Filters & Spark Plugs

KT725 Carburetor Tune Up Kit Fits for Kohler 7000 Series 22HP 23HP 24HP 25HP 26HP KT730 KT735 KT740 KT745 Engines Parts Carb Replaces 1685319-S 1685321-S 32-853-63S With Air filter Spark Plug

3.7/5 (4 reviews)
$29.99
KT725 Carburetor Tune Up Kit Fits for Kohler 7000 Series 22HP 23HP 24HP 25HP 26HP KT730 KT735 KT740 KT745 Engines Parts Carb Replaces 1685319-S 1685321-S 32-853-63S With Air filter Spark Plug
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What It Is

This KT725 Carburetor Tune Up Kit is a replacement maintenance set for Kohler 7000 Series engines (22HP–26HP) found on many residential and light-commercial riding mowers, zero-turns, and tractors. It includes a carburetor, air filter, spark plug, gaskets, and fuel line to refresh the entire fuel and ignition system in one go.

Fitment & Compatibility

Before buying, confirm your engine model number (e.g., KT730, KT735, KT740, KT745) — this kit is not universal for all Kohler engines. Check your mower’s brand (Cub Cadet, John Deere, Husqvarna, etc.) for deck clearance and throttle linkage alignment. The carburetor replaces OEM part numbers 1685319-S and 1685321-S (also 32-853-63S). Measure your old carb’s mounting stud spacing and bowl diameter to ensure it matches. The spark plug gap should be set to 0.030 inches before installation.

Key Things to Know

  • Quality concerns: With a 3.7 rating and only 4 reviews, fit and durability are uncertain. Some users report gaskets not sealing perfectly or air filter dimensions slightly off.
  • Installation difficulty: Moderate — you’ll need basic tools (socket set, screwdriver), and to remove the old carb, swap gaskets, and reconnect throttle/governor linkages. A service manual for your engine helps.
  • Common gotchas: The supplied fuel line may be too short or stiff for some mowers; reuse your original if needed. Also, the carb may require minor tuning (idle mixture screw adjustment) after install.
  • Not a genuine Kohler part: This is an aftermarket kit; expect potential tolerance differences vs. OEM.

Should You Buy It

This kit is a budget-friendly option if you’re comfortable with basic carb work and willing to troubleshoot fit issues. It’s best for DIYers who want a full tune-up in one box and don’t mind occasional tweaks. For guaranteed fit and reliability, spend more on an OEM Kohler kit.

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