1. Boat Parts In Otsterndriv Sterndrive Prices For Sale.
  2. sku: 3773201190300604
  3. MERCURY 93321

MERCURY 93321 Gm Engine Exhaust Manifold Riser Spacer 7.4 V8

fits model: Marine, 454, Mercruiser. make: Mercury.

93321 Mercury Mercruiser 7.4 L 454 V8 Gm Marine Engine Exhaust Manifold Riser Spacer

( Manufacturer Part Number: 93321 ), ( Part Type: Engine Exhaust Manifold Spacer ), ( Country/region Of Manufacture: United States )

Review MERCURY 7.4 V8 Gm Engine Exhaust Manifold Riser Spacer fits MERCRUISER MARINE 454

The Mercury 93321 Exhaust Manifold Riser Spacer is an essential component designed specifically for MerCruiser 7.4 454 V8 GM Marine Engines. This part is engineered to provide a proper fit and function in the exhaust system, ensuring optimal performance and efficiency.

The riser spacer is manufactured using high-quality materials, ensuring durability and longevity. Its primary function is to raise the exhaust manifold to the correct height, allowing for proper clearance between the exhaust system and other engine components. This spacer is crucial in maintaining the correct exhaust flow and preventing potential exhaust leaks.

The Mercury 93321 Exhaust Manifold Riser Spacer is precision-machined to ensure a perfect fit on MerCruiser 7.4 454 V8 GM Marine Engines. Its smooth, polished finish not only enhances the engine's appearance but also reduces the risk of damage to other components during installation.

This riser spacer is an OEM (Original Equipment Manufacturer) replacement part, meaning it is an exact match to the original component that came with your engine. By using a genuine Mercury part, you can trust that you are getting the best possible fit, function, and performance for your marine engine.

Installing the Mercury 93321 Exhaust Manifold Riser Spacer is a straightforward process. However, it is always recommended to consult your engine's service manual or consult with a certified marine technician to ensure proper installation and prevent any potential issues.

In summary, the Mercury 93321 Exhaust Manifold Riser Spacer is a vital component for MerCruiser 7.4 454 V8 GM Marine Engines. It is designed to provide proper clearance and ensure optimal exhaust flow, resulting in improved engine performance and efficiency. This high-quality, precision-machined part is an exact OEM replacement, ensuring a perfect fit and function for your marine engine.

Pros and Cons of Buying a Mercury 93321 Exhaust Manifold Riser Spacer for a 7.4 454 V8 GM Marine Engine

Introduction:

The Mercury 93321 exhaust manifold riser spacer is an essential component for marine engine enthusiasts who own a 7.4 454 V8 GM Marine Engine. This part helps to improve engine performance by reducing exhaust gas temperatures and ensuring proper clearance between the exhaust and other components. In this article, we will discuss the pros and cons of buying this product to help you make an informed decision.

Pros:

1. Improved Engine Performance: The Mercury 93321 exhaust manifold riser spacer can help improve engine performance by reducing exhaust gas temperatures and providing proper clearance between the exhaust and other components. This can lead to better fuel efficiency and increased horsepower.

2. Durable Construction: This product is made from high-quality materials, including steel and ceramic, which ensures durability and long-lasting performance.

3. Easy Installation: The Mercury 93321 exhaust manifold riser spacer is designed for easy installation, and most users can complete the process in less than an hour.

4. OEM Quality: This product is an original equipment manufacturer (OEM) replacement part, which means it meets the same quality standards as the original part that came with your engine.

5. Improved Safety: By reducing exhaust gas temperatures and ensuring proper clearance between the exhaust and other components, the Mercury 93321 exhaust manifold riser spacer can help improve safety by reducing the risk of engine damage or failure.

Cons:

1. Cost: The Mercury 93321 exhaust manifold riser spacer can be quite expensive, especially compared to aftermarket alternatives.

2. Availability: This product may not be readily available at all marine engine supply stores or online retailers, which can make it difficult to find and purchase.

3. Complex Installation: While the installation process is relatively simple, some users may find it more complicated than they anticipated. This could require additional time and resources.

Conclusion:

In conclusion, the Mercury 93321 exhaust manifold riser spacer is a valuable investment for marine engine enthusiasts who own a 7.4 454 V8 GM Marine Engine. While it may come with a higher price tag and potential installation challenges, the benefits of improved engine performance, durability, safety, and OEM quality make it a worthwhile investment. Additionally, the ease of installation and long-lasting performance make it a cost-effective solution in the long run.

Recommendation:

If you are in the market for an exhaust manifold riser spacer for your 7.4 454 V8 GM Marine Engine, we recommend considering the Mercury 93321 exhaust manifold riser spacer. While it may come with a higher price tag, the benefits it provides make it a worthwhile investment for marine engine enthusiasts who prioritize performance, durability, and safety. Make sure to check with your marine engine supplier or online retailer for availability and installation resources before making your purchase.

Details:

Mounting hardware is only included if it shown in the pictures. Look at pictures closely and ask any questions, I try to describe parts as best can. I will do my best to resolve the issue. Shelf 25-14-1-A.

Please look at all pictures and read entire before buying. What you see in the pictures is what get. Part was removed from a 2000 7.4 L 454 MerCruiser Marine engine. Thanks -Mike.

Condition: Good used condition.

part #: 93321 prices

  • $51.90-$251.50

specifications otsterndriv:

  • for models: Marine, 454, Mercruiser
  • for makes: Mercury
  • mpn: 93321
  • part type: Engine Exhaust Manifold Spacer
  • country/region of manufacture: United States

seller otsterndriv:

  • city: Huron, Ohio
  • # reviews: 105595
  • rating: 99.2%

offer otsterndriv:

  • availability: In Stock
  • options: Ship-to-home
  • quantity: 2
  • started: June 28, 2025
  • sold: 0

payments otsterndriv:

  • other
  • wallet: Paypal
  • credit card: Mastercard

general otsterndriv:

  • Boat Parts > Sterndrive Motors Components > Other
  • condition: Used

shipping otsterndriv:

  • transit: 4-9 Days
  • carrier: FedEx, USPS
  • service: FedEx Ground or FedEx Home Delivery, USPS Ground Advantage, USPS Priority Mail
  • class: Standard, Expedited
  • type: Calculated
  • cost: $23.39

returns otsterndriv:

  • paid by: Buyer
  • time: 30 Days
  • policy: Returns Accepted
for models: marine, 454, mercruiser, for makes: mercury, part type: engine exhaust manifold spacer, country/region of manufacture: united states,
category: boat parts > sterndrive components, sku: 3773201190300604,
Mercury 93321 Is Similar To:
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5 offers $51.90–$251.50 USD
  • New other (see details). Offer #1 priced at $251.50 + $34.50 shipping estimate = $286.00* total. More available.+$34.50 shipping
  • Used. Offer #2 priced at $92.07 + $25.90 shipping estimate = $117.97* total. I will do my best to resolve the issue. Shelf 25-14-1-A.+$25.90 shipping
  • New. Offer #3 priced at $51.90 + $0.00 shipping estimate = $51.90* total. . Features: 1.FREE SHIPPING
  • New other (see details). Offer #4 priced at $115.00 + $11.75 shipping estimate = $126.75* total. Complete as seen in photo.+$11.75 shipping
  • Used. Offer #5 priced at $93.00 + $25.90 shipping estimate = $118.90* total. Shelf 30-12-6-A.+$25.90 shipping

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