KIA 546.KI1116 Gas Accelerator Pedal 4578-18

( Part Type: Pedal ), ( Genuine Oem: Yes ), ( Ipn: 546.ki1116 )

Review KIA Gas Accelerator Pedal Oem fits SORENTO 2016–2020

The **Kia 546.ki1116 accelerator pedal** (part number **4578-18**) is a precision-engineered component designed exclusively for the **2016 2020 Kia Sorento** models equipped with a **gasoline engine**, ensuring seamless throttle response and optimal driving performance. Crafted from high-quality, durable materials, this accelerator pedal is built to withstand the demands of daily driving while maintaining reliability and longevity. The pedal features a **smooth, ergonomic design** that enhances driver comfort and control, reducing fatigue during extended journeys. Its **robust construction** incorporates reinforced linkages and a **wear-resistant coating**, minimizing friction and preventing premature wear, which is particularly beneficial in vehicles with high mileage or those frequently used in stop-and-go traffic. The pedal s **precise calibration** ensures consistent throttle engagement, contributing to a refined and responsive driving experience. Whether navigating city streets or cruising on the highway, this accelerator pedal delivers the **sensitivity and responsiveness** expected from a Kia vehicle, making it an essential replacement for those experiencing pedal wear, stiffness, or malfunction. Ideal for both professional mechanics and DIY enthusiasts, this genuine OEM part guarantees a perfect fit and seamless integration with the Sorento s throttle system, restoring the vehicle s intended performance with ease.

### **Pros and Cons of Buying a Kia 546.ki1116 (2016-2020 Sorento) Gas Accelerator Pedal (Part #4578-18)**

1. **Direct OEM Replacement** This part is an original Kia component, ensuring a perfect fit and compatibility with the 2016-2020 Sorento. It will function exactly as the factory pedal, reducing the risk of performance issues or improper installation.

2. **Reliable Quality** Kia s aftermarket parts are generally well-built, with durable materials designed to withstand regular use. The accelerator pedal is a critical safety component, so a high-quality replacement minimizes wear and tear over time.

3. **Warranty Coverage** If purchased from an authorized Kia dealer or a reputable aftermarket supplier, this part may come with a warranty (typically 12-60 months), providing peace of mind against defects or premature failure.

4. **Easy Installation** The accelerator pedal is a straightforward component to replace, requiring only basic tools (screwdriver, socket set, and possibly a trim removal tool). Many DIYers can complete the job in under an hour without specialized equipment.

5. **Cost-Effective Alternative to Full Rebuild** If the pedal is the only failing component in the throttle system (e.g., no issues with the throttle body, wiring, or sensors), replacing just the pedal is far cheaper than a full throttle body or ECU repair.

6. **Prevents Driving Hazards** A faulty accelerator pedal can cause unintended acceleration, stalling, or erratic throttle response potentially dangerous situations. Replacing it ensures safe and predictable vehicle operation.

7. **Compatibility with Aftermarket Upgrades** If you plan to modify the throttle response (e.g., with a performance throttle body or ECU tune), an OEM-style pedal ensures proper integration without compatibility issues.

---

1. **Potential Counterfeit or Low-Quality Replacements** If buying from an untrusted seller (e.g., eBay, Facebook Marketplace, or unknown online stores), there s a risk of receiving a knockoff part that may fail prematurely or not fit correctly. Always verify the seller s reputation and part authenticity.

2. **Limited Availability Outside Kia Dealers** While widely available at Kia dealerships, this part may be harder to find at independent auto parts stores unless they carry Kia-specific inventory. Shipping times could be longer if ordering online.

3. **No Performance Upgrade** This is a stock replacement part, meaning it won t enhance acceleration, response time, or throttle feel. If you re looking for a sportier driving experience, you d need additional modifications (e.g., a performance throttle body or ECU flash).

4. **Possible Additional Diagnostics Needed** If the pedal failure is due to underlying issues (e.g., dirty throttle body, faulty throttle position sensor, or wiring problems), replacing just the pedal may not fully resolve the problem. A diagnostic scan (e.g., with an OBD-II tool) is recommended before purchase.

5. **Labor Costs if Not DIY** If you re not comfortable with automotive repairs, labor costs at a dealership or mechanic could range from **$80 $150**, adding to the total expense. The part itself typically costs **$50 $120**, depending on the source.

6. **Wear on Related Components** If the pedal was failing due to excessive use or a previous accident, other parts of the throttle system (e.g., throttle body, pedal linkage, or ECU) may also be worn. A thorough inspection is advisable before installation.

7. **Potential for Misalignment** If not installed correctly, the pedal could feel loose, stiff, or unresponsive. Improper installation may also trigger warning lights (e.g., "Check Engine" for throttle position sensor issues).

---

The **Kia 546.ki1116 accelerator pedal (part #4578-18)** is a **reliable, direct replacement** for the 2016-2020 Sorento, offering a safe and cost-effective solution to a failing pedal. Its **OEM quality, ease of installation, and safety benefits** make it a strong choice for most drivers. However, **buying from a trusted source** is critical to avoid counterfeit parts, and **checking for related throttle system issues** ensures a long-term fix.

If you re comfortable with basic repairs, replacing the pedal yourself is a **wise and economical** option. If not, factor in labor costs, but still opt for an **authorized dealer or reputable supplier** to guarantee quality.

---

1. **Verify the Part Number** Double-check that the part number **4578-18** matches your vehicle s exact model year and trim (some Sorento variants may have slight variations). Use Kia s official parts catalog or a trusted mechanic to confirm.

2. **Buy from Authorized Sources**

- **Kia Dealership** (highest assurance of authenticity and warranty).

