Parts Now Pay Later with
Log In Cart
Log In
Create An Account
Log In Cart
Your Cart Is Empty
Cart Total
Edit Your Cart Checkout
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.

Shipping Policy

Honda 2012-2015 Honda Civic Si 6th Gear Package: .647 Ratio
Part Number: 9THCIVIC-6TH

Honda 2012-2015 Honda Civic Si 6th Gear Package: .647 Ratio-A1
Images may be for reference only

Honda 2012-2015 Honda Civic Si 6th Gear Package: .647 Ratio
Part Number: 9THCIVIC-6TH

Be the first to review!
$246.99

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 494 reward points. Learn More

This product is currently out of stock for an extended period of time and Honda has not provided a date when it will be available.

Enter your email address to be notified when it is in stock.

Product Details

Part Number: 9THCIVIC-6TH
Manufacturer: Honda

Tired of having those high cruising rpms? This combo package will help alleviate your issue.

All the parts are brand new from Honda. The parts are from a 2012-2015 Honda Civic Si with a gear ratio of .647.

Includes

  • Mainshaft 6th
  • Countershaft 6th
  • Needle Bearing
  • Single Cone Synchro

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

Vehicle Fitment

Acura RSX
2002 Acura RSX Manual 2003 Acura RSX Manual 2004 Acura RSX Manual 2005 Acura RSX Manual 2006 Acura RSX Manual
2002 Acura RSX Type-S 2003 Acura RSX Type-S 2004 Acura RSX Type-S 2005 Acura RSX Type-S 2006 Acura RSX Type-S
Honda Civic
2012 Honda Civic Si Coupe 2013 Honda Civic Si Coupe 2014 Honda Civic Si Coupe 2015 Honda Civic Si Coupe
2002 Honda Civic Si Hatchback 2003 Honda Civic Si Hatchback 2004 Honda Civic Si Hatchback 2005 Honda Civic Si Hatchback
2012 Honda Civic Si Sedan 2013 Honda Civic Si Sedan 2014 Honda Civic Si Sedan 2015 Honda Civic Si Sedan

Reviews ★★★★★ ★★★★★

No Reviews Yet!

Write a Review

Also Bought

SynchroTech 02-04 RSX Type-S Carbon Rebuild Kit
$472.45
SynchroTech 02-04 RSX Type-S Carbon Rebuild Kit
K-Tuned Coolant Recirculation Hose (Under Manifold)
$35.99
K-Tuned Coolant Recirculation Hose (Under Manifold)
Honda K-Series 4.7 Final Drive Set
$629.45
Honda K-Series 4.7 Final Drive Set
MFactory K Series Helical Limited Slip Differential
$734.95
MFactory K Series Helical Limited Slip Differential
Acuity Instruments Transmission Performance Spring Upgrade
$26.00
Acuity Instruments Transmission Performance Spring Upgrade
SynchroTech K Series Hub 3-4 K20 6 Speed
$52.50
SynchroTech K Series Hub 3-4 K20 6 Speed
Competition Clutch K-Series Stage 2 Clutch Kit
$479.99
Competition Clutch K-Series Stage 2 Clutch Kit
K-Tuned K-Series Clutch Line Kit
$89.99
K-Tuned K-Series Clutch Line Kit
K-Tuned K-Series Slave Cylinder
$67.49
K-Tuned K-Series Slave Cylinder
K-Tuned 02-06 RSX Type-S Oil Cooler Hoses
$35.99
K-Tuned 02-06 RSX Type-S Oil Cooler Hoses
Honda VTEC Solenoid Gasket
$6.16
Honda VTEC Solenoid Gasket
Synchrotech 02-04 RSX Type S Carbon Master Rebuild Kit
$734.95
Synchrotech 02-04 RSX Type S Carbon Master Rebuild Kit

Free Shipping

K Series Parts offers free shipping for the majority of items that we sell that are shipped inside the continental United States.

Free shipping is done by the most cost effective shipping method for each order and delivery can takes 3 to 5 days on average.

Faster express shipping is available for an additional charge and calculated at checkout or on the edit basket page.

Certain products are not included in the free shipping, shipped via truck freight, or fulfilled by an outside supplier.

Alaska, Hawaii, and international orders are charged shipping and it is calculated by the website at checkout or on the edit basket page.

Instant Discount

Add this item to your cart to get an instant discount!

Not Available for Pickup

This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.