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4043000173 PIN BUCKET SDLG 956L Wheel Loader

4043000173 PIN BUCKET SDLG 956L Wheel Loader

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Product Description: BUCKET LOWER PIN 4043000173 for SDLG 956L Wheel Loader

The Bucket Lower Pin 4043000173, officially designated as LGB301-80×140×260-40Cr under the Chinese national LGB301 standard, is a genuine OEM component for the SDLG 956L wheel loader and other compatible LG series models within the 5‑ton class wheel loader family, including the LG956L, L956F, L936F, LG953, LG958, LG968, and L955. This pin is a critical structural fastener within the loader‘s front working equipment linkage, serving as the fixed pivot axis that connects the bucket to the lift arm assembly at the bucket lower pin joint (铲斗下销). As a load‑bearing connecting element, it transmits the substantial digging and breakout forces generated during bucket penetration, loading, and rackback operations while allowing the bucket to articulate smoothly for loading and dumping cycles.

SDLG BUCKET LOWER PIN 4043000173 Parts Number List for SDLG 956L and Compatible Wheel Loader Models

1. Primary Bucket Lower Pin Assembly

Part Number	Part Name / Description	Application / Notes
4043000173	Bucket Lower Pin (铲斗下销) — Pin Shaft	SDLG 956L, LG956L, L956F, 956HL, L936F, LG953, LG958, LG968, L955 wheel loaders; high‑strength 40Cr alloy steel pin; 80 mm bearing journal diameter, 140 mm working length, 260 mm overall length; used as lower bucket pivot point connecting bucket to lift arm linkage; OEM genuine SDLG spare part

2. Associated LGB301 Series Pins for SDLG Wheel Loaders (Working Device Accessories)

Part Number	Part Name / Description	Application / Notes
4043001506	Pin Shaft (销轴)	SDLG L956F loader; 95 mm diameter pin shaft for working device accessories
4043001505	Bucket Rod Pin (铲斗拉杆销)	SDLG LG936L, LG956L, LG958L wheel loaders; pin for bucket rod linkage
4043001507	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; 85 mm diameter pin for weld‑on installation in linkage system
4043000728	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; 85 mm weld pin; 40Cr material
4043001422	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; larger 110 mm weld pin for heavy‑duty linkage applications

3. Associated LGB302 Series Bushing (Mating Component — Replace Together for Joint Overhaul)

Part Number	Part Name / Description	Application / Notes
4043000026	Bushing (轴套)	SDLG 953 / 956L wheel loader; 80 mm inner diameter × 90 mm outer diameter bushing; steel‑backed plain bearing; mating component for 4043000173 bucket lower pin

4. Additional LGB302 Series Bushings for SDLG Wheel Loaders (Reference)

Part Number	Part Name / Description	Application / Notes
4043001508	Bushing (轴套)	85 mm × 95 mm bushing; mates with 85 mm pins; steel‑backed plain bearing
4043000027	Bushing (轴套)	85 mm × 95 mm link rod–rocker arm pin bushing; material grade B3
4043000439	Bushing (轴套)	85 mm × 80 mm bushing variant for L956F Loader Working Device Accessories
4043000467	Bushing (轴套)	110 mm × 80 mm bushing for larger pin joints
4043000752	Bushing (轴套)	95 mm × 104 mm bushing variant

5. Associated LGB307 Series Dust Rings (Contamination Exclusion Seals)

Part Number	Part Name / Description	Application / Notes
4043000055	Dust Ring / PUSTRING (防尘圈)	80 mm dust seal for contamination exclusion at pin joint entrance; directly matched to 4043000173 bucket lower pin; protects bearing surfaces
4043000056	Dust Ring / PUSTRING (防尘圈)	85 mm dust sealing ring; protects larger pin joints
4043000057	Dust Ring / PUSTRING (防尘圈)	95 mm dust sealing ring
4043000058	Dust Ring / PUSTRING (防尘圈)	110 mm dust sealing ring for larger diameter pin joints

6. Associated LGB303 Series Gaskets

Part Number	Part Name / Description	Application / Notes
4043000033	Sealing Gasket (密封垫片)	Gasket seal for joint assembly; 80 mm × 130 mm × 1 mm
4043000034	Sealing Gasket (密封垫片)	Gasket seal for joint assembly; thicker 2 mm variant
4043000035	Gasket Seal (垫片)	Gasket seal for joint assembly; matches 85 mm pin applications
4043000043	Gasket (垫片)	Gasket seal for larger diameter pin joints

7. Associated LGB308 Series O‑Rings

Part Number	Part Name / Description	Application / Notes
4043000059	O‑Ring Seal (O型圈)	128 mm inner diameter × 12 mm cross‑section; used for hydraulic sealing applications in working device assembly

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Product Detail

Product Description: BUCKET LOWER PIN 4043000173 for SDLG 956L Wheel Loader

SDLG BUCKET LOWER PIN 4043000173 Parts Number List for SDLG 956L and Compatible Wheel Loader Models

