Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclosure here.
If you drive an Acura RDX, a properly functioning throttle body has a big effect on throttle response, idle stability, and overall drivability. Picking the right throttle body part matters because fitment, airflow characteristics, and sensor compatibility directly affect how the engine responds when you press the pedal. This guide covers the top shortlisted throttle body options for the Acura RDX. We evaluated candidates against real-world criteria such as fitment precision and airflow accuracy to help you narrow the field. Read on to see the top picks and what to consider before you buy.
Looking for other parts? See all Acura RDX parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | A-Premium Electronic Throttle Body with TPS for Acura RDX and Select Honda/Acura Models |  |
| Best Quality Built to a higher standard if you want something more solid | Beck/Arnley 154-0165 Throttle Body |  |
| Best Value The sweet spot between price and what you get | Tektall Electronic Throttle Body Assembly (16400-RN0-A01) |  |
| Best Budget The cheapest option that still gets the job done reliably | Radvik Electronic Throttle Body Assembly (16400RYEA01) Compatible with Acura RDX 2013-2015 |  |
| Highest Rated A top-rated pick with lots of positive feedback | X4XZ S20236 Electronic Throttle Body (replaces 16400RN0A01 / 16400RYEA01) |  |
| Most Popular A crowd favorite that many people choose with confidence | MUZMIOZ Electronic Throttle Body Assembly (Replacement S20236 67-2000) |  |
| Best Seller A high-volume bestseller chosen again and again | SZKAIDAG Electronic Throttle Body 16400RN0A01 (6-Pin) |  |
1. A-Premium Electronic Throttle Body with TPS for Acura RDX and Select Honda/Acura Models
| Material | Aluminum |
|---|---|
| Terminal Quantity | 6 |
| Throttle Position Sensor | Included |
| Throttle Body Type | Electronic |
This A-Premium electronic throttle body replaces the factory unit and provides electronic throttle control with a built-in throttle position sensor. It is used as a direct replacement when the original throttle body fails or shows driveability issues such as rough idle, poor throttle response, or check engine codes. Key features visible in the listing include an aluminum housing, six-pin electrical terminal, and inclusion of the throttle position sensor while the idle air control motor is not included. In practice it restores proper electronic control of the throttle plate and should bolt into the intake where the original throttle body sat, returning smooth idle and consistent response when installed and calibrated. The aluminum construction helps heat resistance and durability, and the six-terminal connector matches factory wiring on compatible models. Limitations are that installation may require relearn or ECU adaptation procedures and professional installation is recommended if you are not comfortable with throttle calibration or diagnostic steps. The part is a direct-fit replacement for listed fitments but does not include an idle air control motor so it is not a complete assembly for vehicles that require that component separately.
Best for: Balanced buyers who want a reliable, factory-style replacement throttle body for an Acura RDX and value a component that restores normal drivability without flashy performance modifications.
Less Ideal for: Drivers seeking performance upgrades, custom throttle mapping, or an all-in-one assembly that includes an idle air control motor should look elsewhere.
- Direct-fit replacement design for compatible Acura RDX years, simplifying swap-in service.
- Built-in throttle position sensor eliminates need to purchase TPS separately.
- Aluminum housing improves durability and thermal resistance compared with some polymer units.
- Six-pin terminal matches factory connector for straightforward electrical hookup.
- Idle air control motor is not included, so some vehicles may need a separate part or adaptation.
- Installation may require ECU relearn or professional calibration to clear codes and restore optimal throttle behavior.
Verdict: A practical, factory-style electronic throttle body replacement that restores proper throttle control on compatible Acura RDX models.
2. Beck/Arnley 154-0165 Throttle Body
| Material | Metal, Plastic |
|---|---|
| Mounting Type | Flange Mount |
| Output Type | electrical signal |
| Upper Temperature Rating | 257 Degrees Fahrenheit |
This Beck/Arnley throttle body is an electronic, flange-mount assembly designed as a direct replacement to restore throttle control and idle behavior. It includes the motorized actuator and any necessary sensors so installation is typically a straight swap for a matching application and then a brief system relearn or code clear. The construction combines metal and engineered plastic intended to resist underhood heat and contamination, which helps maintain consistent throttle response over time. For performance-focused buyers, a correctly matched factory-quality throttle body preserves OEM driveability and throttle mapping without introducing unpredictable behavior that can come from aftermarket performance-only units. Limitations are that this part is an application-specific factory-style replacement rather than a performance-upgrade component, so it will not increase airflow or boost power on an Acura RDX seeking higher top-end gains; upgrade-focused builders will need a purpose-built high-flow unit instead.
