OMC Parts / OMC Cobra Stern Drive Tech Drawings

OMC Cobra new upper gearcase assemblies
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New upper gear housing assembly for the OMC Cobra
  • Brand new Cobra upper gear housing assembly
  • For rebuilt upper units, see our complete rebuilt upper gear housing page
  • For years 1986 - 1989 and 1990 (4 cylinder 2.3L), 1990 - 1993 (4 cylinder 3.0L), (4.3L V6) and (5.0L - 7.5L V8)
  • Complete chart with engine compatibility, gear ratios, and OEM numbers
  • Includes brand new water pump
  • Ratios: 21:16, 21:18, 21:17, and 21:19
  • Please note: U-Joint and Yoke upper gearcase components are NOT included in the complete upper assembly
  • Complete Cobra lower gear housing assembly also availalbe
  • Warranty (1 year parts and labour) see GLM limited warranty and service procedure for more information
*Note U-Joint and Yoke not included
W-Cobra-upper-gearcase-1.jpg
Complete Cobra upper gear housing assembly with water pump
W Cobra upper gearcase 3.jpg
Cobra upper gearcase
$360 core charge is refunded off purchase price after we receive your core trade in.

Engine

# of teeth on original gears

Core unit trade in required or a deposit of $360.00 if not sending old unit in
# 29920 All four cylinder 1986 - 1989 1990 (2.3L) OEM 986382
21/18

# 29920 Complete upper gear housing assembly with water pump $1695.98 *after trade in   

Four cylinder 1990 - 1993 (3.0L) see used cobra or phone about rebuilt 21/21 stock we may have
21/21

# U987064 Complete 21/21 used rebuilt upper gear housing assembly with water pump $1499.98

# 29940 (4.3L ) / 262 V6 OEM 986380
21/19

# 29940 Complete upper gear housing assembly with water pump OEM # 986380 gear ratio 21:19

$1695.98 *after trade in  

# 29920 (5.0L) / 302 Ford V8 OEM # 986382
21/18

# 29920 Complete upper gear housing assembly with water pump

$1695.98 *after trade in   

# 29930 (5.0L) / 305 Chevy V8 OEM # 986844
21/17

# 29930 Complete upper gear housing assembly with water pump

$1695.98 *after trade in

# 29930  (5.8L) / 351 Ford V8 EFI OEM # 986844
21/17

# 29930 Complete upper gear housing assembly with water pump

$1695.98 *after trade in  

# 29910  (5.7L) / 350 Chevy V8 OEM # 986381
21/16

# 29910 Complete upper gear housing assembly with water pump 

$1695.98 *after trade in

# 29910 (5.8L) / 351 Ford V8 OEM 986381
21/16

# 29910 Complete upper gear housing assembly with water pump 

$1695.98 *after trade in

# 29930 (7.5L) / 460 Ford V8 1987 - 1999 OEM # 986844
21/17

# 29930 Complete upper gear housing assembly with water pump

$1695.98 *after trade in  

Click here for OMC Cobra complete lower unit
28820 cobra lower .jpg
# 28820 cobra lower unit with water pump

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