{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

USA Standard Gear®
ZMZFS6-K1 Manual Transmission Synchro Key, Sold individually

Tap image and pinch to zoom.
$9.99
Manufacturer #ZMZFS6-K1
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Quantity Sold:
Sold individually
Warranty:
1 year USA Standard Gear limited warranty

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1999-2003 Ford F-250 Super Duty
Lariat
8 Cyl 7.3L
RWD, Manual Transmission, 6-Speed, transmissionmfrcode : S6-650
1999-2003 Ford F-250 Super Duty
XL
8 Cyl 7.3L
4WD, Manual Transmission, 6-Speed, transmissionmfrcode : S6-650
1999-2003 Ford F-250 Super Duty
XLT
8 Cyl 7.3L
RWD, Manual Transmission, 6-Speed, transmissionmfrcode : S6-650
1999-2003 Ford F-350 Super Duty
Lariat
8 Cyl 7.3L
RWD, Manual Transmission, 6-Speed, transmissionmfrcode : S6-650
1999-2003 Ford F-350 Super Duty
XL
8 Cyl 7.3L
RWD, Manual Transmission, 6-Speed, transmissionmfrcode : S6-650
Page 1 of 25 | Showing 1 - 5 of 122 results

Product Information

USA STANDARD GEAR MANUAL TRANSMISSION SYNCHRO KEY

Restore your transmission to optimum working order using USA Standard Gear’s Manual Transmission Synchro Key. It is carefully engineered and inspected for guaranteed quality, fitment and functionality.

  • Meets stringent OE standards
  • Carefully engineered and inspected for guaranteed quality
  • Application-specific for exact fitment
  • Approved by rebuilding professionals

As one of the manufacturers of high-quality drive train products, it’s no secret why mechanics and enthusiasts turn to USA Standard Gear when it’s time for a rebuild.

Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

In the Garage with CarParts.com

Product Q&A

Customer Reviews