Copperhead chainsaw chain is engineered from premium German steel and delivers professional-grade performance for demanding cutting tasks. Chrome-plated cutters are precisely angled to maximize cutting efficiency, while hardened drive links and rivets resist stretching and wear. The optimized design minimizes vibration and ensures balanced operation, reducing operator fatigue during extended use.

Requires 3/16" File

Replaces

• CARLTON: K1L-78G
• STIHL: 23RS 78

Fits Models

• ALPINA/CASTOR: A-40, C-40, CP-41, CP-45, CP-540, CP-600, P-370, P-410, Pro Series 45, Pro Series 540, Pro Series 600, P460, P510
• CUB CADET: CS5018, CS5220
• DOLMAR: PS460, PS510, PS5100, PS5105, PS540, 109, 110, 111, 115
• EFCO: 147, 152, 156, 165
• HUSQVARNA: 133, 136, 137, 140, 1400, 140S, 141, 142, 154, 1600, 234, 238, 240, 242, 242XP, 246, 254, 254XP, 257, 261, 262, 262XP, 33, 336, 338XPT, 339XP, 340, 340E, 340SE, 340SG, 345, 346, 346XP, 346XP E-TECH, 346XPG, 350, 351, 353, 353E-TECH, 353G E-TECH, 355, 357, 357XP, 357XPG, 359, 359E-TECH, 36, 360, 362, 362 XP, 38, 40, 41, 42, 435, 435E, 44, 440, 440E, 444, 445, 445E, 45, 450, 450 50th Anniversary, 450E, 455, 455 RANCHER, 455E RANCHER, 460, 460 RANCHER, 466, 49, 50, 51, 543XP, 543XPG, 545, 545 MARK II, 55, 55 RANCHER, 550XP, 550XP MARK II, 550XPG, 555, 560XP, 560XPG, 57
• JOHN DEERE: CS46, CS52, CS56, CS62, 300CS, 45EV, 450V, 46EV
• JONSERED: CS2145, CS2149, CS2150, CS2152, CS2153, CS2156, CS2159, CS2163, CS2240, CS2245, CS2250, CS2252, CS2253, CS2255, CS2258, 2050, 2051, 2054, 2055, 2149, 370, 410, 420, 425, 435, 45, 450, 451, 455, 49, 490, 50, 51, 510, 52, 520, 521, 525, 535, 590
• POULAN: Farmhand Series, Predator Series, 2700, 2750, 2800, 285, 2900, 295, 3000, 305, 3050, 306SA, 310, 3100, 315, 3300, 335, 336, 4600, 4620
• POWERHORSE: 190502, 190503, 190557, 190559
• REDMAX: G390, G450, G455, G5000, G5300
• REMINGTON: RM5118, RM5520
• SOLO: 613, 614, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 643, 644, 645, 647, 651, 652, 654, 656
• TANAKA: ECS-400, ECS-415, ECS-4501, TCS-40
• TROY BILT: TB4620, TB4920, TB5018, TB5020

Dimensions:
PITCH: 0.3250"
DRIVE LINKS: 78
GAUGE: 0.0500"
STYLE: without Bumper Link