1. Boat Outboard Engines To Buy
  2. sku: 23100704212882861
  3. SEA DOO 290831612

SEA-DOO 290831612 Water Manifold Gasket Pwc

fits model: Sp, Gt. make: Sea-doo. year: 1989–1990.

290831612 Sea-doo 1989-1990 Sp Gt Water Manifold Gasket Pwc

( Manufacturer Part Number: 290831612 ), ( Part Type: Gasket Manifold ), ( Country Of Origin: United States ), ( Manufacturer Warranty: Unspecified Length ), ( Storage Location: X4 Tyler-n Bin 95 )

Review SEA DOO Water Manifold Gasket Pwc fits SP GT 1989–1990

The **Sea-Doo 290831612 1989-1990 SP GT Water Manifold Gasket** is a meticulously engineered replacement part designed specifically for the iconic **Sea-Doo SP GT** personal watercraft models produced between **1989 and 1990**. This gasket serves as a critical sealing component within the water intake manifold system, ensuring optimal performance, reliability, and longevity of the engine by maintaining proper hydraulic pressure and preventing leaks. Crafted from high-quality **rubber and reinforced elastomeric materials**, this gasket is engineered to withstand the demanding conditions of marine environments, including exposure to saltwater corrosion, high-pressure water flow, and fluctuating temperatures. Its precise fitment is tailored to the unique contours of the **1989-1990 SP GT s** water manifold assembly, allowing for a snug, leak-free seal that minimizes the risk of water intrusion into the engine compartment. Beyond its primary function of sealing, this gasket also plays a role in enhancing the overall efficiency of the waterjet propulsion system, contributing to smoother operation and reduced wear on internal components. Whether you're restoring a classic Sea-Doo or performing routine maintenance, this gasket is an essential upgrade to preserve the integrity of your watercraft s engine and ensure peak performance during every ride. Its compatibility with the original **SP GT s** design makes it a straightforward and cost-effective solution for owners seeking to maintain their vessel s performance and reliability.

### Pros and Cons of Buying a Sea-Doo 290831612 (1989-1990 SP GT Water Manifold Gasket for PWC)

#### **Pros:**

1. **Compatibility** This gasket is specifically designed for the Sea-Doo SP GT models from 1989 and 1990, ensuring a proper fit and reducing the risk of leaks or improper sealing.

2. **Cost-Effective Repair** Replacing a water manifold gasket is generally a straightforward and affordable repair compared to other engine-related issues. The part itself is relatively inexpensive, and labor costs are minimal if you perform the job yourself.

3. **Prevents Engine Damage** A failing water manifold gasket can lead to coolant loss, overheating, or even engine failure if left unaddressed. Replacing it early prevents costly long-term damage.

4. **Easy to Install** The gasket is designed for relatively easy access in most Sea-Doo models, making it a manageable DIY project for those with basic mechanical skills.

5. **Authentic OEM Part** If purchasing from a reputable dealer, this is an original equipment manufacturer (OEM) part, ensuring quality and compatibility with the original design specifications.

#### **Cons:**

1. **Age of the Part** Since this gasket is for a model from the late 1980s, finding a genuine OEM part may be difficult, especially if the manufacturer no longer produces it. You may need to source it from a specialty parts dealer, a used parts market, or a collector.

2. **Potential for Counterfeit or Low-Quality Replacements** If buying from an untrusted seller, there is a risk of receiving a counterfeit or substandard gasket that could fail prematurely or cause leaks.

3. **Limited Availability of Guides or Tutorials** Older Sea-Doo models may not have as many detailed repair guides or videos available online compared to newer models, which could make the installation process slightly more challenging.

4. **Compatibility Concerns with Aftermarket Parts** If you ve previously modified your Sea-Doo or used aftermarket components, there s a small chance the gasket may not align perfectly with non-OEM parts, requiring additional adjustments.

5. **Risk of Additional Wear** If the gasket failure is due to underlying issues (e.g., warped manifold, worn seals, or coolant system problems), replacing just the gasket may not fully resolve the issue, and you might need further repairs in the near future.

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### **Conclusion:**

The Sea-Doo 290831612 water manifold gasket is a critical but relatively simple repair for maintaining the health of your 1989-1990 SP GT. The pros heavily outweigh the cons if you can source an authentic part and perform the replacement correctly. The main drawbacks limited availability and potential counterfeit risks can be mitigated by purchasing from a trusted dealer, checking the part s authenticity, and verifying its compatibility with your specific model.

If you re comfortable with basic mechanical work and can confirm the part s legitimacy, replacing the gasket is a wise investment to prevent engine damage and extend the life of your PWC. However, if you re unsure about the part s authenticity or the installation process, consulting a professional mechanic may be the safer option, especially if you value your time or the longevity of your watercraft.

