INNOVATIVE MOUNTS 113250-75A Steel Engine Bushings Kit 675505480031

( Brand: Innovative Mounts ), ( Manufacturer Part Number: 113250-75A ), ( Part Type: Engine Bushing ), ( Item Length: 10.30 ), ( Item Width: 10.10 ), ( Item Height: 6.70 ), ( UPC: 675505480031 )

Review INNOVATIVE MOUNTS Steel Engine Kit Black 75a Bushings Mazda fits MIATA 1990–1993

The **Innovative Mounts 113250-75A Steel Engine Kit with 75A Bushings** is a meticulously engineered upgrade designed to transform the handling, durability, and performance of your **1990 1993 Mazda MX-5 Miata** by addressing its stock suspension s limitations. This kit replaces the factory rubber engine mounts with **high-strength steel components**, significantly reducing engine and drivetrain movement under acceleration, braking, and cornering, while also eliminating the flex and rattles that plague stock mounts over time. Crafted from **precision-machined steel**, these mounts provide unmatched rigidity, ensuring the engine remains perfectly aligned with the subframe, which enhances power transfer, reduces torque steer, and minimizes unwanted motion that can lead to premature wear on the drivetrain and suspension components. The **75A polyurethane bushings** integrated into the kit further elevate performance by absorbing vibrations more effectively than rubber, while maintaining a firmer feel that sharpens the Miata s responsive handling. Whether you re pushing the limits on the track or simply seeking a more planted, composed drive on the road, this kit delivers a noticeable improvement in stability and precision. Installation is straightforward, requiring only basic tools, and the kit includes all necessary hardware, including bolts and washers, to ensure a secure and long-lasting fit. Ideal for both enthusiasts looking to refine their Miata s dynamics and those preparing their car for more demanding use, the **Innovative Mounts 113250-75A** is a proven solution that bridges the gap between stock reliability and high-performance capability.

### **Pros and Cons of buying a Innovative Mounts 113250-75A Steel Engine Kit with 75A Bushings for a 1990 1993 Mazda Miata**

1. **Improved Engine Mounting Stability** The steel mounts are significantly stiffer than OEM rubber mounts, reducing engine movement under acceleration, braking, and cornering. This helps prevent engine slop and improves drivability, especially in spirited driving conditions.

2. **Better Vibration Damping** While steel mounts are inherently stiffer, the included 75A bushings provide a balance between rigidity and some vibration isolation. This can reduce harshness compared to all-rubber mounts while still improving engine control.

3. **Enhanced Handling and Torsional Rigidity** The stiffer mounts help reduce the "floaty" feel of the engine, particularly noticeable in aggressive driving or when the suspension compresses. This can make the car feel more planted and responsive.

4. **Compatibility with Performance Modifications** If you ve added power (turbo, supercharger, or forced induction) or lowered the suspension, these mounts help maintain proper engine positioning, reducing stress on the drivetrain and improving reliability.

5. **Durability** Steel mounts are less prone to degradation from heat, oil, and age compared to OEM rubber mounts, which can crack or soften over time. The 75A bushings also resist hardening better than softer rubber options.

6. **Easier Installation** The kit is designed for the NA Miata and comes with all necessary hardware, making installation straightforward for those with basic mechanical skills. Many users report a relatively quick and clean install.

7. **Positive Community Feedback** The Innovative Mounts 113250-75A is widely recommended in Miata forums and reviews, with many owners noting improved feel and reduced engine movement after installation.

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1. **Harsher Ride Quality** Steel mounts transmit more road noise and vibration to the cabin compared to OEM rubber mounts. This can make the Miata feel less refined, especially on rough roads or over bumps.

2. **Potential for Excessive Stiffness** Some drivers find the mounts too rigid, leading to a "clunky" feel when the engine moves slightly under acceleration or deceleration. This can be more noticeable in stock or lightly modified cars.

