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SKU:
NLT1Q00730
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Cub Cadet LTX1040 LTX1042 LTX1045 XT1-LT42 Carburetor | Kohler 20-853-33-S
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
This aftermarket carburetor replaces selected Kohler 20-853-series numbers on compatible Cub Cadet LTX1040, LTX1042, LTX1045, XT1-LT42, and related tractors.
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Cub Cadet LTX1040 with matching Kohler engine
- Cub Cadet LTX1042 with matching Kohler engine
- Cub Cadet LTX1045 with matching Kohler engine
- Cub Cadet XT1-LT42 with matching Kohler engine
- Cub Cadet i1046, LT1042, LT1045, and RZT42 applications using the same listed carburetor configuration
Product Overview
Surging at full speed, fuel dripping after shutdown, or a tractor that runs only on partial choke often sends owners toward the carburetor. This unit is a repair option for the matching Kohler single-cylinder setup—not a universal answer for every Cub Cadet carrying the same deck size.
Read the Kohler model and specification label and compare the fuel solenoid, choke shaft, mounting studs, and linkage. Deck size and tractor series do not replace engine identification.
This is a high-quality aftermarket replacement or service part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- Replacement carburetor for compatible Kohler-powered Cub Cadet machines
- Restores metered fuel delivery from idle through mowing load
- Includes fuel-shutoff provision where the original configuration matches
- Aftermarket solution for confirmed carburetor wear or contamination
Replaces Part Numbers
- 20-853-33-S
- 20-853-16-S
- 20-853-42-S
- 20-853-43-S
Common Uses
- Correcting an engine that only runs with choke assistance
- Repairing bowl leakage or a sticking fuel inlet system
- Returning a zero-turn or lawn tractor to consistent seasonal service
Technical Specifications
- Product Type: Small-engine carburetor
- Compatible Engine Families: Selected Kohler SV530, SV591, SV600, SV601, SV610, and SV620 specifications
- Primary Equipment: Cub Cadet tractors and zero-turns listed above
- Replacement Type: Aftermarket
Installation & Fitment
- Identify the exact Kohler model and specification before removal
- Compare the carburetor number and all linkage geometry
- Verify the shutoff-solenoid circuit and clean the fuel supply
- Test at idle and under deck load while keeping governed speed within specification
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Model names and year ranges alone may not guarantee fitment. Always compare the original component, reference number, dimensions, connectors, engine or vehicle identification, and installed configuration before purchase.
Frequently Asked Questions
Q: Will it fit based on a 42-inch deck alone? A: No. The engine and original carburetor configuration determine fit.
Q: Can a vacuum leak cause the same surging? A: Yes. Intake gaskets, crankcase breather faults, and governor issues should be checked.
Q: What if the replacement solenoid does not click? A: Test for correct voltage, ground, and connector fit before condemning the solenoid.
Q: How should final fitment be confirmed? A: Match the original component and every listed identifier and physical detail; contact Northline Parts with the model, serial number, VIN, engine code, or clear photos when additional help is needed.
Part Summary
keywords: Cub Cadet LTX1042 carburetor, LTX1045 Kohler carb replacement, XT1-LT42 mower carb, 20-853-33-S replacement, Cub Cadet runs only with choke repair
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.