This is like the Wheels Manufacturing rear derailleur hanger #25 or Dropout #25. Other part numbers such as #289 or #4 depending on who made them.
Compare yours with the pictures in the listing to confirm fitment. It needs to look exactly the same.
Below is a list I found from somewhere else so it’s only a reference.
DERAILLEUR HANGER 25 WITH MOUNTING BOLTS
DROPOUT 25
Fits many bicycles and popular
Fits:
AccessXCL -
XCL Ultra Fitness -
AvantiAria 1, 2, 3 - 2010
Blade - 2010
Blade 1, 2, 3, 4 - 2010
Bergamont- --
BianchiAdvantage - 1999
Advantage - 2000
Advantage - 2006
Axis - 1999
Bergamo - 2006
Boardwalk - 2000
Boardwalk - 2006
Lynx - 1999
Ocelot - 1999
Osprey - 1999
Sparta - 2006
Superbee - 1999-2000
XC Carbon Mtn. - 2008
BlueT17 - Prior - 2010
XC - 2009
XC Carbon Mtn - 2008
BMCAC01 - 2010-2012
AC02 - 2010-2011
Alpenchallenge - 2012
Four Stroke 01 - 2009
Pro Machine - 2009
Pro Machine Four Stroke 01 - 2008
Pro Machine SLC 01 - 2008
SLC01 - 2009
SLO1 - 2009
STR01 - 2010-2011
STR02 - 2010-2011
BoardmanHybrid Comp Fi - 2010
Junior MTB Sport/e - 2014
MTB Comp - 2007-10
MTB Comp Fi - 2010
MTB Comp FS - 2009-10
MTB Pro - 2007-10
MTB Pro FS - 2009-10
MTB Pro Ltd edition - 2009
MTB Sport - 2009-10
MTB Team - 2007-10
MTB Team FS - 2009-10
Brodie- - -
CarreraSubway 1 -
Cinelli- --
Claud ButlerVarious Claud Butler -
CommencalCanzo - 2010
CubeCity - 2006
Dehli - 2007-2009
Freelite - 2002
Kathmandu - 2009
Litening XC - 2001
Touring - 2007-2009
Town - 2007-2009
Travel - 2009
Trekking - 2007-2009
Trekking Messe - 2009
Cyclewolf- - -
DaBombCherry Bomb - 2006
Mind Bomb - 2006
Molotov 3 -
XLR-8 - 2006
XLR-8R -
DahonVarious - All Years
DawesRoundhouse (mountain) - .
DiamondbackAiren Series - 2010-2015
DB-2 Cross - 2006
Dirt - 2006
Goat - 2008
MISSION 1 - 2008-2009
MISSION 2 - 2008-2009
MISSION 3 - 2008-2009
Mission Series - 2007-2009
Scapegoat - 2009-2011
Sherwood Pro/Sport Adv/Sport/XC DA/Basic Trekking - 2006
Sortie - 2008
SORTIE 26 1 - 2008-2009
SORTIE 26 2 - 2008-2009
SORTIE 26 3 - 2008-2009
SORTIE BLACK - 2009
Sortie Series - 2007-2009
Wildwood Pro/Sport DA - 2006
XC - 2006
XC DA - 2006
Falcon- -
Felt24 - 2011
Q24 - 2012 and earlier
Verza City 3 - 2011
FocusBlack Nails - 2011
Black Raider - 2011
Highland Peak - 2011
FramedMinnesota 1.0 - 2014
FRW. - .
