Mercury MerCruiser OEM U-Joint Cross & Bearing Kit 75832T1 | Alpha One, Bravo, R, MR, TR, TRS

Mercury / MerCruiser OEM U-Joint Cross & Bearing Kit — Part No. 75832T1

About This Kit

75832T1 is a genuine Mercury Marine / MerCruiser OEM heavy-duty driveshaft U-joint cross and bearing kit for selected MerCruiser sterndrives. It services the articulated U-joint connection between the engine-side and gear-side yokes, which allows the driveshaft to transmit power while accommodating drive trim and steering movement. The kit includes the U-joint cross, bearing caps, retaining rings, and grease fitting — everything needed to rebuild one U-joint position.

Because a complete MerCruiser driveshaft typically has two U-joint positions, most complete driveshaft rebuilds require two 75832T1 kits. Confirm the quantity in your specific driveshaft assembly diagram.

Compatible Applications

Confirm the sterndrive model and serial number before ordering. Documented applications include selected MerCruiser sterndrives:

• IA / IB / IC
• EZ
• MC-I
• R
• MR
• Alpha One
• Alpha One Gen II
• Bravo One, Two, Three — serial number 0M111207 and below only
• MC II
• TR
• TRS

⚠️ Bravo Serial Number Fitment Break

For Bravo sterndrives, the serial number is critical:

• Serial 0M111207 and below — use 75832T1 (this kit)
• Serial 0M111208 and above — use the later 865496A02-family cross and bearing assembly (different U-joint design)

Do not select the U-joint by appearance alone on Bravo applications. Confirm the drive serial number against the applicable Mercury driveshaft diagram before ordering.

When to Replace

• U-joint bearings feel rough, stiff, or notchy when the driveshaft is rotated by hand
• Excessive radial or rotational play is present in the U-joint
• Bearing caps show corrosion, rust, or evidence of water intrusion
• Grease is contaminated with rust or discoloration
• The drive produces vibration, knocking, or clicking from the U-joint area under power
• A torn or cracked U-joint bellows has allowed water into the U-joint cavity
• The driveshaft assembly is being rebuilt and existing joints show wear

Important: Water intrusion through a damaged U-joint bellows can rapidly damage the cross bearings, yokes, and gimbal bearing. Whenever a bellows failure is found, inspect all surrounding U-joint components before reassembly.

Installation Notes

• Remove the sterndrive per the applicable MerCruiser service procedure
• Inspect both U-joint cross positions — if one is worn, both should typically be replaced at the same time
• Inspect the engine-end yoke, center socket (393831), and gear-end yoke for wear, corrosion, or groove damage
• Inspect the U-joint bellows for cracks, tears, or signs of water entry — replace if there is any doubt
• Inspect the gimbal bearing while the drive is off the boat
• Install bearing caps carefully to prevent needle-bearing displacement during assembly
• Lubricate the U-joint per the applicable MerCruiser service procedure
• Verify the U-joints articulate smoothly through their full range before reinstalling the sterndrive

Kit Contents

• U-joint cross (trunnion)
• Bearing caps (4)
• Retaining rings / snap rings
• Grease fitting (zerk)

Superseded Part Numbers

75832T1 is the current Mercury part number consolidating the following earlier references:

• 75832T  |  75832  |  758321
• 75832A1  |  75832A2  |  75832A3
• 75832B  |  75832B1  |  75832B2  |  75832B3
• 58749  |  41431  |  36312

Technical FAQ

How many kits do I need for a complete driveshaft rebuild?
A complete MerCruiser driveshaft assembly typically has two U-joint cross positions, so a full rebuild requires two 75832T1 kits. Confirm the quantity in your specific driveshaft diagram.

What is the difference between 75832T and 75832T1?
75832T is an earlier Mercury part number that has been superseded by 75832T1. The current 75832T1 is the factory-approved replacement for all earlier 75832-family references.

Which U-joint fits Bravo drives after serial 0M111208?
Bravo sterndrives from serial 0M111208 and up use a different U-joint design requiring the 865496A02-family assembly. This is not interchangeable with 75832T1 — confirm your serial number before ordering.

What causes U-joint failure?
The most common cause is water intrusion through a cracked or torn U-joint bellows, which washes out the grease, allows rust to form on the needle bearings, and rapidly causes bearing failure. Regular bellows inspection is the best way to prevent premature U-joint wear.

Related Products

• Mercury / MerCruiser U-Joint Cross & Bearing 75832T — superseded by 75832T1; earlier production reference
• Mercury / MerCruiser U-Joint Cross & Bearing 805536A2 — related cross and bearing assembly
• Mercury / MerCruiser U-Joint Cross & Bearing 866136A01 — related cross and bearing assembly
• Mercury MerCruiser Double Yoke / Center Socket – U-Joint Assembly 393831 — center socket used in the same driveshaft assembly
• Mercury MerCruiser 39385A1 U-Joint Coupling-End Yoke Assembly — engine-end yoke component
• Sierra 6406 MerCruiser U-Joint Assembly — aftermarket U-joint reference

Parts Desk Insights

The most important thing with 75832T1 is the Bravo serial-number break. If the drive serial is close to 0M111207, confirm the number before ordering — drives from 0M111208 up use a different joint design that is not interchangeable. The other thing we see regularly is customers ordering one kit when the driveshaft has two U-joint positions. Pull the driveshaft diagram, count the cross positions, and order accordingly — it saves a second disassembly. And if the bellows was torn, inspect the yokes and gimbal bearing while everything is apart: a flooded U-joint rarely fails in isolation.