GENUINE PORSCHE 999-084-215-01 Engine Mount Lock Nut

( Brand: Genuine Porsche ), ( Manufacturer Part Number: 999-084-215-01 ), ( Type: Engine Mount Lock Nut ), ( Manufacturer Warranty: 1 Year )

Review GENUINE PORSCHE Engine Mount Lock Nut Pc Warranty fits 1999–2012

The **Porsche 999-084-215-01** is a precision-engineered, high-performance engine mount lock nut specifically designed for the **911 (996) generation**, spanning the model years **1999 through 2008**. This critical component plays a vital role in maintaining structural integrity and alignment within the engine bay, ensuring optimal suspension performance, drivetrain stability, and overall vehicle handling. Crafted from **high-grade, heat-treated steel**, the nut is engineered to withstand the extreme forces exerted by the 911 s powerful engines whether the naturally aspirated **3.6L Flat-6** or the high-revving **3.8L Flat-6** found in the Turbo and GT3 variants while resisting vibration, fatigue, and loosening over time. Its **12mm thread size** is meticulously machined to Porsche s exacting standards, guaranteeing a secure, interference-free fit with the corresponding engine mount stud, preventing unwanted movement that could lead to drivetrain misalignment, suspension wear, or even catastrophic failure under high-stress conditions.

Beyond its functional purpose, this part embodies Porsche s commitment to **durability and reliability**, a hallmark of the brand s engineering philosophy. The nut s design incorporates **anti-loosening features**, such as a **locking mechanism or serrated threads**, to prevent backslippage during aggressive driving, track use, or prolonged high-speed cruising. Whether installed on a **911 Carrera, Turbo, GT3, or GT3 RS**, this component is essential for preserving the vehicle s performance characteristics, including precise steering response, reduced body roll, and a seamless connection between the engine, transmission, and chassis. For enthusiasts and mechanics alike, sourcing an **OEM-quality 999-084-215-01** ensures compatibility with the original Porsche assembly, avoiding the risks associated with aftermarket knockoffs that may compromise fitment or longevity. Proper installation, typically requiring a **torque wrench set to the manufacturer s specifications**, is paramount to maximizing the nut s performance and extending the life of the engine bay components it secures.

### **Pros and Cons of buying a Porsche 999-084-215-01 (1999-2008 Engine Mount Lock Nut, 12mm) Online**

1. **Authentic Porsche Part** This is an original equipment (OEM) part from Porsche, ensuring compatibility with your vehicle. Aftermarket parts may not fit as precisely or last as long.

2. **Reliability** Porsche OEM components are built to the same high standards as the rest of the vehicle, reducing the risk of premature failure or poor performance.

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

4. **Prevents Vibration Issues** The engine mount lock nut secures the engine mounts in place, preventing excessive vibration, rattling, or potential damage to surrounding components.

5. **Easy Installation** Since it s a simple bolt, replacing it is a straightforward DIY job requiring basic tools (12mm socket/wrench and a torque wrench for proper tightening).

6. **Prevents Long-Term Damage** A loose or missing lock nut can lead to engine mount failure, which is costly to repair. Replacing it early avoids more extensive damage.

7. **Available from Trusted Sources** Many online marketplaces (eBay, Porsche parts dealers, or specialty auto shops) stock this part, making it accessible without needing a dealer visit.

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1. **Cost** OEM Porsche parts are expensive compared to aftermarket alternatives. The price may range from $50 to $150 , depending on the seller and condition.

2. **Potential Counterfeit Parts** Buying from unverified sellers increases the risk of receiving a fake or low-quality part. Always check seller ratings, return policies, and authenticity guarantees.

3. **Shipping Delays** If ordering from an overseas seller or a busy marketplace, delivery times can be unpredictable, especially if the part is in high demand.

4. **Limited Availability** Some sellers may not stock this specific part, requiring extra time to find a reliable source.

5. **Installation Knowledge Required** While simple, improper tightening (over-torquing or under-torquing) can damage the mount or nut. If unsure, consulting a mechanic may be wise.

6. **No Immediate Savings** Unlike aftermarket parts, there s no significant cost reduction, so the purchase is purely for reliability rather than budget savings.

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Buying the **Porsche 999-084-215-01 engine mount lock nut (12mm)** is a **practical and necessary investment** if you re experiencing vibration issues, suspect a loose mount, or want to preemptively maintain your vehicle. The OEM part ensures durability and compatibility, but the higher cost and risk of counterfeit parts require careful consideration.

If you re confident in your ability to source the part from a **trusted seller** (such as an authorized Porsche dealer, a well-reviewed online retailer, or a reputable auto parts marketplace), purchasing it is the best choice for long-term reliability. If budget is a concern, verify that the part is indeed necessary before committing, as aftermarket alternatives (though riskier) may be cheaper but only if you re certain of their quality.

1. **Verify the Need** Check if the vibration or rattling is indeed coming from the engine mounts before buying. A mechanic can confirm if the lock nut is the issue.

2. **Buy from a Trusted Source** Purchase from an **authorized Porsche dealer, a verified online retailer with good reviews, or a specialty auto parts shop** (e.g., RockAuto, Porsche Parts Warehouse, or eBay with seller guarantees).

3. **Check for Authenticity** Ensure the part number matches exactly (999-084-215-01) and that the seller provides proof of authenticity if possible.

4. **Consider Installation** If unsure about tightening torque, consult a mechanic to avoid damaging the mount.

5. **Compare Prices** While OEM is best, compare prices across sellers to ensure you re not overpaying for a rare part.

**Final Verdict:** If the part is needed and sourced responsibly, buying the **Porsche 999-084-215-01 OEM lock nut** is the safest and most reliable option for maintaining your vehicle s performance and preventing further damage.

Details:

Compatibility. Made By: GENUINE PORSCHE. Authenticity Guaranteed. FOR PORSCHE 1999 2008 Engine Mount Lock Nut 12mm 1 PC GENUINE 1 YEAR WARRANTY.

Brand NEW part with full 1 year warranty. Free Fast Shipping. Drive Assured: Your Source for Authentic Car Parts. Manufacturer Number: 999 084 215 01.

specifications engimou:

• for makes: Porsche
• for years: 1999-2012
• brand: Genuine Porsche
• mpn: 999-084-215-01
• type: Engine Mount Lock Nut
• manufacturer warranty: 1 Year

general engimou:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts

payments engimou:

• credit card: Discover
• other
• wallet: Paypal

seller engimou:

• # reviews: 18127
• rating: 99.7%
• city: Glendale, California

offer engimou:

• availability: In Stock
• quantity: 3
• options: Ship-to-home
• sold: 0
• started: February 14, 2026

returns engimou:

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

shipping engimou:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 5-11 Days

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