Acura RL (2006-2012) Disc Brake Caliper Guide & Common Problems
Is your Acura RL pulling to one side or making grinding noises? Your brake calipers might be the problem.
- Seized rear calipers and sticky slide pins are a common problem for the 2006-2012 Acura RL.
- The front calipers are a 4-piston design; always confirm you are ordering the correct part for the front or rear axle.
- It is strongly recommended to replace calipers in pairs (both front or both rear) to ensure balanced braking.
- New aftermarket calipers offer a significant cost saving over OEM parts without a core charge.
Understanding Brake Caliper Failure in Your Acura RL
The brake calipers on your 2006-2012 Acura RL work hard, and over time, they can wear out or fail. The most common issues are seized pistons or seized slide pins. Pistons can get stuck due to corrosion from moisture in the brake fluid, while slide pins can seize if they aren't properly lubricated during brake service. When a caliper seizes, it can cause the brake pads to constantly drag on the rotor, leading to overheating, premature wear, and unsafe driving conditions.
Known Issues & TSBs
While no specific recalls for brake calipers were found for the 2006-2012 Acura RL, a Technical Service Bulletin (TSB) was issued for early models regarding front brake noise. This was often related to pad material and hardware. Additionally, owners on forums frequently discuss issues with seized rear calipers and sticking slide pins, which can cause uneven pad wear and a grinding noise. It's a common problem that requires attention.
Choosing the Right Aftermarket Caliper
When replacing a caliper on your RL, you have options outside of the expensive dealership parts. New aftermarket calipers can offer a great balance of quality and value. They are manufactured to meet or exceed original equipment (OE) specifications and come with new seals, boots, and pistons. Unlike remanufactured parts, which reuse the old caliper body (core), new parts are 100% new, eliminating concerns about metal fatigue or hidden damage.
- PowerStop: Often seen as a performance-oriented brand, PowerStop calipers are a good choice for drivers looking for an upgrade. They frequently come with a powder-coated finish to resist corrosion and include new hardware.
- Centric: A well-regarded brand in the aftermarket, Centric offers a wide range of brake parts. Their new calipers are a solid, reliable replacement for the original factory parts and are a popular choice for daily drivers.
- Cardone & BBB Industries: These brands are major players in the aftermarket, offering both new and remanufactured options. Their new calipers are built to OE standards and provide a cost-effective solution for restoring your brake system's performance.
Pro Tip: It is highly recommended to replace brake calipers in pairs (both front or both rear). This ensures even braking performance and wear, preventing the car from pulling to one side when you brake.
Estimated Replacement Costs
Costs can vary based on your location and whether you do the work yourself or hire a professional. The prices below are estimates.
| Part Type | Estimated Cost (Per Caliper) |
|---|---|
| New Aftermarket Caliper | $72 - $246 |
| New OEM Caliper | $780 - $1150+ |
| Shop Labor | $200 - $300 (per axle) |
Frequently Asked Questions
Do I need to buy a caliper with the mounting bracket?
Usually, no. The original mounting bracket can be reused unless it is damaged or heavily corroded. Most aftermarket calipers are sold without the bracket to save cost, but options with a new bracket included are available.
Should I replace my brake hoses at the same time?
It's a good idea, especially on a high-mileage vehicle. Over time, the inside of a rubber brake hose can break down and act like a one-way valve, trapping pressure and causing the caliper to stick. Replacing the hoses is a low-cost preventative measure.
What is a "core charge?"
A core charge is a deposit paid when you buy a remanufactured part. You get the deposit back when you return your old, used part (the "core"). Since this guide focuses on NEW aftermarket parts, you typically won't have to worry about a core charge.
Can I just rebuild my original RL caliper?
Yes, rebuilding is an option for those with mechanical skill and the right tools, like compressed air. Rebuild kits with new seals and boots are available. However, if the caliper piston or bore is corroded or damaged, rebuilding may not be successful, and a new caliper is the better choice.
Technical Specifications
OEM Part Numbers: 45018-SJA-A02 45019-SJA-A02 43018-SJA-010 43019-SJA-010 45018sjaa01 45019sjaa01
The 2006-2012 Acura RL uses 4-piston fixed calipers on the front axle and single-piston floating calipers on the rear axle. The front calipers are known to be made by Advics.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Acura RL: