• 20Y-54-52231 20Y5452231 Stopper KOMATSU Excavator Spare Parts For PC160 PC180 PC200

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• Specifiion

• Key functions

1.Prevents Overextension: Stops the boom, arm, or bucket from moving beyond their design limits—avoiding bent pins, cracked brackets, or damaged hydraulic cylinders (common issues with missing or worn stoppers).

2.Reduces Shock Loads: Absorbs the impact of sudden stops (e.g., when the arm hits its maximum extension quickly), reducing vibration and wear on the entire linkage system.

3.Ensures Operational Safety: Prevents "mechanical runaway" (e.g., the bucket dropping unexpectedly if hydraulic pressure fails) by acting as a secondary physical stop.

4.Maintains Alignment: Helps keep the linkage components (boom, arm, bucket) properly aligned during operation—ensuring smooth hydraulic cylinder movement and reducing uneven wear on pins and bushings.

• Compatible models

CRAWLER CARRIERS CD110R
EXCAVATORS PC1250 PC1250SP PC128US PC128UU PC130 PC138 PC138US PC160 PC180 PC200 PC200LL PC200SC PC210 PC220 PC228 PC228US PC230 PC230NHD PC240 PC270 PC270LL PC290 PC300 PC300HD PC300LL PC308 PC340 PC350 PC350LL PC360 PC380 PC400 PC450 PC600 PC650 PC750 PC750SE PC78MR PC78US PC78UU PC800 PC800SE PC850 PC850SE PW130 PW140 PW160 PW180 PW200 PW220
OTHER BP500 Komatsu

• More other stopper applied to KOMATSU heavey machine

• Directory listing

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .