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9R-0139
Our OEM 9R0139 wheel loader bushing is a premium replacement part engineered for Caterpillar machinery, adhering strictly to original equipment manufacturer standards. It is compatible with a wide range of CAT models, including BACKHOE LOADERS (438, 416, 424D, etc.) and COMPACT WHEEL LOADERS (902, 908, 906). Crafted to deliver exceptional performance in heavy-duty operations, this bucket bush ensures precise fitment and seamless integration with loader systems, minimizing equipment downtime and maximizing productivity on construction sites.

Made from high-strength alloy steel, the bushing undergoes heat treatment and intermediate frequency induction quenching, achieving optimal inner and outer hardness. This enhances its crack resistance, enabling it to withstand extreme working conditions and extend service life significantly.
Advanced material properties and heat treatment processes reduce wear between the bushing and pin shaft during frequent bucket loading and unloading, lowering part replacement frequency and operational costs.
Manufactured to CAT’s original specifications, the bushing guarantees perfect compatibility with target loader models, maintaining ideal clearance for smooth equipment operation after installation.
As a critical construction machinery bushing component, it endures large radial and axial loads. Adapting to complex tasks like heavy-duty excavation and material handling.
Some variants feature a self-lubricating design, reducing friction and eliminating the need for frequent lubrication. Special surface treatments such as phosphating also boost corrosion resistance, guarding against rain, soil, and oil erosion in harsh environments.
This high-performance loader bushing is ideal for construction, mining, and earthmoving projects. It is widely used in CAT backhoe loaders and compact wheel loaders, supporting heavy-duty operations such as excavation, material handling, and site leveling. Whether working in muddy construction sites, dusty mining areas, or rugged outdoor environments, our bushing maintains stable performance, making it a reliable choice for heavy equipment maintenance and upgrading.
Our OEM 9R0139 wheel loader bushing is a premium replacement part engineered for Caterpillar machinery, adhering strictly to original equipment manufacturer standards. It is compatible with a wide range of CAT models, including BACKHOE LOADERS (438, 416, 424D, etc.) and COMPACT WHEEL LOADERS (902, 908, 906). Crafted to deliver exceptional performance in heavy-duty operations, this bucket bush ensures precise fitment and seamless integration with loader systems, minimizing equipment downtime and maximizing productivity on construction sites.

Made from high-strength alloy steel, the bushing undergoes heat treatment and intermediate frequency induction quenching, achieving optimal inner and outer hardness. This enhances its crack resistance, enabling it to withstand extreme working conditions and extend service life significantly.
Advanced material properties and heat treatment processes reduce wear between the bushing and pin shaft during frequent bucket loading and unloading, lowering part replacement frequency and operational costs.
Manufactured to CAT’s original specifications, the bushing guarantees perfect compatibility with target loader models, maintaining ideal clearance for smooth equipment operation after installation.
As a critical construction machinery bushing component, it endures large radial and axial loads. Adapting to complex tasks like heavy-duty excavation and material handling.
Some variants feature a self-lubricating design, reducing friction and eliminating the need for frequent lubrication. Special surface treatments such as phosphating also boost corrosion resistance, guarding against rain, soil, and oil erosion in harsh environments.
This high-performance loader bushing is ideal for construction, mining, and earthmoving projects. It is widely used in CAT backhoe loaders and compact wheel loaders, supporting heavy-duty operations such as excavation, material handling, and site leveling. Whether working in muddy construction sites, dusty mining areas, or rugged outdoor environments, our bushing maintains stable performance, making it a reliable choice for heavy equipment maintenance and upgrading.
We specialize in a full range of construction machinery parts, including:
Bushings: Excavator bushings, loader bushings, construction machinery bushings (e.g., 8J5778, 2417381 for CAT)
Pin Shafts: Excavator pin shafts, loader pin shafts, customized pin shafts for various machinery brands
Customization Services: Tailored pin shaft & bushing solutions according to customer drawings and specifications, compatible with leading brands like CAT, KOMATSU, SANY, and KOBELCO.
