KPMI Basewasher 20-20855 for Harley-Davidson Shovelhead 80 1978-1983
$61.00
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KPMI Basewasher 20-20855 for Harley-Davidson Shovelhead 80 1978-1983
$61.00
KPMI Basewashers are engineered from high-strength heat-treated steel to safely control lateral valve spring movement and establish the precise installed spring height. Designed using finite element analysis (FEA) software, each basewasher maximizes mechanical durability while eliminating sharp edges via carefully radiused corner steps.
Featuring an inner diameter tailored to provide a near-net fit with allowance for oversize valve guides, these OEM replacement washers ensure proper spring location and valvetrain stability. They provide an exact fit for intake and exhaust positions on 1978–1983 Harley-Davidson Shovelhead 80-inch engines.
Key Features
| Brand | KPMI |
| Manufacturer Part Number | 20-20855 |
| Material | H.T. Steel |
| Type | Intake / Exhaust |
| Quantity | Pack of 4 |
| Product Type | Valve Spring Basewasher |
| Compatibility | Harley-Davidson Shovelhead 80" (1978–1983) |
| Replacement Type | OEM Replacement |
| Product Weight | 0.1 kg |
Highlights
- FEA-engineered heat-treated steel construction for maximum strength
- Controls lateral spring movement and sets proper installed height
- Radiused corner steps eliminate sharp edges
- Designed to fit standard and oversize valve guides
Compatibility
Compatible with intake and exhaust positions on 1978–1983 Harley-Davidson Shovelhead 80" models.
Frequently asked questions
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