8.99 -
Wilwood 1-1/8" Master Cylinder Rebuild Kit 260-3884
WILWOOD
$32.44A master cylinder rebuild is essential maintenance for any serious racer or performance-minded mechanic—worn seals and internal components compromise braking response and safety. This Wilwood rebuild kit gives you OEM-quality components at a fraction of...WIL260-3884- SKU:
- WIL260-3884
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 260-3884
$32.44 -
Wilwood 2.38" GM Round O-Ring Kit 4 Pack 130-4956
WILWOOD
$18.32Brake caliper performance depends on seal integrity—worn or degraded O-rings compromise piston travel and invite fluid leakage that degrades braking response. The Wilwood 2.38" Round O-Ring Kit supplies the elastomer seals you need to restore your...WIL130-4956- SKU:
- WIL130-4956
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 130-4956
$18.32 -
Wilwood 2.75-inch GM Round O-Ring Kit 4-pack 130-4955
WILWOOD
$18.32Brake caliper seals wear down with heat cycles and fluid exposure—when they do, your braking system loses pressure and performance. This Wilwood O-Ring Kit gives you everything needed to restore your GM 2.75-inch calipers to factory specifications...WIL130-4955- SKU:
- WIL130-4955
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 130-4955
$18.32Qty in Cart: 0Quantity:Price:$18.32Subtotal: -
Wilwood 1.62in Square O-Ring Kit 4 Pack 130-4346
WILWOOD
$11.35Brake caliper seals degrade over time due to heat cycling and fluid exposure, leading to fluid leaks and reduced braking performance. The Wilwood 1.62in Square O-Ring Kit provides OEM-quality replacement seals engineered specifically for Wilwood 1...WIL130-4346- SKU:
- WIL130-4346
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-4346
$11.35 -
Wilwood Square O-Ring Kit 1.38" 4-Pack 130-2658
WILWOOD
$11.35Brake system reliability depends on maintaining proper piston seals, and worn or degraded O-rings compromise both stopping power and safety. This Wilwood Square O-Ring Kit restores the critical seal on 1.38-inch pistons, preventing fluid leakage and...WIL130-2658- SKU:
- WIL130-2658
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-2658
$11.35 -
Wilwood 1.75" Square O-Ring Kit 4-Pack 130-2655
WILWOOD
$11.35Wilwood brake calipers demand precision sealing to maintain consistent hydraulic pressure and prevent fluid loss during hard braking. Over time, O-rings degrade from heat cycling and fluid exposure, compromising your braking response when you need it...WIL130-2655- SKU:
- WIL130-2655
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 130-2655
$11.35 -
Wilwood Square O-Ring Kit 1.12 130-2579
WILWOOD
$13.90Brake caliper seals wear with use, and worn O-rings lead to fluid leakage, inconsistent pedal feel, and reduced braking reliability. The Wilwood Square O-Ring Kit 130-2579 provides OEM-quality replacement seals engineered specifically for Wilwood 1...WIL130-2579- SKU:
- WIL130-2579
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-2579
$13.90 -
Wilwood Square O-Ring Kit 1.25" Piston 4-Pack 130-2479
WILWOOD
$13.90Wilwood brake calipers demand precision sealing to maintain consistent stopping power and prevent fluid weeping that compromises safety. This square O-ring kit provides factory-spec replacement seals for 1.25-inch pistons, keeping your calipers...WIL130-2479- SKU:
- WIL130-2479
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-2479
$13.90 -
Wilwood Square O-Ring Kit 1.88/1.75 4-Pack 130-2427
WILWOOD
$13.90Wilwood brake calipers demand precision-engineered sealing components to maintain consistent pressure and prevent fluid loss under race conditions. These OEM-specification square O-rings are the critical maintenance items that keep your braking system...WIL130-2427- SKU:
- WIL130-2427
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-2427
$13.90 -
Wilwood 2.00" Round O-Ring Kit 4-Pack 130-0777
WILWOOD
$18.32Brake caliper seals degrade over time, compromising system pressure and stopping power. This Wilwood O-Ring Kit gives you the exact replacements needed to restore your 2.00-inch caliper pistons to factory specifications without a full caliper replacement...WIL130-0777- SKU:
- WIL130-0777
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 130-0777
$18.32 -
Seal Kit Z34 Rear 29MM / 36.5MM 8pcs 900.900.100.05
PFC BRAKES
$51.99Brake system reliability is non-negotiable, especially when pushing your Z34 to its limits on track or road. A worn seal kit compromises hydraulic pressure, reduces braking responsiveness, and risks catastrophic caliper failure. This OEM-specification...PFR900.900.100.05- SKU:
- PFR900.900.100.05
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 900.900.100.05
$51.99 -
Seal Kit Z34 Front 41/44 MM 8 Pcs 900.900.100.03
PFC BRAKES
$51.99Maintaining responsive, consistent braking performance requires fresh seals in your front calipers—worn or degraded seals lead to fluid leakage, spongy pedal feel, and compromised stopping power. This complete 8-piece seal kit for Z34 front calipers...PFR900.900.100.03- SKU:
- PFR900.900.100.03
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- 900.900.100.03
$51.99 -
Howe O-Ring Kit For 33658 33761
HOWE
$4.99Brake caliper performance depends on proper sealing—worn or degraded O-rings compromise hydraulic pressure, responsiveness, and safety. This Howe O-Ring Kit restores your D52 single-piston calipers to factory specifications, ensuring consistent braking...HOW33761- SKU:
- HOW33761
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 33761
$4.99
