| Drive Shaft Diameter | Size Variations (ID × OD × Length) | Beneteau OEM Part # | Aftermarket Part Numbers | Compatible Beneteau Models (Shaft Drive) |
| 22 mm | • Option A: 22 mm × 29 mm × 75 mm (Composite) • Option B: 22 mm × 36 mm × 80 mm (Brass Shell) | • 059319 • 037322 | • Exalto: MRSFF22x29x75 • DriveForce / ASAP: 809914 / 809915 • Vetus: SET2229 • Orbitrade: 1-A-4901022 | • First 26 • First 285 • Oceanis 281 • Oceanis 300 • Oceanis 311 (early shaft models) |
| 25 mm | • Option A: 25 mm × 36 mm × 100 mm (Standard Composite) • Option B: 25 mm × 40 mm × 120 mm (Heavy Duty) • Option C: 25 mm × 36 mm × 75 mm (Short Strut) | • 059320 • 037325 | • Duramax Metric: 870254100 • DriveForce / ASAP: 809916 / 809917 • Exalto: MRSFF25x36x100 • Vetus: SET2536 • Orbitrade: 1-A-4901025 | • First 30, 310, 31.7, 32, 35, 38 • First 35s5, 38s5 • Oceanis 321, 331, 351, 361 |
| 1.00 in (25.4 mm) | • Option A: 1.00″ × 1.25″ × 4.00″ (Thin Wall) • Option B: 1.00″ × 1.50″ × 4.00″ (Standard Wall) | N/A (US Builds / Conversions) | • Duramax / Johnson Code: BACK (1.5″ OD) • Duramax / Johnson Code: BASS (1.25″ OD) • Vetus: 809008 • Exalto: IRSFF1x1.5×4 | • US-built (Marion, SC) hulls: Oceanis 321, 351, 361 (Imperial shaft options) |
| 30 mm | • Option A: 30 mm × 40 mm × 120 mm (Phenolic Sleeve) • Option B: 30 mm × 45 mm × 120 mm (Brass Shell) • Option C: 30 mm × 40 mm × 100 mm (Short Fitment) | • 037330 | • DriveForce / ASAP: 809920 • Orbitrade: 1-A-4901030 • Exalto: MRSFF30x40x120 • Vetus: SET3040 • Duramax Metric: 870304120 | • Oceanis 381, 393, 400, 411, 423 • Oceanis 440, 461, 473 • First 40.7, 42, 45f5, 47.7 |
| 35 mm | • Option A: 35 mm × 54 mm × 140 mm (Phenolic Sleeve) • Option B: 35 mm × 50 mm × 140 mm (Brass Shell) • Option C: 35 mm × 54 mm × 160 mm (Long Sleeve) | • 037335 | • DriveForce / ASAP: 809924 • Duramax Metric: 870354100 • Exalto: MRSFF35x54x140 • Vetus: SET3550 • Eliche Radice: 3550 | • Oceanis 50 (shaft version) • Oceanis 510, 523, 54 • Oceanis Clipper 500 • First 50, First 53 |
| 40 mm | • Option A: 40 mm × 54 mm × 140 mm (Phenolic Sleeve) • Option B: 40 mm × 55 mm × 160 mm (Heavy Brass) | • 037340 | • DriveForce / ASAP: 809928 • Duramax Metric: 870404100 • Exalto: MRSFF40x54x140 • Vetus: SET4055 | • Oceanis 57, 60 • Sense 55, 57 (shaft versions) • Flagship / Custom Hulls |
Important Sizing Guidelines
Measuring Before Ordering:
Even within the same model year, Beneteau occasionally switched between thin-wall phenolic cutlass sleeves and brass-shelled bearings. Always confirm the outer diameter (OD) and sleeve length using calipers before purchasing replacement parts.
Key Notes & Fitment Details
1. Non-Metallic Composite Sleeves vs. Brass Shells Beneteau heavily utilizes non-metallic (nitrile rubber/phenolic composite) bearing sleeves rather than traditional brass-shelled cutlass bearings. These bearings set directly into the stern tube or strut and are typically held in place using 2 non-metallic grub/set screws.
2. Saildrive Models Excluded Many modern Beneteaus (e.g., Oceanis 30.1, 34.1, 38.1, 40.1, 46.1, 51.1) and performance models (e.g., First 27, 36) utilize Yanmar or Volvo Penta Saildrives (SD20, SD50, SD60, 120S, 150S). Saildrive systems do not have traditional prop shafts or cutlass bearings.
3. US Built Hulls (Marion, SC) vs. French Built Hulls Most Beneteaus built in France strictly use standard metric shafts (22mm, 25mm, 30mm, 35mm, 40mm). However, some models built in Marion, South Carolina, for the North American market were occasionally fitted with 1-inch (25.4mm) imperial shafts or converted during repowers. Always measure with digital calipers prior to ordering.