Gearbox Options
Beta Marine offer the following standard gearbox options and reduction ratios. Gearboxes have been selected to match the torque loading of each engine and will be correct for the majority of yachts, motor sailors or motor boats.
In heavier duty applications such as commercial fishing, harbour boats, boat hire etc. it may preferred to specify a heavier duty gearbox and / or different reduction ratios that are tailored to suit their use and environment. Please contact us, we would be pleased to listen to your bespoke needs and offer the best solution. Additionally if more appropriate, we offer a service to mount your existing gearbox on to a new Beta Marine engine.
Technodrive (Mechanical Gearbox) | Ratio | Beta 10 | Beta 14 | Beta 16 | Beta 20 | Beta 25 | Beta 30 | Beta 35 | Beta 38 | Beta 45T |
TMC 40 | 1.50:1 2.00:1 2.60:1 | Standard | Standard | Standard | Standard | Standard | Standard | - | - | - |
TMC 60 | 2.00:1 2.45:1 2.83:1 | - | Extra | Extra | Extra | Extra | Extra | Standard | Standard | Standard |
Oil Cooler for LH in ahead | - | Extra | Extra | Extra | Extra | Extra | Extra | Extra | Extra | |
TMC 60A | 2.00:1 2.45:1 | - | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
PRM Marine (Mechanical Gearbox) | Ratio | Beta 10 | Beta 14 | Beta 16 | Beta 20 | Beta 25 | Beta 30 | Beta 35 | Beta 38 | Beta 45T |
PRM 90 | 2.04:1 2.50:1 | Standard | Standard | Standard | Standard | Standard | Standard | - | - | - |
PRM 125 | 2.04:1 2.50:1 2.94:1 | - | - | - | - | - | Extra | Standard | Standard | - |
PRM Marine (Hydraulic Gearbox) | Ratio | Beta 10 | Beta 14 | Beta 16 | Beta 20 | Beta 25 | Beta 30 | Beta 35 | Beta 38 | Beta 45T |
PRM 150 | 2.09:1 2.82:1 | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
PRM 280 | 1.96:1 2.94:1 | - | - | - | - | - | Extra | Extra | Extra | Extra |
PRM 260C Inline | 1.96:1 2.94:1 | - | - | - | - | - | Extra | Extra | Extra | Extra |
ZF (V Drive Gearbox) | Ratio | Beta 10 | Beta 14 | Beta 16 | Beta 20 | Beta 25 | Beta 30 | Beta 35 | Beta 38 | Beta 45T |
ZF 15 MIV | 2.13:1 2.64:1 3.00:1 | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard | Standard |
Technodrive (Mechanical Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
TMC 60 | 2.00:1 2.45:1 | Standard | Standard | - | - | - | - | - | - | - |
TMC 60A | 2.00:1 2.45:1 | Standard | Standard | - | - | - | - | - | - | - |
Oil Cooler for LH in ahead | Extra | Extra | - | - | - | - | - | - | - | |
TMC 260 | 2.00:1 2.47:1 2.88:1 | Extra | Extra | Standard | - | - | - | - | - | - |
Technodrive (Hydraulic Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
TM 345 | 2.00:1 2.47:1 | Extra | Extra | Standard | Standard | Standard | Standard | - | - | - |
TM 345A | 2.00:1 2.47:1 | Extra | Extra | Extra | Extra | Extra | Extra | - | - | - |
Trolling Valve for TM 345 | Extra | Extra | Extra | Extra | Extra | Extra | - | - | - | |
TM 93 | 2.09:1 2.40:1 2.77:1 | - | - | - | Extra | Extra | Extra | Standard | Standard | Standard |
TM 93A | 2.09:1 2.40:1 | - | - | - | Extra | Extra | Extra | Extra | Extra | Extra |
Trolling Valve for TM 93 | - | - | - | Extra | Extra | Extra | Extra | Extra | Extra | |
PRM Marine (Hydraulic Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
PRM 150 | 2.09:1 2.83:1 | Standard | Standard | Standard | - | - | - | - | - | - |
PRM 280 | 1.96:1 2.94:1 | Extra | Extra | Extra | Standard | Standard | Standard | Standard | Standard | Standard |
PRM 260C Inline | 1.96:1 2.94:1 | Extra | Extra | Extra | Extra | Extra | Extra | Extra | Extra | Extra |
PRM 500 | 1.94:1 2.57:1 2.90:1 | - | - | Extra | Extra | Extra | Extra | Extra | Extra | Extra |
Hydraulic 'Soft Shift' | Extra | Extra | Extra | Extra | Extra | Extra | Extra | Extra | Extra | |
ZF (Mechanical Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
ZF 25M | 1.88:1 2.74:1 | Standard | Standard | Standard | - | - | - | - | - | - |
ZF (Hydraulic Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
ZF 25 | 1.97:1 2.80:1 | Standard | Standard | Standard | - | Standard | - | - | - | - |
ZF 25A | 1.92:1 2.29:1 2.71:1 | Standard | Standard | Standard | - | Standard | - | - | - | - |
ZF 45 | 2.20:1 2.50:1 3.00:1 | - | Extra | Extra | Extra | Extra | Standard | Standard | Standard | Standard |
ZF 45A | 2.03:1 2.43:1 | - | Extra | Extra | Extra | Extra | Standard | Standard | Standard | Standard |
ZF (V Drive Gearbox) | Ratio | Beta 43 | Beta 50 | Beta 60 | Beta 70T | Beta 75 | Beta 85T | Beta 90T | Beta 105T | Beta 115T |
ZF 15 MIV | 2.13:1 2.72:1 | Standard | Standard | - | - | - | - | - | - | - |
ZF 63 IV | 1.99:1 2.48:1 | Extra | Extra | Standard | Standard | Standard | Standard | Standard | Standard | Standard |