English | Spanish | French

BG SPARK PLUGS

BG's Iridium Electrode Spark Plugs Are Designed To Run Cooler, Last Longer, For Today's Clean Burn Engines. . .

Consistent long-term performance has established BG's reputation for engineering excellence.

BG Spark Plugs
Plug Type Thread
Size
Thread
Reach
Model Heat
Range
Shielding
Thread
Resistor Installed
Height
Hex Size Std. Gap
Unshielded
Unshielded Spark Plug Drawing
7/8"-18 5/8" RB212-1 Medium - Yes 2-11/32" 15/16" .015"
7/8"-18 5/8" RB105-1 Cold - Yes 3-7/16" 15/16" .015"
7/8"-18 1" RB114-1 Cold - Yes 3-1/16" 15/16" .015"
18mm 1/2" RB485-1 Medium - Yes 2-15/32" 7/8" .015"
Shielded
Shielded Spark Plug Drawing
7/8"-18 5/8" RB118SD Cold 3/4"-20 Yes 2-3/32" 15/16" .015"
18mm 1/2" RBH485SD Cold 3/4"-20 Yes 2-1/4" 7/8" .015"
18mm 13/16" BG341-1 Medium 3/4"-20 Yes 2-1/2" 7/8" .014"

All models have two iridium ground electrodes except:
  - Model BG341-1 has a massive nickel electrode (3 prongs).
  - Model RB777 -1 and -2 have one iridium "j" electrode.

Plug Type Thread
Size
Thread
Reach
Model Heat
Range
Shielding
Thread
Resistor Installed
Height
Hex Size Std. Gap
Unshielded
J-Wire Spark Plug Drawing
18mm 13/16" RB777-1 Cold - Yes 3-17/32" 7/8" .012"
18mm 13/16" RB777-2 Cold - Yes 3-17/32" 7/8" .012"
18mm 13/16" RB778-1 Cold - Yes 3-17/32" 7/8" .012"
18mm 13/16" RB778-2 Cold - Yes 3-17/32" 7/8" .012"

CALL FACTORY FOR LATEST NEWS ABOUT SPARK PLUGS

The model listed above has electrodes fitted with iridium discs held in place by a double retention system.
The design also utilizes a monolithic resistor set-up.

(BG Spark Plugs continued on page 51)
Back | Catalog Index | Next