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NGK BCPR5ES (OHV) Spark plug Equivalent To Briggs and Stratton number RC12YC.
Two NGK Spark Plugs – BCPR5ES, Replaces Champion RC12YC.
NGK BCPR5ES OHV Spark plug equivalent to Briggs and Stratton number 992304 and 992306.
Spark Plug for NGK BPR5ES, 7734, 4006, Cub Cadet 951-14437, Torch F5RTC, Champion RN11YC4.
NGK CS6 Series Spark Plug replaces: BKR5ES or BKR5E Champion: RC12YC and RC14YC 100 Plugs per box.
Fits Briggs & Stratton: Single Single cylinder Intek and Vanguard OHV vertical and horizontal engines, Intek and VanguardIHV twin cylinder horizontal engines and liquid cooled 3 cylinder engines; Kohler: Command OHV horizontal and vertical engines,CV17-CV26, CV460, CV490, CV492, CV493, CV730,CV740, CV745, Courage and …
CHAMPION SPARK PLUG N3C – EQUIVALENT TO B8ES.
Iridium Spark Plugs – Service Life
Denso Iridium spark plugs use a much thinner electrode than even the NGK. Given how long the NGK electrodes last you could argue the NGK are over engineered and reducing their diameter would have no effect on their service life.
Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.
Champion N2C NON – RESISTOR spark plug equivalent to NGK B8ES.
A BPR5ES spark plug is hotter and better suited for high-speed or heavy-load applications than a BPR6ES spark plug, which is cooler and better suited for low-speed or light-load applications. This is the major difference between the two BPRES spark plugs.
At the top of the list, we have the NGK Spark Plugs. With iridium as its core material, this spark plug pack can operate at a much wider heat range as compared to ordinary spark plugs made out of platinum or copper.
Following an acquisition by Cooper Industries
In 1989, Champion was purchased by Cooper Industries and is now a wholly owned brand of Federal-Mogul Corporation. Its main products are a line of spark plugs for a wide range of cars, trucks, SUVs, racing, and marine applications.
The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.
NGK doesn`t recommend adjusting the plug gap more than . 008″ in either direction. Beyond that slight adjustment, the ground electrode and center electrode won`t align properly, hindering spark plug performance and drastically reducing plug life.
Champion RN3C RESISTOR spark plug equivalent to NGK BR7ES. Suited for road use. This is the ideal plug for any tuned Lambretta.
CHAMPION SPARK PLUG N2C – EQUIVALENT TO BR9ES.
Additionally, iridium is complex to extract from its ore, and the resultant metal is brittle and difficult to work with. All these factors increase the relative cost of iridium spark plugs.
Platinum has better performance in terms of durability than other standard spark plugs. However, when compared with iridium, there`s a major difference. Iridium has better performance in igniting the air-fuel compression within the combustion chamber.
On top of that, the electrical resistance of iridium is better than copper, which also adds to its performance and longevity. The iridium plugs might cost slightly more than the copper spark plugs, but it`s still worth it because you`ll be paying for quality.
NGK builds two types of iridium spark plugs: OE Iridium and Iridium IX®. Every plug in the Laser Series was designed for an OEM application. All dual precious metal plugs are designed to provide maximum longevity.
Platinum is much harder, with a higher melting point than nickel alloy. This allows a platinum spark plug to retain a sharp edge (and resist wear) much longer. Longevity is a key advantage in platinum spark plugs — they`re typically replaced around 60,000 miles but can last up to 100,000 miles.
In general, a light tan/gray color tells you that the spark plug is operating at optimum temperature and that the engine is in good condition.