Engine

(Most engine parts cross over to the USDM CL9/2004-2008 Acura TSX)


Spark Plugs
A-Premium APSP097 (A-Premium Canada)
NGK 6994/IZFR6K11 (Amazon Link)

Ignition Coil
30520-PNA-007
NGK 48922

Upstream Oxygen Sensor
2004-2008 Acura TSX
NTK 24668 (Amazon Link)

Downstream Oxygen Sensor
36532-RFE-J01
RB1/2 Odyssey Specific
(Bosch 15410 will work, but you will need to de-pin the wiring out of the new plug, and re-pin it to your old plug. Alternatively you can De-pin and Re-pin the plug on the vehicle side from a comparable 03-07 Accord / 04-08 TSX, and save yourself the hassle in the future)

RB1/2 Air Filter
OEM Paper Style 
K&N 33-2072 (Amazon Link)
aFe 30-10041
NapaGold/WIX 46028

RB3/4 Air Filter
17220-RLF-000

Brian Crower Exhaust Valves
BC3905

Brian Crower Intake Valves
BC3904

Engine Block Heater

(Thanks James Silva for the pic!)

Zerostart 310-0006 (Amazon Link)
Or
Temro 310-0124 (Plug lights up to verify operation)
&
K-Tuned KTD-OIL-103 
K-Tuned USA 
Garage16 Canada
(RB1&2 will need the K-Tuned Oil Block Off Plate along with the block heater. RB3&4 do not require the block off plate.)

Inline Coolant Heater
Zerostart 320-0002 1-1/4" Lower Radiator Hose Heater (Amazon Link)

Battery
Japanese Spec are a much more narrow battery terminal. You will require new terminal ends on battery cables to fit the North American style battery.
OEM Fit - 51R Series (450-500cca)
Modified Fit - 26R Series or 35 Series (550-700cca)
For modified fit you will need to remove the plastic battery tray, purchase a new hold down & ground cable, and carefully Dremel the lower mount fins off the battery. 


Radiator
Closest I could find to a USDM carry over was for the 08 - 12 Accord, but it's 25mm shorter, and the Radiator cap is in a different spot.


AC Condenser
80110-SFE-003 OR 80100-SFE-003
730x419x16mm
no USDM crossover

Starter
A-Premium 17960N (Amazon Link)

Alternator*
Bosch AL1298X

Water Pump
19200-RFE-003 
K24 
04-08 Acura TSX 
03-07 Honda Accord 2.4 (Japan Built Only)
03-11 Honda Element (Japan Built Only)
07-09 Honda CRV (Mexico Built Only)

*Fitting a new Alternator will require changing out the Water Pump Housing from the JDM style to the USDM style. While swapping the housing, it is recommended to change all the Pulleys, Tensioner, and the Water Pump to the USDM style as well.


If you want to do the full auto tensioner setup, you'll need a tensioner out of a 04-08 Acura TSX/Honda Accord, and the Idler Pulley from an EP3 Civic.

RB1/2 Serpentine Belt
OE Pulley Setup
7PK1776
(2004 Honda Accord 2.4L is 1778mm, and will work if your tensioner is good. Part Number Continental 4070700)
TSX Pulley Setup
7PK1755

RB3/4 Serpentine Belt
02-05 Honda CRV
Continental 4070682

Fuel Filter
(In Tank)
17048-SFE-010
03-05 Honda Civic Type R

Air Flow Meter
(On Air Box)
37880-PLM-A01
04-07 Honda CRV

Oil Pressure Switch
37240-PT0-014

Oil Pan Drain Plug
M14x1.5
90009-R70-A00
 
RB1/3 Fuel Pump
17045-SFE-H50
(Level sensor on LH Side) 
(Looks like 05-10 USDM Honda Odyssey is identical, but not confirmed) 
 
RB2/4 Fuel Pump 
17045-SFF-900
(Level sensor on RH Side) 
(Looks like 05-06 Acura RSX is identical, but not confirmed)