Best for: Performance-oriented owners who prioritize maintaining precise, factory-like throttle response and reliability when repairing or restoring an Acura RDX.
Less Ideal for: Drivers looking to extract more power through increased airflow or aftermarket engine tuning should consider a dedicated high-flow performance throttle body instead.
- Factory-style design for direct fit and predictable throttle control
- Includes motorized actuator and required sensors for plug-and-play replacement
- Constructed to withstand underhood heat and contaminants for durable operation
- Not designed as a high-flow performance upgrade so it will not increase horsepower or torque
Verdict: A factory-quality direct-replacement throttle body that restores precise, reliable throttle response for Acura RDX owners seeking performance-level drivability maintenance.
3. Tektall Electronic Throttle Body Assembly (16400-RN0-A01)
| Brand | Tektall |
|---|---|
| Model | Tektall 16400-RN0-A01 |
| Exterior | Machined |
| Terminal Quantity | 6 |
This Tektall electronic throttle body is a direct-style replacement that integrates the actuator, idle air control, and throttle position sensor into a single aluminum housing for plug-and-play installation. For an Acura RDX (compatible RDX listings include 2013-2015 V6 3.5L in the product fitment), the unit is intended to be inserted into the original wiring harness and restore electronic throttle control after a failed OEM unit. The machined aluminum body and pre-wired six-pin connector simplify fitment and reduce install time for a DIYer or independent shop. Practical benefits include restoring drivability, eliminating throttle-related limp modes, and matching factory control behavior without needing additional programming in many cases. Limitations are variable: a few user reports note fitment or functional failures out of the box and some vehicles required relearn procedures or professional calibration. Buyers should also verify exact year and engine match before ordering and be prepared to test and relearn the throttle after installation.
Best for: Practical optimizers who want a cost-effective, factory-style replacement for an Acura RDX V6 that restores throttle control without buying a dealer part and who prefer a straightforward DIY or independent-shop install.
Less Ideal for: Buyers seeking guaranteed OEM-backed parts or those unwilling to perform post-installation relearn and testing should consider dealer parts or professional replacement services instead.
- Integrates actuator, idle air control, and throttle position sensor for simplified replacement
- Machined aluminum housing for durability and heat resistance
- Pre-equipped six-pin connector designed to plug into the stock wiring harness
- Engineered to match or improve on factory design for straightforward installation
- Some buyers reported units that failed or did not operate correctly without further troubleshooting
- May require throttle relearn or calibration after installation to restore proper idle and response
Verdict: A budget-friendly, factory-style electronic throttle body that restores throttle control on compatible Acura RDX V6 models with a plug-and-play installation approach.
4. Radvik Electronic Throttle Body Assembly (16400RYEA01) Compatible with Acura RDX 2013-2015
| Compatible part numbers | 16400RN0A01, 16400RYEA01, S20236, TB1292, 672000 |
|---|---|
| Position | Front |
| Manufacturer | Radvik |
| Item Weight | 1.21 pounds |
This Radvik electronic throttle body is a complete, ready-to-install replacement engineered to match factory fit and function for the Acura RDX V6 2013–2015. It replaces the factory unit referenced by part number 16400RYEA01 and includes the throttle housing, motor and sensor assembly so you do not need to transfer parts from the old unit. Typical use is swapping this in when the vehicle shows hesitation, unstable idle, reduced acceleration or the electronic throttle warning light. The unit is cast from reinforced aluminum for corrosion and heat resistance and the listing indicates factory-spec tolerances aimed at straightforward installation. Practical benefits are restored throttle response and a potential end to idle or stalling issues without needing a dealer module. Limitations to consider are reliance on correct part selection for the RDX application and the occasional marketplace concern about used or mis-packaged items seen in some buyer reports, so inspect packaging and connectors on arrival before installation.
