Sierra Carburetor Kit 18-7095 for GM 4.3L and 5.0L Rochester Quadrajet (4MV) Carburetors, 1979-1989

The Sierra 18-7095 Carburetor Kit is a rebuild kit engineered for Rochester Quadrajet (4MV) carburetors used on GM 4.3L and 5.0L marine engines from 1979-1989. Rebuilding a carburetor restores factory air/fuel metering after gaskets, seals, and internal components have worn or degraded from ethanol-blended fuel exposure, heat cycling, and normal use, which commonly shows up as rough idle, hesitation, flooding, or hard starting. This kit contains the gaskets, seals, and internal wear components needed to properly rebuild the 4MV carburetor body without sourcing individual parts separately.

Sierra manufactures this kit to match OEM fit and function for the specific engine and carburetor combination listed below, so the components are sized and configured for the Rochester 4MV application rather than being a generic universal kit. A matching float, part number 18-7201, is used with this carburetor application and is sold separately from this kit.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7095
• Product Type: Carburetor Kit
• Compatible Carburetor Model: Rochester Quadrajet (4MV)
• Fitment: GM 4.3L and 5.0L engines, 1979-1989
• Matching Float (sold separately): 18-7201
• Weight: 0.41 pounds
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• Finish: Machined
• UPC: 030999321169

Fitment

• GM 4.3L, 1979-1989, Rochester 4MV carburetor
• GM 5.0L, 1979-1989, Rochester 4MV carburetor

Replaces (OEM)

• CRUSADER 45334
• MERCURY MARINE 1397-7539
• 1397-7540
• 1397-7544
• 1397-8535
• 1397-9723
• OMC 383918
• 983864
• VOLVO 834985-4

Frequently Asked Questions

What engines does the Sierra 18-7095 carburetor kit fit? The Sierra 18-7095 carburetor kit fits GM 4.3L and 5.0L engines built from 1979-1989 that use a Rochester Quadrajet (4MV) carburetor.

Does this kit include a new float? No, the 18-7095 kit does not include the float. The matching float for this carburetor application is Sierra part number 18-7201, which is sold separately.

Is Sierra 18-7095 an OEM part or an aftermarket replacement? Sierra 18-7095 is an aftermarket rebuild kit manufactured to match OEM fit and function for the applicable Rochester 4MV carburetor, and it cross-references to OEM numbers including Mercury Marine 1397-7539, Crusader 45334, OMC 383918, and Volvo 834985-4.

What OEM numbers does part 18-7095 replace? The 18-7095 kit cross-references to Crusader 45334, Mercury Marine 1397-7539, 1397-7540, 1397-7544, 1397-8535, and 1397-9723, OMC 383918 and 983864, and Volvo 834985-4.

How much does the 18-7095 carburetor kit weigh? The Sierra 18-7095 carburetor kit weighs 0.41 pounds.

What are the dimensions of this carburetor kit? The 18-7095 kit measures 0.39 x 0.39 x 0.39 inches as packaged.

Will 18-7095 work with a Rochester 2GE carburetor? No. The 18-7095 kit is built for the Rochester 4MV (Quadrajet) carburetor; a different Sierra kit, 18-7086, covers the Rochester 2GE applications on other GM engine years.

What finish do the internal components of this kit have? The components in the Sierra 18-7095 carburetor kit have a machined finish.

Why would I need to rebuild my carburetor instead of replacing it? Rebuilding with a kit like the Sierra 18-7095 restores the gaskets, seals, and wear components inside the Rochester 4MV carburetor at a fraction of the cost of a full carburetor replacement, addressing symptoms like rough idle, flooding, or hard starting caused by worn internals.

What is the UPC for Sierra 18-7095? The UPC for the Sierra 18-7095 carburetor kit is 030999321169.

Is the 18-7095 kit compatible with both 4.3L and 5.0L GM engines? Yes, Sierra 18-7095 is listed for both GM 4.3L and 5.0L engines from 1979-1989 as long as they use the Rochester 4MV carburetor.