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Pilot Jet - Keihin - N424-21 Type - #38 to #55 - Genuine

  • Color/Finish: Natural
  • Material: Brass
  • Dimensions:
    • Length: 28mm
    • Head Diameter: 4.9mm
    • Thread/Body Diameter: 5mm
  • Sizes Available: #38-#55 (Please Select Desired Size Below)
  • OEM Ref: N424-21
  • Fits: Keihin FCR / PJ / PWK / PE / PWM Series Carbs
  • Notes:
    • Sold Individually (Please Select Desired QTY Below)
    • Does Not Fit:
      • Fuel injected models
      • Mikuni equipped models that use BS VM or BSR jets
In stock
Part
N424-21-G
Grouped product items
Product Name Qty
Pilot Jet - Keihin - N424-21 Type - #38 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #40 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #42 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #45 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #48 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #50 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #52 - Genuine
$6.51
Pilot Jet - Keihin - N424-21 Type - #55 - Genuine
$6.51

Pick up those pilot slow jets you need for your Keihin carbs here Genuine Keihin N424-21 type

Sizes Available:

  • #38
  • #40
  • #42
  • #45
  • #48
  • #50
  • #52
  • #55

Carb Family:

  • Keihin FCR
  • Keihin FCR-MX
  • Keihin PJ
  • Keihin PWK
  • Keihin PE
  • Keihin PWM

Does Not Fit Stock:

  • Most Yamaha street models XS650 / XS1100 / RD two strokes and others use Mikuni BS or VM series not Keihin pilots
  • Kawasaki KZ street bikes used Mikuni BS series from the factory
  • Suzuki GS GSX GSF air cooled fours used Mikuni BS or BSR series

Fits the Following Honda Models — Common Applications:

  • XR250R 1981-1990 and 1996-2004 Keihin PD or PE
  • XR400R 1996-2004 Keihin PDK or PE
  • XR600R 1985-2000 dual Keihin or PE 40mm
  • XR650R 2000-2007 Keihin PE 40mm semi flatslide
  • XR650L 1993-present Keihin CV or PD variants
  • CRF250R 2004-2009 Keihin FCR-MX 37
  • CRF250X 2004-2017 Keihin FCR-MX 37
  • CRF450R 2002-2008 Keihin FCR 40
  • CRF450X 2005-2017 Keihin FCR 40

Fits the Following Kawasaki Models (Common Applications):

  • KLR250 1985-2005 Keihin CVK34
  • KLR650 1987-2018 Keihin CVK40
  • KLX250R 1993-1996 Keihin CVK34
  • KLX300R 1997-2007 Keihin CVK34
  • KLX250S or SF 2006-2014 Keihin CVK34
  • KLX650R or KLX650C 1993-1996 Keihin CVK40
  • KL250 Super Sherpa 1997-2010 Keihin CVK34
  • Ninja 250R or EX250 1988-2012 Keihin CVK30
  • Ninja 500R or EX500 1987-2009 Keihin CVK34

Fits the Following Suzuki Models — Common Applications:

  • LT-V700F Twin Peaks 700 4x4 2004-2005 Keihin CVKR-D dual carbs
  • DR-Z400E 2000-2007 Keihin FCR39 slant uses N424-21 for pilot fuel circuit
  • DR-Z400S or SM 2000-2024 various years equipped with Keihin FCR or CVK depending on market
  • RM-Z250 2004-2009 Keihin FCR-MX 37
  • RM-Z450 2005-2007 Keihin FCR 40

Fits the Following KTM Models — Common Applications:

  • 250 SXF 2005-2012 Keihin FCR-MX 37
  • 450 SXF 2003-2012 Keihin FCR-MX 39 or 41
  • 525 SX or MXC or EXC early 2000s Keihin FCR39 slant
  • 250 EXC-F 2007-2016 Keihin FCR-MX 37
  • 450 EXC-F and 500 EXC-F early carb models with Keihin FCR 39 or 41

Is Japanese Universal Part: No

Is European Universal Part: No

Is American Universal Part: No

OEM Number(s): N/A

Motorcycle Fitment: N/A