3263870 CORE AS-RADIATOR Caterpillar parts
320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, ...
Rating:
Alternative (cross code) number:
CA3263870
326-3870
3263870
CA3263870
326-3870
3263870
Weight: 37 pounds 16 kg.
EXCAVATOR, MOBILE HYD POWER UNIT,
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US$790.55
14 Jul 2025
FridayParts
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YUFUQIDA #326-3870 Excavator Radiators - Pro All Aluminum Tractor Radiator Assembly Compatible with Caterpillar Cat 320D E320D E323D 323D L 324D 325D 320D 329D 320DFMLLB 3263870 Excavator Radiators
YUFUQIDA ★ VEHICLE FITMENT - Compatible with Caterpillar CAT 325DFMLLA 324DFMLL 320DFMLLB 325DFMLL 320DFMLL 320DFMST 324DFMGF 320DFMGFB 325DFMGF 324DFMLGP 320DFMRR 320DFMHW 329DL 320DL 325DL 323DL 324D 320D 323DLOEM 320DGC 320DLRR 329DLOEM 320DRR 325DLOEM 325DMH 329D 329DLN 324DL 324DLN 323DSA 325D 323D 320DLN 323DLN 324DLNOEM 323DLNOEM Radiator;OEM Part Numbers: 326-3870, 3263870 Excavators Radiators || ★ AA5052 ALL ALUMINUM RADIATOR - The Radiator is made of full aircraft AA5052 grade aluminum construction, all item is 100% inspected and professional tested for quality assurance || ★ EFFICIENT COOLING - High performance racing design, improves cooling by 35 -45% Temp, build-in transmission cooler || ★ ADVANCED TECHNIGUE - Leading-edge welding craftsmanship, CE approval. Innovative engineering, manufacturing technology and quality control ensure that radiators exceed the performance of the original equipment they replace || ★ CONVENIENT INSTALLATION - Light weight direct bolt-on OEM fitment or replacement, stronger & higher capacity for coolant than stock one || ★ 12 MONTHS WARRANTY - radiator offers one-year product warranty and 60-day free return policy. Please check the vehicle compatibility and item size
YUFUQIDA ★ VEHICLE FITMENT - Compatible with Caterpillar CAT 325DFMLLA 324DFMLL 320DFMLLB 325DFMLL 320DFMLL 320DFMST 324DFMGF 320DFMGFB 325DFMGF 324DFMLGP 320DFMRR 320DFMHW 329DL 320DL 325DL 323DL 324D 320D 323DLOEM 320DGC 320DLRR 329DLOEM 320DRR 325DLOEM 325DMH 329D 329DLN 324DL 324DLN 323DSA 325D 323D 320DLN 323DLN 324DLNOEM 323DLNOEM Radiator;OEM Part Numbers: 326-3870, 3263870 Excavators Radiators || ★ AA5052 ALL ALUMINUM RADIATOR - The Radiator is made of full aircraft AA5052 grade aluminum construction, all item is 100% inspected and professional tested for quality assurance || ★ EFFICIENT COOLING - High performance racing design, improves cooling by 35 -45% Temp, build-in transmission cooler || ★ ADVANCED TECHNIGUE - Leading-edge welding craftsmanship, CE approval. Innovative engineering, manufacturing technology and quality control ensure that radiators exceed the performance of the original equipment they replace || ★ CONVENIENT INSTALLATION - Light weight direct bolt-on OEM fitment or replacement, stronger & higher capacity for coolant than stock one || ★ 12 MONTHS WARRANTY - radiator offers one-year product warranty and 60-day free return policy. Please check the vehicle compatibility and item size
KUUHLERSAT Full Aluminum Radiator Compatible With Caterpillar CAT Excavator E320D E323D 320D 323D L 324D 325D 320D 329 Models 6 Row Replaces OEM Part Numbers 326-3870 3263870 Only
KUUHLERSAT Water Tank Radiator 326-3870 fit Caterpillar CAT E320D 320D E323D,323D L 324D 325D 320d 329;Model:320 320 323 324 325 various || 100% Leak Tested, High Quality, Direct Fit Replacement for OEM # 326-3870 || All-aluminum design with durable TIG-welded construction (AA5052 aircraft aluminum) || Easy To Install: Light weight direct bolt-on replacement, stronger & higher capacity for coolant || Direct Replacement, No Modifications Required for Maximum Cooling Efficiency for your Vehicle
KUUHLERSAT Water Tank Radiator 326-3870 fit Caterpillar CAT E320D 320D E323D,323D L 324D 325D 320d 329;Model:320 320 323 324 325 various || 100% Leak Tested, High Quality, Direct Fit Replacement for OEM # 326-3870 || All-aluminum design with durable TIG-welded construction (AA5052 aircraft aluminum) || Easy To Install: Light weight direct bolt-on replacement, stronger & higher capacity for coolant || Direct Replacement, No Modifications Required for Maximum Cooling Efficiency for your Vehicle
3263870 Radiator Compatible with Caterpillar CAT 320D E320D E323D 323D L 324D 325D 320D 329D, 6 Row Full Aluminium Caterpillar Forestry Log Loaders Excavators Radiator, Excavators Radiator