| Caterpillar pin and bushing | |||||
| OEM | OEM | OEM | OEM | OEM | OEM |
| 4385850 | 5346337 | 4I4811 | 2G8622 | 7K9343 | 2417381 |
| 2299247 | 5356287 | 2641702 | 2G8614 | 7K9347 | 2285615 |
| 3735700 | 5356344 | 4I4809 | 2G8735 | 9R4677 | 2417380 |
| 3792693 | 4I4618 | 4I4621 | 8D4673 | 1883064 | 2417379 |
| 3792813 | 2343803 | 1762278 | 2G8609 | 2375330 | 2357772 |
| 4368990 | 1865662 | 4I4812 | 2G8617 | 3607295 | 2285654 |
| 4385844 | 0875805 | 3150800 | 2K6413 | 3735760 | 2402914 |
| 4385846 | 2543053 | 2602390 | 5K0990 | 3792545 | 2V0707 |
| 4385847 | 2543052 | 1807752 | 6K8308 | 3792546 | 3T0996 |
| 5356345 | 2285614 | 2512537 | 2909181 | 3792689 | 1024560 |
| 5228212 | 2285617 | 4I4620 | 2357770 | 3792690 | 8X0742 |
| 5228227 | 2343811 | 1893922 | 1V7038 | 3792769 | 2370945 |
| 5228230 | 4I6718 | 1865730 | 1857220 | 4177570 | 2343749 |
| 5228232 | 4T1422 | 2343931 | 2285621 | 2402913 | 7Y9915 |
| 5228329 | 4V8519 | 1865663 | 875533 | 2357769 | 1985529 |
| 5230026 | 4V8675 | 2602385 | 875548 | 2402912 | 2487835 |
| 5230028 | 5K0984 | 1865637 | 875847 | 2444360 | 2487857 |
| 5230037 | 5K3490 | 2343930 | 990721 | 2417382 | 2291092 |
| 5233719 | 7J1335 | 8W5293 | 1066872 | 2291096 | 2291095 |
| 5233721 | 7J9682 | 2G8630 | 1164825 | 2444277 | 4V8673 |
| 7K9591 | 8K0533 | 1372817 | 2G8633 | 9V3852 | 2627044 |
| 7P3454 | 9J5875 | 2081959 | 1680480 | 2K4502 | 2785454 |
| 7Y2396 | 9R0413 | 2096181 | 9R1107 | 7K9640 | 2787695 |
| 1372819 | 9R4110 | 2285619 | 9R1104 | 1V9148 | 4I6897 |
| 7Y3427 | 9R7891 | 2291091 | 5K0987 | 1V7001 | 1461843 |
| 1372919 | 9R9475 | 2370944 | 7J1338 | 1V8241 | 9R0162 |
| 7Y3428 | 9R9505 | 2402916 | 8K5757 | 2V4876 | 9R3092 |
| 1433841 | 9T2883 | 2417280 | 9T8676 | 3J6484 | 9R5828 |
| 8E6752 | 4893010 | 2627043 | 990718 | 4K6780 | 9R0170 |
| 9R0614 | 9R0321 | 9R0147 | 9R0111 | ||
Excavator bushing
Excavator pin
Loader bushing
Loader pin
Construction machinery pins and bushings
>> Partial Applicable Vehicle Model Display
| CAT | CAT301.7 CR | CAT313 GC | CAT323 GX | CAT333 |
| CAT301.4 CR | CAT312 GC | CAT323 | CAT374 | |
| CAT302 CR | CAT326 GC | CAT316 GC | CAT395 | |
| CAT303 CR | CAT326 | CAT 318D2L | CAT352 | |
| CAT305.5 | CAT320 GX | CAT330 | CAT355 | |
| CAT306.5 | CAT320 GC | CAT336 | CAT330 GC | |
| CAT307.5 | CAT320 | CAT350 | ||
| CAT307 | CAT323 GC | CAT340 | ||
| KOMATSU | PC100-3/5/6 | PC200-2/3/5/6/7/8 | PC270-6/7/8 | PC360-7 |
| PC120-2/3/5/6 | PC220-2/3/5/6/7/8 | PC290-10/11 | PC360LC-10/11 | |
| PC130-6/8/11 | PC228-1/2/3/8/10/11 | PC300LC-1/2/3/5/6/7/8 | PC390LC-10/11 | |
| PC150-1/3/5/6 | PC240-6/8/10/11 | PC350-8 | ||
| PC160-6/7/8 | PC250-6 | PC350LC-6/8/10/11 | ||
| SANY | SY135C | SY75C | SY245H-S | SY415H-S |
| SY200C-S | SY335BH-S | SY95C | SY375IDS | |
| SY205C-S | SY275H | SY485H-S | SY550H | |
| SY215E | SY235H-S | SY485GLC-S | ||
| SY215C-S | SY155H | SY305H-S | ||
| KOBELCO | SK210LC-10 | SK200-10 | SK60-8 | SK140LC-8 |
| SK130-11 | SK250-10 | SK380XD-10 | SK460-8 | |
| SK75-11 | SK260LC-10 | SK220XD-10 | ||
| SK350LC-10 | SK330-10 | SK150LC-11 | ||
| Hitachi | ZX130-6A | ZX260K-6A | ZX210LC-5A | ZX490LCH-5A |
| ZX240-5A | ZX260LCH-5A | ZX350-6A Pro | ZX220K-6A | |
| ZX250-6A | ZX200C-6A | ZX360K-5A | ZX520LCH-6A | |
| ZX250K-5A | ZH200-5A | ZX300-6A | ZX350-6A | |
| ZX250LC-5A | ZX210-6A | ZX300-5A | ZX500LCH-5A | |
| ZX260LC-6A | ZX210K-5A | ZX370K-6A | ZX220LC-6A | |
| ZX195-5A | ZX360H-5A | ZX370H-6A |
We specialize in a full range of construction machinery parts, including:
Bushings: Excavator bushings, loader bushings, construction machinery bushings (e.g., 8J5778, 2417381 for CAT)
Pin Shafts: Excavator pin shafts, loader pin shafts, customized pin shafts for various machinery brands
Customization Services: Tailored pin shaft & bushing solutions according to customer drawings and specifications, compatible with leading brands like CAT, KOMATSU, SANY, and KOBELCO.
