Caterpillar 167-8108 204-2576 220-5623 235-4108 219-1964 444-5235 3702244 Backhoe Loader Hydraulic Pump for AL A10VO & AP A10VO Piston Pump

AL A10VO & APA10VO Hydraulic Pump: The Versatile Power Core for Caterpillar Backhoe Loaders

The unique dual-function design of a backhoe loader demands a hydraulic system that is both robust for excavation and efficient for loading. At the heart of this system, the Main Hydraulic Pump must seamlessly deliver power across diverse tasks. The AL A10VO and AP A10VO series axial piston variable pumps are engineered to be this versatile core, providing the intelligent, high-density power required for the demanding cycles of Caterpillar Backhoe Loaders. As a professional manufacturer, www.baolilai-pump.com supplies these critical pump solutions. For full technical documentation, visit www.baolilai-pump.com/contact_us/.

Technical Specifications: AL A10VO / APA10VO Series

Parameter	Value Range
Displacement Range	18 – 140 cm³/rev
Operating Pressure	280 – 350 bar
Maximum Speed	1800 – 3900 rpm

Size		NG		18	28	45	71	88	100	140
Displacement, geometric, per revolution		Vg max	cm3	18	28	45	71	88	100	140
Rotational speed maximum	at Vg max	nnom	rpm	3300	3000	2600	2200	2100	2000	1800
	at Vg<Vg max	nmax	rpm	3900	3600	3100	2600	2500	2400	2100
Flow	at nnom and Vg max	qv max	l/min	59	84	117	156	185	200	292
	at n=1500 rpm and Vg max	qvE max	l/min	27	42	68	107	132	150	210
Power at Δp=280 bar	at nnom, Vg max	Pmax	kW	28	39	55	73	86	93	118
	at n=1500 rpm and Vg max	Pnom	kW	12.6	20	32	50	62	70	98
Torque	at Δp=280 bar	Tmax	Nm	80	125	200	316	392	445	623
	at Δp=100 bar	T	Nm	30	45	72	113	140	159	223
Rotary stiffness of drive shaft	S	c	Nm/rad	11087	22317	37505	71884	71884	121142	169437
	R	c	Nm/rad	14850	26360	41025	76545	76545	–	–
	P	c	Nm/rad	13158	25656	41232	80627	80627	132335	188406
Moment of inertia for rotary group		JTW	kgm2	0.00093	0.0017	0.0033	0.0083	0.0083	0.0167	0.0242
Case volume		V	l	0.4	0.7	1.0	1.6	1.6	2.2	3.0
Weight without through drive (approx.)		m	kg	12.9	18	23.5	35.2	35.2	49.5	65.4
Weight with through drive (approx.)		m	kg	14	19.3	25.1	38	38	55.4	74.4

Engineered for Reliability in Mixed-Use Applications
Operating across construction sites, farms, and utilities exposes equipment to variable and often harsh conditions. The AL A10VO/AP A10VO pump is built for this challenge, backed by a one-year warranty. Its design provides superior resistance to pressure shocks from digging, contamination from diverse job sites, and constant load cycling. The pump’s robust construction, utilizing hardened components and advanced sealing, ensures dependable performance whether trenching in rocky soil or loading loose material. This durability, critical for components like 167-8108, is essential for maximizing the uptime of versatile Caterpillar (caterpillar.com) machines.

Powering the Broad Spectrum of Caterpillar Equipment
The intelligence and adaptability of this pump platform extend its utility far beyond the backhoe loader, serving as a reliable power source across Caterpillar’s vast equipment line.

Backhoe Loaders and Compact Machines: In models like the Cat 420 and 430 backhoe loaders, this pump serves as the main hydraulic source, powering the loader arm, backhoe digging functions, and stabilizers with precision. Its load-sensing capability is key to efficient operation, allowing simultaneous movement without wasted energy. Specific configurations are often referenced under part numbers such as 204-2576 and 220-5623.

Compact Track and Multi-Terrain Loaders (CTL/MTL): These agile machines rely on responsive hydraulics for attachment control and smooth operation. The pump’s variable displacement provides the fine control needed for grading and landscaping tasks.

Skid-Steer Loaders and Telehandlers: For Cat’s range of small loaders and telehandlers, reliable auxiliary and implement hydraulics are paramount. The pump delivers consistent power for lifting and tilting functions, supporting parts like 235-4108 in these applications.