FujiAddy - 2011
Bullit - 2004
Mt Fuji - 2004-2006
Nevada - 2005
Nevada - 2008-2009
Outland - 2004-2005
Police - 2009
Police Special - 2010
Police Special - 2005-2007
Suncrest - 2004
Sunfire - 2005
Sunfire* - 2011
Tahoe - 2004-2011
Team Issue - 2005-2006
Thrill - 2008
Thrill - 2004-2005
Traverse 1.6 - 2016
Yucatan - Pre - 2000
GhostAMR Alu - 2006-2009
AMR Lector - 2008-2009
AMR Plus / LT Alu - 2008-2009
AMR Plus, Lector - 2009
ASX - 2007, 2009-2013
ASX Plus - 2010-2011
Dual Team - 2006-2007
ERT - 2006-2009
FR Northshore - 2003-2009
HTX Actinum - 2007-2009
HTX Alu - 2001-2007
Miss AMR - 2008-2009
Miss Hardball 5700 - 2006-2007
Miss RT - 2004-2014
Panamao (2, 3) - 2015
RT Actinum - 2007-2010
RT Alu - 2003-2007
RT Dual - 2004-2007
RT Lector - 2008-2010
RT Scandium - 2006
TR (inc. Lady) 1100-1800, EBS - 2014
TR (inc. Lady) 1300-1800 - 2008-2013
GRAVITYAvenue FXD - 2017
FSX 1.0 - 2012
POINT 4 - 2012
HaroFL 29 Comp - 2013
FL 29 Expert - 2013
FL Comp - 2013
FL2, Comp, Sport, Trail, 29 - 2012
Gomez - 2010-2011
Werks - 2000
Werks DSR - 2001
HasaComp SL - 2009-2010
Comp SLD, EX, EXD - 2009
Race 7.0, 9.0 - 2010
XC 1 - 2009-2010
XC-1D, XC-2. XC-2D - 2009
IbexAsta - 2007
IronHorseMaverick Comp - 2006
Maverick Disc - 2005
Maverick Team - 2005-2006
Rogue Team - 2003
Sinister 6.1 - 2011
Sinister 6.2 - 2011
Sinister 6.3 - 2011
Sinister 6.5 - 2011
Warrior - 2003
Warrior Comp - 2004
Warrior Disc - 2003
Warrior Expert - 2004
Warrior Sport - 2004
JeepCherokee Sport -
Grand Cherokee -
Laredo -
Liberty LTD -
Many Jeep Bicycle Models -
K2Aggro HT - 2000
Razorback HT - 1999
Razorback HT - 2000
V - 2000
X - 2000
Zed Se - 2000
KHSAlite 2000 - 2004
Alite 3000 - 2009-2010
Alite 4000/Team - 2001
FXT Trail - 2008
Y100 YaYa! - 2003
Kona120 - 2010
120 Deluxe - 2010
120 Supreme - 2010
2+2 - 2011
2+2 - 2012
2+2 DL - 2011
Abra Cadabra - 2011
Aloha - 2002-2003
Aloha Deluxe - 2003
Bear - 2002
Bear Deluxe - 2002
Big Kahuna - 2009
Blast - 2001-2011
Blast - Weinhard - 2002
Blast Deluxe - 2009-2010
Cadabra - 2011
Caldera - 2003-2010
Chute - 2001-2003
Cinder Cone - 2003-2010
Coco - 2014
Coiler - 2004-2006
Coiler Dee-lux - 2004-2005
Coiler Deluxe - 2006
Coiler Primo - 2005
Dawg - 2003-2008
Dawg Dee-Lux - 2003-2005
Dawg Deluxe - 2006-2008
Dawg Primo - 2003-2007
Dawg Supreme - 2006-2008
Dawgma - 2008
Dawgmatic - 2004-2005
Dew - 2004-2010
Dew - 2013-2015
Dew Deluxe - 2005-2009
Dew Deluxe - 2011-2014
Dew Drop - 2009-2010
Dew FS - 2007-2009
Dew Plus - 2008-2011
Dew Plus - 2013-2014
Dr Dew - 2011
Dr Dew - 2004-2009
