OEM-CYCLE

The northwest premiere used dirt bike parts store and dirt bike engine and part information source. Quality used dirt bike parts, used motocross parts, vintage parts, used dual sport parts and info. Motorcycle salvage is our business.
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IT YAMAHA ENGINE, PARTS, AND FRAME Identification page
In an effort to help fellow bikers properly ID their bike I have provided the following information on VIN ( Vehicle Identification Number ) , Engine ID and part identification.
All the information provided is to the best of my knowledge correct.
As we part more bikes out we will add more information to this chart.
If you find something that is not accurate, please let us know and we will fix it.
This information is not intended for use outside of this web site or for publication.
In other words, use this information at your own risk.
 
YEARTYPEENGINE IDENGINE CASESVIN FRAME USA ONLYAIR BOXAIR BOX TO CARBURETOR BOOTCARBURETORCARB BOOT AND REED BOLT PATTERNCDICLUTCH BASKETCLUTCH BASKET INNERCLUTCH PRESSURE PLATECYLINDERCRANK SHAFTEXHAUST MUFFLERFLY WHEEL ROTORFORK INFOFRONT AXLEFRONT BRAKE BACKING PLATEFRONT HUBREAR AXLEREAR BRAKE BACKING PLATEREAR HUBREAR WHEEL RIMSHOCK ARM LINKAGESIDE STANDTRANSMISSIONTRIPLE TREE
1977IT1751W2                 FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
1978IT175 1W2                FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
1979IT1752W6      FITS 80 YZ125, 80-81 IT175 – 3R3-13565-00-00          FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
1980IT1753R6      FITS 80 YZ125, 80-81 IT175 – 3R3-13565-00-00      FITS 80-81 IT175 3R6-14610-00-00   FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
1981IT1753R6                           
1982IT1755X8  5X8-000101   MIKUNI 5X8       FITS 80-81 IT175 3R6-14610-00-00   FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
1983IT1755X8  5X8-050101   MIKUNI 5X8           FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
                   FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98         
                             
1977IT2501W5FITS 77-78 IT250 IT400, 77 YZ250, 1M2-15121-01-00 1W3-15111-00-00 FITS 76-78 YZ250, 77-78 IT250 IT400, 1W4-14411-00-00    FITS 77-89 IT250, IT400, YZ250, YZ400   FITS 76-78 YZ400, 77-78 IT250 & IT400    FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98IK710 - DRUM ID 130MM - AXLE ID 15MM - BRG TO BRG 93-94MM - FITS 76-81 YZ250, 76-79 YZ400, 77-81 IT175 IT250 YZ125 , 77-79 IT400, 77 79 81 TT500, 77 YZ100  483 - AXLE ID 17MM - BRG TO BRG 126MM - HUB ID 160MM - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT4252.15X18 FITS 74-79 YZ250, 74-75 YZ360, 75 MX250 MX400, 76-77 79 81 TT500, 77-80 IT250, 77-78 YZ400 IT400, 80 IT425  FITS 77-78 IT250 & IT400 
1978IT2502K9FITS 77-78 IT250 IT400, 77 YZ250, 1M2-15121-01-00 1W3-15111-00-00 FITS 76-78 YZ250, 77-78 IT250 IT400, 1W4-14411-00-00    FITS 77-89 IT250, IT400, YZ250, YZ400   FITS 76-78 YZ400, 77-78 IT250 & IT400    FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98IK710 - DRUM ID 130MM - AXLE ID 15MM - BRG TO BRG 93-94MM - FITS 76-81 YZ250, 76-79 YZ400, 77-81 IT175 IT250 YZ125 , 77-79 IT400, 77 79 81 TT500, 77 YZ100  483 - AXLE ID 17MM - BRG TO BRG 126MM - HUB ID 160MM - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT4252.15X18 FITS 74-79 YZ250, 74-75 YZ360, 75 MX250 MX400, 76-77 79 81 TT500, 77-80 IT250, 77-78 YZ400 IT400, 80 IT425  FITS 77-78 IT250 & IT400 
1979IT2502X7FITS 79-80 IT250, 2X7-15111-00-00, 2X7-15121-00-00  FITS 77-79 YZ250, 79-80 IT250 FITS 77-79 YZ250, 79 IT250 IT400 YZ400          FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98   483 - AXLE ID 17MM - BRG TO BRG 126MM - HUB ID 160MM - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT4252.15X18 FITS 74-79 YZ250, 74-75 YZ360, 75 MX250 MX400, 76-77 79 81 TT500, 77-80 IT250, 77-78 YZ400 IT400, 80 IT425    
1980IT2503R7 FITS 79-80 IT250, 2X7-15111-00-00, 2X7-15121-00-00  FITS 77-79 YZ250, 79-80 IT250 FITS 80 IT250 IT425 - 3R8-13565-00-00          FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98IK710 - DRUM ID 130MM - AXLE ID 15MM - BRG TO BRG 93-94MM - FITS 76-81 YZ250, 76-79 YZ400, 77-81 IT175 IT250 YZ125 , 77-79 IT400, 77 79 81 TT500, 77 YZ100  483 - AXLE ID 17MM - BRG TO BRG 126MM - HUB ID 160MM - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT4252.15X18 FITS 74-79 YZ250, 74-75 YZ360, 75 MX250 MX400, 76-77 79 81 TT500, 77-80 IT250, 77-78 YZ400 IT400, 80 IT425    
1981IT2504V5FITS 81-82 IT 250, 99999-01383-00, 3R4-W1512-01-00               FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98IK710 - DRUM ID 130MM - AXLE ID 15MM - BRG TO BRG 93-94MM - FITS 76-81 YZ250, 76-79 YZ400, 77-81 IT175 IT250 YZ125 , 77-79 IT400, 77 79 81 TT500, 77 YZ100     FITS 81-82 IT250 IT465  
1982IT2504V5FITS 81-82 IT 250, 99999-01383-00, 3R4-W1512-01-00               FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98IK710 - DRUM ID 130MM - AXLE ID 15MM - BRG TO BRG 93-94MM - FITS 76-81 YZ250, 76-79 YZ400, 77-81 IT175 IT250 YZ125 , 77-79 IT400, 77 79 81 TT500, 77 YZ100     FITS 81-82 IT250 IT465  
1983IT25029V       FITS 83-86 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT 250, 83-84 IT490 -63T OD 148.65MM - 18T 52.65MM - Basket thickness 71.91MM - ID 32MM -16 Tines 13.92MM wide - 23XFITS 83-86 YZ250, 84-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 39X-16150-00-00FITS 83-87 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 23X-16351-00-00            23X-00 2-A FITS 83 IT250 YZ490, 83-84 IT490, 83-84 YZ250   
                             
