Yamaha WR450F 2021 Thermo Unit

Stock #849

Removed from a WR450F 2021 Yamaha model.

Used part with signs of wear and use if any as shown.

Yamaha Part No: 
4P9-83591-00

May suit:

• YAMAHA - 2024

  • MT09TRASP2R (TRACER GT PLUS - ELECTRICAL 2
  • XTZ690 - ELECTRICAL 2

• YAMAHA - 2023

  • MT07HOAP (MTN690P - ELECTRICAL 2
  • MT07LAP (MTN660P - ELECTRICAL 2
  • MT09AP (MTN890P - ELECTRICAL 2
  • MT09TRASPP (MTT890DP - ELECTRICAL 2
  • MT10AP (MTN1000P - ELECTRICAL 1
  • MT10ASPP (MTN1000DP - ELECTRICAL 1
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP560D - CYLINDER
  • XSR700AP (MTM660P - ELECTRICAL 2
  • XTZ690 - ELECTRICAL 2
  • YZ250FP (BLACK - ELECTRICAL 1
  • YZ250FP (BLUE - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1MP (YZF1000DP - ELECTRICAL 1
  • YZF-R1P (YZF1000P - ELECTRICAL 1

• YAMAHA - 2022

  • MT07HOAN (MTN690N - ELECTRICAL 2
  • MT07LAN (MTN660N - ELECTRICAL 2
  • MT09AN (MTN890N - ELECTRICAL 2
  • MT09ASPN (MTN890DN - ELECTRICAL 2
  • MT09TRAPN (MTT850PN - ELECTRICAL 2
  • MT09TRASPN (MTT890DN - ELECTRICAL 2
  • MT10AN (MTN1000N - ELECTRICAL 1
  • MT10ASPN (MTN1000DN - ELECTRICAL 1
  • MXT850D - ELECTRICAL 2
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP560D - CYLINDER
  • XSR700AN (MTM660N) - ELECTRICAL 2
  • XSR900AN (MTM890N - ELECTRICAL 2
  • XTZ690 - ELECTRICAL 2
  • YFM450FWB - ELECTRICAL 1
  • YFM450FWBD - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FSP - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FSP - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1MN (YZF1000DN - ELECTRICAL 1
  • YZF-R1N (BLUEBLACK) (YZF1000N - ELECTRICAL 1
  • YZF-R1N (WHITE) (YZF1000N - ELECTRICAL 1
  • YZF-R7AN (BLUE/BLACK) (YZF660N LAMS - ELECTRICAL 2
  • YZF-R7AN (WHITE) (YZF660N LAMS - ELECTRICAL 2
  • YZF-R7N (BLUE/BLACK) (YZF690N - ELECTRICAL 2
  • YZF-R7N (WHITE) (YZF690N - ELECTRICAL 2

• YAMAHA - 2021

  • MT07HOAM (MTN690M - ELECTRICAL 2
  • MT07LAM (MTN660M - ELECTRICAL 2
  • MT09ASPM (MTN890DM - ELECTRICAL 2
  • MT09TRAPM (MTT850PM - ELECTRICAL 2
  • MT09TRASPM (MTT890DM - ELECTRICAL 2
  • MT10AM (MTN1000M - ELECTRICAL 1
  • MT10ASPM (MTN1000DM - ELECTRICAL 1
  • MXT850D - ELECTRICAL 2
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP560E - CYLINDER
  • XSR700AM (MTM660M - ELECTRICAL 2
  • XSR900AM (MTM850M - ELECTRICAL 2
  • XSR900ASPM (MTM850M - ELECTRICAL 2
  • XVS950CUD - ELECTRICAL 1
  • YFM450FWB - ELECTRICAL 1
  • YFM450KPS - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FSE - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1M (YZF1000M - ELECTRICAL 1
  • YZF-R1MM (YZF1000DM - ELECTRICAL 1