Korelox Core Size: 37-1/4'' x 15-1/2'' x 4'' Thickness, Overall Size: 22.8''x 22.3'' x 5.3'' T || Upper Inlet: 2 inch located on the driver side, Lower Outlet: 2 inch located on passenger side || OEM Part Numbers: 326-3870 || Direct OE replacement with drop-in precise fitment and easy installation || Super capacity than your stock cooling, great performance upgrade
Korelox Core Size: 37-1/4'' x 15-1/2'' x 4'' Thickness, Overall Size: 22.8''x 22.3'' x 5.3'' T || Upper Inlet: 2 inch located on the driver side, Lower Outlet: 2 inch located on passenger side || OEM Part Numbers: 326-3870 || Direct OE replacement with drop-in precise fitment and easy installation || Super capacity than your stock cooling, great performance upgrade
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2025-02-05
2023-02-21
3263870
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Compatible equipment models: 3263870:
Information:
Caterpillar electronic service tools are designed to help the service technician perform the following tasks:
Information access
System diagnostics
System calibrations
System configurations
Data link communicationsRequired Service Tools
Table 1
Required Service Tools
Part Number Description
N/A 4 mm Allen Wrench
6V-2197 Transducer
7X-1171 Transducer Adapter
5P-7277 Voltage Tester
1U-5804 Crimp Tool (12−AWG TO 18−AWG)
151-6320 Wire Removal Tool
266-1683 Removal Tool
147-6456 Removal Tool
7X-1710 Multimeter Probe
6V-7070 Digital Multimeter (HEAVY-DUTY)
or
9U-7330 Digital Multimeter
or
146-4080 Digital Multimeter Gp (RS232)
or
212-2160 Digital Multimeter Gp Two short jumper wires are needed to check the continuity of some wiring harness circuits by shorting two adjacent terminals together in a connector. A long extension wire may also be needed to check the continuity of some wiring harness circuits.Optional Service Tools
Table 2 lists the optional service tools that can be used when the engine is serviced.
Table 2
Part Number Description
198-4240
or
1U-5470 Digital Pressure Indicator
Engine Pressure Group
4C-4911(1) Battery Load Tester
6V-9130(2) Temperature Adapter (MULTIMETER)
215-9512(3) Hose Connector (Quick Disconnect, Male)
215-9513(3) Hose Connector (Quick Disconnect, Female)
4C-4075 Crimp Tool (4−AWG TO 10−AWG)
155-5176 AC/DC Current Probe
2P-8278 Tube As
217-0113 Wiring Harness
277-4734 Harness
(1) Refer to Special Instruction, SEHS9249, "Use of 4C-4911 Battery Load Tester for 6 VDC, 8 VDC, and 12 VDC Lead Acid Batteries" and Special Instruction, SEHS7633, "Battery Test Procedure".
(2) Refer to Special Instructions, SEHS8382, "Use of the 6V-9130 Temperature Adapter Group".
(3) This item is used with a 2P-8278 Tube Assembly.Caterpillar Electronic Technician (ET)
Cat ET can display the following information:
Status of all pressure sensors and temperature sensors
Programmable parameter settings
Active diagnostic codes and logged diagnostic codes
Logged events
HistogramsCat ET can also be used to perform the following functions:
Diagnostic tests
Calibrations
Programming of flash file
Parameter programming
Copy configuration function for Electronic Control Module (ECM) replacement
Data logging
Graphs (real time)Table 3 lists the service tools that are required to use Cat ET.
Table 3
Service Tools for the Use of Cat ET
Part Number Description
N/A Required
PC with a 2.0 GHz Pentium processor or greater
1 GB of RAM
500 MB of available hard drive space
CD ROM drive
Super VGA monitor or display (1024 x 768)
Microsoft® Windows XP SP3, Vista Business SP2, or Windows 7 Professional
RS232 port with a 16550 UART for use with Comm Adaptor II
USB 1.1 or 2.0 port for use with Comm Adaptor 3
Ethernet R45 connector
Built in pointing device or mouse
Microsoft® Internet Explorer 7.0
N/A Recommended
PC with a 2.0 GHz dual core processor
3 GB of RAM
3 GB of available hard drive space
DVD ROM drive
15.4 inch XGA screen (1280 x 1024)
Microsoft® Windows XP SP3 or later, Vista Business SP2 or Windows 7 Professional
RS232 port with a 16550 UART for use with Comm Adaptor II
USB 1.1 or 2.0 port for use with Comm Adaptor 3
Ethernet R45 connector
Built in pointing device or mouse
Latest version of Microsoft® Internet Explorer
JERD2124 Single Use Program License
JERD2128 Data Subscription (Truck and Commercial Engine)
JERD2129 Data Subscription for All Engines and Machines
171-4400(1) Communication Adapter ("CAT ET" TO ECM INTERFACE)
237-7547(2) Adapter Cable As
(1) The 7X-1700 Communication Adapter Gp may also be used.
