508990 Motor sprocket nut

View fitment OEM: 8025 OEM: 508990
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Estimated delivery: 3–15 working days

Part #: 508990

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Iron City Dealer

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Specifications

Brand
MCS
Part Number
508990
OEM Reference
8025
Pack Quantity
Each
Category
Motor Sprocket Nuts
VAT Rate
20%

About This Product

This MCS motor sprocket nut fits 1958 to 1969 XLCH Sportsters that do not run a compensating sprocket. It replaces OEM part number 8025. These early Ironheads are kickstart-only and high-compression. The nut needs proper torque to hold clamping load on the sprocket shaft and keep the primary drive in check. Thread pitch matches original. Do not overtighten and damage the shaft. Sold individually.

Manufacturer part number: 508990.

Fitment

4 models

58-69 XLCH(NOT WITH COMPENSATING SPROCKET)

Sportster
4 models
Brand Year Model
Harley-Davidson 1957–1959 Sportster XL-900
Harley-Davidson 1958 Sportster XLC-900
Harley-Davidson 1958–1968 Sportster XLCH-900
Harley-Davidson 1958–1968 Sportster XLH-900

Planning other changes? Find your model in the bike customiser.

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Who are we? Leeds Harley-Davidson - Iron City Motorcycles

Who are we? Leeds Harley-Davidson - Iron City Motorcycles

This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.

From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.

Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.

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