KPMI Basewasher 20-20485 for Harley-Davidson Flathead Knucklehead 1930-2048
$33.00
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KPMI Basewasher 20-20485 for Harley-Davidson Flathead Knucklehead 1930-2048
$33.00
Precision-engineered from heat-treated steel, KPMI Basewashers provide essential support for your Harley-Davidson valvetrain. Designed to safely control lateral spring movement while accurately setting the valve spring installed height, each component is developed using FEA design software to maximize mechanical strength.
These OEM replacement basewashers feature carefully calculated corner radii to eliminate sharp edges and protect internal components. The inner diameter offers a precise fit on standard valve guides with adequate clearance for oversize guides, ensuring dependable intake and exhaust performance.
Key Features
| Brand | KPMI |
| Part Number | 20-20485 |
| Material | Heat-Treated Steel |
| Quantity | Pack of 4 |
| Valve Type Compatibility | Intake / Exhaust |
| Weight | 0.04 kg |
Highlights
- Engineered using FEA software to maximize structural strength
- Controls lateral valve spring movement and establishes correct installed height
- Smooth corner radii prevent sharp edges and reduce wear
- Manufactured from durable heat-treated steel
Compatibility
Fits Harley-Davidson Flathead models (1930–1973) for both intake and exhaust valve applications.
Frequently asked questions
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