---
product_id: 13521976
title: "Briggs & Stratton 491055S - 2 Pack"
brand: "briggs & stratton"
price: "$18.61"
currency: USD
in_stock: true
reviews_count: 8
category: "Briggs & Stratton"
url: https://www.desertcart.us/products/13521976-briggs-and-stratton-491055s-2-pack
store_origin: US
region: United States of America
---

# Copper core for optimal ignition Perfect fit for Kohler & Briggs & Stratton engines Genuine OEM quality Briggs & Stratton 491055S - 2 Pack

**Brand:** briggs & stratton
**Price:** $18.61
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your engine’s potential with OEM precision!

## Quick Answers

- **What is this?** Briggs & Stratton 491055S - 2 Pack by briggs & stratton
- **How much does it cost?** $18.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/13521976-briggs-and-stratton-491055s-2-pack)

## Best For

- briggs & stratton enthusiasts

## Why This Product

- Trusted briggs & stratton brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Pack Value:** Two premium spark plugs in one bulk pack—never run out mid-season.
- • **Top-Rated Choice:** Trusted by thousands with a 4.7-star rating—join the savvy pros upgrading now.
- • **Wide Compatibility:** Fits a vast range of Kohler and Briggs & Stratton models for versatile use.
- • **Durable Copper Core:** Optimizes conductivity and heat dissipation for longer-lasting reliability.
- • **Precision Engineered Spark Plugs:** Ensure flawless ignition and peak engine performance every time.

## Overview

The Briggs & Stratton 491055S 2-pack spark plugs are genuine OEM replacements featuring a copper core for superior ignition and durability. Designed for a wide range of Kohler and Briggs & Stratton engines, these plugs deliver reliable performance and easy installation. Highly rated by thousands of users, they offer exceptional value and ensure your lawn mower or small engine runs smoothly season after season.

## Description

Includes (2) 491055 Spark PlugsNew, Bulk PackedGenuine OEM Replacement Part # 491055-2PKConsult owners manual for proper part number identification and proper installationPlease refer to list for compatibilityCompatible with the following: Kohler CH11S-16119, CH11S-16122, CH11S-16124, CH11S-16126, CH11S-16127, CH11S-16128, CH11S-16134, CH11S-16139, CH11S-16141, CH11S-16142, CH11-1626, CH11-1627, CH11-1629, CH11T-1630, CH12.5-1901, CH12.5-1902, CH12.5-1903, CH12.5-1904, CH12.5-1905, CH12.5-1907, CH12.5-1909, CH12.5-1910, CH12.5-1911, CH12.5-1912, CH12.5-1913, CH12.5-1914, CH12.5-1916, CH12.5-1917, CH12.5-1918, CH12.5-1919, CH12.5-1920, CH12.5-1921, CH12.5-1922, CH12.5-1923, CH12.5-1924, CH12.5GS-1926, CH12.5S-1928, CH12.5S-1929, CH12.5S-1931, CH12.5S-1932, CH12.5S-1934, CH12.5S-1935, CH12.5S-1936, CH12.5S-1937, CH12.5T-1927, CH13PS-22523, CH13PS-22536, CH13PT-22513, CH13PT-22520, CH13PT-22535, CH13S-22508, CH13S-22511, CH13S-22517, CH13S-22531, CH13S-22533, CH13S-22534, CH13S-22540, CH13ST-22512, CH13ST-22514, CH13T-22519, CH13T-22525, CH13T-22532, CH14-1800, CH14-1801, CH14-1802, CH14-1803, CH14-1804, CH14-1805, CH14-1807, CH14-1809, CH14-1810, CH14-1811, CH14-1812, CH14-1813, CH14-1816, CH14-1817, CH14-1818, CH14S-1827, CH14S-1828, CH14S-1829, CH14S-1830, CH14S-1831, CH14S-1832, CH14S-1835, CH14S-1838, CH14ST-1836, CH14ST-1842, CH15GS-44514, CH15GS-44524, CH15GS-44526, CH20-64520, CH20-64521, CH20-64522, CH20-64523, CH20-64524, CH20-64525, CH20-64526, CH20-64527, CH20-64528, CH20-64529, CH20-64530, CH20-64531, CH20-64532, CH20-64533, CH20-64535, CH20-64536, CH20-64537, CH20-64538, CH20-64539, CH20-64540, CH20-64541, CH20-64542, CH20-64543, CH20-64544, CH20-64545, CH20-64546, CH20-64547, CH20-64548, CH20-64549, CH20-64550, CH20-64551, CH20-64554, CH20-64555, CH20-64556, CH20-64558, CH20-64559, CH20-64560, CH20-64564, CH20-64565, CH20-64566, CH20-64567, CH20-64585, CH20-64588, CH20-64590, CH20-64593, CH20-64596, CH20-64598, CH20-64608, CH20-64609, CH20S-64561,

