COMPATIBLE IGNITION COIL JONSERED : 625 , 630 , 670 MCCULLOCH : MAC CAT 318 , MAC CAT 335 , MAC CAT 436 , MAC CAT 440 , MAC CAT 441 MODEL - TECHNICAL SPECIFICATIONS WIDTH - HEIGHT - LENGTH - HOLE SPACING - PART NUMBER: 18270346 ORIGINAL PART NUMBER: 530 03 91-98 , 530 03 91-67 , 530 05 22-77 SR