Volvo Penta SX and DP-S / DPS spare parts for Z-drives

Overview: Volvo Penta SX & DPS sterndrive systems

The SX and DPS series belong to the classic Volvo Penta Sterndrive systems with Z-drive. The SX-Drive uses a single propeller arrangement and is suitable for compact boats and lighter engines, while the DPS-Drive with DuoProp propellers offers better traction, performance and maneuverability.

Mechanical components & bearings

Spare parts in this category include:

• Shaft Bearings, Needle Bearings and Gimbal Bearings - for stable bearing support

• Propeller shaft seals - for sealing against water and lubricant loss

• Bearing housing components and washers - for mechanical integrity of the drive

Mechanical precision and correct fit are crucial for smooth running and a long service life.

Sealing parts, O-rings & seal kits

Seals ensure tight transitions between housings, flanges and moving components in the Z-drive. This category includes

• Housing seals & O-rings

• Seal kits for star drive housings

• Exhaust and joint bellows

These seals prevent water, oil and air leaks and protect internal components.

Exhaust systems, bellows & hoses

Z-drive specialty parts also include:

• Exhaust bellows & flexible exhaust hoses - for safe exhaust gas routing

• Hinged bellows and protective sleeves - for sealing in the drive base

• Hydraulic and cooling water hoses - for media routing in trim systems

All parts must be compatible with the respective SX or DPS housing.

Hydraulic & trim system parts

Relevant spare parts for trim and steering systems of SX/DPS drives:

• Trim pumps & cylinders

• Hydraulic hoses & fittings

• Sensors & encoders

These components control the drive inclination and improve driving characteristics and handling.

Anodes & protective components

Corrosion protection is crucial in maritime applications. The anodes protect the Sterndrive housing against electrolytic erosion:

• Cavitation plate anodes

• Gimbal plate & transom anodes

• Sets/complete kits for regular maintenance

Anodes should be checked regularly and replaced in good time to prevent expensive damage.

Selection by reference number & year of manufacture

The reference number is the most reliable way to identify suitable spare parts for SX/DPS drives. Parts differ in terms of dimensions, housing shape and connection details, even for externally similar models.

Recommended selection steps:

1. Take the reference number from the old part

2. Determine year of manufacture & drive variant

3. Select suitable parts according to data

A structured allocation reduces incorrect orders and assembly problems.

Installation & maintenance instructions

The following applies when replacing Z drive parts:

• Remove old seals completely

• Clean and check sealing surfaces

• Insert bearings and seals with the correct dimensions

• Observe torques according to specifications

• Check the hydraulics/trim system after installation

Careful assembly extends service life and ensures long-term function.