Typically, it costs around $300 to $700 per rear control arm, including parts and labor; however, the exact price varies by vehicle type, regional labor rates, and whether you replace a single arm or both sides.
What goes into the price
Costs are driven by several factors, including the arm type, whether a ball joint is integrated, and shop labor rates. The following list outlines the main cost components.
- Part price: aftermarket versus OEM; whether the ball joint is already integrated or must be replaced separately; material (steel versus aluminum).
- Labor time: typically 1–2 hours per arm, but it can be longer on complex vehicles or if access is tight.
- Wheel alignment: usually required after replacing suspension components to prevent unusual wear and maintain geometry.
- Additional parts or services: new mounting hardware, bushings, sway bar links, or diagnostic/inspection fees.
Understanding these components helps explain why quotes can vary so much from one shop to another and from one vehicle to another.
Typical price ranges by scenario
The following ranges reflect common scenarios for a standard passenger vehicle. Actual quotes will depend on your specific model and location.
- Single rear control arm (basic aftermarket arm with separate ball joint): parts $60–$160; labor $100–$250; alignment $60–$100; total about $220–$510.
- Single rear control arm (OEM/dealer parts or higher-end materials such as aluminum): parts $150–$450; labor $150–$300; alignment $60–$100; total about $360–$850.
- Two rear control arms (both sides): parts $300–$900; labor $300–$600; alignment typically required; total about $600–$1,500.
In practice, most drivers paying for a single rear control arm replacement on a typical sedan or compact SUV will commonly see the $300–$700 range per arm, with higher-end vehicles or imported models pushing beyond that when OEM or specialized components are used.
What can push costs up or down
Several factors can swing the total price, and knowing them helps you plan ahead and avoid sticker shock.
- Vehicle make/model and suspension design complexity (some cars require extra disassembly or special tools).
- Geographic variation in labor rates and shop policies; urban areas tend to be more expensive.
- Part choice: aftermarket parts are typically cheaper than OEM; premium or aluminum arms cost more.
- Whether the job includes replacing a separate ball joint or other wear items; some arms come with the ball joint pre-installed.
- Need for a wheel alignment, which adds to the total if not included in the quoted price.
Always ask for a written estimate that breaks down parts, labor, alignment, and any potential extra costs before authorizing the repair.
How to get an accurate quote
To ensure you receive a precise estimate, come prepared with key details and questions.
- Provide your vehicle’s year, make, model, and trim level, plus whether you know if the arm is an upper or lower control arm.
- Ask for a parts breakdown (OEM vs aftermarket) and whether the quote includes a ball joint if applicable.
- Request separate line items for parts, labor, and alignment, and ask about diagnostic or shop fees.
Conclusion: A transparent, itemized estimate helps you compare quotes fairly and plan for any additional work that might arise.
Summary
Bottom line: Replacing a rear control arm is a common suspension repair with costs that vary widely. For many cars, you can expect roughly a few hundred dollars per arm when using aftermarket parts and standard labor rates, with higher-end parts or two-arm replacements pushing the total higher. Always verify the scope (one arm vs both), confirm if an alignment is included, and obtain a written estimate to avoid surprises.