Industrial and Agricultural Applications: From Cat industrial engines driving pumps to large agricultural tractors, durable hydraulic systems are required. The pump’s performance supports these sectors, with its integration evidenced by cross-reference codes such as 219-1964, 444-5235, and 3702244 found in global parts systems.

FAQ (Frequently Asked Questions)

Q1: What makes a variable displacement pump like the AL A10VO ideal for a backhoe loader’s varied tasks?
A1: Its load-sensing capability allows it to automatically adjust oil flow and pressure to match the exact demand of either the backhoe or the loader at any moment. This eliminates the hydraulic power waste and heat generation common in older systems, leading to significant fuel savings, faster cycle times, and the ability to perform multiple functions smoothly.

Q2: How does the pump handle the severe shock loads from backhoe digging and trenching?
A2: The pump is engineered with a robust internal structure, including a pressure-compensated control and a heavy-duty rotating group. These features are designed to absorb and dampen the high-pressure spikes and shock loads generated during digging and breakout, protecting the entire hydraulic system from damage.

Q3: What is the difference between the AL A10VO and AP A10VO designations?
A3: While both are part of the advanced 10VO series, the AP A10VO typically denotes a specific control variant or a pump optimized for certain system integrations (like closed-loop assist circuits). The AL A10VO generally indicates a long-life, severe-duty version with enhanced materials. Both are built for high performance in Caterpillar equipment.

Q4: We need a replacement main pump for our backhoe loader, identified by part number 444-5235. Can you supply it?
A4: Absolutely. We provide high-quality, cross-compatible hydraulic pump solutions for Caterpillar equipment. For precise specifications and compatibility verification for parts like 444-5235 or 3702244, please contact our technical team via www.baolilai-pump.com/contact_us/.

