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Sierra 18-3752 Drive Shaft Housing Retaining Nut for MerCruiser Stern Drive

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3752
18 reviews
Sale Price

$31.63

In Stock (5)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3752 is a replacement upper drive shaft housing retaining nut designed for MerCruiser stern drives. This retaining nut secures the upper housing assembly around the u-joint input shaft, maintaining proper drivetrain alignment and helping prevent vibration or fluid leakage under load.

Key Features:

  • Engineered to meet or exceed OEM specifications
  • Constructed from durable metal suitable for demanding marine environments
  • Direct OEM replacement — installs without modification
  • Sold individually (single unit)
  • Special removal tool available separately: Sierra 18-9803 spanner wrench

OEM & Cross-Reference Part Numbers:

  • MerCruiser: 35992, 66071, 8168111, 816811-1, 8168112, 816811-2, 8M0169040
  • GLM: 28350
  • Mallory: 9-72154

Sierra International is a trusted manufacturer of premium-quality aftermarket marine replacement parts, offering over 6,000 components engineered to meet or exceed OEM standards for use in saltwater and freshwater applications.

Very good and prompt.

Good deals

Easy experience with this website, I would definitely recommend!

Ordering was easy ... Now if the 2 day shipping is true it will b awesome

Quick user interface (easy click-through to purchase point).

Don't change a thing, its easy to navigate and the prices are great as well...

Got what I was looking for. Excellent.

fast , best price online, thanks

We ordered the wrong mud flaps and you all have been great in helping us. Only one problem, both orders came with the boxes either open or holes in them! Couldn't believe the shape the bosses were in, thankfully the product was ok.

first time ive order from here and my experience was great! shipping was crazy fast. and they had the best price shipped on the 2jz arp head stud set i could find. also how on their site they actually list if they have the part in stock and how many which is very helpful. ive payed for parts to find out the vender didn't even have them available. which lead to more down time. and we all hate down time :)

sweet deal

Good shopping experience online, cheapest price available online for the product I bought. Top quality automotive products.

Easy to use website, had the best price for the item I was looking for, and quick shipping! What else can you ask for?

thanks for the quick service

First time ordering. so far so good. thank you :)

Best price I could find anywhere. Almost 10% less than my typical sources and the item shipped in less than 24 hrs.<br>

Smooth easy process

I receive exactly what I ordered on time with no problems… got the best price and service. What else do you need to know! Shop Autoplicity…

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