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The CQ Premium semi-loaded disc brake caliper with bracket is a high-quality replacement for select Buick Lucerne and Cadillac DTS models. Designed for reliable performance, this caliper features an aluminum body, floating design, and a single steel piston. Each unit comes with EPDM rubber seals, dust boots, and all necessary mounting hardware for a smooth installation. Every caliper is pressure- and fit-tested for immediate, out-of-the-box functionality.
Meets or exceeds OE specifications for performance and durability
Brackets included for complete system restoration
Aluminum caliper body with OE-style zinc dichromate coating for rust protection
New rubber dust boots and EPDM seals resist heat and cracking
Includes bleeder screws, banjo bolts, crush washers, and stainless steel pad abutment hardware
Semi-loaded design with one steel piston
Abutment Clips Included: Yes
Anti-Rattle Spring Included: No
Caliper Color: Silver
Caliper Slides Included: Yes
Caliper Type: Floating
Casting Material: Aluminum
Disc Brake Caliper Casting Material: Aluminum
E-Waste: No
Finish: Coated
Grade Type: Standard Replacement
Grease Included: Yes
Inlet Thread Diameter: 10.0 mm
Mounting Bracket Included: Yes
Mounting Hardware Included: Yes
Mounting Hole Diameter: 12.0 mm
Pads Included: No
Piston 1 Diameter: 41.14 mm
Piston Material: Steel
Piston Quantity: 1
Buick:
Lucerne CX, CXL, CXL Special Edition, CXS, Super (2006–2011, select trims)
Cadillac:
DTS Base, Luxury, Platinum, Premium, Livery (2006–2011, select trims)
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
