Harddrive Oil Pump gasket kit - FOR 820-50103 — Harley-Davidson (1971-1999)

Harddrive oil pump gasket kit designed for use with Harddrive oil pump model 820-50103. This kit contains the gaskets and seals needed to rebuild or service a Harddrive oil pump on V-twin motorcycles.

Features

• Gaskets and seals for Harddrive oil pump 820-50103
• Cast aluminum pump construction with CNC machining
• Routes surplus oil to main supply passage to reduce unnecessary filtering
• Splits bottom and top end oil supply for increased hydraulic lifter pressure
• Includes check ball and pressure relief valve assemblies

Specifications

• Brand: Harddrive
• Manufacturer Part #: 301489
• UPC: 191361507670
• Fits Harddrive Model: 820-50103
• Weight: 0.07 lbs
• Country of Origin: China (Taiwan)

Fitment

Fits V-twin motorcycles equipped with Harddrive oil pump model 820-50103. Verify your pump model number before ordering to ensure compatibility.

Frequently Asked Questions

What's included in this gasket kit?

Gaskets, seals, check ball, and pressure relief valve assemblies needed to service a Harddrive oil pump 820-50103.

Is this the right kit for my Harddrive oil pump?

This kit is specifically for Harddrive model 820-50103. Check your pump's part number to confirm compatibility before ordering.

Can I use this kit to upgrade an earlier engine oiling system?

Yes — Harddrive oil pumps route surplus oil to the main supply passage, allowing you to upgrade older engines to an 81-up oiling system.

Does this split oil supply between the top and bottom end?

Yes — the Harddrive pump system splits oil supply to increase pressure to hydraulic lifters and the top end.