                             
1976IT400510             F0T02173    74-77 YZ250,  74-75 YZ360, 76-77 YZ400, 75 MX250, 75 MX400, 76 IT400, 76-78 TT500, 431-25381-00-00FITS 75 MX250 MX400 YZ360, 75-76 YZ250, 76 IT400, YZ400, 76-78 TT500. 483-25321-00-98      
1977IT400 1W6  FITS 76-78 YZ250, 77-78 IT250 IT400, 1W4-14411-00-00   F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465FITS 77-89 IT250, IT400, YZ250, YZ400   FITS 76-78 YZ400, 77-78 IT250 & IT400    FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98   48313 - BLACK - DRUM BRAKE - AXLE ID 17MM - BRG TO BRG 126MM - DRUM ID 160MM - 36 SPOKE - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT425   FITS 77-78 IT250 & IT400 
1978IT4001W6FITS 77-78 IT250 IT400, 77 YZ250, 1M2-15121-01-00 1W3-15111-00-00 FITS 76-78 YZ250, 77-78 IT250 IT400, 1W4-14411-00-00 1W6 F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465FITS 77-89 IT250, IT400, YZ250, YZ400   FITS 76-78 YZ400, 77-78 IT250 & IT400    FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98   48313 - BLACK - DRUM BRAKE - AXLE ID 17MM - BRG TO BRG 126MM - DRUM ID 160MM - 36 SPOKE - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT425   FITS 77-78 IT250 & IT400 
1979IT4002X8     FITS 77-79 YZ250, 79 IT250 IT400 YZ400F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465       36MM CHROME ODCLICK HERE FOR MEASUREMENTSFITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98   48313 - BLACK - DRUM BRAKE - AXLE ID 17MM - BRG TO BRG 126MM - DRUM ID 160MM - 36 SPOKE - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT425     
                             
1980IT4253R8 3R8-000101  3R8 F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465         FITS 76-81 YZ250, 76-79 YZ400, 77-84 YZ125, 77-83 IT175, 77-82 IT250, 77-79 IT400, 80 IT425, 80-82 TT250, 79-81 TT500, 84-85 IT200, 1W1-25016-11-98   48313 - BLACK - DRUM BRAKE - AXLE ID 17MM - BRG TO BRG 126MM - DRUM ID 160MM - 36 SPOKE - FITS 74-79 YZ250, 74-75 YZ360, 75 MX250, 75 MX400, 76-79 & 81 TT500, 76-79 YZ400, 77-80 IT250, 77-79 IT400, 80 IT425     
                             
1981IT4654V6      F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465   FITS 81-82 IT465        The backing plate measures approximately 6.875" across. The pads measure approximately 5.865" across. The axle diameter is 20mm.   FITS 81-82 IT250 IT465 34R00 38MM FORK TUBES UPPER FITS 80 YZ250 YZ465, 81-82 IT465
1982IT4654V6      F8T00 FITS 75-78 DT400, 75 MX400, 76-79 YZ400, 80-81 YZ465, 77-79 IT 400, 80 IT425, 81-82 IT465   FITS 81-82 IT465            FITS 81-82 IT250 IT465 34R00 38MM FORK TUBES UPPER FITS 80 YZ250 YZ465, 81-82 IT465
                             
1983IT49026A       FITS 83-86 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT 250, 83-84 IT490 -63T OD 148.65MM - 18T 52.65MM - Basket thickness 71.91MM - ID 32MM -16 Tines 13.92MM wide - 23XFITS 83-86 YZ250, 84-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 39X-16150-00-00FITS 83-87 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 23X-16351-00-00   F8T206 FITS 83-90 YZ490, 92-83 WR500        23X-00 2-A FITS 83 IT250 YZ490, 83-84 IT490, 83-84 YZ250   
1984IT49026A    MIKUNI 37.5MM ID 3R500  FITS 83-86 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT 250, 83-84 IT490 -63T OD 148.65MM - 18T 52.65MM - Basket thickness 71.91MM - ID 32MM -16 Tines 13.92MM wide - 23XFITS 83-86 YZ250, 84-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 39X-16150-00-00FITS 83-87 YZ250, 83-90 YZ490, 92-93 WR500, 83 IT250, 83-84 IT490, 85-86 YTZ250 23X-16351-00-00    CONVENTIONAL – CHROME OD 43MM – C/L 36 1/8” - DRUM BRAKE – AXLE OD 15MM & 20MM       23X-00 2-A FITS 83 IT250 YZ490, 83-84 IT490, 83-84 YZ250