Description
MARINE CARBURETOR 4 BARREL ROCHESTER QUADRAJET 5.7
REPLACEMENT FOR WEBER 9770S
WITH ELECTRIC CHOKE
This 4-Barrel Marine Carburetor is a replacement for Weber 9770S, featuring a brand-new electric choke for improved cold starts and consistent performance.
(To install: remove the spacer/adapter plate under the Weber carburetor and relocate the fuel line to the front.)
Designed specifically for Mercury Marine applications, this carburetor fits 8-cylinder Mercury Marine 350 / 5.7L V8 engines.
Each unit is assembled using high-quality, all-new components and is bench tested to ensure reliable operation before shipment.
Features & Upgrades
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Brand-new electric choke
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New choke pull-off
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New float, needle, and seat
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All-new gaskets and internal components
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Throttle shaft upgraded with brass bushings to eliminate vacuum leaks
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Refinished base
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Yellow zinc-plated linkages and hardware for corrosion resistance
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Castings coated with protective black paint
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Casting plugs sealed with epoxy to prevent internal fuel leak-down
Applications
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Mercury Marine 5.7L / 350 CID V8
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MCM 260
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Marine use only
Replaces / Interchanges (Reference Only)
This carburetor replaces and upgrades the following to an electric choke setup:
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9781S
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9770S
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9665S
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3310-8M0047211
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3310-806761A1
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3310-806761A2
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3310-806761A3
Reference numbers listed for compatibility only.
Quality Assurance
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Fully bench tested
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Marine-specific calibration
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Built for durability in harsh marine environments
Additional Availability
Also available for:
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4.3L
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5.0L
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7.4L
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8.2L marine engines