Use the Heat Range Conversion Chart to compare the heat ranges between spark plug brands. Use the Autolite Numbering System to decipher Autolite's part number system. Part Specification Listings: All available part specifications have been included in the part details page.

Autolite engineers have developed plugs in many heat ranges to suit all engine applications. They range from COLD through MEDIUM; and HOT to EXTREMELY HOT. Rules for selecting the correct plug are to follow manufacturer’s specifications. COLD MEDIUM HOT

Understanding Autolite Spark Plug Numbering System; Torque Specifications; Heat Range Facts; Half Thread/Full Thread Explanation; Autolite Copper Core Spark Plug Attributes; ... Principal Applications & Specifications; Passenger Cars & Light Trucks 2011 - 1996; Passenger Cars & Light Trucks 1995 - 1960;

Whether you're looking for a relible set of replacement plugs, or looking to take engine performance to the next level, Autolite ® has you covered. From platinum to copper and iridium spark plugs, Autolite offers OE quality and performance for all car makes and models.

Use the Autolite torque recommendations below as a guide for tightening all spark plugs. Keywords Spark Plug Torque Specifications; Spark Plug Torque Recommendations

2399 Resistor 2456 Non-resistor 8251 Xtreme Start™ 8252 Xtreme Sport® 8290 Tapered seat 8291.060" Gap 8293 Bantam plug with 3/4" hex 8294 Power tip 8295 Special lawnmower plug 8297 Bantam plug 8301 Special power tip 9532 Military waterproof

Finding and Comparing Autolite Part Specifications. Multiple tools are available to find part dimensions and features. Learn More

Autolite has 2544, 2545 and 2546 available. 2544 is the coldest plug in that plug family, and 2546 is the hotest. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974.

This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.

2018年5月11日 · For many mild small-block aluminum heads, this spark plug would relate to an Autolite 3924 for street use. Within the Autolite family, this particular plug is toward the hotter side of the range that runs (cold-to-hot) 3922 – 3923 – 3924 – 3926.