| Caterpillar pin and bushing | |||||
| OEM | OEM | OEM | OEM | OEM | OEM |
| 4385850 | 5346337 | 4I4811 | 2G8622 | 7K9343 | 2417381 |
| 2299247 | 5356287 | 2641702 | 2G8614 | 7K9347 | 2285615 |
| 3735700 | 5356344 | 4I4809 | 2G8735 | 9R4677 | 2417380 |
| 3792693 | 4I4618 | 4I4621 | 8D4673 | 1883064 | 2417379 |
| 3792813 | 2343803 | 1762278 | 2G8609 | 2375330 | 2357772 |
| 4368990 | 1865662 | 4I4812 | 2G8617 | 3607295 | 2285654 |
| 4385844 | 0875805 | 3150800 | 2K6413 | 3735760 | 2402914 |
| 4385846 | 2543053 | 2602390 | 5K0990 | 3792545 | 2V0707 |
| 4385847 | 2543052 | 1807752 | 6K8308 | 3792546 | 3T0996 |
| 5356345 | 2285614 | 2512537 | 2909181 | 3792689 | 1024560 |
| 5228212 | 2285617 | 4I4620 | 2357770 | 3792690 | 8X0742 |
| 5228227 | 2343811 | 1893922 | 1V7038 | 3792769 | 2370945 |
| 5228230 | 4I6718 | 1865730 | 1857220 | 4177570 | 2343749 |
| 5228232 | 4T1422 | 2343931 | 2285621 | 2402913 | 7Y9915 |
| 5228329 | 4V8519 | 1865663 | 875533 | 2357769 | 1985529 |
| 5230026 | 4V8675 | 2602385 | 875548 | 2402912 | 2487835 |
| 5230028 | 5K0984 | 1865637 | 875847 | 2444360 | 2487857 |
| 5230037 | 5K3490 | 2343930 | 990721 | 2417382 | 2291092 |
| 5233719 | 7J1335 | 8W5293 | 1066872 | 2291096 | 2291095 |
| 5233721 | 7J9682 | 2G8630 | 1164825 | 2444277 | 4V8673 |
| 7K9591 | 8K0533 | 1372817 | 2G8633 | 9V3852 | 2627044 |
| 7P3454 | 9J5875 | 2081959 | 1680480 | 2K4502 | 2785454 |
| 7Y2396 | 9R0413 | 2096181 | 9R1107 | 7K9640 | 2787695 |
| 1372819 | 9R4110 | 2285619 | 9R1104 | 1V9148 | 4I6897 |
| 7Y3427 | 9R7891 | 2291091 | 5K0987 | 1V7001 | 1461843 |
| 1372919 | 9R9475 | 2370944 | 7J1338 | 1V8241 | 9R0162 |
| 7Y3428 | 9R9505 | 2402916 | 8K5757 | 2V4876 | 9R3092 |
| 1433841 | 9T2883 | 2417280 | 9T8676 | 3J6484 | 9R5828 |
| 8E6752 | 4893010 | 2627043 | 990718 | 4K6780 | 9R0170 |
| 9R0614 | 9R0321 | 9R0147 | 9R0111 | ||
Excavator bushing
Excavator pin
Loader bushing
Loader pin
Construction machinery pins and bushings
>> Partial Applicable Vehicle Model Display
| CAT | CAT301.7 CR | CAT313 GC | CAT323 GX | CAT333 |
| CAT301.4 CR | CAT312 GC | CAT323 | CAT374 | |
| CAT302 CR | CAT326 GC | CAT316 GC | CAT395 | |
| CAT303 CR | CAT326 | CAT 318D2L | CAT352 | |
| CAT305.5 | CAT320 GX | CAT330 | CAT355 | |
| CAT306.5 | CAT320 GC | CAT336 | CAT330 GC | |
| CAT307.5 | CAT320 | CAT350 | ||
| CAT307 | CAT323 GC | CAT340 | ||
| KOMATSU | PC100-3/5/6 | PC200-2/3/5/6/7/8 | PC270-6/7/8 | PC360-7 |
| PC120-2/3/5/6 | PC220-2/3/5/6/7/8 | PC290-10/11 | PC360LC-10/11 | |
| PC130-6/8/11 | PC228-1/2/3/8/10/11 | PC300LC-1/2/3/5/6/7/8 | PC390LC-10/11 | |
| PC150-1/3/5/6 | PC240-6/8/10/11 | PC350-8 | ||
| PC160-6/7/8 | PC250-6 | PC350LC-6/8/10/11 | ||
| SANY | SY135C | SY75C | SY245H-S | SY415H-S |
| SY200C-S | SY335BH-S | SY95C | SY375IDS | |
| SY205C-S | SY275H | SY485H-S | SY550H | |
| SY215E | SY235H-S | SY485GLC-S | ||
| SY215C-S | SY155H | SY305H-S | ||
| KOBELCO | SK210LC-10 | SK200-10 | SK60-8 | SK140LC-8 |
| SK130-11 | SK250-10 | SK380XD-10 | SK460-8 | |
| SK75-11 | SK260LC-10 | SK220XD-10 | ||
| SK350LC-10 | SK330-10 | SK150LC-11 | ||
| Hitachi | ZX130-6A | ZX260K-6A | ZX210LC-5A | ZX490LCH-5A |
| ZX240-5A | ZX260LCH-5A | ZX350-6A Pro | ZX220K-6A | |
| ZX250-6A | ZX200C-6A | ZX360K-5A | ZX520LCH-6A | |
