Sierra 18-7007 Carburettor Gasket Kit Mercury Mariner 7.5-50HP
SM-18-7007
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Sierra Carburettor Gasket Kit
Mercury / Mariner | 18-7007
The Sierra 18-7007 gasket kit provides replacement sealing components for selected Mercury and Mariner outboard carburettors. It cross-references Mercury 1399-5135 and 1399-5198 and supports compatible Tillotson and Walbro BA/BB carburettor families during overhaul or repair.
Key Features
- ✔ Sierra Replacement Kit: Marine aftermarket parts from Sierra.
- ✔ Carburettor Service: Replacement gaskets for compatible overhaul work.
- ✔ Mercury / Mariner Application: Covers selected BA and BB carburettor families.
- ✔ Part-Number Fitment: Cross-referenced to Mercury 1399-5135 and 1399-5198.
Technical Specs
| Brand | Sierra |
| Sierra Part Number | 18-7007 |
| 4Boats SKU | SM-18-7007 |
| Part Type | Carburettor Gasket Kit |
| Application | Selected Mercury / Mariner Outboards |
| Supply Type | Aftermarket |
Compatibility / Fitment Guide
| Make | Model/Application | Notes |
|---|---|---|
| Mercury / Mariner | 7.5HP and 9.8HP, selected 1972-1985 models | Confirm BB carburettor code. |
| Mercury / Mariner | 20HP, selected 1973-1980 models | Confirm BA carburettor code. |
| Mercury | 45HP 4-cylinder, selected 1986 models | Tillotson/Walbro application; verify carburettor. |
| Mercury | 50HP, selected 1976-1985 models | Confirm BA carburettor code. |
OEM Cross Reference
| Sierra Marine | 18-7007 |
| Mercury / Mariner | 1399-5135, 1399-5198 |
| Mallory Marine | 9-37306, 9-37307 |
| 4Boats SKU | SM-18-7007 |
Questions & Answers
Is this a genuine Mercury kit?
No. It is a Sierra aftermarket gasket kit.
Are jets, needles or floats included?
No such components are claimed; this listing is for the gasket kit shown.
Will it fit every 7.5-50HP Mercury carburettor?
No. Match the carburettor code and original part number.
How should the carburettor be serviced?
Use the applicable workshop manual and adjust the carburettor to the manufacturer's specification.
Note: Clean all mating surfaces without damaging them and confirm every passage is clear before reassembly.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