• YAMAHA - 2020

  • MT07HOL (MTN690AL - ELECTRICAL 2
  • MT07LAL LAMS ABS (MTN660AL - ELECTRICAL 2
  • MT09AASPL (MTN850DL - ELECTRICAL 2
  • MT09ASPL (MTN850DL - ELECTRICAL 2
  • MT09TRAL (MTT850L - ELECTRICAL 2
  • MT09TRAL (MTT850L (MT09 TRACER) - ELECTRICAL 2
  • MT09TRAPL (MTT850PL - ELECTRICAL 2
  • MT09TRASPL (MTT850DL - ELECTRICAL 2
  • MT10AL (MTN1000AL - ELECTRICAL 1
  • MT10AL (MTN1000AL (MT10) - ELECTRICAL 1
  • MT10AL (MTN1000L - ELECTRICAL 1
  • MT10ASPL (MTN1000DL - ELECTRICAL 1
  • MXT850D - ELECTRICAL 2
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP560E - CYLINDER
  • XSR700AL (MTM660L - ELECTRICAL 2
  • XSR900AL (MTM850L - ELECTRICAL 2
  • YFM450FWB (KODIAK 450) - ELECTRICAL 1
  • YFM450FWBD (KODIAK 450) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1L (YZF1000L - ELECTRICAL 1
  • YZF-R1ML (YZF1000DL - ELECTRICAL 1

• YAMAHA - 2019

  • MT07HOK (MTN690AK - ELECTRICAL 2
  • MT07HOK (MTN690AK (MT07 HO MODEL) - ELECTRICAL 2
  • MT07LAK LAMS ABS (MTN660AK - ELECTRICAL 2
  • MT09AK (MTN850AK - ELECTRICAL 2
  • MT09ASPK (MTN850DK - ELECTRICAL 2
  • MT09TRAK (MTT850K - ELECTRICAL 2
  • MT09TRAK (MTT850K (MT09 TRACER) - ELECTRICAL 2
  • MT09TRAPK (MTT850PK - ELECTRICAL 2
  • MT09TRASPK (MTT850DK - ELECTRICAL 2
  • MT10AK (MTN1000K - ELECTRICAL 1
  • MT10AK (MTN1000K (MT10) - ELECTRICAL 1
  • MT10ASPK (MTN1000DK - ELECTRICAL 1
  • MTM660 (XSR700) - ELECTRICAL 2
  • MTN850D (MT09) - ELECTRICAL 2
  • MTN1000 - ELECTRICAL 1
  • MTN1000D (MT10) - ELECTRICAL 1
  • MTT850 - ELECTRICAL 2
  • MTT850D - ELECTRICAL 2
  • MTT850D (MT09 TRACER) - ELECTRICAL 2
  • MTT850P - ELECTRICAL 2
  • MTT850P (MT09 TRACER) - ELECTRICAL 2
  • MXT850 - ELECTRICAL 2
  • MXT850D - ELECTRICAL 2
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP530A - CYLINDER
  • XSR700AK (MTM660K - ELECTRICAL 2
  • XSR900AK (MTM850K - ELECTRICAL 2
  • XSR900AK (MTM850K (XSR900) - ELECTRICAL 2
  • XVS950CU (BOLT) - ELECTRICAL 1
  • XVS950CUD - ELECTRICAL 1
  • YFM450FWB - ELECTRICAL 1
  • YFM450FWB (KODIAK 450) - ELECTRICAL 1
  • YFM450FWBD - ELECTRICAL 1
  • YFM450FWBD (KODIAK 450) - ELECTRICAL 1
  • YXE850E - ELECTRICAL 1
  • YXE850EN - ELECTRICAL 1
  • YXE850EN (WOLVERINE) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1 - ELECTRICAL 1
  • YZF-R1M - ELECTRICAL 1