3. **Limited Sound Deadening** The steel mounts do not isolate engine noise as well as rubber mounts, which can make the cabin feel louder, particularly at idle or during gear changes.

4. **Installation Challenges for Beginners** While the kit is straightforward, removing the old mounts and securing the new ones requires some mechanical skill. Improper alignment or overtightening can lead to stress on the engine or mounts.

5. **Cost Relative to OEM** The kit is more expensive than OEM rubber mounts, though the price is justified by the performance benefits. For stock drivers, the trade-off between stiffness and comfort may not be worth it.

6. **Potential for Mount Wear Over Time** While steel is durable, the 75A bushings can wear out or degrade if the mounts are not properly aligned or if the car is driven aggressively for extended periods.

7. **Not a Universal Fix for Engine Movement** If the engine is already misaligned or the subframe is bent, these mounts alone may not fully resolve the issue. A full alignment or subframe inspection may be needed.

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The Innovative Mounts 113250-75A steel engine kit with 75A bushings is an excellent upgrade for **performance-oriented NA Miata owners** who prioritize engine control, handling precision, and durability over ride comfort. It is particularly beneficial for those who have added power, lowered their suspension, or frequently drive aggressively. However, it may not be ideal for drivers who prioritize a soft, compliant ride or prefer minimal noise intrusion.

For **stock or lightly modified Miatas**, the benefits may not justify the trade-offs in comfort and noise. In such cases, a simpler upgrade like **OEM-style rubber mounts with improved bushings** (e.g., from Innovative or other brands) could offer a middle ground.

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- You drive your Miata aggressively or have modified it for more power.

- You notice excessive engine movement or a "floaty" feel under acceleration.

- You want improved torsional rigidity and better handling characteristics.

- You are willing to accept slightly harsher ride quality for the performance gains.

- You prioritize a soft, comfortable ride and minimal noise.

- Your Miata is stock or lightly modified, and you don t notice engine slop.

- You prefer a more balanced solution and are open to **softer bushings** (e.g., 60A or 70A) for a compromise between stiffness and comfort.

- Pair the steel mounts with **high-quality engine mounts** (e.g., Innovative s 75A or 80A options) to fine-tune stiffness.

- If you plan to lower your suspension, ensure the new mounts allow for proper clearance.

- Follow installation instructions carefully to avoid overtightening or misalignment.

For most **performance-focused NA Miata owners**, the Innovative 113250-75A is a worthwhile investment that enhances driving dynamics and reliability. For others, a more moderate upgrade may suffice.

Details:

Stress Analyzed. Uses Stock/ORG.MFR Hardware. No Notching or Trimming of the Hood required. CAD/CAM designed.

Innovative Steel Mounts Engine Kit Black 75A Bushings for 1990 1993 Mazda Miata 113250-75A Replacement Mount For NEW Features: Fits any NA/NB chassis with the 90-93 MX-5 1.6L motor Direct Factory/ORG.MFR Uses Stock/ORG. For listings with free shipping, it only applies within the continental 48 states. Unique No-Tear Vibration Minimizing Bushings.

part #: 11325075a prices

• $244.73-$262.43

specifications engimou:

• for models: Miata
• for makes: Mazda
• for years: 1990-1993
• brand: Innovative Mounts
• mpn: 113250-75a
• part type: Engine Bushing
• item length: 10.30
• item width: 10.10
• item height: 6.70
• upc: 675505480031

offer engimou:

• started: May 22, 2026
• availability: In Stock
• quantity: 8
• options: Ship-to-home
• sold: 0

returns engimou:

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

payments engimou:

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

general engimou:

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

shipping engimou:

• class: Economy, Standard, Expedited
• transit: 5-7 Days
• type: Fixed
• service: Economy, Standard, Expedited
• cost: $0.00

seller engimou:

• # reviews: 75040
• city: Wrightstown, Wisconsin
• rating: 99.7%

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