Champion 66 - Alternative spark plugs
There are 49 replacement spark plugs for Champion 66. The cross references are for general reference only, please check specifications for your application.
Compatible plug on Amazon
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Specifications for Champion 66
- Thread diameter
- M14x1.25
- Thread reach
- 9.5 mm
- Hex size
- 21 mm
- Terminal
- SAE
- Gap
- 1.8 mm
Champion 66 replacement spark plugs
- Accel 198
- Accel 498
- ACDelco R44SX
- ACDelco R45SX
- ACDelco R46SX Buy from Amazon
- ACDelco R46SZ Buy from Amazon
- ACDelco R47SX
- Autolite 565
- Autolite 566
- Autolite 567
- Autolite 847 Buy from Amazon
- Bosch WR10FCY
- Bosch WR10FCZ
- Bosch WR10FY
- Bosch WR9FCY
- Bosch WR9FCZ
- Bosch WR9FPY
- Bosch WR9FPZ
- Bosch WR9FY
- Champion RJ12Y6
- Champion RJ12YC6
- Champion RJ18Y6
- Champion RJ18Y8
- Champion RJ18YC6
- Champion RJ18YC6T04
- Champion RJ18YC8
- Denso W14PRU15
- Denso W16PRU15
- Denso W9PRU15
- Denso W9PRU20
- Mighty M4R426
- Mighty M4R826
- Mighty M4R828
- Mopar 4339428
- Motorcraft AR426
- Motorcraft AR526
- Motorcraft AR826
- Motorcraft AR828
- Motorcraft AS42C6
- Motorcraft AS827
- Motorcraft AS82C7
- Prestolite 14R42
- Prestolite 14R426
- Prestolite 14R42A
- Prestolite 14R52
- Prestolite 14R526
- Prestolite 14R52A
- Splitfire SF8E6
- Splitfire SF8G6
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 Champion 66 on Amazon
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