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AERO-Classics Oil Coolers for CMI Engines

AERO-Classics engine mounted oil coolers for Continental powered aircraft offer high quality features such as a CNC machined base for reliable, leak-proof mounting. AERO-Classics line of Continental front mounted oil coolers feature a hassle free design that accommodates both 7th stud and non-7th stud engine cases – eliminating the chance of getting the “wrong” oil cooler. They are pressure tested to 300psi, they have optimized internal oil flow design, they have corrosion protection per MIL-C-5541, Class 1A, and FAA 8130-3 is included with each Continental oil cooler. The chart below contains additional information about the AERO-Classics line of FAA/PMA (where noted) oil coolers for remote-mount applications.

Engine Eligibility
Part Number
Part Number
Part Number
8000934 20591A 646880
O-470-A,B,E,G,J,K,L,M,P,R,S,U; IO-470-C,D,E,F,G,H,J,K,L,M,N,P,R,S,U,V 8000925 20585A 627392
O-470-B,J,K,L,M,R; IO-470-D,F,L,M,S; IO-520-A,D,E,F,J,K,L; L/TSIO-520-AE, IO-550-D 8000683 20573A 626189
O-470-F,K,L,R; IO-470-L, IO-520-A,D,E,F,J,K,L 8000319 20446A 639151
O-470-M, IO-470-D,U,V; IO-520-A,D,E,F,J,K,L 8000531 20623A 639152
O-470-R,S,U; IO-520-A,D,E,F,J,K,L; TSIO-520-C,G,H,M,P,R,T,AF,CE; IO-550-D,E,F,L 8000545 20795A 639171
IO-520-A,D,E,F,J,K,L 8000127 20448A 652759
IO-520-A,D,E,F,J,K,L; L/TSIO-520-AE, IO-550-D 8000687 20440A 652671
IO-520-B,BA,BB,C,CB,M,MB; TSIO-520-B,D,K,UB; IO-550-A,B,C 8000960 10278A 654572
TSIO-520-BE,E,J,L,N,VB,WB,EB,JB,LB,NB; IO-550-B,C,G; TSIO-550-E 8000440 10279A 654580
GTSIO-520-C,D,F,H,K,L,M,N 8000464 10196A 646685
IO-550-B,C; IO-F550-B,C; TSIO-520-B 8001213 10278A 655090
IO-550-G,N,P,R; IO-F550-G,N,P,R; TSIO-550-G 8000953 10281A 654585