Sierra 18-7086 Carburetor Kit for GM 4.3/262 and 5.0L Rochester 2GE Carburetors

The Sierra 18-7086 Carburetor Kit is a rebuild kit for Rochester 2GE two-barrel carburetors used on GM 4.3/262 and 5.0L marine engines. It is built with precision-machined components designed to meet or exceed original equipment quality, giving the carburetor a proper rebuild rather than a partial patch job. The kit is intended for technicians and DIY boat owners overhauling a Rochester 2GE carburetor that has developed wear, gasket leaks, or worn internal components that affect fuel metering and idle quality.

Because Sierra parts are built to original equipment specifications, the 18-7086 kit restores the carburetor's factory fuel delivery characteristics rather than approximating them. It is cross-referenced to numerous OEM and aftermarket part numbers, making it a straightforward replacement for the original rebuild kit supplied with these Rochester 2GE-equipped engines, without needing to track down a discontinued OEM kit.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7086
• UPC: 030999321091
• Weight: 0.32 pounds
• Exterior Finish: Machined
• Carburetor Model Compatibility: Rochester 2GE (2-barrel)
• Mfg. Carburetor Code: R2

Fitment

• 4.3/262 (GM), 1989, Rochester 2GE 2-barrel carburetor
• 5.0L (GM), 1979-85, Rochester 2GE 2-barrel carburetor

Replaces (OEM)

• EMP 1300-03683
• GLM 76120
• Mallory 9-37610
• OMC Stern Drive 984487
• Rochester 17057130
• Rochester 17057131
• Rochester 17057133
• Rochester 17057134
• Rochester 17057138
• Rochester 17059051
• Rochester 17059057
• Rochester 17059058
• Rochester 17059059
• Rochester 17059060
• Rochester 17080050
• Rochester 17083110
• Rochester 17085008
• Rochester 17086107
• Volvo Penta 826414-5
• Volvo Penta 841048-2
• Volvo Penta 841667-9
• Volvo Penta 841994

Frequently Asked Questions

What is the Sierra 18-7086 carburetor kit used for? It is a rebuild kit for Rochester 2GE two-barrel carburetors fitted to GM 4.3/262 and 5.0L marine engines, used to restore worn or leaking carburetor components to proper working condition.

Which engines does the 18-7086 kit fit? This kit fits the GM 4.3/262 engine (1989) and the GM 5.0L engine (1979-85), both equipped with a Rochester 2GE two-barrel carburetor.

Is the Sierra 18-7086 kit interchangeable with OMC or Volvo Penta parts? Yes, the 18-7086 kit is interchangeable with OMC Stern Drive 984487 and Volvo Penta 826414-5, 841048-2, 841667-9, and 841994, among other cross-referenced numbers.

Does this kit work with Rochester-numbered carburetor kits? The 18-7086 kit is interchangeable with several Rochester kit numbers, including 17057130, 17057131, 17057133, 17057134, 17057138, 17059051, 17059057, 17059058, 17059059, 17059060, 17080050, 17083110, 17085008, and 17086107.

How much does the 18-7086 carburetor kit weigh? The Sierra 18-7086 carburetor kit weighs 0.32 pounds.

Is this a genuine Sierra part or aftermarket? The 18-7086 is a genuine Sierra carburetor kit, built with precision-machined components to meet or exceed original equipment quality.

What finish do the components in this kit have? The components in the Sierra 18-7086 kit have a machined exterior finish.

Will the 18-7086 kit work on any Rochester 2GE carburetor? The 18-7086 kit is designed for Rochester 2GE two-barrel carburetors used on the specific GM 4.3/262 and 5.0L engine applications listed for this part; confirm your carburetor model code matches before ordering.

Are Mallory or GLM equivalents the same as the Sierra 18-7086? Mallory 9-37610 and GLM 76120 are cross-referenced as interchangeable with the Sierra 18-7086 carburetor kit.

Is the EMP 1300-03683 kit the same as the Sierra 18-7086? Yes, EMP 1300-03683 is listed as interchangeable with the Sierra 18-7086 carburetor kit.

What does rebuilding a Rochester 2GE carburetor with this kit accomplish? Installing the 18-7086 kit replaces the internal components subject to wear, restoring proper fuel metering and idle performance to a Rochester 2GE carburetor on a 4.3/262 or 5.0L GM marine engine.