AUTOZONE/PIONEER 621008 Automatic Transmission Mount

( Brand: Autozone/pioneer ), ( Manufacturer Part Number: 621008 ), ( Type: Automatic Transmission Mount )

Review AUTOZONE/PIONEER Automatic Transmission Mount Nissan fits 300ZX 1984–1989

The **Autozone/Pioneer 621008 Automatic Transmission Mount** is a precision-engineered replacement part designed specifically for the **1984 1989 Nissan 300ZX**, ensuring a secure and stable connection between the transmission and the vehicle s frame. This high-quality mount is crafted to match the exact specifications of the original equipment, delivering reliable performance and durability under the demanding conditions of daily driving, spirited acceleration, or heavy loads. Built with robust materials, including reinforced rubber and durable metal components, this mount is engineered to withstand the constant stress of engine vibrations, torque fluctuations, and road imperfections, helping to prevent premature wear on both the transmission and the suspension system. Whether you're restoring a classic 300ZX to its former glory or maintaining a well-loved performance vehicle, this mount provides the necessary support to keep your drivetrain aligned and functioning smoothly. Its universal fit ensures compatibility with the **U135 5-speed automatic transmission** found in these models, making it an essential component for any transmission-related repair or upgrade project. By installing this mount, you not only restore proper alignment but also enhance the overall driving experience by reducing unwanted noise, rattles, and potential transmission misalignment issues that can arise from worn or failing mounts. Trusted by mechanics and enthusiasts alike, the **Pioneer 621008** is a dependable choice for those seeking a direct-fit, high-performance solution for their Nissan 300ZX.

Buying the **AutoZone/Pioneer 621008 automatic transmission mount** for a **1984-1989 Nissan 300ZX** (with the U13/U14 transmission) has both advantages and drawbacks, depending on your needs, budget, and experience level.

1. **Compatibility and Fit:** This is a direct replacement part designed specifically for the U13/U14 transmission in the 300ZX, ensuring proper alignment and function without modification.

2. **Cost-Effective:** Compared to a full transmission rebuild or replacement, this mount is a relatively inexpensive fix, often costing less than $50 $100, depending on the source.

3. **Prevents Further Damage:** A failing transmission mount can cause excessive movement, leading to clutch or transmission damage. Replacing it early can save money on more extensive repairs.

4. **Easy Installation:** For those with basic mechanical skills, this part is straightforward to replace, requiring only basic tools (socket set, jack, and jack stands).

5. **Widely Available:** Since it s a common part for this generation of Nissan, you can find it at most auto parts stores (AutoZone, RockAuto, Amazon, etc.) or through online marketplaces.

1. **Quality Concerns:** Some buyers report that aftermarket mounts (especially cheaper brands) may wear out quickly or lack the durability of OEM parts. The 621008 is a generic part, not necessarily an exact OEM replica.

2. **Potential for Misalignment:** If installed incorrectly, the mount could cause transmission misalignment, leading to clutch slippage or transmission shifting issues.

3. **No Warranty (Unless Purchased from a Reputable Dealer):** Most aftermarket parts come with no warranty, meaning if it fails prematurely, you re responsible for replacement costs.

4. **May Not Address Underlying Issues:** If the mount failure is due to a larger problem (e.g., worn transmission pan bolts, improper installation, or a failing transmission), replacing just the mount won t fix the root cause.

5. **Limited Longevity:** While it should last for years with proper installation, some users report that aftermarket mounts wear out faster than OEM parts, especially under heavy loads or in high-mileage vehicles.

If your **300ZX s transmission mount is failing** (evidenced by rattling, clunking noises, or excessive movement when shifting), replacing it with the **AutoZone/Pioneer 621008** is a **practical and cost-effective solution** provided you install it correctly. This part is a good choice for **DIYers** who want to avoid more expensive repairs and prevent further transmission damage.

- **Using an OEM or high-quality aftermarket mount** (e.g., from **RockAuto, eBay, or a trusted parts supplier**) to ensure better longevity.

- **Checking for other related issues** (e.g., worn transmission pan bolts, clutch problems) before installation.

- **Consulting a mechanic** if you re uncomfortable with the job to avoid misalignment or improper fitting.

**Final Recommendation:** If you re confident in your mechanical skills and the part is installed correctly, the **621008 mount is a solid, budget-friendly fix**. However, if you want maximum reliability, consider investing in a **higher-quality or OEM replacement** and ensure all related components are in good condition.

Details:

Placing an order outside the US is easy. Updated 10.19.2023. Pioneer 621008 Automatic Transmission Mount For 84-89 Nissan 300ZX.

All accessories hardware. Pioneer Mounts offer a premium replacement solution. Each housing is then bonded with a blended rubber compound that specific to each application including seamless hydraulic fill and electronic control where specified ensuring proper absorption of vibrations. Original packaging.

The only mount with the Sure-Fit System - a process of application testing on vehicle specific fixtures that ensures hassle-free installation.

specifications engimou:

• for models: 300zx
• for makes: Nissan
• for years: 1984-1989
• brand: Autozone/pioneer
• mpn: 621008
• type: Automatic Transmission Mount

payments engimou:

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

offer engimou:

• started: February 6, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock

seller engimou:

• # reviews: 144610
• city: Miami, Florida
• rating: 99.4%

general engimou:

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

shipping engimou:

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

returns engimou:

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

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