Description
Comparison points and tradeoffs
When comparing Ultima High Output Polished Oil Pump 1992 & Later Big Twin Models, 98-517 with other Oil Pumps options, use this source-backed detail as the primary discriminator: Outlet Connection Size: 0.5 Inches.
Use this second fact to evaluate the tradeoff: Category: Replacement Parts / Engines & Engine Parts / Engine Parts / Oil Pumps & Parts / Oil Pumps. A third point to compare across alternatives is: Fit Type: Universal Fit.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
| Brand | Ultima |
|---|---|
| Fit Type | Universal Fit |
| Vehicle Service Type | Motorcycle |
| Auto Part Position | Front |
| Outlet Connection Size | 0.5 Inches |
| Inlet Connection Size | 0.5 Inches |
| Outlet Connection Type | Barb |
| Body Material | Alloy Steel |
| Inlet Connection Type | Hose Barb |
| Connector Type | Barb |
| Gas Type | Gasoline |
| Mounting Type | Front Mount |
| Operation Mode | Automatic |
| Product Grade | Replacement Part |
| Automotive Fit Type | Universal Fit |
| Manufacturer | Ultima |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 98-517 |
Ultima High Volume Polished Oil Pump Fits 1992 & Later Harley Big Twin Models and Most Aftermarket Evolution Engines.
Source product highlights
About this item
- Checked on a Coordinate Measuring Machine
- Flow tested on a test stand for consistancy
- High Volume Pump has much greater capacity for pressure & volume
- Feeds the bottom end at idle speeds
- Keeps consistant flow throughout RPM range to keep from floating bottom end bearings




Kindle Customer –
good pump – good price!