Dr Dew - 2013-2014
Dudu - 2000-2003
Explosif - 2000-2003
Fire Mountain - 2002-2010
Fire Mountain - 2013-2015
Fire Mountain Deluxe - 2009-2010
Four - 2008
Four Deluxe - 2008
Four Lisa - 2008
Four Lisa Deluxe - 2008
Four Supreme - 2008
Hahanna - 2001-2005
Hei Hei - 2007-2010
Hei Hei 100 - 2010-2011
Hei Hei 2-9 - 2008-2009
Hei Hei 29 - 2011
Hei Hei Supreme - 2007-2010
HEI-HEI 100 - 2012
HH Lisa - 2011
Hoss - 2004-2009
Hoss Deluxe - 2004-2007
Hossmatic - 2009
Howler - 2006
Hula - 2002-2010
Hula - 2013-2015
Jake - 2004-2010
Jake 2-4 - 2006-2007
Jake 2-4 - 2013-2015
Jake The Snake - 2000-2001
Jake The Snake - 2008-2010
Kahuna - 2009
Kahuna - 2001-2003
Kahuna - 2013-2015
Kahuna Deluxe - 2003
Kikapu - 2003-2007
Kikapu Deluxe - 2003-2007
King Ikapu - 2006
King Kahuna - 2009
King Kikapu - 1999-2007
King Supreme - 2006
Kuku - 1999-2000
Kula - 2000
Kula - 2002-2009
Kula 2-4 - 2012-2013
Kula Deluxe - 2004-2007
Kula Gold - 2010
Kula Lisa - 2008-2010
Kula Lisa Deluxe - 2007
Lanai - 2002-2010
Lanai - 2013-2015
Lava Dome - 2003, 2014-2015
Lele - 2012
Leroi - 2006
Lisa - 2010
Lisa 120 - 2009-2010
Lisa 120 Dlx One 20 Series - 2009
Lisa Deluxe - 2010
Lisa DS - 2006-2007
Lisa HT - 2006-2009
Mahuna - 2013-2015
Major Jake - 2001
Makena - 2003-2010
Makena - 2013-2015
Makena Hula - 2007
Manomano - 1999-2002
Minute - 2015
Mohala - 2013-2015
Mokomoko - 1999-2002
Muni-Mula - 2000
Nunu - 2002-2003
One20 - 2009
One20 Deluxe - 2009
One20 Primo - 2009
One20 Supreme - 2009
P.H.D. - 2006-2009
Pahoehoe - 2000-2002
Precept - 2015
Queen Kikapu - 2007
Roast - 2001-2004
Scrap - 2003-2007
Shred - 2004-2010
Shred - 2013-2015
Shred 2-0 - 2007-2010
Shred 2-0 - 2013-2015
Shred 2-4 - 2007-2010
Shred 2-4 - 2013-2015
Splice - 2013-2015
Splice DL - 2014-2015
Stab - 1999-2005
Stab DC - 2002
Stab Dee-Lux - 1999-2000
Stab SE - 2002
Steely - 2012
Stinky - 1998-2005
Stinky 2-4 - 2006-2015
Stinky Dee-Lux - 1999-2005
Stinky Dee-Lux SE - 1999
Stinky Five - 2000-2001
Stinky Jr - 2003
Stinky Jr - 2002-2005
Stinky Primo - 1999-2004
Stinky SE - 1999
Stinky Six - 2001
Stuff - 2002-2010
Stuff 2-4 - 2006
Stuff 2-4 - 2007
Stuff 2-4 - 2008
Stuff Jr - 2004-2005
Tanuki - 2011-2013
Tanuki Deluxe - 2012
Tanuki DL - 2011
Tanuki DL - 2013
Tanuki Supreme - 2012
Taro - 2013-2015
The King - 2004-2007
Tika - 2013-2015
Tiki - 2002-2003
Tiki Deluxe - 2003
Ute - 2008-2010
Ute - 2012-2014
Wo - 2014
LapierreCROSS 300 - 2013-2016
CROSS 300 L - 2013-2015
CROSS 400 - 2013-2016
CROSS 700 - 2013
ICE - 2013
IRON - 2013
ROCK - 2013
ROCK L - 2013
