Description Husqvarna genuine OEM collar, inner 4" lh thread.Husqvarna 47421Factory genuine Husqvarna part Related Products Collar 4" Blade Inner | 523211001 MSRP: Was: Now: $172.20 Add to Cart The item has been added Blade Collar, 4" Inner | 521937305 MSRP: Was: Now: $117.60 Add to Cart The item has been added Collar, 4" Inner Blade | 523211002 MSRP: Was: Now: $293.00 Add to Cart The item has been added Blade Collar, 4" Inner, B.O. | 521937303 MSRP: Was: Now: $119.00 Add to Cart The item has been added Inner Collar | 58292 MSRP: Was: Now: $69.30 Add to Cart The item has been added Inner Collar | 172034 MSRP: Was: Now: $30.45 Add to Cart The item has been added Collar, Inner | 542041048 MSRP: Was: Now: $290.00 Add to Cart The item has been added Collar, Inner 4 1/2" Pls6020 | 541203911 MSRP: Was: Now: $446.60 Add to Cart The item has been added Collar, Inner 4 1/2" 41Mag | 541203128 MSRP: Was: Now: $236.50 Add to Cart The item has been added