PORSCHE 7L0399649C Transmission Mount Bracket A/t G316

( Manufacturer Part Number: 7L0399649C ), ( Type: Automatic Transmission ), ( Manufacturer Warranty: 1 Month ), ( Vintage Part: No ), ( Country Of Origin: Germany ), ( California Prop 65 Warning: Cancer And Reproductive Harm. )

Review PORSCHE A/t Transmission Mount Bracket fits CAYENNE 2003–2010

The **Porsche 7L0399649C 03-10 Cayenne A/T Transmission Mount Bracket (G316)** is a precision-engineered, high-performance component designed exclusively for Porsche s 997.2 generation Cayenne models produced between 2003 and 2010, featuring an automatic transmission (A/T). This transmission mount bracket serves as a critical structural and functional link between the transmission and the vehicle s underbody, ensuring optimal alignment, stability, and smooth power transfer while mitigating vibrations and excessive movement. Crafted from high-grade, heat-treated steel, the bracket is built to withstand the rigorous demands of Porsche s high-performance drivetrain, including the robust torque outputs of the 3.6L V6, 4.5L V8, and turbocharged 3.0L V6 engines found in this generation. Its robust design incorporates reinforced mounting points and precision-machined surfaces to maintain alignment with the transmission s bellhousing and the vehicle s subframe, preventing premature wear on the transmission mounts, drivetrain components, and suspension elements. This bracket is particularly essential for maintaining the integrity of the A/T s alignment, as misalignment can lead to erratic shifting, increased wear on the torque converter and transmission internals, and even potential damage to the differential or driveshafts. For enthusiasts and mechanics seeking to restore or upgrade their Cayenne s drivetrain, this genuine Porsche part ensures compatibility with the original vehicle specifications, offering a direct replacement that preserves the factory-intended performance and reliability. Whether used in routine maintenance, a rebuild, or a custom installation, the **7L0399649C** bracket is a vital component for preserving the Cayenne s legendary driving dynamics and ensuring long-term durability.

### **Pros and Cons of buying a Porsche 7L0399649C (03-10 Cayenne A/T Transmission Mount Bracket G316)**

1. **Direct Fitment** This part is specifically designed for the 2003-2010 Porsche Cayenne (G316) with an automatic transmission (A/T). It ensures compatibility without modifications, reducing the risk of installation issues.

2. **Authentic Quality** Porsche OEM parts are built to the same high standards as factory components, ensuring durability and proper function. This helps maintain the vehicle s performance and reliability.

3. **Prevents Transmission Mount Failure** The transmission mount bracket supports the transmission and engine, reducing stress on the mounts and preventing premature wear or failure. A failing mount can lead to transmission misalignment, rough shifting, or even transmission damage.

4. **Easy Installation** Since it s a direct replacement, it should fit seamlessly with minimal adjustments. Most mechanics can install it in a few hours, especially if the vehicle is already lifted or in a hoist.

5. **Long-Term Reliability** Porsche OEM parts are less likely to fail prematurely compared to aftermarket alternatives, which may use cheaper materials or subpar manufacturing processes.

6. **Warranty Coverage** If purchased from an authorized dealer or a reputable seller, the part may come with a warranty, providing peace of mind against defects.

7. **Maintains Resale Value** Using genuine Porsche parts helps preserve the vehicle s condition, which is important if you plan to sell or trade in the Cayenne in the future.

---

1. **High Cost** OEM parts from Porsche are significantly more expensive than aftermarket alternatives. The price of this bracket alone can range from **$100 to $200 **, depending on the seller and condition.

2. **Limited Availability** Since this is an older model (03-10 Cayenne), finding the exact part may require ordering from a specialty Porsche parts distributor, which could take time and may involve shipping costs.

3. **Potential Overkill for Minor Issues** If the mount bracket is only slightly worn or the problem is caused by something else (e.g., a loose bolt, worn bushings), replacing just the bracket may not fully resolve the issue. A full transmission mount assembly replacement might be needed in some cases.

4. **Installation Labor Costs** Even though it s a relatively simple part, labor costs for installation (especially if done by a Porsche specialist) can add **$100 $300 ** to the total expense.

5. **Risk of Counterfeit Parts** If purchasing from an unverified seller (e.g., eBay, Craigslist, or unlicensed online marketplaces), there s a chance of receiving a **fake or low-quality replica**, which could fail quickly.

6. **Alternative Solutions Exist** In some cases, repairing or reinforcing the existing mount (e.g., with a torque plate or upgraded bushings) may be a more cost-effective solution than a full bracket replacement.

---

Buying the **Porsche 7L0399649C (03-10 Cayenne A/T Transmission Mount Bracket G316)** is a **reliable and high-quality choice** if you need a direct replacement for a failing mount. The OEM part ensures proper fitment, durability, and compatibility, which is crucial for maintaining transmission and engine alignment. However, the **high cost and potential overkill for minor issues** make it less ideal if the problem is not severe.

If the mount is **cracked, broken, or showing significant wear**, this is the **best long-term solution**. If the issue is **minor (e.g., a loose bolt or slight vibration)**, considering **aftermarket alternatives or repairs** (such as reinforcing the mount) could save money without sacrificing performance.

