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SKU:
NLT1Q00735
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Briggs & Stratton Intek Carburetor – Replaces 594593, 591731 and 794572
$32.99
In Stock
$32.99
Sale price
$32.99
Regular price
New aftermarket carburetor for select 14.5–21 HP Briggs & Stratton Intek single-cylinder engines; replaces 594593, 591731, and 794572 when the original configuration matches.
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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
- Select Briggs & Stratton Intek single-cylinder engines rated 14.5–21 HP
- Briggs & Stratton engine applications originally using 594593, 591731, or 794572
Product Overview
Hard starting, hunting at governed speed, black smoke, or fuel leaking into the intake can all lead to the carburetor, but the repair begins with fresh fuel, a clean filter, and confirmation that the choke opens fully. This assembly is a sensible replacement when the original has varnished passages, a damaged seat, or excessive shaft wear.
Intek engines with the same advertised horsepower can use different carburetors. Confirm the engine model/type/code and compare the fuel solenoid, choke, mounting flange, and linkage.
Key Features & Performance
- For select Briggs & Stratton Intek single-cylinder engines
- Cross-references three common carburetor numbers
- Supports steady idle and governed mowing load
- Replacement option after stale fuel or internal carburetor damage
Replaces Part Numbers
- 594593
- 591731
- 794572
Common Uses
- Fixing a mower that hunts at steady throttle
- Repairing fuel flooding caused by a damaged carburetor
- Restoring a lawn tractor after off-season fuel deterioration
Technical Specifications
- Product Type: Carburetor assembly
- Engine Family: Briggs & Stratton Intek single cylinder
- Horsepower Range: Select 14.5–21 HP applications
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Match the engine model, type, and code rather than horsepower alone
- Verify the fuel-shutoff solenoid connector and thread style
- Replace contaminated fuel and inspect the intake gasket
- Confirm choke travel, governor linkage, and leak-free operation
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Production date, engine type, transmission, trim, serial number, and previous repairs can change fitment. Compare the original part, mounting points, dimensions, connections, and listed reference numbers before purchase.
Frequently Asked Questions
Q: Will this fit any 18.5 HP Briggs engine? A: No. Use 594593, 591731, or 794572 plus the full engine identification and physical comparison.
Q: Can a stuck fuel solenoid cause a no-start? A: Yes. Verify power and solenoid movement before replacing the entire carburetor.
Q: Why is gas entering the crankcase? A: A leaking inlet needle can allow fuel past the carburetor. Change contaminated oil before running the engine.
Q: Are gaskets or accessories included? A: Purchase based on the listing photos and included-items field; reuse only serviceable intake hardware.
Part Summary
keywords: Briggs 594593 carburetor, 591731 carburetor replacement, 794572 Intek carburetor, 18.5 HP mower carb, Briggs single cylinder carburetor
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.