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Bigg Red Brake Caliper Seal Repair Kit Review: Essential BOSCH 38mm Seal Replacement?

Bigg Red - Brake Caliper Seal Repair Kit with Female Straight Inlet - Rear Left or Right - Fits Standard BOSCH 38mm Piston Calipers - Compatible with Select Models - 3857S
4.7
[Precise BOSCH Fit]  Fits standard BOSCH 38mm piston calipers (square-ended pads) from Oct 2004.
[EU Manufactured Quality]  Made in Spain to high European manufacturing standards.
[Brand New Sealed]  Factory-new, unused and unopened in original retail packaging.
[Trusted Supplier Experience]  Bigg Red established 2003, brake specialists with 100,000+ components in stock.
[Warranty & Returns]  12-month manufacturer warranty plus 60-day returns; items must be unused and undamaged.
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Automotive repair part that restores caliper sealing for BOSCH braking systems, ideal for targeted brake repairs, Bigg Red Brake Caliper Seal Repair Kit. That reassurance helps workshops and DIY mechanics complete jobs without second-guessing. Is this the correct seal kit for BOSCH 38mm piston calipers from October 2004 with square-ended brake pads?

⚡ At a Glance
  • Fit and Compatibility: Female straight inlet fits standard BOSCH 38mm piston calipers, rear left or right, models from Oct 2004 with square-ended brake pads
  • Best for: Workshop technicians and experienced DIY mechanics performing caliper rebuilds
  • Not ideal for: Owners unsure of exact caliper specifications without verifying piston size and pad end shape

Brake caliper seal repair kit with female straight inlet for standard BOSCH 38mm piston calipers. Manufactured in Spain and supplied new in original retail packaging.


Secure seal restoration - with Female Straight Inlet for BOSCH 38mm pistons

Female straight inlet matches the inlet configuration on standard BOSCH 38mm piston calipers, aligning the replacement seals to the piston bore and inlet.

Restores sealing at the piston and inlet to reduce fluid loss and maintain hydraulic integrity during braking.

Side-flexible replacement - with Rear Left or Right compatibility

Kit specification lists suitability for rear left or right applications, avoiding the need to purchase side-specific seal sets.

Simplifies parts ordering and stock management, allowing quicker turnarounds for workshop and home repairs.

After-sales assurance - with 12 month warranty and 60 day returns

Manufacturer warranty covers parts for 12 months and a 60 day returns window applies to calipers and components when returned unused and undamaged; support available from Bigg Red.

Provides peace of mind during the initial ownership period and direct access to specialist advice if suitability questions arise.

✨ The 4 Key Reasons for Bigg Red Brake Caliper Seal Repair Kit

Brand-new packaging - Arrives ready for fitting with unused components straight away

Made in Spain - EU manufacture ensures traceable origin and clear production standards

12-month warranty & 60-day returns - Gives confidence when replacing brake parts, quick recourse

Bigg Red support & stock - Decades of expertise and 100,000+ components ready for advice

📋 Technical Details at a Glance
  • Category: Automotive Parts and Accessories
  • Compatibility: Standard BOSCH 38mm piston calipers
  • Inlet Type: Female straight inlet
  • Piston Size: 38mm
  • Position: Rear left or right
❓ Frequently Asked Questions

Q: Is this kit compatible with my BOSCH caliper?

A: Compatible with standard BOSCH 38mm piston calipers and specified for models from October 2004 with square-ended brake pads.

Q: Can the kit be used on left or right rear calipers?

A: Yes, the kit is listed for rear left or right applications so either side can be serviced with the same part.

Q: What warranty and return options are included?

A: A 12 month manufacturer warranty applies and a 60 day returns window is available for calipers and components provided items are returned unused and undamaged.

🏆 Our Verdict

Suitable for workshops and experienced DIYers who need a direct-replacement seal set for BOSCH 38mm piston calipers. Female straight inlet design plus EU manufacture and Bigg Red's support are the key selling points. Generous warranty and strong stock backing mean reliable long-term value for ongoing brake repairs.