Valve Lash Adjusting Wrench Set [1/2 in. Wrench, 1/8 in. and 3/16 in. T-Handles]
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PROFORMPART NUMBER: 778-66778

Valve Lash Adjusting Wrench Set [1/2 in. Wrench, 1/8 in. and 3/16 in. T-Handles]

$3599
6 left in stock
ShippingShips on Oct 26, 2026
Lowest PriceLowest Price Guarantee

Valve Lash Wrench Sets
Valve Lash Adjusting Wrench Set
  • 1/2 in. Lock Nut Wrench
  • 1/8 in. and 3/16 in. T-Handle Allen Wrenches
  • Plastic Comfort Grips
  • Stainless Steel
  • Natural Finish
  • Sold As a Set

    Adjusting valve lash on rockers with set screw poly locks usually takes two hands and two tools fighting each other. With this set the 1/2 in. wrench goes over the lock nut and the T-handle Allen wrench drops through the hole in it, so one hand holds the adjuster while the other locks it down, cutting adjustment time roughly in half.

    Proform 66778 Valve Lash Wrench Set Features:

    • 1/2 in. wrench for the rocker arm lock nut
    • 1/8 in. and 3/16 in. T-handle Allen wrenches for the set screw
    • T-handle drops through the wrench for one-handed adjustment
    • Plastic grips for comfort
    • Stainless steel construction, natural finish
    • Sold as a complete set
    • These simple T-handle and wrench sets make valve lash adjustments a breeze. Just choose the proper size for your application and you are ready to cut your adjusting time in half. Simply position the adjusting handle wrench over the rocker arm lock-down (make sure you have purchased the set with the proper sized wrench), and drop the appropriate T-handle down through the hole in the wrench - with one hand doing the job of two! Then make the lash adjustment with a feeler gauge according to the camshaft manufacturer's specifications.

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      JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.

    Part TypeValve Lash Wrench
    Product LineProform Valve Lash Wrenches
    BrandPROFORM
    Package Height1.5
    Package Width4.9
    Package Length10.5
    Weight0.74 PG
    Part CategoryAccessories
    Valve Adjusting Wrench FinishNatural
    T-Handles IncludedYes
    QuantitySold as a kit
    T-Handle Sizes0.188 in (4.8 mm)
    Valve Adjusting Wrench MaterialStainless steel
    Part FitmentUniversal
    Vendor Part Number66778
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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