Thick 6mm washer (not copper) that compresses when you torque the head bolts on the engine.
Part number 90442-035-000
Fits models:
1973-1985 ATC70
1980-1983 C70
C70K1 A MOTORCYCLE, JPN, VIN# C70-2003703
C70M A MOTORCYCLE, JPN, VIN# C70M-017962
CB125TT A (90) MOTORCYCLE, JPN, VIN# JH2JC063-LK000001
CB125TT AC (90) MOTORCYCLE, JPN, VIN# JH2JC064-LK000001
CB400A A (78) MOTORCYCLE, JPN, VIN# CB400A-2000015
CB400T A (80) MOTORCYCLE, JPN, VIN# NC03-2000001 TO NC03-2011626
CB400TI A (78) MOTORCYCLE, JPN, VIN# CB400T-2000022
CB400TI A (79) MOTORCYCLE, JPN, VIN# CB400T-2100006
CB400TII A (78) MOTORCYCLE, JPN, VIN# CB400T-4000048
CB400TII A (79) MOTORCYCLE, JPN, VIN# CB400T-4100006
CB500 A MOTORCYCLE, JPN, VIN# CB500-1000001
CB500K1 A MOTORCYCLE, JPN, VIN# CB500-2000001
CB500K2 A MOTORCYCLE, JPN, VIN# CB500-2100001
CB550 A MOTORCYCLE, JPN, VIN# CB550K-1000001
CB550F A MOTORCYCLE, JPN, VIN# CB550F-1109886
CB550F A (76) MOTORCYCLE, JPN, VIN# CB550F-2000003 TO CB550F-2010866
CB550F A (77) MOTORCYCLE, JPN, VIN# CB550F-2100001 TO CB550F-2114871
CB550K A (76) MOTORCYCLE, JPN, VIN# CB550K-1230001
CB550K A (77) MOTORCYCLE, JPN, VIN# CB550K-2000007 TO CB550K-2015308
CB550K A (78) MOTORCYCLE, JPN, VIN# CB550K-2100001 TO CB550K-2122082
CB550K1 A MOTORCYCLE, JPN, VIN# CB550K-1200001
CBR1000RA 2A (09) MOTORCYCLE, JPN, VIN# JH2SC59F-9K000001 TO JH2SC59F-9K009999
CBR1000RA 2A/A (09) MOTORCYCLE, JPN, VIN# JH2SC59F-9K000001 TO JH2SC59F-9K009999
CBR1000RA 3AC (09) MOTORCYCLE, JPN, VIN# JH2SC59G-9K000001 TO JH2SC59G-9K009999
CBR1000RA 3AC/A (09) MOTORCYCLE, JPN, VIN# JH2SC59G-9K000001 TO JH2SC59G-9K009999
CBR1000RA 5AC (14) MOTORCYCLE, JPN, VIN# JH2SC598-EK500001
CBR1000RA A (09) MOTORCYCLE, JPN, VIN# JH2SC597-9K000001 TO JH2SC597-9K009999
CBR1000RA A/A (09) MOTORCYCLE, JPN, VIN# JH2SC597-9K000001 TO JH2SC597-9K009999
CBR1000RA AC (09) MOTORCYCLE, JPN, VIN# JH2SC598-9K000001 TO JH2SC598-9K009999
CBR1000RA AC (10) MOTORCYCLE, JPN, VIN# JH2SC598-AK100001 TO JH2SC598-AK199999
CBR1000RA AC (11) MOTORCYCLE, JPN, VIN# JH2SC598-BK200001
CBR1000RA AC (12) MOTORCYCLE, JPN, VIN# JH2SC598-CK300001 TO JH2SC598-CK399999
CBR1000RA AC (13) MOTORCYCLE, JPN, VIN# JH2SC598-DK400001 TO JH2SC598-DK499999
CBR1000RA AC/A (09) MOTORCYCLE, JPN, VIN# JH2SC598-9K000001 TO JH2SC598-9K009999
CBR1000RR 2A (08) MOTORCYCLE, JPN, VIN# JH2SC594-8M000001 TO JH2SC594-8M019999
CBR1000RR 2A (09) MOTORCYCLE, JPN, VIN# JH2SC594-9K100001 TO JH2SC594-9K100002
CBR1000RR 2A (11) MOTORCYCLE, JPN, VIN# JH2SC594-BK300001
CBR1000RR 2A (12) MOTORCYCLE, JPN, VIN# JH2SC594-CK400001 TO JH2SC594-CK499999
CBR1000RR 2A (13) MOTORCYCLE, JPN, VIN# JH2SC594-DK500001 TO JH2SC594-DK599999
CBR1000RR 2A/A (08) MOTORCYCLE, JPN, VIN# JH2SC594-8K020001 TO JH2SC594-8K029999
CBR1000RR 2A/A (09) MOTORCYCLE, JPN, VIN# JH2SC594-9K100003 TO JH2SC594-9K199999
CBR1000RR 3AC (08) MOTORCYCLE, JPN, VIN# JH2SC595-8M000001 TO JH2SC595-8M019999
CBR1000RR 3AC (09) MOTORCYCLE, JPN, VIN# JH2SC595-9K000001 TO JH2SC595-9K099999
CBR1000RR 3AC (11) MOTORCYCLE, JPN, VIN# JH2SC595-BK300001
CBR1000RR 3AC (12) MOTORCYCLE, JPN, VIN# JH2SC595-CK400001 TO JH2SC595-CK499999
CBR1000RR 3AC (13) MOTORCYCLE, JPN, VIN# JH2SC596-DK200001 TO JH2SC596-DK299999
CBR1000RR 3AC/A (08) MOTORCYCLE, JPN, VIN# JH2SC595-8K020001 TO JH2SC595-8K029999
CBR1000RR 3AC/A (09) MOTORCYCLE, JPN, VIN# JH2SC595-9K000001 TO JH2SC595-9K099999
CBR1000RR 4A (09) MOTORCYCLE, JPN, VIN# JH2SC59J-9K000001 TO JH2SC59J-9K001005
CBR1000RR 4A (11) MOTORCYCLE, JPN, VIN# JH2SC59J-BK300001
CBR1000RR 4A (13) MOTORCYCLE, JPN, VIN# JH2SC595-DK500001 TO JH2SC595-DK599999
CBR1000RR 4A (14) MOTORCYCLE, JPN, VIN# JH2SC595-EK600001
CBR1000RR 4A/A (09) MOTORCYCLE, JPN, VIN# JH2SC59J-9K001006 TO JH2SC59J-9K099999
CBR1000RR 5AC (09) MOTORCYCLE, JPN, VIN# JH2SC59L-9K000001 TO JH2SC59L-9K000127
CBR1000RR 5AC (11) MOTORCYCLE, JPN, VIN# JH2SC59L-BK300001
CBR1000RR 5AC (13) MOTORCYCLE, JPN, VIN# JH2SC597-DK200001 TO JH2SC597-DK299999
CBR1000RR 5AC (14) MOTORCYCLE, JPN, VIN# JH2SC597-EK300001
CBR1000RR 5AC/A (09) MOTORCYCLE, JPN, VIN# JH2SC59L-9K000128 TO JH2SC59L-9K099999
CBR1000RR A (08) MOTORCYCLE, JPN, VIN# JH2SC590-8M000001 TO JH2SC590-8M019999
CBR1000RR A (09) MOTORCYCLE, JPN, VIN# JH2SC590-9K100001 TO JH2SC590-9K101089
CBR1000RR A (10) MOTORCYCLE, JPN, VIN# JH2SC590-AK200001 TO JH2SC590-AK299999
CBR1000RR A (11) MOTORCYCLE, JPN, VIN# JH2SC590-BK300001
CBR1000RR A (12) MOTORCYCLE, JPN, VIN# JH2SC590-CK400001 TO JH2SC590-CK499999
CBR1000RR A (13) MOTORCYCLE, JPN, VIN# JH2SC590-DK500001 TO JH2SC590-DK599999
CBR1000RR A (14) MOTORCYCLE, JPN, VIN# JH2SC590-EK600001
CBR1000RR A/A (08) MOTORCYCLE, JPN, VIN# JH2SC590-8K020001 TO JH2SC590-8K029999
CBR1000RR A/A (09) MOTORCYCLE, JPN, VIN# JH2SC590-9K101090 TO JH2SC590-9K199999
CBR1000RR AC (08) MOTORCYCLE, JPN, VIN# JH2SC591-8M000001 TO JH2SC591-8M019999
CBR1000RR AC (09) MOTORCYCLE, JPN, VIN# JH2SC591-9K100001 TO JH2SC591-9K199999
CBR1000RR AC (10) MOTORCYCLE, JPN, VIN# JH2SC591-AK200001 TO JH2SC591-AK299999
CBR1000RR AC (11) MOTORCYCLE, JPN, VIN# JH2SC591-BK300001
CBR1000RR AC (12) MOTORCYCLE, JPN, VIN# JH2SC591-CK400001 TO JH2SC591-CK499999
CBR1000RR AC (13) MOTORCYCLE, JPN, VIN# JH2SC591-DK500001 TO JH2SC591-DK599999
CBR1000RR AC (14) MOTORCYCLE, JPN, VIN# JH2SC591-EK600001
CBR1000RR AC/A (08) MOTORCYCLE, JPN, VIN# JH2SC591-8K020001 TO JH2SC591-8K029999
CBR1000RR AC/A (09) MOTORCYCLE, JPN, VIN# JH2SC591-9K100001 TO JH2SC591-9K199999
CBR1000S AC (14) MOTORCYCLE, JPN, VIN# JH2SC596-EK300001
1979-1982 CBX
CL70 A MOTORCYCLE, JPN, VIN# CL70-100001 TO CL70-108641
CL70K1 A MOTORCYCLE, JPN, VIN# CL70-200001 TO CL70-214061
CL70K2 A MOTORCYCLE, JPN, VIN# CL70-300001 TO CL70-313700
CL70K3 A MOTORCYCLE, JPN, VIN# CL70-1300001
CM185T A (78) MOTORCYCLE, JPN, VIN# CM185T-2000014
CM185T A (78) MOTORCYCLE, JPN, VIN# CM185T-2000014
CM185T A (79) MOTORCYCLE, JPN, VIN# CM185T-2100011
CM200T A (80) MOTORCYCLE, JPN, VIN# MC01-2000028 TO MC01-2022424
CM200T A (81) MOTORCYCLE, JPN, VIN# JH2MC010-BM100001 TO JH2MC010-BM119610
CM200T A (82) MOTORCYCLE, JPN, VIN# JH2MC010-CM200001 TO JH2MC010-CM204491
CM400A A (79) MOTORCYCLE, JPN, VIN# NC02-2000001 TO NC02-2005965
CM400A A (80) MOTORCYCLE, JPN, VIN# NC02-2100001 TO NC02-2106459
CM400T A (79) MOTORCYCLE, JPN, VIN# NC01-2000001 TO NC01-2012717
CM400T A (80) MOTORCYCLE, JPN, VIN# NC01-2100001 TO NC01-2128926
CRF50F A (04) MOTORCYCLE, JPN, VIN# JH2AE030-4K400001 TO JH2AE030-4K499999
CRF50F A (05) MOTORCYCLE, JPN, VIN# JH2AE030-5K500001 TO JH2AE030-5K599999
CRF50F A (06) MOTORCYCLE, JPN, VIN# JH2AE030-6K600001 TO JH2AE030-6K699999
CRF50F A (07) MOTORCYCLE, JPN, VIN# JH2AE030-7K700001 TO JH2AE030-7K799999
CRF50F A (08) MOTORCYCLE, JPN, VIN# JH2AE030-8K800001 TO JH2AE030-8K899999
CRF50F A (09) MOTORCYCLE, JPN, VIN# JH2AE030-9K900001 TO JH2AE030-9K999999
CRF50F A (11) MOTORCYCLE, JPN, VIN# JH2AE030-BK100001 TO JH2AE030-BK199999
CRF50F AC (12) MOTORCYCLE, JPN, VIN# JH2AE031-CK000001
CRF70F A (04) MOTORCYCLE, JPN, VIN# JH2DE020-4K700001 TO JH2DE020-4K799999
CRF70F A (05) MOTORCYCLE, JPN, VIN# JH2DE020-5K800001 TO JH2DE020-5K899999
CRF70F A (06) MOTORCYCLE, JPN, VIN# JH2DE020-6K900001 TO JH2DE020-6K999999
CRF70F A (07) MOTORCYCLE, JPN, VIN# JH2DE020-7K000001 TO JH2DE020-7K099999
CRF70F A (08) MOTORCYCLE, JPN, VIN# JH2DE020-8K100001 TO JH2DE020-8K199999
CRF70F A (09) MOTORCYCLE, JPN, VIN# JH2DE020-9K200001 TO JH2DE020-9K299999
CRF70F A (11) MOTORCYCLE, JPN, VIN# JH2DE020-BK300001 TO JH2DE020-BK399999
CRF70F AC (12) MOTORCYCLE, JPN, VIN# JH2DE021-CK000001
CT70 A MOTORCYCLE, JPN, VIN# CT70-100001
CT70 A (76) MOTORCYCLE, JPN, VIN# CT70-2500004 TO CT70-2505533
CT70 A (77) MOTORCYCLE, JPN, VIN# CT70-2600008 TO CT70-2611967
CT70 A (78) MOTORCYCLE, JPN, VIN# CT70-2700005 TO CT70-2706886
CT70 A (79) MOTORCYCLE, JPN, VIN# CT70-5000021
CT70 A (80) MOTORCYCLE, JPN, VIN# CT70-5100007 TO CT70-5108606
CT70 A (81) MOTORCYCLE, JPN, VIN# JH2DD010-BS200002 TO JH2DD010-BS206091
CT70 A (82) MOTORCYCLE, JPN, VIN# JH2DD010-CS300007 TO JH2DD010-CS300007
CT70 A (91) MOTORCYCLE, JPN, VIN# JH2DB010-MS000005 TO JH2DB010-MS002310
CT70 A (92) MOTORCYCLE, JPN, VIN# JH2DB010-NK100001 TO JH2DB010-NK101762
CT70 A (93) MOTORCYCLE, JPN, VIN# JH2DB010-PK200001
CT70 A (94) MOTORCYCLE, JPN, VIN# JH2DB010-RK300001
CT70 AC (91) MOTORCYCLE, JPN, VIN# JH2DB011-MS000007 TO JH2DB011-MS000645
CT70 AC (92) MOTORCYCLE, JPN, VIN# JH2DB011-NK100001 TO JH2DB011-NK100384
CT70 AC (93) MOTORCYCLE, JPN, VIN# JH2DB011-PK200001
CT70 AC (94) MOTORCYCLE, JPN, VIN# JH2DB011-RK300001
CT70H A MOTORCYCLE, JPN, VIN# CT70H-100001
CT70HK1 A MOTORCYCLE, JPN, VIN# CT70H-2000001
CT70K1 A MOTORCYCLE, JPN, VIN# CT70-2000001
CT70K2 A MOTORCYCLE, JPN, VIN# CT70-2100001
CT70K3 A MOTORCYCLE, JPN, VIN# CT70-2300001 TO CT70-2332907
CT70K4 A MOTORCYCLE, JPN, VIN# CT70-2400001 TO CT70-2408852
1974-1975 MR50
1977 NC50
1971-1973 SL70
1982-1983 XL250R
1975-1976 XL70
XR50R A (00) MOTORCYCLE, JPN, VIN# JH2AE030-YK000001
XR50R A (01) MOTORCYCLE, JPN, VIN# JH2AE030-1K100001
XR50R A (02) MOTORCYCLE, JPN, VIN# JH2AE030-2K200001
XR50R A (03) MOTORCYCLE, JPN, VIN# JH2AE030-3K300001
1997-2003 XR70R\
1968-1978 Z50A
1979-1999 Z50R
1986 Z50RD
1988 ZB50
