Home About  Catalog Index Ordering Info  E-mail

Spark plugs

I stock Champion and Autolite brand plugs (except the CM6 which is made be NGK). Champion model X and 3X plugs are 3-piece take-apart design with the fine wire electrode needed for many of the early magneto systems. Other plugs coming real soon.

The ignition tested is a plug with a 5mm gap that is used to test for spark outside the engine. It has an alligator clip for convenient attachment to the nearest ground. Any high-tension magneto or coil should jump this gap in open air if it is to jump an .025 gap in the engine under compression.

The Champion Y82 is good for larger models.

 

Order number

Description

Picture

Price each

SP22

Autolite 3095, 1/2" pipe thread

 

5.00

SP04

Champion W14, 7/8"

 

8.00

SP05

Champion W18, 7/8"

 

8.00

SP25

Autolite 3076, 7/8"

 

5.00

SP06

Champion W20, 7/8" out of stock

 

8.00

SP27

Autolite 3077, 7/8"

 

Discontinued

SP08

Champion D16, 18mm

 

3.50

SP28

Autolite 386, 18mm

 

5.00

SP09

Champion D21, 18mm

 

3.50

SP10

Champion D23, 18mm

 

7.00

SP12

Champion H12, 14mm

 

3.50

SP13

Champion J8C, 14mm

 

3.50

SP14

Champion J11C, 14mm

 

3.50

SP15

Champion RJ12C, 14mm

 

3.50

SP35

Autolite AR72, 14mm, cut-back electrode, recommended for Maytag twin

 

4.00

SP16

Champion CJ8, 14mm

 

3.50

SP18

Champion Y82, 10mm

 

9.00

SP50

Gap gauge, round

 

2.50