• YAMAHA - 2018

  • MT07HOJ (MTN690AJ (HO MODEL NON LAMS) - ELECTRICAL 2
  • MT07LAJ LAMS ABS (MTN660AJ - ELECTRICAL 2
  • MT07LAJ LAMS ABS (MTN660AJ (LAMS EDITION) - ELECTRICAL 2
  • MT09AJ (MTN850AJ - ELECTRICAL 2
  • MT09AJ (MTN850-AJ (MT09) - ELECTRICAL 2
  • MT09ASPJ (MTN850DJ - ELECTRICAL 2
  • MT09SP (MTN850DJ - ELECTRICAL 2
  • MT09SP (MTN850DJ (MT09) - ELECTRICAL 2
  • MT09TRAJ (MTT850J - ELECTRICAL 2
  • MT09TRAJ (MTT850J (MT09 TRACER) - ELECTRICAL 2
  • MT09TRASPJ (MTT09DK - ELECTRICAL 2
  • MT09TRASPJ (MTT850DJ - ELECTRICAL 2
  • MT10AJ (MTN1000J - ELECTRICAL 1
  • MT10AJ (MTN1000J (MT10) - ELECTRICAL 1
  • MT10ASPJ (MTN1000DJ - ELECTRICAL 1
  • MT10ASPJ (MTN1000J - ELECTRICAL 1
  • MT10ASPJ (MTN1000J (MT10) - ELECTRICAL 1
  • MTT09DK (TRACER - ELECTRICAL 2
  • MXT850 - ELECTRICAL 2
  • SR400 - ELECTRICAL 1
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP530A - CYLINDER
  • XSR700AJ (MTM660J - ELECTRICAL 2
  • XSR700AJ (MTM660J (XSR700) - ELECTRICAL 2
  • XSR900AJ (MTM850J - ELECTRICAL 2
  • XSR900AJ (MTM850J (XSR900) - ELECTRICAL 2
  • XVS950CU - ELECTRICAL 1
  • XVS950CU (BOLT) - ELECTRICAL 1
  • XVS950CUD - ELECTRICAL 1
  • XVS950CUD (BOLT) - ELECTRICAL 1
  • YFM450FWB - ELECTRICAL 1
  • YFM450FWB (KODIAK 450) - ELECTRICAL 1
  • YFM450FWBD - ELECTRICAL 1
  • YFM450FWBD (KODIAK 450) - ELECTRICAL 1
  • YXF850P - ELECTRICAL 1
  • YXF850P (WOLVERINE X4) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1 - ELECTRICAL 1
  • YZF-R1M - ELECTRICAL 1

• YAMAHA - 2017

  • MT07HO - ELECTRICAL 2
  • MT07HO (HO MODEL NON LAMS) - ELECTRICAL 2
  • MT07LAH LAMS AB - ELECTRICAL 2
  • MT09AH (MTN850AH - ELECTRICAL 2
  • MT09AH (MTN850-AH (MT09) - ELECTRICAL 2
  • MT09TRAH (TRACER - ELECTRICAL 2
  • MT09TRAH (TRACER (MT09 TRACER) - ELECTRICAL 2
  • MT10AH (MTN1000H - ELECTRICAL 1
  • MT10AH (MTN1000H (MT10) - ELECTRICAL 1
  • MT10ASPH (MTN1000DH - ELECTRICAL 1
  • MT10ASPH (MTN1000DH (MT10) - ELECTRICAL 1
  • MTT660LA (TRACER 660) - ELECTRICAL 2
  • SR400 - ELECTRICAL 1
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XP530A - CYLINDER
  • XSR700AH (MTM660H - ELECTRICAL 2
  • XSR700AH (MTM660H (XSR700) - ELECTRICAL 2
  • XSR900AH (MTM850H - ELECTRICAL 2
  • XSR900AH (MTM850H (XSR900) - ELECTRICAL 2
  • XVS950CU - ELECTRICAL 1
  • XVS950CU (BOLT) - ELECTRICAL 1
  • XVS950CUD - ELECTRICAL 1
  • XVS950CUD (BOLT) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1 - ELECTRICAL 1
  • YZF-R1M - ELECTRICAL 1

• YAMAHA - 2016

  • MT07HO - ELECTRICAL 2
  • MT07HO (HO MODEL NON LAMS) - ELECTRICAL 2
  • MT07HOG - ELECTRICAL 2
  • MT07HOG (HO MODEL NON LAMS) - ELECTRICAL 2
  • MT07LAG2 LAMS AB - ELECTRICAL 2
  • MT07LAG LAMS AB - ELECTRICAL 2
  • MT09 - ELECTRICAL 2
  • MT09A - ELECTRICAL 2
  • MT09A (MT09) - ELECTRICAL 2
  • MT09TRAG (TRACER - ELECTRICAL 2
  • MT09TRAG (TRACER (MT09 TRACER) - ELECTRICAL 2
  • MT09TRPG POLIC - ELECTRICAL 2
  • MT10AG (MTN1000G - ELECTRICAL 1
  • MT10AG (MTN1000G (MT10) - ELECTRICAL 1
  • SR400G (60TH YELLOW - ELECTRICAL 1
  • WR250F - ELECTRICAL 1
  • WR250FSE - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • WR450FSEG (YELLOW - ELECTRICAL 1
  • XSR700AG (MTM660G - ELECTRICAL 2
  • XSR700AG (MTM660G (XSR700) - ELECTRICAL 2
  • XSR900AG (MTM850G - ELECTRICAL 2
  • XSR900AG (MTM850G (XSR900) - ELECTRICAL 2
  • XVS950A - ELECTRICAL 1
  • XVS950CR - ELECTRICAL 1
  • XVS950CU - ELECTRICAL 1
  • XVS950CU (BOLT) - ELECTRICAL 1
  • XVS950CUSP - ELECTRICAL 1
  • XVS950CUSP (BOLT R-SPEC) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FSE - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZ450FSEG (YELLOW - ELECTRICAL 1
  • YZ450FX - ELECTRICAL 1
  • YZF-R1 - ELECTRICAL 1
  • YZF-R1M - ELECTRICAL 1
  • YZF-R1SPG (YELLOW - ELECTRICAL 1
  • YZF-R1SPG (YELLOW (ROSSI 46 SPECIAL) - ELECTRICAL 1