Leader515 - 2005-2008
516 - 2005-2008
Bloodline Illuminati - 2010
LD 526H - 2010
MarinAlpine 29er - 2008-2014
Alpine Trail - 2007-2011
B-17 A-XC - 2004-2007
Bayview SE + DISC - 2010-2014
Bayview Trail Disc - 2013-2014
Bear Valley - 2007-2013
Bear Valley 27.5" - 2014
Bear Valley 27.5" - 2011-2012
Belvedere - 2006-2007
Bobcat Trail (Hardtail / Race) - 2005-2014
Bobcat Trail 29er - 2013-2014
Bolinas 29er - 2011-2014
Bolinas Ridge Disc - 2010-2014
Corte Madera - 2006-2007
Eldridge Grade - 2013
Eldridge Grade - 2007-2009
Fairfax SC (DISC) - 2014
Hawk Hill/SE - 2005-2011
Indian Fire Trail 27.5" - 2014
Indian Fire Trail 29er - 2014
Indian Fire Trial (Hardtail / Race) - 2005-2008
Indian Fire Trial (Hardtail / Race) - 2012-2014
Juniper Trail (Hardtail / Race) - 2007-2011
Juniper Trail (Hardtail / Race) - 2013-2014
Juniper Trail 27.5" - 2014
Lombard - 2010-2012
Madrone - 2008
Nail Trail - 2005-2014
Nail Trail 27.5" - 2014
Nail Trail 29er - 2009-2014
Northside Trail A-XC - 2005-2007
Novato - 2005-2013
Palisades Trail - 2005-2014
Palisades Trail 29er - 2009-2014
Pioneer Trail 29er - 2014
Pioneer Trail Disc - 2010-2014
Point Reyes - 2005-2011
Rocky Ridge A-XC - 2004-2007
San Quentin - 2013
San Quentin - 2010-2011
Sausalito - 2006-2011
Terra Linda - 2014
Toscana - 2009-2011
Wildcat Trail - 2011-2014
Wildcat Trail 24" - 2006-2008
Wildcat Trail A-XC - 2004-2006
MasiKalahari 550/Four/Eight -
MeridaKalahari 550/Four/Eight -
MieleTT650 - 2008
MongooseAll Models - 2000-2001
Fairlane - 2002
Fireball 24 - 2009
Fireball 26 - 2009
Grandmarquis - 2002
Switchback - 2002
Switchback - 2003
SX - 1999
Tek 4 - 2005
Zero G - 2002
MotivGround Pounder - 2008-2011
Motobecane429HT -
527DS - 2016
Next- -
NorcoARI - 2009-2011
ATOMIK - 2009
AXIA - 2004
B-LINE - 2004-2007
Bigfoot - 2014
BIGFOOT - 2004-2011
BLINE - 2008
BUSHPILOT - 2004-2011
CARRERA - 2004-2005
CHAOS - 2004-2007
CHARGER - 2007-2011
EVOLVE - 2007-2008
EXC 1.0 MT - 2005
FAE - 2009-2011
FIREBALL - 2007-2011
FORCE ONE - 2007
IGNITE - 2008
INDIE 1 - 2010-2012
INDIE 2 - 2010-2012
INDIE 3 - 2011-2012
INDIE 4 - 2012
INDIE DROP 1 48 DARK GREEN - 2013
INDIE DROP 2 48 DARK GREY - 2013
JUBEI 1 - 2010-2011
JUBEI 2 - 2010-2011
JUBEI 3 - 2010-2011
KATMANDU - 2004-2005
KATMANDU - 2007-2009
KATMANDU - 2011-2013
KATMANDU 2 - 2006
KOKANEE - 2004
KOKANEE - 2011
KOKANEE - 2007-2009
KOMPRESSOR - 2005-2010
KOSHKA - 2009-2010
MALAHAT - 2004-2008
MANIK - 2004-2010
MIRAGE - 2004
MONTEREY - 2006
MONTEREY - 2009
MOUNTAINEER - 2005
MOUNTAINEER - 2008-2011
