A while back in this forum a poster with an LX665 replaced his factory glow plugs with NGK 7464's from Rock Auto for something like 8 or 9 dollars each. That's a much better price than the 30 to 50 dollar OEM replacements from my NH dealer!!! Has anyone else used these NGK plugs and found them to be direct replacements? I'm beginning to have hard starting problems in cold weather with my '98 LX565 and want to replace all 4 glow plugs right off, but don't want to have to take out a loan to do it.