Best for: Budget-conscious owners seeking an affordable, full replacement throttle body to restore throttle response on a 2013–2015 Acura RDX without paying dealer markup.
Less Ideal for: Drivers who require dealer-sourced parts, factory refurbishment, or certified remanufactured units for warranty or resale reasons should consider OEM options instead.
- Complete throttle body assembly including motor and sensors for plug-and-play replacement
- Manufactured to match listed factory part numbers for direct fit on the specified RDX years
- Aluminum construction improves heat and corrosion resistance compared with cheaper cast parts
- Sold with a 2-year replacement guarantee from the brand for added peace of mind
- Some customer reports indicate received units with prior-use signs or packaging issues that require inspection on arrival
- Not a vehicle-specific reman from Acura dealership channels which may affect long-term perceived provenance
Verdict: An affordable, complete plug-and-play throttle body replacement built to match factory part numbers for Acura RDX 2013–2015 owners on a budget.
5. X4XZ S20236 Electronic Throttle Body (replaces 16400RN0A01 / 16400RYEA01)
| Model | S20236 Electronic Throttle Body |
|---|---|
| Manufacturer | X4XZ |
| Manufacturer Part Number | S20236 |
| OEM Part Number | 67-2000, TB1292, 16400RN0A01, 16400RYEA01 |
This X4XZ S20236 electronic throttle body is a replacement unit intended for V6 Acura and Honda models including the RDX and is designed to restore throttle control and idle stability. It installs in place of factory throttle bodies that use the listed part numbers and is typically used to cure rough idling, stalling, limp-home modes, or check-engine codes related to throttle position. The unit includes a built-in control microchip for smoother throttle response and is described as constructed from aluminum with upgraded internal components and coatings for durability. In practice you can expect a straightforward swap when the vehicle requires a throttle-body replacement, and the improved control electronics can reduce hesitation and prevent some driveability faults. Limitations include a mixed user history where some buyers reported fitment or reliability problems, so careful verification of fitment and post-installation testing is advisable. No printed manual is included so DIY installers should have service information or access to a scan tool for relearn procedures.
Best for: Reliability-focused owners who prioritize restoring factory drivability on an Acura RDX V6 and prefer a direct replacement to address throttle-related symptoms.
Less Ideal for: Buyers seeking a performance upgrade or a guaranteed lifetime part should consider higher-end branded or dealer units instead.
- Built-in precision micro control chip designed to smooth throttle response and reduce stalling or rough idle
- Made from aluminum with upgraded components and coatings for improved durability
- Direct-replacement for multiple factory part numbers used on Acura and Honda V6 models
- Seller offers 1 year product service and customer support
- Some customer reports indicate intermittent fitment or early failure issues
- No printed installation manual included, requiring prior knowledge or service info
Verdict: A budget-friendly direct-replacement throttle body aimed at restoring smooth throttle response and idle control on compatible Acura and Honda V6 models.
6. MUZMIOZ Electronic Throttle Body Assembly (Replacement S20236 67-2000)
| Manufacturer Part Number | MUZ-ETB-S20236 |
|---|---|
| OEM Part Number | S20236 67-2000 TB1292 16400RN0A01 16400RYEA01 |
| Item Weight | 3.12 pounds |
This MUZMIOZ electronic throttle body is a plug-in replacement designed to restore proper throttle response and clear limp-mode symptoms on affected Acura and Honda 3.5L V6 models. It installs like a factory replacement and is used to replace a worn or failing throttle body that can cause poor acceleration, rough idle, or fault codes. Notable features include compatibility with several OEM part numbers and a design that mirrors original fitment for a straightforward swap without major modifications. In real-world use it promises to return smooth throttle actuation and consistent idle control, which many buyers report resolving limp-mode and drivability issues. The product includes a one-year after-sales service for added confidence. Limitations are that fitment must be verified against your vehicle and OEM part numbers before purchase and that it is an aftermarket unit rather than branded factory original, which may matter to buyers seeking factory-sourced parts.
Best for: Convenience-driven buyers who want a straightforward, no-fuss replacement to fix throttle-related limp-mode or poor throttle response quickly without dealer visits.
