It depends on what heads and ignition system you're using.
You'll have better luck with AC plugs in a Chevy.
Champion J8C
what is the champion cross reference for a briggs and stratton spark plug 691043
Champion RN4C - Gap .030"
Use a Champion RJ19LM set to a 0.030" gap.
An Autolite 258 is the recommended spark plug for a 6. 5 horsepower Tecumseh engine. A Champion RJ19LM also is recommended by the manufacturer.
The appropriate Champion spark plug for an Ariens snowblower typically depends on the specific model and engine type. However, many Ariens snowblowers commonly use the Champion RCJ8Y spark plug. It's advisable to consult the owner's manual or check with a dealer to ensure the correct spark plug for your particular model.
Other spark plug brands which cross-reference/interchange with the Champion QC12YC include: NGK: BCPR5ES Denso: Q16PR-U As for what applications the spark plug fits, it fits various European applications, such as BMW, Mercedes, and Saab.
Champion F-14Y, gap .034".
The Champion RJ2YXLE spark plug can be replaced with the Champion RJ19LM or the NGK BPR6ES as suitable alternatives. These plugs have similar specifications and compatibility for many applications. Always check your owner's manual or consult with a professional to ensure the replacement fits your specific engine requirements.
Champion RC-12YC at 0.030"
The appropriate spark plug for an 8.5 hp Tecumseh engine is typically a Champion J19LM or an equivalent model. It's important to always check the owner's manual or the engine's specifications for the correct spark plug type and gap settings to ensure optimal performance. If you're unsure, consulting a small engine repair shop can also provide guidance.
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