NGK 7421 - Alternative spark plugs
There are 82 replacement spark plugs for NGK 7421. The cross references are for general reference only, please check specifications for your application.
Compatible plug on Amazon
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include Amazon Associates.
Specifications for NGK 7421
- Thread diameter
- 14.0 mm
- Thread reach
- 9.5 mm
- Hex size
- 19 mm
NGK 7421 replacement spark plugs
- ACDelco CSR45
- ACTIVE RAX80
- Allis-Chalmers 4907334
- Allis-Chalmers 4948894
- Allis-Chalmers 9001652
- Autolite 245 Buy from Amazon
- Autolite 255 Buy from Amazon
- Autolite XST255
- BAKER 716G1
- Beru 14SR-7E
- Beru Z271
- Bosch 0242229643
- Bosch 0242235725
- Bosch 0242240582
- Bosch WSR6E
- Bosch WSR7E
- Bosch WSR8E
- Brisk 3050
- Brisk 77306
- Brisk PR17
- Caterpillar 0099476
- Caterpillar 141267
- Caterpillar 851101
- Caterpillar 8N2236
- Caterpillar 99476
- Caterpillar 997476
- Caterpillar MD851101
- Caterpillar MD997476
- Champion RC8J Buy from Amazon
- Champion RCJ8 Buy from Amazon
- Champion RCJ8T10
- CLARK 446583
- CLARK 890210
- CLARK 890219
- CLARK 890220
- CLARK 890225
- CLARK 890236
- CLARK 890252
- CLARK 890253
- CLARK 890265
- CLARK 890267
- CROWN 38001301702
- DAEWOO 8N2236
- DAEWOO D141267
- DAEWOO D700699
- Denso 6025
- Denso W16SU
- Denso W20MR-U Buy from Amazon
- Denso W20MRU
- Fuji 065-01404-70
- Fuji 0650140470
- Honda 98073-56744
- Honda 9807356744
- HYSTER 0360046
- HYSTER 3001588
- HYSTER 3002289
- HYSTER 360046
- Iskra FSC50R
- Kawasaki 920702060
- Kawasaki E920702060
- Komatsu HE005204800
- Komatsu HE011025600
- Komatsu HE011052600
- Komatsu HE402502314
- Komatsu HE52892
- Mitsubishi 8N2236
- Mitsubishi 997476
- Mitsubishi MD997476B
- Motorcraft AR7N
- NGK 3850
- Toyota 005910549381
- Toyota 005911091981
- Toyota 005912017481
- Toyota 005913368781
- Toyota 005915531081
- Toyota 800987600471
- Toyota 800987600571
- Wolf 2000305
- Wolf 2050324
- Yale & Towne 150112473
- Yale & Towne 150112490
- Yale & Towne 150112494
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network and Amazon Associates.
Replacement spark plugs for NGK 7421 on Amazon
Advanced search
Choose brand and start typing model number.