MerCruiser Alpha One R MR U-Joint Assembly Yoke 59829A1 Upper Unit 814819A2

Item Details & Compatibility

• This is a complete Yoke Assembly for alpha one MR / Alpha One Gen I Sterndrives (1983-1990)
• Also this would be compatible with 1971-1982 V8 305 / 350 Stern Drives only because of  the measurement of the yoke.
• 1970-1982 MC-1 & R Drives on Inline engines used a shorter yoke which is not the one available here.
• The same yoke / U-Joint assembly was used in the years described above regardless of engine / gear ratio of outdrive.
  • I.E. 120hp 2.5L / 140hp 3.0L / 165hp 4.1L, 470 / 165hp 3.7L 4cyl / 4.3L V6 / 305 5.0L V8 / 350 5.0L V8 / also the very rare instances of alpha ones paired with 454's
    • However take special note of the yoke length as described below.
• The Yoke on this measures 9-9/16”
• Make sure that yours measures the same as if you have an inline (4 or 6 cyl engine pre-1983) it is likely that your yoke is the short model that measures 8-1/8” These are not interchangeable.
• One other thing to take note is that MerCruiser added the extra o-ring around the middle of the yoke at some point in the late 80’s, however this shaft is still compatible in all of those systems as that o-ring was not imperative of function.

Notable & Relevant Part Number(s)

• 814819A2 814819A3 Universal Joint Assembly
• 59829A1 - Universal Joint Assembly V8 (1971-1982)
• 59830A1 59830A7 - Yoke Assembly 9-9/16” (2-Groove Style
• 39383 - Socket
• 46020 - Yoke

Condition Notes

• Overall Good Condition
• Freshwater Used Parts

Additional Details

• If you are unsure if this will work for you, please check with your motor's parts list or manual or just send me a message and I can quickly look this up for you or at least point you in the right direction. 
• Please Inspect Pictures closely to ensure satisfaction.
• Please Contact Me if you have additional questions.
• Purchase with confidence!