Product review (5 stars): Quality, made in USA part - Exact OEM replacement
Exact replacement. Simple repair

Our 8-year old Maytag gas dryer failed to produce any heat and I quickly determined that the ignitor had failed. The closest retail dealer who had one in stock represented a 2.5 hour, 62 mile round-trip drive and wanted $41.55 (including local taxes). The Amazon price was $16.47 including tax.

The only tools needed to replace this part are a philips screwdriver to remove the front panel and a 1/4-inch hex wrench for the mounting screw.  The replacement ignitor package included a spare mounting screw just in case you loose the original. If you do drop the original screw and use the spare, be sure to use a washer under the head to avoid damaging the ignitor body. Installation is simple and, of course, the dryer works like new.

For the record, the cold DC resistance of the new Whirlpool/Maytag 4391996 ignitor was 45.5 ohms.