### **Recommendation:**

1. **Verify the Part s Authenticity** Purchase from a reputable dealer, Sea-Doo authorized service center, or a trusted online marketplace (e.g., eBay with seller ratings, specialized PWC forums, or parts suppliers like Sea-Doo Outboard Parts).

2. **Check for Alternatives** If the OEM part is unavailable, consider high-quality aftermarket gaskets from brands like **Gasket King, Flex Seal, or T-Spec**, which are designed for marine applications and may offer better availability.

3. **Prepare for Installation** Gather the necessary tools (socket set, torque wrench, gasket scraper, sealant if required), and follow a step-by-step guide tailored to your model. If possible, watch a video tutorial for the 1989-1990 SP GT specifically.

4. **Inspect the Manifold and Coolant System** While replacing the gasket, take the opportunity to check for other signs of wear (e.g., cracked hoses, corroded fittings, or coolant leaks) and address them proactively.

5. **Consider Professional Help if Needed** If you re uncomfortable with the repair or unsure about the part s fit, a mechanic familiar with Sea-Doo models can ensure the job is done correctly.

**Final Verdict:** This gasket is a sound purchase for preventing engine damage, provided you source it responsibly and perform the replacement carefully. The repair is well worth the effort for most owners of these older models.

Details:

Residential delivery with lift gate is available. Spotlight: A Day Inside . Genuine Sea-Doo water manifold gasket for optimal Sealing and cooling system performance in vintage PWC model's. One-Of-A-Kind When Its Gone, Gone 1989 1990 Sea-Doo SP Water Manifold Gasket PWC 290831612:: New Old Stock: Packaging May Vary, Listing is for a Quantity of 1 Unless Specified in the Title Fits: Fits 1989.

FREE shipping on every order to the lower 48 states. Do you combine shipping?, Yes. Please verify the part number and compatible model's before purchasing. Do you accept offers?, Some listings offers.

Larger items from $46.99. We started with a single motorcycle dismantled in home garage.: Are these genuine OEM parts?, Yes. Look for the Make Offer button on listing page.

Item must be in original, uninstalled condition with no modifications. Every part is one-of-a-kind. 4.8 out of 5 stars across 322 reviews.

We review all reasonable offers promptly.

part #: 290831612 prices

  • $29.86-$59.72

specifications ouboaen:

  • for models: Sp, Gt
  • for makes: Sea-doo
  • for years: 1989-1990
  • mpn: 290831612
  • part type: Gasket Manifold
  • country of origin: United States
  • manufacturer warranty: Unspecified Length
  • storage location: X4 Tyler-n Bin 95

offer ouboaen:

  • availability: In Stock
  • sold: 0
  • best offers: True
  • options: Ship-to-home
  • quantity: 1
  • started: April 5, 2026

general ouboaen:

  • Boat Parts > Outboard Engines Components > Cooling Systems
  • condition: New other see details

shipping ouboaen:

  • type: Fixed
  • service: USPS Ground Advantage, USPS Priority Mail, FedEx 2Day, Overnight
  • transit: 4-9 Days
  • cost: $0.00
  • carrier: USPS, FedEx
  • class: Standard, Expedited, One-day

returns ouboaen:

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

payments ouboaen:

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

seller ouboaen:

  • rating: 99.4%
  • # reviews: 220255
  • city: Odessa, Florida
for models: sp, gt, for makes: sea-doo, for years: 1989-1990, part type: gasket manifold, country of origin: united states, manufacturer warranty: unspecified length, storage location: x4 tyler-n bin 95,
category: boat parts > outboard engines components > cooling systems, sku: 23100704212882861,
Sea-doo 290831612 Is Similar To:
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5 offers $29.86–$59.72 USD
  • New. Offer #1 priced at $29.86 + $0.00 shipping estimate = $29.86* total. Newly Listed. SP 580 (1989-1990).FREE SHIPPING
  • New. Offer #2 priced at $59.72 + $0.00 shipping estimate = $59.72* total. SEA-DOO: .FREE SHIPPING
  • New. Offer #3 priced at $29.86 + $0.00 shipping estimate = $29.86* total. Warranty does not cover failure due to accident, abuse, neglect or as the result of normal wear and tear. OEM PART NUMBERS All parts sold are new.FREE SHIPPING
  • New. Offer #4 priced at $29.86 + $0.00 shipping estimate = $29.86* total. FREE SHIPPING
  • New. Offer #5 priced at $59.72 + $0.00 shipping estimate = $59.72* total. FREE SHIPPING

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