• YAMAHA - 2015

  • MT07HO - ELECTRICAL 2
  • MT07HO (HO MODEL NON LAMS) - ELECTRICAL 2
  • MT07LAF LAMS AB - ELECTRICAL 2
  • MT09 - ELECTRICAL 2
  • MT09A - ELECTRICAL 2
  • MT09A (MT09) - ELECTRICAL 2
  • MT09TRAF (TRACER - ELECTRICAL 2
  • MT09TRAF (TRACER (MT09 TRACER) - ELECTRICAL 2
  • SR400 - ELECTRICAL 1
  • WR250F - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XVS950A - ELECTRICAL 1
  • XVS950CR - ELECTRICAL 1
  • XVS950CU - ELECTRICAL 1
  • XVS950CU (BOLT) - ELECTRICAL 1
  • XVS950CUSP - ELECTRICAL 1
  • XVS950CUSP (BOLT R-SPEC) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ250FX - ELECTRICAL 1
  • YZ250FX (YZ250F CROSS COUNTRY) - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1
  • YZF-R1 - ELECTRICAL 1
  • YZF-R1MF S - ELECTRICAL 1

• YAMAHA - 2014

  • MT07 - ELECTRICAL 2
  • MT09E (STD GREY - ELECTRICAL 2
  • MT09E (STD GREY (MT09) - ELECTRICAL 2
  • MT09RE (RACING BLUE - ELECTRICAL 2
  • MT09RE (RACING BLUE (MT09) - ELECTRICAL 2
  • MT09SPE (SPECIAL ORANGE - ELECTRICAL 2
  • SR400 - ELECTRICAL 1
  • WR450F - ELECTRICAL 1
  • XVS950A - ELECTRICAL 1
  • XVS950CUE BOL - ELECTRICAL 1
  • XVS950CUE BOL (BOLT) - ELECTRICAL 1
  • XVS950CUSPE BOLT R-SPE - ELECTRICAL 1
  • XVS950CUSPE BOLT R-SPE (BOLT R-SPEC) - ELECTRICAL 1
  • YZ250F - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1

• YAMAHA - 2013

  • WR450F - ELECTRICAL 1
  • XVS950A - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1

• YAMAHA - 2012

  • WR450F - ELECTRICAL 1
  • XVS950A - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1

• YAMAHA - 2011

  • XC125EA (VITY - ELECTRICAL 1
  • XC125EA (VITY (VITY) - ELECTRICAL 1
  • XVS950A - ELECTRICAL 1
  • YZ450F - ELECTRICAL 1

• YAMAHA - 2010

  • XVS950A - ELECTRICAL 1
  • YW12 (BWS 125) - CYLINDER
  • YZ450F - ELECTRICAL 1

• YAMAHA - 2009

  • XVS950AY (BLACK - ELECTRICAL 1
  • XVS950AY (RED OR BLUE - ELECTRICAL 1

• YAMAHA - 2008

  • NXC125 (CYGNUS) - ELECTRICAL 1

• YAMAHA - 2007

  • NXC125 (CYGNUS) - ELECTRICAL 1

WR450F 2021+

Possibly YZ250/450F models.

May suit other models.

Parts compatibility given is a guide only and may suit other models. Please check part number for fitment to your bike before purchasing.

International customers are to pay import duties if any. Please refer to your relevant authorities for more information.