REPUBLIC 31-2373 Nos American Engine Mount 15904988-101

( Brand: Republic ), ( Manufacturer Part Number: 31-2373 ), ( Material: Rubber ), ( Vintage Part: Yes ), ( Placement On Vehicle: Motor ), ( California Prop 65 Warning: Prop65 Warning ), ( Type: Engine Mount ), ( Ipn: 15904988-101 ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: No ), ( Country Of Origin: United States )

Review REPUBLIC New Nos American Motors Engine Mount fits AMBASSADOR 1973

The **Republic 31-2373 NOS (New Old Stock) American Ambassador 1973 Engine Mount** is a meticulously preserved, high-quality reproduction component designed to restore authenticity and performance to vintage American Ambassador vehicles from the early 1970s. Crafted with precision engineering, this engine mount is a faithful replication of the original factory-spec part, ensuring seamless integration with the classic powertrain of the Ambassador s iconic inline-six or V8 engines. Built from durable, heat-resistant materials, this mount is engineered to withstand the rigors of daily driving while maintaining the structural integrity and alignment critical for smooth operation. Whether you re restoring a pristine 1973 Ambassador for show or seeking to enhance the reliability of a beloved classic, this NOS mount delivers both heritage and performance. Its robust construction and attention to detail make it an essential upgrade for enthusiasts who demand nothing less than factory-level accuracy in their restoration projects. With its clean, unaltered condition and genuine fitment, this engine mount is a testament to Republic s commitment to preserving automotive history while ensuring modern durability.

**Pros and Cons of Buying a Republic 31-2373 NOS (New Old Stock) American Ambassador 1973 Engine Mount**

1. **Authenticity and Originality** A NOS part is genuine and has never been installed or used, ensuring it matches the original specifications of the vehicle. This is particularly valuable for collectors or enthusiasts who prioritize historical accuracy.

2. **Longevity and Durability** Since the part has been stored properly (assuming it was), it should still be in excellent condition, with no wear from installation or exposure to the elements. High-quality materials from the 1970s were often robust, and a NOS mount could retain its structural integrity over time.

3. **Ease of Installation** Because the part is new and unused, it should fit perfectly without the need for modifications or adjustments, assuming it was stored correctly. This reduces the risk of compatibility issues that can arise with aftermarket or refurbished parts.

4. **Resale Value** NOS parts are highly sought after in the classic car restoration and parts market. If you ever decide to sell or trade the vehicle, having original components can increase its value, especially among purists.

5. **Peace of Mind** Knowing you re using an original, unaltered part can be reassuring, particularly for those restoring a vehicle to showroom condition. It eliminates concerns about aftermarket parts failing or not meeting original specifications.

6. **Historical Significance** For owners who appreciate the craftsmanship of the era, a NOS part represents a tangible piece of automotive history. It connects the vehicle to its original production standards, which may have been higher in some cases than modern alternatives.

7. **Potential for Future Repairs** If the engine or related components require further work down the line, having an original mount ensures that future repairs or replacements will also align with the vehicle s original configuration.

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1. **High Cost** NOS parts are significantly more expensive than aftermarket or refurbished alternatives. The price reflects their rarity, original condition, and the demand from collectors. For a budget-conscious restorer, this can be a major drawback.

2. **Limited Availability** NOS parts are not mass-produced, and finding one in stock may require extensive searching through specialty dealers, auctions, or private sellers. This can delay restoration timelines and may not always yield a suitable match.

3. **Storage and Handling Risks** Even if the part is NOS, improper storage over the decades (e.g., exposure to moisture, oil, or extreme temperatures) could have degraded it. While rare, there is always a risk that the part may have been damaged or contaminated during its time in storage.

4. **Overkill for Some Applications** If the vehicle is primarily used for casual driving or not intended for concours-level restoration, a NOS part may be unnecessary. Aftermarket or refurbished parts could suffice while saving money.

5. **Ethical and Practical Concerns** Some NOS parts come from vehicles that were scrapped or dismantled for parts. While this is legal, it may not sit well with owners who prefer parts from vehicles that were fully preserved or donated. Additionally, sourcing parts ethically can be challenging, as some dealers may not disclose the origin of the part.

6. **Potential for Counterfeit NOS Parts** The NOS market is not always regulated, and some sellers may mislabel refurbished or reconditioned parts as NOS to inflate their value. Buyers must thoroughly research sellers and verify the part s authenticity to avoid scams.

7. **Weight and Space Considerations** Original parts, especially those from older vehicles, may be heavier or bulkier than modern alternatives. This could impact performance, fuel efficiency, or installation complexity in some cases.

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Buying a NOS Republic 31-2373 engine mount for a 1973 American Ambassador is a decision that hinges on priorities. If authenticity, historical integrity, and long-term value are paramount, the benefits of a NOS part such as originality, durability, and resale appeal far outweigh the drawbacks. The part is ideal for restorers aiming for showroom perfection, collectors, or enthusiasts who value the vehicle s heritage.

However, if budget constraints, practicality, or ethical concerns are significant factors, an aftermarket or refurbished alternative may be a more practical choice. The high cost and potential availability issues of NOS parts make them less suitable for casual drivers or those restoring vehicles for functional use rather than preservation.

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- You are restoring the vehicle to original specification or preparing it for concours-level competition.

- Budget is not a limiting factor, and you are willing to pay a premium for authenticity.

- You have verified the seller s reputation and the part s condition to ensure it is truly NOS and not refurbished.

- You prioritize the historical and resale value of the vehicle over cost savings.

- You are on a tight budget and need to balance cost with quality.

- The vehicle is primarily for daily driving or light use, and originality is not a priority.

- You are unable to locate a reputable seller offering the part at a reasonable price.

- Ethical concerns about the sourcing of NOS parts make you uncomfortable with purchasing it.

For most enthusiasts, the NOS part is a worthwhile investment if the opportunity arises, but it is not a necessity unless the project demands it. Always weigh the long-term benefits against the immediate costs and ensure the part meets your specific needs before making a purchase.

Details:

Buyer pays return shipping unless we sent a defective item or it was damaged during. We combine shipping. 1973AMCAmbassador5.9L Engine - Front Left. 1973AMCAmbassador6.6L Engine - Front Left.

New NOS American Motors Ambassador 1973 Engine Mount 31-2373. Please look closely at the pictures for condition before buying. We buy collections and portions of. Are you in charge of an estate that want to sell.

This means there could be some discoloration, markings, scratches, or other defects. What you see is what get. Any questions. 1973AMCAmbassador5.0L Engine - Front Left.

part #: 312373 price

• $24.99

specifications engimou:

• for models: Ambassador
• for years: 1973
• brand: Republic
• mpn: 31-2373
• material: Rubber
• vintage part: Yes
• placement on vehicle: Motor
• california prop 65 warning: Prop65 Warning
• type: Engine Mount
• ipn: 15904988-101
• manufacturer warranty: 1 Year
• universal fitment: No
• country of origin: United States

returns engimou:

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

shipping engimou:

• cost: $9.42
• type: Fixed
• carrier: USPS
• transit: 3-7 Days
• service: USPS Ground Advantage
• class: Standard

general engimou:

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

payments engimou:

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

seller engimou:

• city: Andover, Minnesota
• # reviews: 5390
• rating: 99.7%

offer engimou:

• availability: In Stock
• started: May 11, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home
• best offers: True

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