1. Boat Outboard Engines To Buy
  2. sku: 18480709591803632
  3. MERCURY 42646

MERCURY Driveshaft Inline 45-42646 69251 76036 115 140

fits make: Mercury. year: 1975–2020.

45-42646 Mercury 42646 69251 76036 1977 1978 - 1987 20 Inch Driveshaft 75 80 90 115 140 Hp Inline 4 And 6 Cyl

( Manufacturer Part Number: 42646 ), ( Part Type: Hp Driveshaft ), ( Country Of Manufacture: United States ), ( Donor Motor: Loose )

Review MERCURY Inch Driveshaft 115 140 Hp Inline And Cyl fits 1975–2020

Mercury Driveshaft (42646, 69251, 76036, 1977, 1978, 1987, 20, 75-140 HP Inline) - Ultimate Power Transmission Solution

Experience unparalleled performance and durability with the Mercury Driveshaft (42646, 69251, 76036, 1977, 1978, 1987, 20). This premium driveshaft is meticulously engineered to deliver seamless power transmission for a multitude of applications, catering to a wide range of horsepower ratings from 75 to 140.

The Mercury Driveshaft (42646) is designed to fit perfectly with the models produced between 1977 and 1978, ensuring a precise fit and optimal functionality. For Mercury models manufactured in 1987, the Mercury Driveshaft (69251) is the ideal choice, offering robustness and reliability.

For those seeking a versatile driveshaft compatible with multiple Mercury models, the Mercury Driveshaft (76036) is a fantastic option. It fits various models across different years, making it an excellent choice for a broad range of vehicles.

For the most demanding applications, the Mercury Driveshaft (20) is designed to handle high power outputs of up to 140 HP. This driveshaft is suitable for various models and years, making it an ideal choice for high-performance Mercury vehicles.

The Mercury Driveshaft series offers not only outstanding power transmission but also exceptional durability. With a variety of sizes available - 75, 80, 90, 115, and 140 HP inline - you can find the perfect fit for your specific Mercury model.

Regardless of your Mercury model's year or horsepower, the Mercury Driveshaft (42646, 69251, 76036, 20) offers a reliable, high-performance solution for your power transmission needs. Upgrade your Mercury vehicle with this premium driveshaft and experience the difference in power, durability, and performance.

Product: Mercury 42646 Inline Driveshaft (various horsepower and years)

Pros:

1. Versatility: This driveshaft is compatible with a range of horsepower (75-140 HP) and vehicle models from 1977 to 2007.

2. Durability: Mercury is a well-known brand that is trusted for its quality and durability.

3. Wide Range of Applications: The different lengths (90, 115, and 140 inches) make it suitable for various vehicles.

Cons:

1. Limited Speed Applications: This driveshaft may not be suitable for high-speed applications due to its design.

2. Potential for Noise: Some users have reported that the driveshaft can be noisy, which may require additional maintenance or parts.

3. Difficult Installation: Installation can be challenging, especially for those without mechanical experience.

Conclusion:

The Mercury 42646 Inline Driveshaft offers a good balance between versatility and durability. However, potential buyers should be aware of the limitations in speed applications and potential noise issues. If you have the necessary skills for installation or are willing to pay for professional installation, this driveshaft could be a solid choice. If you require a driveshaft for high-speed applications, it might be worth considering other options.

Recommendation:

If you're looking for a versatile and durable driveshaft for regular driving conditions, the Mercury 42646 Inline Driveshaft could meet your needs. However, it's crucial to carefully consider the specifications of your vehicle and your driving requirements before making a purchase. If you're unsure, consulting with a professional mechanic could help ensure you choose the right driveshaft for your vehicle.

Details:

Total length : 30-1/2. Bearing surfaces are in good condition with no pitting. Layaway Plan. The item you are looking at is guaranteed to be described, pictured, and cross-referenced correctly.

Johnson and Eventide. Spline count: 8/17. Bargain Bin parts. However, please be absolutely sure this is the correct one for your motor prior to purchasing.

Altman, IL 62411. length from Key way to top of the sha ft: 21-1/2. Bearings spin freely. Cowling Covers.

part #: 42646 prices

  • $92.00-$435.42

specifications ouboaen:

  • for makes: Mercury
  • for years: 1975-2020
  • mpn: 42646
  • part type: Hp Driveshaft
  • country of manufacture: United States
  • donor motor: Loose

offer ouboaen:

  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • availability: In Stock
  • started: September 4, 2025

general ouboaen:

  • Boat Parts > Outboard Engines Components > Other
  • condition: Used

shipping ouboaen:

  • service: Standard
  • class: Standard
  • cost: $0.00
  • type: Fixed
  • transit: 4-7 Days

payments ouboaen:

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

returns ouboaen:

  • policy: No Returns

seller ouboaen:

  • # reviews: 32453
  • rating: 99.7%
  • city: Altamont, Illinois
for makes: mercury, for years: 1975-2020, part type: hp driveshaft, country of manufacture: united states, donor motor: loose,
category: boat parts > outboard engines components, sku: 18480709591803632,
Mercury 42646 Is Similar To:
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5 offers $92.00–$435.42 USD
  • Used. Offer #1 priced at $160.00 + $32.85 shipping estimate = $192.85* total. The bearing is worn and should be replaced. This driveshaft is in good usable condition.+$32.85 shipping
  • Used. Offer #2 priced at $92.00 + $0.00 shipping estimate = $92.00* total. PN , ,45- ,45- .FREE SHIPPING
  • New. Offer #3 priced at $435.42 + $10.29 shipping estimate = $445.71* total. +$10.29 shipping
  • Used. Offer #4 priced at $100.21 + $26.67 shipping estimate = $126.88* total. +$26.67 shipping
  • New. Offer #5 priced at $290.95 + $18.00 shipping estimate = $308.95* total. Drive Dampers & Plates. Fits Early Inline 4 Cylinder 75 HP and 6 Cylinder 90 and 115 motor.+$18.00 shipping

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