---

**Buy the OEM bracket (7L0399649C) from an authorized Porsche dealer or a trusted parts supplier (e.g., Porsche Parts Direct, Porsche Specialists, or RockAuto with verified sellers).** Ensure the part is **new and in stock** to avoid delays.

**Explore aftermarket options** (e.g., **Eibach, Bilstein, or other high-quality transmission supports**) or **repair the existing mount** (e.g., with a torque plate or upgraded bushings) to save costs.

- **Always verify the part number and condition** before purchasing to avoid counterfeit or used parts.

- **Get a professional inspection** before buying to confirm whether the bracket is the **only** needed replacement or if additional work (e.g., alignment, transmission service) is required.

**Final Verdict:** The **OEM bracket is the safest choice for long-term reliability**, but weigh the cost against the severity of the issue before proceeding. If budget is a concern, a **reputable aftermarket alternative** may suffice for less critical applications.

Details:

This transmission mount bracket is in used condition.

part #: 7l0399649c prices

• $13.71-$65.09

specifications autotransmissionsgo:

• for models: Cayenne
• for makes: Porsche
• for years: 2003-2010
• mpn: 7l0399649c
• type: Automatic Transmission
• manufacturer warranty: 1 Month
• vintage part: No
• country of origin: Germany
• california prop 65 warning: Cancer And Reproductive Harm.

returns autotransmissionsgo:

• policy: No Returns

offer autotransmissionsgo:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: February 16, 2026

general autotransmissionsgo:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

payments autotransmissionsgo:

• credit card: Discover
• other
• wallet: Google-pay

seller autotransmissionsgo:

• city: Sacramento, California
• rating: 98.6%
• # reviews: 4091

shipping autotransmissionsgo:

• cost: $0.00
• service: Standard
• class: Standard
• type: Fixed
• transit: 4-8 Days

Porsche 7L0399649C Is Similar To:

• 0037592 Transmission 105k 98 Porsche 2.5l Zf 97 Automatic Boxster (34.6% similar) Fair condition. N new part manufactured from scratch. It might need substantial cosmetic restoration. Fully functional item. Might have minor cosmetic scratches and or scuffs. The cosmetic quality if applicable is not taken into consideration. If an item arrives damaged, please via message within 24...(February 6th, 2015)
• 03 04 Porsche Cayenne Automatic (42.4% similar) This part will only fit the makes and model's with options shown below. No expedited shipping is available. If an item arrives damaged, please via message within 24 hours for instructions...(January 8th, 2018)
• PORSCHE CAYENNE S 4.5 V8 GEARBOX TRANSMISSION AUTOMATIC TIPTRONIC 09D300036P (15.3% similar) For sale is a nice tested 2005 porsche CAYENNEV8 automatic transmission. Item comes with 90 day exchange warranty--transfer case not included in the sale...(May 29th, 2014)
• 09d300037g 05 Cayenne S Porsche 955 Automatic Transmission Converter Has 131 606 (50% similar) You are purchasing the used automatic transmission torque converter has part 09D. This assembly may have imperfections and is in excellent working condition and ready to install. 037G pictured removed from a 2005 porsche CAYENNE955 SUV automatic patronage AWD all wheel drive 4...(September 23rd, 2016)
• 09d300037m Porsche Cayenne Automatic Transmission (53% similar) ...(March 23rd, 2018)
• 09d300037r Porsche Cayenne Turbo Transmission Assembly (50.8% similar) Shipping buyer pays 225 fee in lower us. Not satisfied. Box, Guam, APO, hi. We normally reply within 12 hours. Please feel free to ask any specific questions regarding the item. Please view the item carefully and decide for yourself on cosmetic condition of...(May 15th, 2018)
• Automatic 09d300038h 955 Aisin Turbo Transmission 90 04 Awd Porsche 898 Cayenne (34% similar) You are purchasing the used raisin automatic transmission gearbox 09D3. 38H pictured removed from a 2004 porsche cayenne turbo 955 SUV automatic patronage AWD all wheel drive this assembly may have imperfections and is in excellent working condition and ready to install...(August 16th, 2015)
• 09d300039 Porsche Cayenne Automatic Transmission Assembly Miles Oem (50.4% similar) What you see in the photos is will receive, except multi quantity items, which may have small cosmetic differences, but not functionally or structurally different from pictures. Shipping prices for ground apply only to the continental us. Address available upon request. Items may show light scuffs, ...(May 6th, 2018)
• 0l8300037 Porsche Cayenne Automatic Transmission Assembly Oem (52.7% similar) What you see in the photos is will receive, except multi quantity items, which may have small cosmetic differences, but not functionally or structurally different from pictures. 8l 1 automatic transmission assembly oem donor vehicle: 2012 porsche Cayenne's - sport utility 4 door engine type. ...(May 6th, 2018)
• Porsche 911 996 Twin Turbo Transmission Tiptronic Automatic 2001-2005 A96.50 (47.2% similar) If you are looking for a brand new part, please buy new. It has only 35,000 miles on it and is a fully functioning transmission with no damage...(June 2nd, 2014)
• 350113 Cayenne 03 04 Porsche Automatic Transmission W Turbo Engine (46.3% similar) 4WD,TURBO, this part will fit these makes and model's with these options porsche cayenne 03. Please directly to make arrangements. W turbo engine porsche cayenne 04...(January 18th, 2016)