MOUNTAINEER 2 - 2006
NAPOLI - 2004-2005
NITRO - 2009-2011
NITRO 6.1, 6.2, 6.3 - 2012
NITRO 6.2 15 MATTE GREY/ORANGE - 2013
NITRO 9.1 15 MATTE WHITE/RED - 2013
NITRO 9.2 15 MATTE GREY/ORANGE - 2013
NITRO HT - 2007
NITRO NINER - 2007
NITRO, NITRO 29ER - 2008
PLATEAU - 2004-2007
RAMPAGE - 2004
RAMPAGE - 2007-2010
RIDEAU - 2004-2007
RIVAL - 2005-2009
ROMA - 2004-2010
RONIN 1, 2 - 2009
RYDE - 2004
SASQUATCH - 2004-2011
SCENE - 2011
SCRAMBLER - 2004-2005
SCRAMBLER - 2007-2010
SCREAMER - 2005
STORM - 2004
STORM - 2007-2011
TACTICK - 2008
TACTIK - 2005
TEAM DH - 2009
TOFINO - 2004
TORRENT - 2004
VERMONT - 2004-2006
VFR 1 - 2010
VFR 1 DISC - 2008-2009
VFR 2 - 2010
VFR 2 DISC - 2008-2009
VFR 2 V-BRAKE - 2008
VFR 3 - 2010
VFR 3 DISC - 2008-2009
VFR 3 V-BRAKE - 2008
VFR 4 DISC - 2008-2009
VFR 4 V-BRAKE - 2008
VFR CROSS - 2008
VFR CROSS 1, 2, 3 - 2009
VFR FORMA - 2010
VIXA - 2009-2010
VPS FLUID 3 - 2004
WOLVERINE - 2004-2013
XFR 1, 2, 3, 4 - 2010-2012
XFR FORMA - 2011-2012
YORKVILLE - 2004-2007
NorthrockXC6 - 2014
NovaraPondo FS - 2003
Pondo FSL - 2003
On OneScandal - 2011
Optima-
Orbea29er - 2008
Compair - 2012
D'ella - 2008
Dakar - 2012
Lanza - 2008
Lanza - 2009
Lanza - 2010
Lanza 29er - 2010
Larza - 2008
Most Aluminum MTB Frames - 2010
Oiz - 2010
S Cape - 2010
Sate - 2012
Satellite - 2012
Scape - 2008
Scape - 2010
Sherpa - 2012
Toubkal - 2012
Tuareg - 2012
Zenit - 2012
PinarelloTreviso - 2010, 2012
Various -
Planet X- -
RedlineD600 - 2012-2013
D610 - 2012-2013
D620 - 2012-2013
D660 - 2009-2012
D680 - 2011-2012
Metro Disc - 2010-2011
Metro Sport - 2011
Metro Sport Disc - 2011
Skookum - 2011
Rocky MountainCDX - 2008
CXR - 2008
CXR Team - 2008
Metro 50 - 2009
RC10, 30, 50 - 2009
Solo - 2009
Solo CX - 2008, 2011
Whistler 10 - 2009
SalsaJuan Solo W/Carbon Stays - 2005
Mamasita - 2008-2010
Moto Rapido - 2005-2009
Moto Rapido W/Carbon Stays - 2005
Mukluk - 2011
Selma - 2009
SamsonCloud Nine -
ScattanteFits many Performance Scattante models -
Schwinn411 24 - 2012
Frontier Disc - 2005-2010
Impact - 2006
Mesa Series - 2003-2009
Protocol 2.0 - 2011
Rocket 2 - ---
Searcher Sport - 2012
Voyageur SLX - 2003-2004
ScottVarious Scott Frames -
Shogun-
TransitionDirtBag v1 - Early
DirtBag v2 - 2007-2008
Preston v1 -
Preston v2 -
TrekBruiser 1 / 2 - 2001-2002
UnivegaDS-700 - 2000
DS-900 - 2000
DS-950 - 2000
HT-550 - 2011
RAM XF-900 - 2011
RAM XF-902 - 2011
Van DesselJersey Devil - 2008-2010
Ramble Tamble - 2008-2010
VoodooCanzo - 2009, 2012
WheelerJunior 200 - -
Pro 19DS - 2010
WilierSolitario MTB - -