Product Model

Product Model No.	Application equipment brands	Application equipment No.
A A10V O 28ED 72/31L-VSC12N00T AV A10VO28	Caterpillar	3648322
A A10V O 74 DFLR/31R-VSC12N00 -SO588 UG A10VO74	Caterpillar	155-5109
A A10V O 74 DFLR/31R-VSC42N00 -SO757 SV A10VO74	Caterpillar	161-6634 backhoe loader:416C;426C;428C;436C;438C;
AH A10V O110 DFR1/31L-VUC62N00 -SO953 UG A10VO110	Caterpillar	167-8108
AL A10V O 28 DFR1/52L-VCC64N00 -S2531 AV A10VO28	Caterpillar	254-5146-05
AL A10V O 28 DRG /31L-PSC12N00 AV A10VO28	Caterpillar	227-3049 wheel loader 988G
AL A10V O 28ED 73/31R-VCC12N00T -S1574 AV A10VO28	Caterpillar	259-0814 EXCAVATOR:345C;345CL;W345C
AL A10V O 28ED 73/31R-VSC12K68T -S1448 AV A10VO28	Caterpillar	170-9918 EXCAVATOR:385B;385C;385CFS;385CL;385CLMH;390D(FAND RIVE)
AL A10V O 28ED 73/31R-VSC12N00 S2024 AV A10VO28	Caterpillar	259-0815-02 excavator: 330D;330DL;330DLN;330DMH;336D;336DL;336DLN;M330D
AL A10V O 28ED 73/31R-VSC12N00 -S2024 AV A10VO28	Caterpillar	259-0815-01 excavator: 330D;330DL;330DLN;330DMH;336D;336DL;336DLN;M330D
AL A10V O 45 DR /31L-VSC62N00 -S1911 AV A10VO45	Caterpillar	204-2576
AL A10V O 71 DFLR/30L-VSC11N00 -SO313 AL A10VO71	Caterpillar	100-3259
AL A10V O 71 DR /31L-VSC93N00 -S2586 AV A10VO71	Caterpillar	232-1835
AL A10V O 71 DR /31L-VSC93N00 -S3018 AV A10VO71	Caterpillar	232-183501
AL A10V O 74 DFLR/31*UNGUEL*** -S1155 UG A10VO74	Caterpillar	185-5918
AL A10V O 74 DFLR/31R-VSC42N00 -S1155 AV A10VO74	Caterpillar	185-5918 Backhoe Loader 420D;428D;430D;432D;438D;442D;
AL A10V O 74 DFLR/31R-VSC42N00 -S1241 AV A10VO74	Caterpillar	161-6634 backhoe leader:416C;426C;428C;436C;438C
AL A10V O 74 DFLR/31R-VSC42N00 -S1490 SV A10VO74	Caterpillar	220-5623
AL A10V O 74 DFLR/31R-VSC42N00 -S1490 SV A10VO74	Caterpillar	224-6369 Backhoe Loader 420D;430D;432D;442D
AL A10V O 74 DFLR/31R-VSC42N00 -S1491 AV A10VO74	Caterpillar	180-9588 backhoe loader:416D,424D
AL A10V O 74 DFLR/31R-VSC46N00 -S1781 AV A10VO74	Caterpillar	235-4110
AL A10V O 74 DFLR/31R-VSC46N00 -S1782 AV A10VO74	Caterpillar	235-4109 backhoe loader 420D;432D;442D
AL A10V O 74 DFLR/31R-VSC46N00 -S1783 AV A10VO74	Caterpillar	235-4108
AL A10V O 74 DFLR/31R-VSC46N00 -S1783 AV A10VO74	Caterpillar	245-8998 backhoe loader:416D
AL A10V O 74 DFLR/31R-VSC46N00 -S2116 AV A10VO74	Caterpillar	289-6370-00
AL A10V O 74 DFLR/31R-VSC46N00 -S2116 AV A10VO74	Caterpillar	289-6370-03
AL A10V O 74 DFLR/31R-VSC46N00 -S2116 AV A10VO74	Caterpillar	340-6184-00
AL A10V O 74 DFLR/31R-VSC46N00 -S2116 AV A10VO74	Caterpillar	267-2755E/C03
AL A10V O 74 DRG /31R-VSC91N00 -S1565 AV A10VO74	Caterpillar	219-1964
AL A10V O 74ED 74/31R-VSC42N00P ES4059 AV A10VO74	Caterpillar	333-7826-03
AL A10V O 74ED 74/31R-VSC42N00P -S1713 AV A10VO74	Caterpillar	214-1095/214-1097
AL A10V O 74ED 74/31R-VSC42N00P -S1713 AV A10VO74	Caterpillar	333-7826-00
AL A10V O100 DR1 /31R-PSC12K07 -SO275 AV A10VO100	Caterpillar	367-2746 RH340A(replenishing pump)
AL A10V O100 DRG /31L-VSC44K68 -S2818 AV A10VO100	Caterpillar	346-4095-04
AL A10V O100 DRG /31L-VSC44K68 -SO420 AV A10VO100	Caterpillar	224-4432-03
AL A10V O100 DRG /31L-VSC44K68 -SO420 AV A10VO100	Caterpillar	224-4432-02
AL A10V O100 DRG /31R-PSC12K07 SV A10VO100	Caterpillar	367-2746 RH340A(replenishing pump)
AL A10V O100 DRG /31R-VSC43N00 -SO420 AV A10VO100	Caterpillar	224-4431
AL A10V O100ED 72/31L-VSC12K01H -SO679 AL A10VO100	Caterpillar	370-2216
