| Engine options | |
| 18HP Briggs & Stratton 693cc 2-cyl gasoline | |
| 18HP Vanguard 569cc 2-cyl gasoline |
| Engine Detail | |
| Briggs & Stratton 421417 | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| Original engine for the GT-1855. | |
| Displacement | 693 cc 42.3 ci |
| Bore/Stroke | 3.44x2.28 inches 87 x 58 mm |
| Power (gross) | 18 hp 13.4 kW |
| Air cleaner | dry |
| Rated RPM | 3500 |
| Starter | electric |
| Starter volts | 12 |
| Engine Detail | |
| Vanguard 350447 | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft V-Twin | |
| The V-Twin was used during the final production run of the GT-1855 with the 998 model codes. | |
| Displacement | 569 cc 34.75 ci |
| Bore/Stroke | 2.83x2.75 inches 72 x 70 mm |
| Power (gross) | 18 hp 13.4 kW |
| Air cleaner | dry |
| Starter | electric |
| Starter volts | 12 |
| White GT-1855 Engine | |
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| Page information | |
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| Copyright 2025 TractorData.com® | |
| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on April 2, 2025 |