| ZX250K-5A | ZH200-5A | ZX300-6A | ZX350-6A | |
| ZX250LC-5A | ZX210-6A | ZX300-5A | ZX500LCH-5A | |
| ZX260LC-6A | ZX210K-5A | ZX370K-6A | ZX220LC-6A | |
| ZX195-5A | ZX360H-5A | ZX370H-6A |
The OEM 9R0139 bushing is primarily made of 45# steel, 40Cr alloy steel, and 42CrMo alloy steel, selected for their high strength and wear resistance. For precision components, we also use GCr15 high carbon chromium bearing steel, which offers excellent toughness and load-bearing capacity, suitable for high-speed and impact-load working conditions. All raw materials meet strict quality standards to ensure the final product’s reliability.
High carbon chromium bearing steel (fully quenched type) (GCr15): This material has high hardness, high wear resistance, and good toughness, and can withstand large loads and friction. It is suitable for manufacturing bearings and shaft sleeve parts that can withstand heavy loads, high speeds, and impact loads.


The OEM 9R0139 bushing is primarily made of 45# steel, 40Cr alloy steel, and 42CrMo alloy steel, selected for their high strength and wear resistance. For precision components, we also use GCr15 high carbon chromium bearing steel, which offers excellent toughness and load-bearing capacity, suitable for high-speed and impact-load working conditions. All raw materials meet strict quality standards to ensure the final product’s reliability.
High carbon chromium bearing steel (fully quenched type) (GCr15): This material has high hardness, high wear resistance, and good toughness, and can withstand large loads and friction. It is suitable for manufacturing bearings and shaft sleeve parts that can withstand heavy loads, high speeds, and impact loads.


Our production process combines advanced technology and strict quality control:
Raw Material Cutting: Precision cutting of steel materials to match the required size of the bushing.
Heat Treatment: Quenching and tempering processes to enhance material hardness and toughness.
Intermediate Frequency Induction Quenching: Targeted quenching of the bushing’s inner and outer surfaces to improve wear resistance.
Precision Machining: CNC machining to achieve accurate dimensions that comply with OEM specifications.
Surface Treatment: Phosphating or other anti-corrosion treatments to enhance durability in harsh environments.
Quality Inspection: Comprehensive testing of dimensions, hardness, and performance to ensure each product meets quality standards.


Our production process combines advanced technology and strict quality control:
Raw Material Cutting: Precision cutting of steel materials to match the required size of the bushing.
Heat Treatment: Quenching and tempering processes to enhance material hardness and toughness.
Intermediate Frequency Induction Quenching: Targeted quenching of the bushing’s inner and outer surfaces to improve wear resistance.
Precision Machining: CNC machining to achieve accurate dimensions that comply with OEM specifications.
Surface Treatment: Phosphating or other anti-corrosion treatments to enhance durability in harsh environments.
Quality Inspection: Comprehensive testing of dimensions, hardness, and performance to ensure each product meets quality standards.







