Insulator, Ventilation Hose Heat

12278-AA020

Superseded / ended 2005-09 PNC 12278 United States

Fitment

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

3MZFE 3300CC 24-Valve Dohc Efi MCL2#

Fits: Sienna GSL2#,MCL2#
Valid: 2003-01 → 2005-09
Model period: 228W
Destination †: 01
Catalogue page †

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

Shown on

Figure 121251

Replacement history

Replaces

12278-20030 12278-20030 12278-20030 12278-20030 12278-20030

Interchangeable numbers

Number	Alternative	Effective
12278-AA010	12278-AA020	2022-07

Other lines in this group

Part number	Period	Status
12278-AA020	2005-09 → —	Current

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 12278-AA020.

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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.