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SKU:
NLT1Z03121
Ships for free in 2–4 business days.
Kohler CH CV 17-25 HP Vacuum Fuel Pump 24 393 16-S 24 393 04-S
$24.99
In Stock
$24.99
Sale price
$24.99
Regular price
This vacuum fuel pump replaces Kohler 24 393 16-S and 24 393 04-S on compatible CH17-CH25, CV17-CV25, CH730-CH740, and CV730-CV740 engines.
Estimated delivery between
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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
- Kohler CH17 through CH25
- Kohler CV17 through CV25
- Kohler CH730 and CH740
- Kohler CV730 and CV740
- Equipment using a matching Kohler pump reference and 1/4-inch hose
Product Overview
If a Kohler starts with a splash of fuel but starves while mowing, the pulse pump may no longer be keeping the carburetor bowl full. Old fuel, a torn diaphragm, or a cracked pulse line can all lead to weak delivery.
This replacement uses 1/4-inch fuel hose on matching engine setups; confirm port direction and pump reference.
Key Features & Performance
- Vacuum/pulse-operated design
- Fits 1/4-inch fuel line
- Restores fuel flow to the carburetor
- Compact three-port body
- Covers common Kohler Command engine families
Replaces Part Numbers
- 24 393 16-S
- 24 393 04-S
- 24-393-16-S
- 24-393-04-S
- 2439316S
- 2439304S
- 808656
Common Uses
- Replacing a leaking vacuum pump
- Fixing fuel starvation under mowing load
- Reviving an engine after degraded fuel damaged the diaphragm
Technical Specifications
- Product Type: Vacuum fuel pump
- Fuel Hose: 1/4 inch
- Engine Power Range: Common 17-25 HP applications
- Fuel System: Carbureted
- Replacement Type: Aftermarket
Installation & Fitment
- Label the pulse, inlet, and outlet hoses
- Replace old fuel and a clogged filter
- Inspect the pulse line for splits
- Keep hoses away from hot engine surfaces
- Check every connection for leaks
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, connector, dimensions, installed options, and previous repairs can affect fitment. Compare the original component and reference information before purchase.
Frequently Asked Questions
Q: Does this fit a fuel-injected Kohler? A: No. It is for compatible carbureted engines using this vacuum pump.
Q: Can a cracked pulse hose look like a bad pump? A: Yes. The pump cannot work correctly without a strong pulse signal.
Q: Will it fit any 25 HP Kohler? A: No. Match the engine model, pump reference, hose size, and port layout.
Q: What fuel-line size does this pump use? A: The listed vacuum pump uses 1/4-inch fuel line. Confirm the pulse connection and port direction as well.
Q: Is this an original-equipment part? A: No. This is an aftermarket item. Brand, model, and part numbers identify fitment only; compare the original part and the listing details before ordering.
Part Summary
keywords: Kohler 24 393 16-S fuel pump, 24 393 04-S vacuum pump, CH25 mower fuel starvation, CV740 carburetor pump, 1/4 inch small engine fuel pump
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.