GLOW PLUG COLD R5 FOR SUMMER / HOT CONDITIONS
Genuine HPI quality spare part for easy maintenance and repairs. See below for kit reference.

GLOW PLUG MEDIUM R3 FOR .12 TO.21 ENGINES
Power Plugs for Nitro car and truck engines! HPI Power Plugs use a unique blend of platinum and iridium metals to produce a range of quality glow plugs that is suitable for hobbyists and racers. Recommended Power Plugs for HPI engines #1502 Medium R3 - 12R XS #1503 Medium Cold R4 - 21BB/S-25 #1504 Cold R5 - All HPI .15 engines (T-15, 15FE, etc.)

GLOW PLUG MEDIUM COLD R4 FOR 0.25 TO 0.28 ENGINES
GLOW PLUG MEDIUM COLD R4 FOR 0.25 TO 0.28 ENGINES

GLOW PLUG COLD R8 FOR TURBO HEAD ENGINES
The HPI 1508 turbo glow plug fits all nitro engines with a turbo head (i.e. team orion). The unique blend of platinum and iridium metals gives optimal performance, easy starting and a long lifetime.