Combined intake and exhaust manifold — Harley-Davidson patent US1328150A (1920)
PatentUS1328150A
TypeUtility patent
Filed1918-02-19
Granted1920-01-13
InventorWilliam S Harley
SystemExhaust
“' w, s. HARLEY.' COMBINED INTAKE AND EXHAUST MANIFOLD. ` y A15-momma man mp1s. 191m 1.,328,150 Patented Jan. 13, 1920. mman STATES PATENT ermee., . I ,/Z l Y i I WILLIAM S. HARLEY, F MILWAUKEE, WISCONSIN, ASSIGNOR TO ,HARLEY-:DAVIDSON MOTOR QOMPANY, 0F MILWAUKEEWISCONSINf' I COMBINEDINTAKE AND…”
Drawings (1 sheet)

Parts for this system
31-0783
Angle Exhaust Bracket Chrome
$6.3215-8286
Ultima M8 Tapered Exhaust Gasket
$6.3541-0125
Exhaust Port Nuts Zinc
$8.5112-1187
Exhaust Port Nuts Chrome
$8.51Check fitment first — add your bike and we flag what fits.
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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.