Briggs & Stratton 491055S

Briggs & Stratton 491055SThe Briggs & Stratton 491055S is a conventional spark plug with nickel alloy electrodes. This spark plug is manufactured under Briggs & Stratton brend as a replacement part for small gasoline engines. This spark plug replaces old Briggs models: 491055, 805015, 72347GS, 72347.

The Briggs & Stratton 491055S spark plug has corrugated ribs, gasket seal type, a nickel alloy center and ground electrodes, a 16.0 mm (5/8 inches) hex size, and 0.9 mm (0.035 inches) spark plug gap.

General informational

Spark plug model Briggs & Stratton 491055S
Thread size 14.0 mm (0.55 in)
Thread pitch 1.25 mm (0.050 in)
Reach 19.0 mm (0.75 in)
HEX size 16.0 mm (0.629 in)
Seat type Gasket
Resistor Yes
Heat range 12
Torque specs Cast Iron: 35-40 Nm (3.6-4.0 kg·m; 25.8-29.5 ft·lb)
Aluminum: 25-29 Nm (2.5-3.0 kg·m; 18.4-21.6 ft·lb)
Gap 0.9 mm (0.035 in)
Longevity 32,000 km (20,000 miles)
Center electrode
Material Nickel
Type Standard
Size 2.5 mm (0.098 in)
Projection Projected
Ground electrode
Material Nickel
Type Standard
Quantity 1
Tip design J Gap
Skirt No

Equivalents and alternatives

Briggs & Stratton 491055S cross reference to
71, 71G, OE013, OE013T10, RC12YC, RC12YCT06, RC12YCW24
6130, BCPR5ES, stk 6130
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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