Daytona | M8 High Volume Oil Pump Assembly, Oil Cooled

This high volume oil pump assembly from Daytona is built for Harley-Davidson M8 air cooled and oil cooled engines, replacing the OEM lubrication pump with a larger feed and return gerotor assembly. Riders looking to improve oiling at both idle and higher rpm will benefit from the increased feed and scavenge capacity over the stock 4th generation M8 pump. The kit arrives complete with a new rear cover, relief valve and spring, and is supplied ready to install with instructions. It is not suitable for Twin Cooled (water cooled) M8 engines.

Key Features

• Larger feed gerotor assembly
• Larger return (scavenge) gerotor assembly
• New rear cover included
• Relief valve and spring included
• Feed increased by 126% at 1000 rpm vs OEM 4th gen pump
• Feed increased by 123% at 2500 rpm vs OEM 4th gen pump
• Scavenge increased by 131% at 1000 rpm vs OEM 4th gen pump
• Scavenge increased by 146% at 2500 rpm vs OEM 4th gen pump
• Complete, ready-to-install kit
• Supplied with installation instructions

Specifications

• Replaces OEM oil pump 62400178 (2017-2019 M8)
• Replaces OEM oil pump 62400238 (2020-2025 M8)
• Replaces OEM rear cover 62400206 (2017-2019 M8)
• Replaces OEM rear cover 62400245 (2020-2025 M8)
• Compatible with air cooled and oil cooled M8 engines only

Usage & Care Tips

• Confirm your engine is air cooled or oil cooled before ordering - this pump does not fit Twin Cooled (water cooled) M8 models
• Follow the supplied installation instructions when fitting the pump and rear cover

Fitment

• HD: Softail 2018-2025
• HD: FLT/Touring 2017-2025
• Excludes Twin-Cooled (water-cooled) models