Mechanic Surplus
0 View Cart
  • Log Into Your Account

    Log Into Your Account

    Forgot Password?
    or log in with:
    Apple Facebook Google Microsoft

    Create An Account

    Email Signup

    By clicking 'Create Account' you agree to our Privacy Policy and Terms of Use.

    Already have an Account?

  • Home
  • About Us
  • How To Order
  • Shipping Methods
  • Contact
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
  • Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm
Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm Niche Big Bore Top End Gasket Kit For Honda Sportrax 450 Trx450r Crf450r Crf450x Magna 750 Cbr600f3 12191-hp1-601 99mm

$21.49 USD





- or -




Description:

Compatible with OEM Base Gasket: Honda 12191-HP1-601; Head Gasket: Honda 12251-MEY-671, Head Cover Gasket: Honda 12391-MEB-670, O-Ring: 91373-733-003. Compatible with Honda CBR600F3: 1997-1998, CBR600SJ: 1996-1998, CRF450R: 2002-2008, CRF450X: 2005-2017. Compatible with Honda Hornet 599: 2004-2006, Magna 750 Deluxe: 1995-1996, Magna 750: 1994-2003. Compatible with Honda Super Sport 600: 1991-1996, TRX450 R 2X4: 2004-2009, TRX450 R ES 2X4: 2006-2014. Big Bore Gasket Bore Size 99mm; Base Gasket Thickness 0.2mm; Compression 15 MPa; Head Gasket Thickness 0.9mm; Compression 15 MPa.

Other fine products

  • Niche Big Bore Cylinder Gasket Kit For Honda Trx450r 2006-2014 12191-hp1-601 12251-mey-671 12391-meb-670 99mm
    $165.49
    Niche Big Bore Cylinder Gasket Kit For Honda Trx450r 2006-2014 12191-hp1-601 12251-mey-671 12391-meb-670 99mm
    View
  • Niche Big Bore Piston Gasket Kit For Honda Trx450r 2006-2014 12191-hp1-601 12251-mey-671 12391-meb-670 99mm
    $96.49
    Niche Big Bore Piston Gasket Kit For Honda Trx450r 2006-2014 12191-hp1-601 12251-mey-671 12391-meb-670 99mm
    View
  • Niche Big Bore Top End Gasket Kit For Honda Pioneer 700 520 1000 Foreman 500 Crf250r Crf450r 12191-hr6-b01 97 5mm
    $23.49
    Niche Big Bore Top End Gasket Kit For Honda Pioneer 700 520 1000 Foreman 500 Crf250r Crf450r 12191-hr6-b01 97 5mm
    View
  • Niche Big Bore Top End Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hn6-000 69 5mm
    $24.49
    Niche Big Bore Top End Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hn6-000 69 5mm
    View
  • Niche Big Bore Cylinder Piston Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 69 5mm
    $95.49
    Niche Big Bore Cylinder Piston Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 69 5mm
    View
  • Niche Big Bore Top End Gasket Kit For Honda Foreman Rubicon 500 Trx500fa Trx500fga 12251-hn2-003 12191-hn2-000 93mm
    $23.49
    Niche Big Bore Top End Gasket Kit For Honda Foreman Rubicon 500 Trx500fa Trx500fga 12251-hn2-003 12191-hn2-000 93mm
    View
  • Niche Big Bore Piston For Honda Trx450 R Es 2x4 13101-hp1-600 2006-2014 99mm
    $59.49
    Niche Big Bore Piston For Honda Trx450 R Es 2x4 13101-hp1-600 2006-2014 99mm
    View
  • Niche Big Bore 69 5mm Cylinder Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hm8-000
    $81.49
    Niche Big Bore 69 5mm Cylinder Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hm8-000
    View
  • Niche Big Bore Piston Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hn6-000 69 5mm
    $53.49
    Niche Big Bore Piston Gasket Kit For Honda Recon Sportrax 250 Trx250x 12191-hm8-000 12251-hn6-000 69 5mm
    View

Recently Viewed

  • Httmt Chrome 7 8 22mm Aluminum Handlebar Clamp Riser Lift Universal For Atv Dirt Bike
    $32.49
    Httmt Chrome 7 8 22mm Aluminum Handlebar Clamp Riser Lift Universal For Atv Dirt Bike
    View
  • Ipick Image Real Black Carbon Fiber Chrome Metal Case Key Chain Official Licensed For Cadillac V Logo
    $38.49
    Ipick Image Real Black Carbon Fiber Chrome Metal Case Key Chain Official Licensed For Cadillac V Logo
    View
  • Satco Led Par30s Lamp 8 5w 75w Equivalent 3000k Soft White 90 Cri 40a Beam Angle Dimmable Medium Base 120v Clear Finish A Part
    $93.49
    Satco Led Par30s Lamp 8 5w 75w Equivalent 3000k Soft White 90 Cri 40a Beam Angle Dimmable Medium Base 120v Clear Finish A Part
    View
  • Ford F-150 2015 To 2020 With Sensor Custom Fit Silver Reflective Bubble Roll-up Auto Windshield Sun Shade
    $74.49
    Ford F-150 2015 To 2020 With Sensor Custom Fit Silver Reflective Bubble Roll-up Auto Windshield Sun Shade
    View
  • Caltric Ignition Key Switch For Kawasaki Bayou 300 Klf300 1989 1990
    $18.49
    Caltric Ignition Key Switch For Kawasaki Bayou 300 Klf300 1989 1990
    View
  • Dnj Tbt157 Timing Belt Tensioner For 1997-2007 Mitsubishi Lancer Mirage 1 8l 2 0l L4 Sohc 16v 112cid 122cid 1999cc 2000cc
    $45.49
    Dnj Tbt157 Timing Belt Tensioner For 1997-2007 Mitsubishi Lancer Mirage 1 8l 2 0l L4 Sohc 16v 112cid 122cid 1999cc 2000cc
    View
  • Chrome Lug Bolts 60 Degree 14 For Dune Buggy
    $25.49
    Chrome Lug Bolts 60 Degree 14 For Dune Buggy
    View
  • K641650 Rear Left Lower Rearward Control Arm Fit For Chrysler 300 Dodge Challenger Charger
    $43.49
    K641650 Rear Left Lower Rearward Control Arm Fit For Chrysler 300 Dodge Challenger Charger
    View
  • 25974714 12451497 15295258 96477909 1s12377 Psw149 Replacement Power Seat Switch Fit For Buick Regals 2011 2012 2013 2014 2015
    $30.49
    25974714 12451497 15295258 96477909 1s12377 Psw149 Replacement Power Seat Switch Fit For Buick Regals 2011 2012 2013 2014 2015
    View

Collections

  • Air Conditioning & Comfort
  • Air Filter
  • Air Intake
  • Batteries, Charging, & Starters
  • Brackets
  • Brakes & Traction
  • Carburetors
  • Electrical
  • Electronics
  • Exhaust & Emission Control
  • Garage Gear
  • Gaskets
  • Grills
  • Halo Lights
  • Hats
  • Ignition
  • Key Fobs
  • Lighting
  • Paint Supplies
  • Polishers
  • Solenoids
  • Stators
  • Tie Rods
  • Truck & Towing
  • Turbine
  • Valve Caps

Quick Links

  • Disclaimer
  • Privacy Policy
  • Terms of Service

Customer

  • Return and Refund Policy
  • Payment Methods
  • Shipping Methods
  • Sales Tax

Contact Us

  • Send Message
Administrative Address
1525 S Higley Rd Ste 104
Gilbert, AZ 85296
(877) 367-3167
  • American Express
  • Discover
  • Visa
  • Mastercard
  • PayPal

© 2026 Mechanic Surplus. All Rights Reserved. .

Product Added to Cart