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SKU:
NLT2O01059
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209139A 40-Series Torque Converter – 1-Inch Driver 3/4 Driven
$155.99
In Stock
$155.99
Sale price
$155.99
Regular price
Restore CVT power transfer on compatible go-karts and utility machines with a 40-series torque converter using a 1-inch driver clutch and 3/4-inch driven clutch.
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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
- Go-karts using Comet 40-series dimensions
- Manco karts using 209139A / 209133A-style components
- Mini buggies and utility vehicles with a 1-inch engine shaft and 3/4-inch jackshaft
- Custom builds within the converter’s power and speed limits
Product Overview
A worn converter can chatter on takeoff, slip as the belt climbs, or keep an engine from pulling under load. This matched driver-and-driven setup is aimed at larger 8-18HP applications using the Comet / Manco 40-series layout.
Bore size is only the beginning. Match the keyway, shaft lengths, sheave orientation, center distance, belt type, engine speed, and mounting clearance before installation.
This is an aftermarket replacement part and is not manufactured or supplied by the original equipment brand.
Key Features & Performance
- 40-series driver and driven clutch set
- 1-inch driver bore
- 3/4-inch driven bore
- For compatible 8-18HP engines and drivetrains
Replaces Part Numbers
- 209139A
- 209139
- 209133A
- 209151A, when the complete drive geometry matches
- Manco 2432, when cross-referenced
Common Uses
- Replacing a slipping torque converter
- Correcting jerky or delayed engagement
- Upgrading a compatible larger-engine kart from worn drive parts
- Building a CVT drive with 40-series dimensions
Technical Specifications
- Product Type: 40-series torque converter set
- Driver Bore: 1 inch
- Driven Bore: 3/4 inch
- Listed Engine Range: Approximately 8-18HP, application dependent
Installation & Fitment
- Measure both shafts and keyways
- Confirm sheave alignment and center distance
- Use the belt specified for the final geometry
- Torque hardware and retain keys correctly
- Test engagement with the drive wheels safely raised
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 alone may not guarantee fitment. Compare the original component, reference number, connector or mounting design, dimensions, and any serial-number or production-date break before purchase.
Frequently Asked Questions
Q: Will it fit a Predator 212 engine? A: Most 212cc engines use a 3/4-inch shaft and often a 30-series converter, so this 1-inch driver usually is not the direct choice.
Q: Does it include the belt and mounting plate? A: Confirm package contents; the core product is identified by the driver and driven clutches.
Q: Why does a new belt keep wearing? A: Misalignment, wrong belt, damaged sheaves, or incorrect center distance can destroy it.
Part Summary
keywords: 209139A torque converter, 40 series go kart clutch, 1 inch driver 3/4 driven, Manco 2432 replacement, 8 18HP CVT kit, go kart slipping clutch 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.