Plug, Feed Pump Piston Chamber

22521-77021

Superseded / ended 1983-02 PNC 22521 Japan

Fitment

Codes the factory prints against this line. Hover for the catalogue's own expansion.

B,2B,3B BU2#,3#,4#,50

Fits: Dyna BU2#,3#,4#,5#
Valid: 1977-08 → 1983-02
Model period: not recorded — this catalogue predates the field
Destination †: 01
Catalogue page †: 0011/0112

† Read from the record layout but confirmed by no published legend.

Shown on

Figure MF1841C

Interchangeable numbers

Number	Alternative	Effective
22521-67010	22521-77021	1990-08
22521-77020	22521-77021	2009-07
S2284-51360	22521-77021	2009-07

List price

Not priced in this market.

Only the Japanese dataset ships a price file. Add the part to an enquiry to ask a seller for a quote.

This number everywhere

Every vehicle in every market that takes 22521-77021.

Show all applications

No quantity, deliberately

The factory catalogue records which parts a vehicle takes, never how many. Quantity was always typed in by the parts counter when raising an order, so nothing here can tell you whether you need one or four.