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BLACKJACK™ EXTENSION FOR CATERPILLAR® G3520C & G3600 ENGINES OUTPERFORMS ALL OTHER EXTENSIONS...
AND AT LOWER COST!!!

BlackJack Extension for G3520C and G3600

BG's BlackJack™ Extension P/N 25717 Is Experiencing Service Life In Excess Of 7000 Hours With No Field Failures!

PATENTED PRODUCT
Proprietary elastomeric sealing sleeve eliminates surface arcing at the coil Interface.
“Easy-Grip” rib design provides for ease of installation & removal.
Intelli-Shroud™ spark plug terminal reduces corona formation.
Dual PTFE coated O-rings provide better sealing pressure on the spark plug insulator to inhibit flashover.
Deeper spark plug well extends flashover coverage.
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