Skip to product information
SKU:
NLT1C01118
Ships for free in 2–4 business days.
Briggs V-Twin Carburetor for 40 and 44 Series 406777 44P777 Engines
$40.99
In Stock
$40.99
Sale price
$40.99
Regular price
This aftermarket carburetor fits the listed Briggs & Stratton 40- and 44-series V-twin engine families when the original flange, solenoid, and linkage match.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
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
Edward H. — Verified customer
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
- Briggs & Stratton 406777
- Briggs & Stratton 407777
- Briggs & Stratton 44P777
- Briggs & Stratton 44Q777
- Briggs & Stratton 44R677
- Briggs & Stratton 445677
Product Overview
A riding mower that surges with the deck on, floods a cylinder, or needs choke to keep running may have a blocked or worn carburetor. First check fuel pump pulse, both ignition coils, compression, valve clearance, governor springs, and intake sealing.
This assembly is sold by Briggs engine model family rather than a single equipment brand. Type and code numbers determine jetting and control details. Match the complete stamp, fuel-shutoff solenoid, choke shaft, throttle linkage, and air-cleaner base.
Key Features & Performance
- V-twin carburetor for compatible 40- and 44-cubic-inch Briggs engines
- Supports fuel metering under governed mower loads
- Complete body replacement when casting or shaft wear prevents rebuilding
- Direct-style mounting for matching engine type codes
Common Uses
- Replacing a mower carburetor damaged by stale fuel
- Correcting fuel overflow from worn internal parts
- Restoring throttle response after ignition and governor checks
Technical Specifications
- Product Type: V-twin engine carburetor
- Engine Families: Briggs 40 / 44 Series
- Fuel Type: Gasoline
- Condition: New aftermarket replacement
Installation & Fitment
- Read the full Briggs model-type-code before ordering
- Copy governor, choke, and throttle spring locations exactly
- Inspect the intake manifold and seals for cracks
- Flush the tank and test the pulse fuel pump before startup
Compatibility Notice
Northline Parts does its best to list all known compatible models. The correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is 44P777 alone enough to confirm fit? A: No. Use the complete type and code plus physical comparison.
Q: Can a weak coil cause surging under load? A: Yes. A V-twin running on one cylinder is often mistaken for a fuel problem.
Q: Should the fuel solenoid click with key power? A: A compatible solenoid should be tested according to the engine service procedure.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: 44P777 carburetor replacement, Briggs 406777 V twin carb, 44R677 mower fuel repair, 407777 aftermarket carburetor, Briggs 44 series carb assembly
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.
T
Works great. Came exactly as described with options for different installs.
S
Great! Just what I needed to get and old riding mower going again.Loved that the kit included everything needed to complete the rebuild!
B
Fit perfect
M
Put it on and the mower runs great.
r
Fit perfect and worked great
J
Was exactly as described
L
Everything is plug and play. My riding mower started right up.
J
It is as shown great price
m
let the tractor it for several years - definitely neglected. kit was perfect & Briggs Stratton started right up..
B
I received the carburetor record time. I put it on my 2454 Husqvarna mower. It started right up and runs fine. Good carburetor and would recommend to anyone!
T
Used this on a Briggs & Stratton 18hp v-twin, everything went well except for the location of the electrical plug on the bottom of the bowl. Had to cut & splice the wire to make it longer to connect the oem wiring. Once everything was on it fired right up & ran well. Good deal for a complete tune up kit but the oil filter was not correct for my engine
S
The kit arrived quickly and complete. I mainly ordered this kit as my mower had a problem with the carburetor. The o rings where old and hard causing poor running.... the carburetor rebuild kit was only slightly less expensive than this kit with a new carburetor, fuel pump, oil filter, air filter, 2 fuel filters and 2 spark plugs.I did have a small clearance issue with the throttle linkage. I had to make a small notch in the intake manifold for the linkage to travel freely and the ideal screw was set to high but with those small adjustments my mower is back running well. And when the time arises I’ll have a full service kit except for the oil. I’ve just finished mowing my 1 acre yard and I’m very happy with this item at this time