Inboard Shafts

General Propeller Company is one of the leading boat shaft manufacturers in the US. We are an OEM supplier to numerous boat builders, including Sea Ray, Regal, Hunter, Correct Craft - Nautique, Bertram, Wellcraft, Catalina, Sea Force IX, ………...

As a major boat shafting distributor, we will have the material you need in stock from ¾” to 4” diameter.  All machining is performed “in house” on C-N-C turning centers to exacting tolerances and every shaft is inspected for straightness, diameter and out-of-round tolerances per ABYC standards. Shafts provided with couplings are fully assembled and checked for coupling fit and run-out.

 Inboard Shaft Quote Form  - Please fill out for current pricing

Fast Delivery!

Most shafts ready to ship in 24 - 48 hours

  

Display: List Grid
Sort By:
Show:
Precision Inboard Boat Shaft

Precision Inboard Boat Shaft

Precision Inboard Boat Shaft - CNC machined  AQ17, AQ19, AQ22 and Duplex 2205 Made to order please submit form to receive a quote  Inboard Shaft Quote Form  .....
$0.00
Coupling Bolt Set BOLTSET375

Coupling Bolt Set BOLTSET375

Bolt Size: 3/8" - 24 x 1-1/2" | Package Quantity: 4.....
$5.40 $3.78
Coupling Pinch Bolt Set PINCH312

Coupling Pinch Bolt Set PINCH312

Bolt Size: 5/16" - 24 x 1-3/4" .....
$5.11 $3.58
Nylon Bore Reducer NB01

Nylon Bore Reducer NB01

Nylon Bore Reducer NB01 7/8" to 3/4".....
$25.00 $22.50
Propeller Shaft Nut Kit PSK750

Propeller Shaft Nut Kit PSK750

Shaft Size: 0.75" | Full & Jam Nut Thread Size: 1/2" - 13 | Keystock 3/16" | Cotter Pin: 1/8" .....
$15.50 $10.85
R&D Split Coupling 202-153

R&D Split Coupling 202-153

4" Borg Warner, PRM, Hurth  Split Hub Coupling - Flange(a) -  4", Bolt Circle(b) - 3.25", # of Holes(c) - 4, Bolt Size(d) - 3/8", Pilot Dia(e) - 2.50" Male, Length(f) - 3.19", Hub Dia.(g) - 3.38" Max Bore 1.50" or 40 mm .....
$215.00 $172.00
R&D Split Coupling 202-254

R&D Split Coupling 202-254

4" Yanmar Split Hub Coupling - Flange(a) -  4", Bolt Circle(b) - 3.07", # of Holes(c) - 4, Bolt Size(d) - 10mm, Pilot Dia(e) - 1.97" Male, Length(f) - 3.19", Hub Dia.(g) - 3.38" Max Bore 1.50" or 40 mm .....
$215.00 $172.00
R&D Split Coupling 202-255

R&D Split Coupling 202-255

4" Volvo Split Hub Coupling - Flange(a) -  4", Bolt Circle(b) - 3.15", # of Holes(c) - 4, Bolt Size(d) - 10mm, Pilot Dia(e) - 2.36" Female, Length(f) - 3.28", Hub Dia.(g) - 3.38" Max Bore 1.50" or 40 mm .....
$215.00 $172.00
Reverse Taper Coupling 50TC005125

Reverse Taper Coupling 50TC005125

Reverse Taper Coupling - Flange 5" | Bore 1.25" | M-Pilot Dia 2.50" | 4 Bolt - .4375" Dia | Bolt Cir 4.25" | Overall 2.75" .....
$96.48 $67.54
Solid Coupling 50MC350075

Solid Coupling 50MC350075

Solid Hub Coupling - Flange 3.410" | Bore 0.75" | F-Pilot Dia 1.876" | 3 Bolt - .375" Dia | Bolt Cir 2.75" | Overall 2.437" .....
$97.18 $68.03
Split Coupling 50400A1000

Split Coupling 50400A1000

Split Hub Coupling - Flange 4" | Bore 1.00" | M-Pilot Dia 2" | 4 Bolt - .375" Dia | Bolt Cir 3.25" | Overall 3.4375" .....
$120.39 $84.27
Taper Coupling 50TC475138

Taper Coupling 50TC475138

Taper Coupling - Flange 4.75" | Bore 1.375" | F-Pilot Dia 2.50" | 6 Bolt - .4375" Dia | Bolt Cir 3.875" | Overall 4.1875" .....
$202.81 $141.97
Coupling Pinch Bolt Set PINCH375

Coupling Pinch Bolt Set PINCH375

Bolt Size: 3/8" - 24 x 2-1/2" .....
$1.15 $0.81
Nylon Bore Reducer NB02

Nylon Bore Reducer NB02

Nylon Bore Reducer NB02 1" to 3/4".....
$25.00 $22.50
Propeller Shaft Nut Kit PSK875

Propeller Shaft Nut Kit PSK875

Shaft Size: 0.875" | Full & Jam Nut Thread Size: 5/8" - 11 | Keystock 3/16" | Cotter Pin: 1/8" .....
$15.50 $10.85