Uprated Alternator / Generator

WOSP High Output 320A Alternator

The WOSP LMA370-HO is a high-performance 320-amp alternator designed for Porsche 924S, 928, 944 and 968 models requiring increased electrical power.

Fits:

• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88
• Porsche 944S2 3.0L 16V 1989-91
• Porsche 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo 2.5L 8V 1989-91
• Porsche 944 Turbo S 2.5L 8V 1988
• Porsche 968 3.0L 1992-94
• Porsche 968 Sport 3.0L 1994-95
• Porsche 968 CS 3.0L 1993-95
• Porsche 968 Turbo S 3.0L 1993-94
• Porsche 928S2 4.7L 1984-86
• Porsche 928S4 5.0L 1987-92
• Porsche 928GT 5.0L 1989-91
• Porsche 928GTS 5.4L 1992-95

Part of WOSP's advanced 300 Series, it combines modern hairpin winding technology with a precision-machined billet aluminium housing, delivering exceptional electrical output from a compact, lightweight unit.

What Does It Do?

The alternator generates electricity while the engine is running, powering the vehicle's electrical systems and maintaining battery charge.

The WOSP LMA370-HO provides up to 320 amps of rated electrical output, offering significantly greater charging capacity than conventional alternators.

This makes it particularly useful for modified Porsche vehicles with increased electrical demands.

Why Upgrade to a 320A Alternator?

Standard alternators are designed around the electrical requirements of the original vehicle.

Modified Porsche engines and vehicles fitted with additional electrical equipment may require substantially more charging capacity.

The WOSP 320A alternator is particularly suitable for applications involving:

• High-performance electric cooling fans
• Upgraded lighting systems
• Powerful audio equipment
• Motorsport electronics and data logging
• Additional electrical accessories
• High-demand electrical systems

Its increased output capacity helps support these accessories while maintaining battery charging during operation.

Advanced Hairpin Winding Technology

What makes the WOSP LMA370-HO special is its advanced 300 Series alternator construction.

Unlike conventional alternators using round copper wire, WOSP uses square-wire hairpin stator windings.

This technology allows more copper to be packed into the stator, increasing current density and enabling substantially higher electrical output within a compact housing.

The high-output version uses an uprated winding configuration to achieve its 320A maximum rating.

Precision Billet Aluminium Construction

The alternator housing is precision-machined from billet aluminium rather than using a conventional cast housing.

This provides a strong, compact construction designed to accommodate the advanced high-output electrical components.

Weighing approximately 5.3kg, the LMA370-HO combines high electrical capacity with a compact design suitable for selected Porsche installations.

Important High-Output Considerations

The LMA370-HO is designed to achieve its maximum output at higher alternator speeds.

Unlike some standard-output alternatives, high-output WOSP units require increased RPM to reach their rated charging capacity and may produce less current at idle.

The vehicle's charging cables, electrical connections, fusing and belt drive must also be suitable for the increased output.

For standard Porsche vehicles without additional electrical equipment, a lower-output WOSP alternator may be more appropriate.

When Should It Be Replaced or Upgraded?

Consider upgrading when:

• The existing alternator cannot support increased electrical demand
• Additional electrical accessories are being installed
• Battery charging becomes inadequate under heavy electrical load
• Building a modified road, track or competition Porsche
• Replacing a failed alternator with a higher-capacity alternative

Confirm the cause of charging problems before replacement, as wiring faults, battery condition and belt issues can produce similar symptoms.

Key Features

• WOSP Performance 300 Series alternator
• Maximum rated output of 320 amps
• Advanced square-wire hairpin stator technology
• Precision-machined billet aluminium housing
• Compact 5.3kg construction
• 12V electrical system
• 5PK pulley, reference LMP009
• Left-hand, three-lug mounting
• Designed for high electrical demand
• Suitable for selected Porsche 924S, 928, 944 and 968 models

Porsche 924S, 928, 944 & 968 High Output Alternators

High-output alternators provide increased electrical charging capacity for classic and performance Porsche vehicles fitted with additional electrical equipment.

The WOSP LMA370-HO 320A alternator combines advanced hairpin winding technology with a billet aluminium housing, making it a specialist upgrade for modified Porsche 924S, 928, 944 and 968 models.

Designed for demanding electrical applications, it offers substantially greater rated output than conventional alternators while maintaining a compact construction.