1. Primary Bucket Lower Pin Assembly

Part Number	Part Name / Description	Application / Notes
4043000173	Bucket Lower Pin (铲斗下销) — Pin Shaft	SDLG 956L, LG956L, L956F, 956HL, L936F, LG953, LG958, LG968, L955 wheel loaders; high‑strength 40Cr alloy steel pin; 80 mm bearing journal diameter, 140 mm working length, 260 mm overall length; used as lower bucket pivot point connecting bucket to lift arm linkage; OEM genuine SDLG spare part

2. Associated LGB301 Series Pins for SDLG Wheel Loaders (Working Device Accessories)

Part Number	Part Name / Description	Application / Notes
4043001506	Pin Shaft (销轴)	SDLG L956F loader; 95 mm diameter pin shaft for working device accessories
4043001505	Bucket Rod Pin (铲斗拉杆销)	SDLG LG936L, LG956L, LG958L wheel loaders; pin for bucket rod linkage
4043001507	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; 85 mm diameter pin for weld‑on installation in linkage system
4043000728	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; 85 mm weld pin; 40Cr material
4043001422	Weld Pin / Pin Shaft (销轴)	SDLG wheel loader; larger 110 mm weld pin for heavy‑duty linkage applications

3. Associated LGB302 Series Bushing (Mating Component — Replace Together for Joint Overhaul)

Part Number	Part Name / Description	Application / Notes
4043000026	Bushing (轴套)	SDLG 953 / 956L wheel loader; 80 mm inner diameter × 90 mm outer diameter bushing; steel‑backed plain bearing; mating component for 4043000173 bucket lower pin

4. Additional LGB302 Series Bushings for SDLG Wheel Loaders (Reference)

Part Number	Part Name / Description	Application / Notes
4043001508	Bushing (轴套)	85 mm × 95 mm bushing; mates with 85 mm pins; steel‑backed plain bearing
4043000027	Bushing (轴套)	85 mm × 95 mm link rod–rocker arm pin bushing; material grade B3
4043000439	Bushing (轴套)	85 mm × 80 mm bushing variant for L956F Loader Working Device Accessories
4043000467	Bushing (轴套)	110 mm × 80 mm bushing for larger pin joints
4043000752	Bushing (轴套)	95 mm × 104 mm bushing variant

5. Associated LGB307 Series Dust Rings (Contamination Exclusion Seals)

Part Number	Part Name / Description	Application / Notes
4043000055	Dust Ring / PUSTRING (防尘圈)	80 mm dust seal for contamination exclusion at pin joint entrance; directly matched to 4043000173 bucket lower pin; protects bearing surfaces
4043000056	Dust Ring / PUSTRING (防尘圈)	85 mm dust sealing ring; protects larger pin joints
4043000057	Dust Ring / PUSTRING (防尘圈)	95 mm dust sealing ring
4043000058	Dust Ring / PUSTRING (防尘圈)	110 mm dust sealing ring for larger diameter pin joints

6. Associated LGB303 Series Gaskets

Part Number	Part Name / Description	Application / Notes
4043000033	Sealing Gasket (密封垫片)	Gasket seal for joint assembly; 80 mm × 130 mm × 1 mm
4043000034	Sealing Gasket (密封垫片)	Gasket seal for joint assembly; thicker 2 mm variant
4043000035	Gasket Seal (垫片)	Gasket seal for joint assembly; matches 85 mm pin applications
4043000043	Gasket (垫片)	Gasket seal for larger diameter pin joints

7. Associated LGB308 Series O‑Rings

Part Number	Part Name / Description	Application / Notes
4043000059	O‑Ring Seal (O型圈)	128 mm inner diameter × 12 mm cross‑section; used for hydraulic sealing applications in working device assembly

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Product Category

4043000173 PIN BUCKET SDLG 956L Wheel Loader

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Product Description: BUCKET LOWER PIN 4043000173 for SDLG 956L Wheel Loader

SDLG BUCKET LOWER PIN 4043000173 Parts Number List for SDLG 956L and Compatible Wheel Loader Models

1. Primary Bucket Lower Pin Assembly

2. Associated LGB301 Series Pins for SDLG Wheel Loaders (Working Device Accessories)

3. Associated LGB302 Series Bushing (Mating Component — Replace Together for Joint Overhaul)

4. Additional LGB302 Series Bushings for SDLG Wheel Loaders (Reference)

5. Associated LGB307 Series Dust Rings (Contamination Exclusion Seals)

6. Associated LGB303 Series Gaskets

7. Associated LGB308 Series O‑Rings

Product Description: BUCKET LOWER PIN 4043000173 for SDLG 956L Wheel Loader

SDLG BUCKET LOWER PIN 4043000173 Parts Number List for SDLG 956L and Compatible Wheel Loader Models

1. Primary Bucket Lower Pin Assembly

2. Associated LGB301 Series Pins for SDLG Wheel Loaders (Working Device Accessories)

3. Associated LGB302 Series Bushing (Mating Component — Replace Together for Joint Overhaul)

4. Additional LGB302 Series Bushings for SDLG Wheel Loaders (Reference)

5. Associated LGB307 Series Dust Rings (Contamination Exclusion Seals)

6. Associated LGB303 Series Gaskets

7. Associated LGB308 Series O‑Rings

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