TRQ Rear Brake Rotors Set Solid Compatible with 2006-2011 Buick

In this review of the TRQ Rear Brake Rotors Set readers get a clear verdict on whether these rotors are a sensible replacement for 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS models. The bottom line: this is a straightforward, direct-fit OE replacement kit that delivers solid braking performance and easy installation for owners who need a like-for-like rear rotor swap. The review focuses on fit, materials, and real owner feedback so you can decide if these cast iron rotors meet your expectations for value and everyday driving.

Key Features

• Direct Fit: The rotors are designed as a direct OE replacement, which reduces installation time and the need for modifications.
• Complete Rear Set: The kit includes one rear driver side and one rear passenger side rotor so both sides match for balanced braking.
• Vehicle Specific Fitment: Fitment covers 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS rear axles, helping buyers avoid compatibility guesswork.
• Durable Material: Made from cast iron, these rotors deliver conventional rotor strength and predictable wear for routine driving.
• Measured Dimensions: Concrete specs such as 292 mm outside diameter and 12 mm nominal thickness let mechanics confirm fit before purchase.
• Aftermarket Reference: Listed with reference number 580405 to aid parts lookup and cross-referencing with other suppliers.

Who It's For

These rotors are best for owners of 2006-2011 Buick Lucerne or 2006-2011 Cadillac DTS with standard rear brake setups and 5 lug wheels who want a like-for-like OE replacement. DIY mechanics and independent shops will appreciate the direct-fit design and clear dimensions that speed up installation and reduce the chance of ordering the wrong part.

Drivers who require heavy duty brakes, special coatings for long-term rust resistance, or performance-slotted/drilled rotors should look elsewhere. If corrosion resistance in coastal or salted-road environments is a top priority, a coated or stainless option would be a better choice.

Pros & Cons

Pros

• Good factory-style fit and function that restores original braking feel.
• Easy to install as a matched rear rotor pair, saving shop time for routine replacements.
• Cast iron construction gives predictable wear and consistent braking performance.
• Clear, listed dimensions and vehicle compatibility reduce ordering errors.

Cons

• Coating quality is mixed and several owners report the rotors can rust quickly, so corrosion protection may be limited.
• Not intended for heavy duty or performance brake upgrades where slotted or drilled rotors would be preferred.

Specifications

Kit Contents	One rear driver and one rear passenger rotor
Material	Cast Iron
Outside Diameter	292 mm (11.50 in)
Nominal Thickness	12 mm (0.47 in)
Discard Thickness	11 mm (0.43 in)
Mounting Bolt Hole Circle Diameter	115 mm (4.53 in)
Stud/Lug Holes	5

Our Verdict

The TRQ rear rotor set is a sensible, value-focused OE replacement for Lucerne and DTS owners who want straightforward performance and an easy swap. It offers solid braking feel and correct fitment, but buyers in corrosive environments or those wanting upgraded braking should consider coated or performance alternatives.

Frequently Asked Questions

Will these rotors fit my 2008 Buick Lucerne?
Yes, they are compatible with 2006-2011 Buick Lucerne rear driver and passenger sides with 5 lug wheels.

Are these rotors coated to resist rust?
These rotors have mixed feedback on coating and some users report rusting quickly, so they offer limited corrosion protection.

Do the rotors come as a complete rear pair?
Yes, the kit includes one rear driver side rotor and one rear passenger side rotor for matched replacement.