Medium
15-30 minutes
The throttle shaft is made out of metal. This part is available individually. It is an OEM from Kohler for use in engines. When replacing this part a screwdriver, a socket set, and a wrench set might all be needed. Over time this part may break and will need to be replaced.
Shaft, Throttle W/Lever & Seal 12 144 09-S
OEM part for: Kohler
Part Number: 12 144 09-S
$15.48
In Stock
Ships within 1 business day 
Compatibility
This Shaft, Throttle W/Lever & Seal will fit the following 285 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Kohler
Show More Compatible ModelsThis item works with the following types of products:
- Engine Parts
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
25+ year old Troy Bilt lawn tractor with Kohler engine. Throttle shaft seal worn off, linkage tab broken off, & throttle shaft was so worn that it was surrounded with brass dust. It would no longer
Howard - March 25, 2017
Tool Type
Engine
Difficulty
Medium
Time
15-30 minutes
Tools Used
Pliers, Socket set, Nutdriver, Small torx driver to remove butterfly from throttle shaft
1. Removed air cleaner.
2. Removed air cleaner box from the carb.
3. Removed choke & throttle linkages from choke & throttle
4. Removed carb body. This took a little tugging, twisting because the gasket was stuck to both the carb body & intake port. Scraped old gasket of both surfaces.
5. Removed butterfly from throttle shaft.
6. Replaced throttle shaft & seal; reinstalled butterfly on shaft.
7. Installed new gasket. I like to use a thin film of grease on gaskets but maybe that's just me.
8. Repeated steps 4-3-2-1 using "replace" instead of "removed".
I thought my chances of getting replacement parts for an engine this old were about zero. Thanks to eReplacementParts, this old Kohler is running like a top! (It helps, too, that it's a Kohler.)
2. Removed air cleaner box from the carb.
3. Removed choke & throttle linkages from choke & throttle
4. Removed carb body. This took a little tugging, twisting because the gasket was stuck to both the carb body & intake port. Scraped old gasket of both surfaces.
5. Removed butterfly from throttle shaft.
6. Replaced throttle shaft & seal; reinstalled butterfly on shaft.
7. Installed new gasket. I like to use a thin film of grease on gaskets but maybe that's just me.
8. Repeated steps 4-3-2-1 using "replace" instead of "removed".
I thought my chances of getting replacement parts for an engine this old were about zero. Thanks to eReplacementParts, this old Kohler is running like a top! (It helps, too, that it's a Kohler.)
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Carburetor throttle shaft lever broke free of the original throttle shaft
Mike - July 7, 2016
Tool Type
Engine
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
Parts Used
On a Kohler CH14S engine:
Remove air cleaner assembly.
Remove carburetor nuts and carburetor.
Remove 2 small screws from throttle plate.
Remove old throttle shaft from carburetor.
Install new seal just under new throttle shaft lever.
Install new throttle shaft in carburetor.
Install throttle plate and use blue loctite on throttle shaft plate screws.
Re-install carburetor.
Re-install air cleaner assembly.
Remove air cleaner assembly.
Remove carburetor nuts and carburetor.
Remove 2 small screws from throttle plate.
Remove old throttle shaft from carburetor.
Install new seal just under new throttle shaft lever.
Install new throttle shaft in carburetor.
Install throttle plate and use blue loctite on throttle shaft plate screws.
Re-install carburetor.
Re-install air cleaner assembly.
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Thanks for voting and helping fellow customers!
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All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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