Review: Good replacement part - Perfect fit, no issues with performance yet.
Review: Value - Great value, perfect.

## Features

- Sold on desertcart

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #6,806 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in Lawn Mower Spark Plugs |
| Brand | Briggs & Stratton |
| Core Material | Copper |
| Customer Reviews | 4.7 out of 5 stars 2,814 Reviews |
| Thread Size | 491055 |
| Top Material Type | Metal |
| Vehicle Service Type | Lawn Mower |

## Product Details

- **Brand:** Briggs & Stratton
- **Core Material:** Copper
- **Thread Size:** 491055
- **Top Material Type:** Metal
- **Vehicle Service Type:** Lawn Mower

## Images

![Briggs & Stratton 491055S - 2 Pack - Image 1](https://m.media-amazon.com/images/I/614czG6sC6L.jpg)
![Briggs & Stratton 491055S - 2 Pack - Image 2](https://m.media-amazon.com/images/I/51SLnacuytL.jpg)
![Briggs & Stratton 491055S - 2 Pack - Image 3](https://m.media-amazon.com/images/I/41XU4cZzjeL.jpg)

## Questions & Answers

**Q: Have a 2012 troybuilt riding mower with a 17.5 hp engine. what spark plug does it take?**
A: you need model # of mower and type of engine, ie: Kohler, Braggs, Honda, etc

**Q: Does this replace rc12yc?**
A: No the thread portion is to long

**Q: Will this fit a john deer js40 self propelled walk behind mower?**
A: Yes, I think the B&S 491055S will fit the John Deere JS40 mower.  The John Deere part number for the JS40 spark plug is M78543 (JD Model JS40 maintenance sheet).  I found 4 replacement plugs for the M78543 spark plug from a cross-reference website:  Brisk 1326, Brisk DR17YC, Champion 71, and Champion RC12YC.  It is important to measure the length of the threads on the original spark plug and compare it to the new or replacement plug.  If the threads are too long you run the risk of the piston impacting the bottom of the spark plug; ruining your engine.  I've used the Champion RC12YC on my JD E100 riding mower that has a B&S engine with the B&S 491055S spark plug.  The Champion RC12YC is one of the replacement spark plugs for the 491055S.

**Q: Are these spark plugs b&s plugs or off brand plugs? thank you  be safe out there**
A: Hi they are briggs and Stratton brand.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good replacement part
*by R***J on February 5, 2026*

Perfect fit, no issues with performance yet.

### ⭐⭐⭐⭐⭐ Value
*by K***M on December 21, 2025*

Great value, perfect.

### ⭐⭐⭐⭐⭐ Briggs Stratton the real Plug
*by A***H on February 16, 2026*

Work just fine had to set them but you do all of them could be preset but these travel before they get to you.

## Frequently Bought Together

- Briggs & Stratton 491055S - 2 Pack
- Briggs & Stratton 696854 Oil Filter Replacement for Models 79589, 92134GS, 92134 and 695396

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*