V4 Crossflow Engines use 18-3673           V6 Crossflow Engines use 18-3674

Evinrude - Johnson Thermostat Kits & Parts
Chart notes are listed in (red) at bottom of chart
HP	Year	Thermostat Kit	Thermostat	Valve	Valve Seat	Valve Diaphragm	Valve Retainer	Valve Cup	Valve Spring	Grommet
5	1965-68, 1986	18-3672 ➄	18-3553	---	---	---	---	---	---	---
5.5	1959-64	18-3672 ➄	18-3553	---	---	---	---	---	---	---
6	1965-79, 1986	18-3672 ➄	18-3553	---	---	---	---	---	---	---
7.5	1980-86	18-3672 ➄	18-3553	---	---	---	---	---	---	---
8	1986	18-3672 ➄	18-3553	---	---	---	---	---	---	---
9.5	1964-73	18-3672 ➄	18-3553	---	---	---	---	---	---	---
9.9	1974-86	18-3672 ➄	18-3553	---	---	---	---	---	---	---
10	1959-63	18-3672 ➄	18-3553	---	---	---	---	---	---	---
15	1974-86	18-3672 ➄	18-3553	---	---	---	---	---	---	---
18	1959-73	18-3672 ➄	18-3553	---	---	---	---	---	---	---
20	1981-94	18-3672 ➄	18-3553	---	---	---	---	---	---	---
25 (1)	1969-94	18-3672 ➄	18-3553	---	---	---	---	---	---	---
28	1989-94	18-3672 ➄	18-3553	---	---	---	---	---	---	---
30	1986-94	18-3672 ➄	18-3553	---	---	---	---	---	---	---
35	1959, 1976-94	18-3672 ➄	18-3553	---	---	---	---	---	---	---
40	1960-69	18-3672 ➄	18-3553	---	---	---	---	---	---	---
45	1989-92 (2)	18-3672 ➄	18-3553	---	---	---	---	---	---	---
50	1971-75, 1979, 1981-86	18-3672 ➄	18-3553	---	---	---	---	---	---	---
55	1976-92 (3)	18-3672 ➄	18-3553	---	---	---	---	---	---	---
60	1969-70	18-3669 ➄	18-3557	---	---	---	---	---	---	---
60	1980-86	18-3672 ➄	18-3553	---	---	---	---	---	---	---
60, 60TTL	1993	---	18-3561	---	---	---	---	---	---	---
65	1971-73	18-3669	18-3557	---	---	---	---	---	---	---
65	1993	---	18-3561	---	---	---	---	---	---	---
65C	1984-86	18-3669	18-3557	---	---	---	---	---	---	---
65 Jet	1994-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
70	1974-86	18-3669	18-3557	---	---	---	---	---	---	---
70, 70TTL	1993	---	18-3561	---	---	---	---	---	---	---
75	1978-88	18-3669	18-3557	---	---	---	---	---	---	---
80 Jet	1994-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
85	1978-80	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
85	1993-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
88	1987-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
90 (4)	1983-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
90 Jet	1994	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
100	1979-80	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
100	1990-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
100 Comm	1984-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
110	1985-89	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
112	1994-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
115 (4)	1978-95	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
120	1988-91	---	---	---	---	18-1222	---	18-1221	---	---
140	1978-85	18-3673	18-3553	18-3564	---	---	---	---	18-1243	18-2391
140	1988-91	---	---	---	---	18-1222	---	18-1221	---	---
150	1978-91	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
155	1984-91	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
175	1977-91	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
185	1984-85	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
200	1977-83	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
200	1988-93	---	---	---	---	18-1222	18-3565	18-1221	---	---
225	1988-93	---	---	---	---	18-1222	18-3565	18-1221	---	---
235	1978-85	18-3672 ➄	18-3553	18-3563	18-1219	18-3567	18-3565	18-3562	18-1243	18-0182
(1) All 1989-91 models except DR, DR & DT
(2) Commercial
(3) Commercial also
(4) Except 60 degree models.
(5) 2 kits required per engine, 1 per head. Just thermostat and O ring use 18-3672   (2 required)