- **RockAuto, Dorman, or AutoZone** (reputable aftermarket suppliers with good return policies).

- Avoid unknown sellers unless they provide a **money-back guarantee** or **authentication proof**.

3. **Inspect the Throttle System**

- Before purchasing, scan for **OBD-II codes** (e.g., P0120 P0128 for throttle position sensor issues).

- Clean the **throttle body** and check **wiring harnesses** for damage or corrosion.

- Test the **throttle position sensor (TPS)** if it s failing, replace it alongside the pedal.

4. **Follow Installation Steps Carefully**

- Disconnect the battery before starting.

- Remove the center console or pedal housing carefully to avoid damaging trim.

- Ensure the new pedal is **properly aligned** with the throttle linkage and sensor.

- Reconnect all wiring and test the pedal for smooth operation.

5. **Consider a Throttle Body Cleaning or Replacement**

- If the pedal was stiff or unresponsive due to **carbon buildup** in the throttle body, cleaning it (or replacing it if severely worn) will improve long-term performance.

6. **Test Drive After Installation**

- Accelerate smoothly to ensure the pedal responds correctly.

- Check for **warning lights** (e.g., "Check Engine") and address any new codes immediately.

**Final Verdict:** This is a **solid, cost-effective replacement** for a failing accelerator pedal in the 2016-2020 Kia Sorento, provided you source it from a trusted supplier and address any underlying throttle system issues. For most drivers, **DIY installation is feasible**, but if unsure, consult a professional to avoid costly mistakes.

Details:

Lowest Prices Quality. MENU Store Support. Part Number:N/A. Part Being Sold:GAS ACCELERATOR PEDAL.

Donor Vehicle: 2016 KIA SORENTO 2.4L AT. Item ID:457818.

part #: 546.ki1116 prices

• $30.00-$84.00

specifications pedalspadsaz:

• for models: Sorento
• for makes: Kia
• for years: 2016-2020
• part type: Pedal
• genuine oem: Yes
• ipn: 546.ki1116

seller pedalspadsaz:

• rating: 99.7%
• # reviews: 28533
• city: Mamou, Louisiana

returns pedalspadsaz:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

shipping pedalspadsaz:

• carrier: USPS
• service: USPS Ground Advantage
• transit: 5-8 Days
• class: Standard
• type: Fixed
• cost: $0.00

general pedalspadsaz:

• Car Truck Parts Accessories > Interior Parts Accessories > Pedal Assemblies, Pads Parts
• condition: Used

offer pedalspadsaz:

• availability: In Stock
• options: Ship-to-home
• started: May 8, 2026
• quantity: 1
• sold: 0

payments pedalspadsaz:

• other
• wallet: Paypal
• credit card: Mastercard

Kia 4578-18 Is Similar To:

• 023373 Kia Oem 2012-2013 Optima (19.4% similar) Please through messages...(August 9th, 2017)
• 080412f0284 2009 Kia Borrego Gas (25.5% similar) Spares are measured by the wheel not tire. If noted as assembly, it will include the lug wrench luggage rack: does not included bolts or hardware. Rockford, IL remote reservoirs and brackets will not be included power steering gear: includes Pittman arm rack pinion: we leave the tie rods on for ...(November 15th, 2017)
• 0k30a41600d Kia New Oem Accelerator (37.1% similar) Please through for any questions. They may have been in storage anywhere from 1-30 years. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc. Rubber parts, gaskets, hardware may need to be replaced and not usable. Shipping:free shipping is for continental USA ...(April 13th, 2017)
• 100414j0424 Kia Forte Gas Accelerator Pedal Oem (60.6% similar) KNAFU49A5245967. 108K miles, sedan, silver, vain. Donor car: 2010 kia forte, automatic...(February 25th, 2019)
• Oem Kia 10 Forte Accelerator 110810j0440 Gas Pedal 12 11 (50.8% similar) ...(February 24th, 2015)
• Throttle 16844 Gas Pedal 2002 Htbk Oem Kia Pad Spectra Accelerator (29.7% similar) This is a used part. Damaged or parts only items are sold as is taillight and headlight bulbs are not included in the sale all trims parts are sold without clips mounting hardware used computer modules may require programming to work properly...(June 25th, 2014)
• 2002 Kia Pedal Lever Pad Brake 16847 Oem Htbk Spectra Clutch (23% similar) It will show signs of wear such as scuffs and scratches...(November 24th, 2014)
• Oem Throttle Pedal Speed Optima Gas 2.4l 06 206 Control Kia Lever Prices Accelerator (26% similar) Please match part numbers before buying. This is a used part...(February 16th, 2015)
• 8511 Throttle 2001 Oem Prices Gas Kia Sportage Pad Accelerator Pedal (46.2% similar) Taillight and headlight bulbs are not included in the sale. It will show signs of wear such as scuffs and scratches. Damaged or parts only items are sold as is. All trims parts are sold without clips mounting hardware please match part numbers before buying. This is a used part...(October 30th, 2014)
• Oem Linkage Gas Accelerator 2006 Kia Wire 2004 Amanti Throttle Cable Prices 2005 (32.4% similar) Please look at pictures for exact condition and damage. Scuffs marks etc. Expedited shipping is not available on heavy and large items. Select make. Select model. And for that reason...(December 6th, 2014)
• Brake Prices Pedal Foot Oem 2005 2006 Kia Bracket Amanti (25.4% similar) Expedited shipping is not available on heavy and large items. Please look at pictures for exact condition and damage. And for that reason select make. Select model. Scuffs marks etc...(December 6th, 2014)