NISSAN 12309-61503 Crankshaft Pulley Nut

The genuine NISSAN 12309-61503 crankshaft pulley nut (NUT C/PULLEY) is a critical fastener designed for the axial retention of the crankshaft pulley and harmonic balancer located at the crankshaft snout of internal combustion engines. Its function is to ensure stable positioning and secure fastening of the pulley driving auxiliary front-end components (alternator, power steering pump, A/C compressor) under high torque and dynamic loads. A loose, deformed, or thread-damaged retaining nut can cause pulley runout, severe damage to the keyway and crankshaft snout, as well as failure of the accessory belt drive system; therefore, proper condition and tightening torque in compliance with OEM specifications are essential.

Technical Specifications and Features:

• Part Type: Crankshaft Pulley Nut
• Mounting Location: Engine front face / crankshaft snout
• Material Quality: High-tensile, heat-treated hardened steel with protective surface finish
• Function: Rigid axial clamping of the harmonic balancer and drive pulley

OEM and Interchange References:

• 12309Q4000
• 12309G2400

Vehicle Compatibility List:

• Nissan Atras/Condor (H41) 3.0 [1992 - 1992] (BD30)
• Nissan Cabstar (F24) 3.0 TD [2008 - 2008] (ZD30DDTI)
• Nissan Cabstar (F24M) 3.0 TD [2006 - 2016] (ZD30DDTI)
• Nissan Cedric Sedan (SY31) 2.5 D [1991 - 1995] (TD25)
• Nissan Cedric Sedan (SY31) 2.7 D [1995 - 2002] (TD27)
• Nissan Cedric Sedan (SY31) 3.2 D [2001 - 2001] (QD32)
• Nissan Civilian (W41) 3.0 D [2015 - 2017] (ZD30)
• Nissan Civilian (W41) 4.2 D [1999 - 2015] (TD42)
• Nissan Nissan Truck (D22) [1998 - 2001]
• Nissan Nissan Truck Eg (D22G) [2009 - 2013]
• Nissan Np300 F/Sbs (D22SS) [2009 - 2011]
• Nissan Np300 F/Sbs (D22SSS) 2.7 D [2018 - 2018] (TD27)
• Nissan Np300 F/Sbs (D22SSS) 3.2 D [2018 - 2018] (QD32)
• Nissan Nt-500 (G40M) [2013 - 2014]
• Nissan Nt400 Cabstar (F24F) [2009 - 2011]
• Nissan Nt400 Cabstar (F24FF) 3.0 TD [2017 - 2017] (ZD30DDTI)
• Nissan Patrol (Y61) 3.0 TD [2000 - 2016] (ZD30DDTI)
• Nissan Patrol (Y61) 4.2 D [1997 - 2016] (TD42)
• Nissan Pickup (D21) 2.5 D [1985 - 1987] (SD25)
• Nissan Safari Pick Up (TY61) 3.0 TD [2012 - 2016] (ZD30DDTI)
• Nissan Safari Pick Up (TY61) 4.2 D [1999 - 2012] (TD42)
• Nissan Terrano2 (R20) [2002 - 2004]
• Nissan Tk55 (TK3) [2011 - 2011]
• Nissan Urvan (E24) [1996 - 1996]
• Nissan Urvan (E25) 3.0 D [2001 - 2007] (ZD30DD)
• Nissan Urvan (E25) 3.0 TD [2003 - 2007] (ZD30DDTI)
• Nissan Urvan (VE24) 2.7 D [1997 - 1999] (TD27)