1. Exhaust Systems Inboard Engines Components For Sale
  2. sku: 7819563944161633
  3. MERCURY 817518

MERCURY 817518 Outboard Idle Exhaust Hose B2A 115HP

fits model: Efi. make: Mercury.

859251 Mercury 817518 B2a Outboard 115hp Efi 4 Stroke Idle Exhaust Hose Assembly

( Manufacturer Part Number: 817518 ), ( Part Type: Exhaust Hose )

Review MERCURY B2a Outboard 115hp Stroke Idle Exhaust Hose Assembly fits EFI

The Mercury 817518 B2A Outboard 115HP EFI Idle Exhaust Hose is an essential component of the engine exhaust system for Mercury outboard engines producing 115 horsepower. This hose is specifically designed for use with Mercury's Electronic Fuel Injection (EFI) systems, ensuring a seamless integration with the engine's advanced technology.

Measuring approximately 36 inches in length, this hose is crafted from high-quality materials to deliver superior durability and performance. The hose itself is made from a flexible, reinforced rubber compound that can withstand the extreme temperatures and pressures generated by the engine. The inner core of the hose is reinforced with a braided steel mesh, providing additional strength and preventing collapse under high-pressure conditions.

The Mercury 817518 B2A Outboard 115HP EFI Idle Exhaust Hose features a unique design that includes an integrated idle bypass valve. This valve allows for smoother engine operation during idle conditions by recirculating exhaust gases back into the engine intake. This results in improved engine efficiency, reduced emissions, and a quieter operating experience.

The hose also includes a high-temperature, heat-resistant clamp for secure installation and a stainless steel hose end for added durability. The clamp is designed to provide a tight, leak-free seal while withstanding the rigors of marine use, ensuring that the exhaust gases are safely routed away from the engine compartment.

Overall, the Mercury 817518 B2A Outboard 115HP EFI Idle Exhaust Hose is an essential upgrade for any Mercury outboard engine producing 115 horsepower. Its advanced design, high-quality materials, and integrated idle bypass valve make it a must-have for boaters seeking improved engine performance, efficiency, and quieter operation.

Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose: A Detailed Analysis

The Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose is a crucial component of your outboard engine's exhaust system. This part ensures proper engine function by facilitating the efficient transfer of exhaust gases from the engine to the external environment. Here's a comprehensive analysis of the benefits and potential drawbacks of investing in this particular exhaust hose.

Pros:

1. Enhanced Performance: The Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose is designed specifically for high-performance engines. It can help improve the overall efficiency of your engine by facilitating the swift transfer of exhaust gases.

2. Durability: This exhaust hose is made of high-quality materials, including heat-resistant silicone, to ensure long-lasting performance. It can withstand the extreme temperatures and pressures generated by your engine, ensuring that it remains in good condition for an extended period.

3. Easy Installation: The Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose is relatively easy to install. It comes with clear instructions and can be attached to your engine using the provided clamps. This simplicity can save you time and money on installation costs.

4. OEM Quality: By purchasing an OEM (Original Equipment Manufacturer) part like the Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose, you can ensure that you're getting a part that is specifically designed for your engine model. This can help maintain the manufacturer's warranty and provide peace of mind knowing that the part is a perfect fit.

Cons:

1. Cost: The Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose can be more expensive than aftermarket alternatives. However, the potential benefits in terms of performance, durability, and OEM fitment may outweigh the additional cost for some consumers.

2. Availability: Depending on your location and the availability of Mercury dealerships, it might be challenging to find and purchase this particular exhaust hose. You may need to order it online or travel to a nearby dealership to purchase it in person.

Conclusion:

The Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose is an essential component for maintaining the optimal performance of your high-performance outboard engine. Its durability, ease of installation, and OEM quality make it a worthwhile investment for boat owners who demand the best from their engines.

Recommendation:

If you're in the market for a new exhaust hose for your Mercury 115hp outboard engine and are looking for a high-quality, reliable, and durable option, the Mercury 817518 B2A Outboard 115hp EFI Idle Exhaust Hose is an excellent choice. While it may come with a higher price tag than some aftermarket alternatives, the benefits it offers can make it a worthwhile investment for boat owners who demand the best from their engines.

Details:

part #: 817518 prices

  • $5.00-$24.95

specifications exhaussyste:

  • for models: Efi
  • for makes: Mercury
  • mpn: 817518
  • part type: Exhaust Hose

seller exhaussyste:

  • city: Belgium, Wisconsin
  • rating: 99.4%
  • # reviews: 12812

offer exhaussyste:

  • sold: 0
  • quantity: 2
  • availability: In Stock
  • options: Ship-to-home
  • started: September 4, 2025

returns exhaussyste:

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

payments exhaussyste:

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

general exhaussyste:

  • condition: Used
  • Boat Parts > Inboard Engines Components > Exhaust Systems

shipping exhaussyste:

  • service: Economy
  • class: Economy
  • transit: 4-7 Days
  • cost: $5.00
  • type: Fixed
for models: efi, for makes: mercury, part type: exhaust hose,
category: boat parts > inboard engines components > exhaust systems, sku: 7819563944161633,
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5 offers $5.00–$24.95 USD
  • Used. Offer #1 priced at $24.95 + $7.00 shipping estimate = $31.95* total. +$7.00 shipping
  • New. Offer #2 priced at $16.57 + $0.00 shipping estimate = $16.57* total. Type: Steering Gear Housing Seal Manufacturer Part Number: 9835.FREE SHIPPING
  • New other (see details). Offer #3 priced at $5.00 + $4.99 shipping estimate = $9.99* total. BoxA7 Bin4 This is a set of two new old stock (NOS) Mercury QuickSilver OEM 22- tee fittings.+$4.99 shipping
  • New. Offer #4 priced at $10.15 + $5.97 shipping estimate = $16.12* total. With the manufacturer part number 22- , these fittings come with a no warranty guarantee, ensuring the quality and durability of the product The NOS Mercury QuickSilver OEM 22- Tee Fittings are genuine parts manufactured by Mercury specifically for their outboard engines.+$5.97 shipping
  • New. Offer #5 priced at $8.71 + $0.00 shipping estimate = $8.71* total. FREE SHIPPING

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