Mercruiser Parts Warehouse & Stern Drive Drawings

MerCruiser tapered roller bearings (upper gearcase part)
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Take the boat to OMC outdrives Johnson outboard
GLM Marine Aftermarket tapered bearings for the Mercruiser upper gearcase
  • Tapered roller bearings  
  • GLM Marine aftermarket timkin tapered bearings for the upper gearcase 
  • #21510 #21511 Tapered roller bearings are used for the drive shaft housing (upper cover)
  • #21540 #21550 & #21560 Tapered roller bearings are used for the driven gear
  • #21520 Tapered bearing assembly set is used for the drive gear and includes all ratios except 1.32

21510.jpg
#21510 Upper cover tapered bearing

# 21510 Tapered bearing 
(1-15/16 O.D.)
OEM# 31-61100A1
    $16.98
21511 Mercruiser bearing 14.95.jpg
# 21511 MerCruiser upper tapered bearing

#21511 Tapered bearing
(1-25/32 O.D.)
OEM# 31-32575T1
    $9.98
21560 Bearing.jpg
21560 MerCruiser tapered bearing (1.50 ratio)

# 21560 Tapered bearing 
(1.50 ratio)
OEM# 31-32573A1
    $29.98
21540 Mercruiser Bearing 21.95.jpg
#21540 MerCruiser bearing (1.65, 1.84, 1.98 ratio)

# 21540 Tapered bearing
(1.65, 1.84, 1.98 ratio)
OEM# 31-35990A1
    $26.98
21550 Bearing.jpg
21550 Tapered bearing (1.32 ratio)

# 21550 Tapered bearing
(1.32 ratio)
OEM# 31-66818A1
    $53.98
21520 mercruiser bearing set 89.95.jpg
21520 MerCruiser bearing set assembly

# 21520 Drive gear bearing assembly
(Includes all bearing ratios except 1.32)
OEM# 31-35988A12
    $100.98

Please see upper gearcase drawing layout part # 5a, 5b, 9a, 9b, 9c, 24a

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