AL A10V O100ED 72/31L-VSC12K01T -SO679 AV A10VO100	Caterpillar	1521224
AL A10V O100ED 72/31R-PSC12K07H AL A10VO100	Caterpillar	367-8871 RH340B fan pump
AL A10V O100ED 72/31R-VSC12K07T AV A10VO100	Caterpillar	367-8871 RH340B fan pump
AL A10VSO 18 DR /31L-VSC12N00 -SO944 AV A10VSO18	Caterpillar	187-9090
AL A10VSO 18 DR /31L-VSC62N00 -SO 94 AV A10VSO18	Caterpillar	202-1335 02
AL A10VSO 18 DR /31R-VSC12N00 -S1016 AV A10VSO18	Caterpillar	177-0280-04
AL A10VSO 18 DR /31R-VSC12N00 -SO944 AV A10VSO18	Caterpillar	172-9322
AP A10V O 71 DFR1/31L-VSC42K07 -S3963 AV A10VO71	Caterpillar	418-2202 03
AP A10V O 71 DFR1/31R-VSC41N00 -S4542 AV A10VO71	Caterpillar	240-2647-05
AP A10V O 71 DFR1/31R-VSC41N00 -SO420 AV A10VO71	Caterpillar	240-2647-02
AP A10V O 71 DR/31L-VSC61N00′ *UNGUEL*** UG A10VO71	Caterpillar	232-1835-00
AP A10V O 74 DFR1/31R-VSC42K68 -S2242 AV A10VO74	Caterpillar	252-2679-05
AP A10V O100 DFR1/31R-VSC12N00 -S2286 AV A10VO100	Caterpillar	300-9482-02
AP A10V O100 DFR1/31R-VSC43N00 -S2244 AV A10VO100	Caterpillar	271-2116-02 Raupenbagger>10-60(inkl.)t
AP A10V O100 DFR1/31R-VSC44K68 -S2773 AV A10VO100	Caterpillar	325-9786
AP A10V O100 DFR1/31R-VSD12K24 -S2285 AV A10VO100	Caterpillar	300-9481-02
AP A10V O100ED 72/31L-VUD12K15P AL A10VO100	Caterpillar	3704580(intermediate)
AP A10V O100ED 72/31L-VUD12K15T AV A10VO100	Caterpillar	3704580(1521222)
AP A10V O100ED 72/31L-VUD12K15T -SO 52 AV A10VO100	Caterpillar	3702245
AP A10V O100ED 74/31L-VUC62N00P -S2924 AV A10VO100	Caterpillar	340-2121-00
AP A10V O100ED 74/31L-VUC62N00P-S4026 AV A10VO100	Caterpillar	340-212104 D11T
AP A10V O100ED 74/31R-VSC12K68P -S4483 AV A10VO100	Caterpillar	460-490400 24M
AP A10V O100ED 74/31R-VSC62K00P -S1742 AV A10VO100	Caterpillar	220-078000 TRACK TYPETRACTOR: D10T(FAN DRIVE)
AP A10V O100ED 74/31R-VSC62K00P-S4060 AV A10VO100	Caterpillar	220-078009 D10
AP A10V O110 DFR1/31R-VSC12K68 -S2243 AV A10VO110	Caterpillar	252-2680-06
AP A10V O110 DFR1/31R-VSC44K00 -S3990 AV A10VO110	Caterpillar	373-663003 D10T
AP A10V O110 DFR1/31R-VSC44K07 -S3991 AV A10VO110	Caterpillar	373-662903 D10T
AP A10V O110 DRG /31L-VUC42N00 -S1985 AV A10VO110	Caterpillar	216-5630
AP A10V O110 DRG /31L-VUC92N00 -S1160 SV A10VO110	Caterpillar	167-8108
AP A10V O140 DFR1/31L-VWD12N00 -S3530 AV A10VO140	Caterpillar	379-9740 Loader 992K
AP A10V O140 DFR1/31R-VSC12N00 -SO930 AV A10VO140	Caterpillar	153-9624 EARTHMOVINGCOMPACTOR 836G;836H; WHEEL-TYPELOADER 988G;988H;WHEELDOZER 834G;834H;
AP A10V O140 DFR1/31R-VSD12K00 -S1541 AV A10VO140	Caterpillar	214-1091 Dozer D8T
AP A10V O140 DFR1/31R-VSD12K00 -S4106 AV A10VO140	Caterpillar	444-5235
AP A10V O140 DFR1/31R-VSD44K07 -S1559 AV A10VO140	Caterpillar	214-1098
AP A10V O140 DRG /31L-PSD12K01 -SO679 AV A10VO140	Caterpillar	2765944
AP A10V O140ED 72/31L-VSD12K01T -SO679 AV A10VO140	Caterpillar	364-8384
LA10VO71ED72/31R+LA10VO71DRG/31R AV A10VO71+A10VO	Caterpillar	368-6566 DNEW: 437-0163-00
LA10VO71ED72/31R+LA10VO71ED72/31R AL A10VO71+A10VO	Caterpillar	369-3462
LA10VO71ED72/31R+LA10VO71ED72/31R AV A10VO71+A10VO	Caterpillar	3702244
PA10VO100DFR1/31R+PA10VO100DFR1/31R AV A10VO100+A10V O	Caterpillar	286-7884-02
PA10VO100DFR1/31R+PA10VO100DFR1/31R UG A10VO100+A10V O	Caterpillar	286-7884E/C00
PA10VO100ED74/31R+LA10VO28DR/52+AZPF-011 AV A10VO100+A10V O	Caterpillar	466-5028-00 24M

Specification