Komatsu K series Weld-on Center Adapter K1050M30/K1080M70/K1090M85

Products information
1) Material: Low alloy steel
2) Surface: Standard yellow or as your request
3) Hardness: 360-420 HBW
4) Impact Strength: ≥22J (at 25°C)
5) Package: packed in plywood cases
6) Application :used in Excavator buckets, Loader buckets to connect replaceable, wear-resistant teeth, crucial for maximizing digging force in tough materials.

Our Aftermarket replacement Komatsu K Series Weld-on Center Adapter are the most widely used standard GET parts for medium Komatsu excavators. Suitable for high-frequency daily construction, soil excavation, sand and gravel handling, road construction and moderate rock digging. Unlike heavy-duty XS series adapters for mining, K-series adapters are optimized for standard-duty workloads, balancing durability and cost-effectiveness. With rigid welded installation and stable pin-locking system, it minimizes tooth loosening and premature wear under long-term cyclic operation, greatly reducing daily maintenance frequency for construction fleets.

The weld- on adapter K3025M15 are widely used in models PC95-PC138/WA180-WA270 , the universal bucket teeth are K15RC/K15RP with side pin locking KP15C;

The weld- on adapter K1030M20 are widely used in models PC150-PC210/WA320-WA470 ,the universal bucket teeth are K20RC/K20RP with side pin locking KP20C;

The weld- on adapter K1040M25 are widely used in models PC220-PC270/WA480, the universal bucket teeth are K25RC/K25RP with side pin locking KP25C;

The weld- on adapter K1045M30/K1050M30 are widely used in models PC290-PC390/WA480, the universal bucket teeth are K30RC/K30RP with side pin locking KP30C;

The weld- on adapter K1055M40/K1060M40 are widely used in models PC350.PC400/WA500, the universal bucket teeth are K40RC/K40RP with side pin locking KP40C;

The weld- on adapter K125050/K1060M50 are widely used in models PC450-PC500/WA600, the universal bucket teeth are K50RC/K50RP with side pin locking KP50C;

The weld- on adapter K1070M70/K1080M70/21M-939-2261/K125070 are widely used in models PC600-PC700/WA700, the universal bucket teeth are K70RC/K70RP with side pin locking KP70C;

The weld- on adapter K1080M85/K131085/K1090M85/K130085 are widely used in models PC750-PC850/WA800-WA900, the universal bucket teeth are K85RC/K85RP with side pin locking KP85C;

Loose fitting, deformed adapters and poor welding are the main causes of frequent tooth loss and pin damage on standard excavator buckets. Komatsu K-series weld-on center adapter features standardized cavity size, stable structural rigidity and anti-fatigue performance. The integrated welded structure eliminates bolt loosening risks. It effectively solves common job-site problems such as tooth wobble, pin abrasion, uneven force and premature adapter breakage, keeping the bucket tooth system stable and reducing unnecessary downtime.

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Model	Part number	Alternative number	Description
PC95-PC138.WA180-WA270	K3025M15	K3025M15-25	Komatsu Weld-on Center Adapter
PC150-PC210.WA320-WA470	K1030M20	K1030M20-30	Komatsu Weld-on Center Adapter
PC220-PC270.WA480	K1040M25	K1040M25-40	Komatsu Weld-on Center Adapter
PC290-PC390.WA480	K1045M30	K1045M30-45	Komatsu Weld-on Center Adapter
PC290-PC390.WA480	K1050M30	K1050M30-50	Komatsu Weld-on Center Adapter
PC350.PC400.WA500	K1055M40	K1055M40-55	Komatsu Weld-on Center Adapter
PC350.PC400.WA500	K1060M40	K1060M40-60	Komatsu Weld-on Center Adapter
PC450-PC500.WA600	K125050	K125050	Komatsu Weld-on Center Adapter
PC450-PC500.WA600	K1060M50	K1060M50-60	Komatsu Weld-on Center Adapter
PC600-PC700.WA700	K1070M70	K1070M70-70	Komatsu Weld-on Center Adapter
PC600-PC700.WA700	K1080M70	K1080M70-80	Komatsu Weld-on Center Adapter
PC600-PC700.WA700	21M-939-2261	21M-939-2261	Komatsu Weld-on Center Adapter
PC600-PC700.WA700	K125070	K125070	Komatsu Weld-on Center Adapter
PC750-PC850.WA800-WA900	K1080M85	K1080M85-80	Komatsu Weld-on Center Adapter
PC750-PC850.WA800-WA900	K131085	K131085	Komatsu Weld-on Center Adapter
PC750-PC850.WA800-WA900	K1090M85	K1090M85-90	Komatsu Weld-on Center Adapter
PC750-PC850.WA800-WA900	K130085	K130085	Komatsu Weld-on Center Adapter