Product details:
REPLACES PART NUMBER: 12563554, 1105, 1110, 80034, 7052, 025020212, GP39703.
Upgraded dual coil design 100 hotter 20% quicker.
Fits all 1982 - 2005 6.5L 6.2L chevrolet GMC(does not fit 6.6L DURAMAX).

More details:
Product Description

Quality Test: ISO/TS16949; ISO9001: 2008

Built to Strict Quality Control Standards

Upgraded Dual Coil Design 100* Hotter 20% Quicker

Professional Installation is Highly Recommended

No Instruction Included

Package Including:

8X Glow Plug

As Pictures Shown

Fitment:

Fits All 82 - 05 6.5L 6.2L Chevrolet GMC

(Does Not Fit 6.6L Duramax)Note:

Pls Confirm the Item if It Matches Your Vehicle Before You Purchase.