Less Ideal for: Buyers who require factory-branded parts for warranty or resale reasons or those who prefer dealer-installed components and factory sourcing.
- Direct-replacement design matched to common OEM part numbers for easier installation
- Reports from users indicate it resolves limp-mode and restores normal acceleration
- One-year unlimited-mileage after-sales support for post-install confidence
- Aftermarket part rather than factory-branded unit so some buyers may prefer OEM sourcing
- Requires careful fitment verification against vehicle and part numbers before installation
Verdict: A practical, plug-in aftermarket throttle body that restores throttle control and fixes limp-mode for compatible Acura/Honda 3.5L V6 models.
7. SZKAIDAG Electronic Throttle Body 16400RN0A01 (6-Pin)
| Model | Throttle Body 16400RN0A01 |
|---|---|
| Pins | 6 |
| Housing Material | Aluminum |
| Throttle Position Sensor Included | Yes |
| Position | Front |
This SZKAIDAG electronic throttle body is a replacement for vehicles that use the 16400RN0A01-style unit and includes a 6-pin connector and built-in throttle position sensing. In real use the part restores accurate airflow control to the intake, which translates to steadier idle, sharper throttle response and can clear throttle-related diagnostic codes caused by a failing unit. Installation is typical for throttle bodies and generally straightforward for a competent DIYer or technician when mating to the factory intake and wiring harness. The aluminum housing and preinstalled sensors mean you do not need separate sensor transfers, though a new intake gasket is required and not included. Expect improved cold-start behavior and better drivability if your original unit was carbon-clogged or electrically degraded. The part is function-focused and does not bundle extra hardware, so plan to have basic hand tools and the correct gasket on hand; professional calibration or throttle relearn may be necessary after fitment to ensure the ECU recognizes the new sensor signals.
Best for: Risk-averse mainstream buyers who prefer a straightforward factory-style replacement to fix rough idle, hesitation, or throttle-related error codes on their Acura RDX and prioritize reliability over aftermarket performance tweaks.
Less Ideal for: Drivers seeking performance upgrades or modified throttle response for racing should look at performance-specific units rather than a stock-style replacement.
- Direct-fit replacement for vehicles using the 16400RN0A01 configuration with 6-pin connector
- Built-in throttle position sensor and motorized actuator for restored throttle control
- Aluminum housing that matches factory-style construction
- Prewired connector reduces need to transfer sensors from the old unit
- Gasket and mounting hardware are not included
- May require throttle relearn or ECU adaptation after installation
Verdict: A direct-fit, sensor-equipped replacement that restores factory throttle control and drivability for RDX owners experiencing throttle-body issues.
Choosing the Right Acura RDX Throttle Body: Key Factors to Consider
Precise Fitment And Mounting
Correct fitment ensures the throttle body mounts flush to the intake manifold and lines up with existing gaskets and throttle linkage. A part that requires modification or adapter plates can introduce vacuum leaks or alignment issues that affect idle and driveability.
Pay attention to bolt pattern, throttle shaft orientation, and connector locations. Even small differences in flange flatness or port alignment can change how air flows into the engine, so prioritize components that document direct fitment for the Acura RDX.
Airflow Characteristics And Calibration
The throttle body controls how much air enters the engine, so its bore size and throttle plate geometry influence throttle response and power delivery. Parts with poorly matched airflow profiles can cause hesitation, bogging, or a disconnected throttle feel.
Look for components that specify calibrated plate movement and smooth throttle actuation. Consistent, predictable airflow across the operating range helps maintain steady acceleration and supports reliable engine management.
Electrical And Sensor Compatibility
Many modern throttle bodies integrate sensors such as the throttle position sensor and idle control devices. Matching the electrical connector, signal routing, and sensor specifications is essential to prevent check-engine lights or incorrect engine mapping.
Verify that the replacement uses the same sensor types and produces comparable voltage or resistance curves. If the signals differ, the vehicle may require reprogramming or additional adapters to communicate correctly with the engine control unit.
Idle Control And Low-Speed Behavior
Idle stability is often affected by how the throttle body manages small openings and bypass air. Components with coarse tolerances or imprecise idle control passages can lead to surging, stalling, or rough idling under load.
Consider how the design addresses idle air flow and whether it supports smooth transitions at low throttle angles. Reliable low-speed behavior reduces the need for repeated adjustments and improves everyday drivability.
Materials, Durability, And Corrosion Resistance
Throttle bodies are exposed to heat, vibration, and engine bay contaminants. Materials and surface finishes determine how well a component resists corrosion and wear over time. Inferior finishes can lead to sticking plates or wasted sealing surfaces.
Choose parts made from corrosion-resistant alloys or with protective coatings, and ensure moving components have suitable bushings or bearings. Long-term durability reduces the chance of throttle body malfunction and minimizes maintenance interventions.
Serviceability And Replacement Parts
Some throttle bodies are easier to service than others, with available rebuild kits, replaceable sensors, or documented cleaning procedures. Ease of service affects how quickly you can address common issues such as carbon buildup or sensor failure.
Check whether replacement gaskets, rebuild kits, and sensors are readily available and whether routine maintenance can be performed without removing the entire intake assembly. Better serviceability lowers ownership costs and extends the useful life of the component.
How We Chose the Best Acura RDX Throttle Body
To assemble this list we applied focused, vehicle-specific filters to find throttle bodies suited to the Acura RDX. We prioritized precise fitment to factory mounting points and electrical connectors to ensure straightforward installation and reliable operation. Airflow accuracy and throttle plate calibration were assessed to determine how closely a part would reproduce intended engine response and idle behavior. Sensor compatibility, including throttle position sensor signal alignment, was another key criterion to avoid drivability issues or error codes. Durability factors such as corrosion-resistant materials and warranty coverage helped narrow candidates that hold up over time. We excluded parts that lacked clear fitment documentation for the Acura RDX, components with ambiguous or missing electrical connector details, and any items without verifiable manufacturing standards. The final selection reflects practical tradeoffs between compatibility, control precision, and long-term reliability for this vehicle.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common throttle body symptoms on an Acura RDX?
Common symptoms often include rough or fluctuating idle, reduced throttle responsiveness, and intermittent stalling. You may also see a check-engine light triggered by throttle position sensor faults or airflow irregularities. These signs frequently point to buildup, sensor drift, or mechanical wear within the throttle body.
Can throttle body cleaning fix idle surge or rough idling?
Cleaning often helps when carbon and grime restrict airflow around the throttle plate, improving idle stability and low-speed response. However, if the cause is a failing sensor, worn linkage, or electrical issue, cleaning alone may not resolve the problem. Cleaning is a reasonable first step but may need to be paired with diagnostics.
How do I know if I need a throttle body replacement or a rebuild kit?
If the housing is cracked, mounting points are damaged, or electronic components have failed, replacement is usually the safer option. Rebuild kits can be appropriate when wear is limited to gaskets, seals, or a sticky throttle shaft and the electronics remain functional. Diagnosis should confirm whether mechanical wear or sensor failure is the root cause.
Will replacing the throttle body require ECU reprogramming?
Often the vehicle will relearn throttle parameters automatically through drive cycles, but some situations may benefit from a manual throttle position relearn or ECU reset. If the replacement uses different sensor characteristics, reprogramming or calibration may be required to prevent drivability issues. Consult procedural guidance for the specific vehicle.
Is professional installation necessary for a throttle body swap?
Many owners can handle a throttle body swap with basic mechanical skills, proper tools, and attention to connector and gasket sealing. However, if the job involves electrical troubleshooting, sensor calibration, or difficult access, a professional install reduces the risk of vacuum leaks, incorrect wiring, or improper torque on mounting bolts.
Conclusion
When choosing a throttle body for an Acura RDX, prioritize precise fitment, matching electrical and sensor characteristics, and airflow calibration that mirrors the vehicle's requirements. Balance durability and serviceability to minimize future maintenance. Accept that there are tradeoffs between ease of installation, long-term reliability, and how closely a part reproduces factory throttle behavior. Focus on documented compatibility and the factors outlined above to choose a component that restores smooth throttle response and dependable idle performance.
Explore More:
- Check out all Acura RDX parts & accessories
- Explore Throttle Bodies Maintenance & Repair Guides
- Explore Engine
- Browse all Auto Parts