(2) The 237-7547 Adapter Cable As is required to connect to the USB port on computers that are not equipped with an RS232
Information access
System diagnostics
System calibrations
System configurations
Data link communicationsRequired Service Tools
Table 1
Required Service Tools
Part Number Description
N/A 4 mm Allen Wrench
6V-2197 Transducer
7X-1171 Transducer Adapter
5P-7277 Voltage Tester
1U-5804 Crimp Tool (12−AWG TO 18−AWG)
151-6320 Wire Removal Tool
266-1683 Removal Tool
147-6456 Removal Tool
7X-1710 Multimeter Probe
6V-7070 Digital Multimeter (HEAVY-DUTY)
or
9U-7330 Digital Multimeter
or
146-4080 Digital Multimeter Gp (RS232)
or
212-2160 Digital Multimeter Gp Two short jumper wires are needed to check the continuity of some wiring harness circuits by shorting two adjacent terminals together in a connector. A long extension wire may also be needed to check the continuity of some wiring harness circuits.Optional Service Tools
Table 2 lists the optional service tools that can be used when the engine is serviced.
Table 2
Part Number Description
198-4240
or
1U-5470 Digital Pressure Indicator
Engine Pressure Group
4C-4911(1) Battery Load Tester
6V-9130(2) Temperature Adapter (MULTIMETER)
215-9512(3) Hose Connector (Quick Disconnect, Male)
215-9513(3) Hose Connector (Quick Disconnect, Female)
4C-4075 Crimp Tool (4−AWG TO 10−AWG)
155-5176 AC/DC Current Probe
2P-8278 Tube As
217-0113 Wiring Harness
277-4734 Harness
(1) Refer to Special Instruction, SEHS9249, "Use of 4C-4911 Battery Load Tester for 6 VDC, 8 VDC, and 12 VDC Lead Acid Batteries" and Special Instruction, SEHS7633, "Battery Test Procedure".
(2) Refer to Special Instructions, SEHS8382, "Use of the 6V-9130 Temperature Adapter Group".
(3) This item is used with a 2P-8278 Tube Assembly.Caterpillar Electronic Technician (ET)
Cat ET can display the following information:
Status of all pressure sensors and temperature sensors
Programmable parameter settings
Active diagnostic codes and logged diagnostic codes
Logged events
HistogramsCat ET can also be used to perform the following functions:
Diagnostic tests
Calibrations
Programming of flash file
Parameter programming
Copy configuration function for Electronic Control Module (ECM) replacement
Data logging
Graphs (real time)Table 3 lists the service tools that are required to use Cat ET.
Table 3
Service Tools for the Use of Cat ET
Part Number Description
N/A Required
PC with a 2.0 GHz Pentium processor or greater
1 GB of RAM
500 MB of available hard drive space
CD ROM drive
Super VGA monitor or display (1024 x 768)
Microsoft® Windows XP SP3, Vista Business SP2, or Windows 7 Professional
RS232 port with a 16550 UART for use with Comm Adaptor II
USB 1.1 or 2.0 port for use with Comm Adaptor 3
Ethernet R45 connector
Built in pointing device or mouse
Microsoft® Internet Explorer 7.0
N/A Recommended
PC with a 2.0 GHz dual core processor
3 GB of RAM
3 GB of available hard drive space
DVD ROM drive
15.4 inch XGA screen (1280 x 1024)
Microsoft® Windows XP SP3 or later, Vista Business SP2 or Windows 7 Professional
RS232 port with a 16550 UART for use with Comm Adaptor II
USB 1.1 or 2.0 port for use with Comm Adaptor 3
Ethernet R45 connector
Built in pointing device or mouse
Latest version of Microsoft® Internet Explorer
JERD2124 Single Use Program License
JERD2128 Data Subscription (Truck and Commercial Engine)
JERD2129 Data Subscription for All Engines and Machines
171-4400(1) Communication Adapter ("CAT ET" TO ECM INTERFACE)
237-7547(2) Adapter Cable As
(1) The 7X-1700 Communication Adapter Gp may also be used.
(2) The 237-7547 Adapter Cable As is required to connect to the USB port on computers that are not equipped with an RS232
Cat SIS web machinery list:
Parts core Caterpillar catalog:
2674743
CORE AS-ENGINE OIL COOLER
120H, 120H ES, 120H NA, 120K, 120K 2, 12K, 12M, 135H, 135H NA, 140G, 140K, 140K 2, 140M, 160K, 30/30, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, ...
120H, 120H ES, 120H NA, 120K, 120K 2, 12K, 12M, 135H, 135H NA, 140G, 140K, 140K 2, 140M, 160K, 30/30, 3116, 3126, 3126B, 3126E, 320 L, 320B, 322B L, 322B LN, 322C, 322C FM, 324D, 324D FM, 324D FM LL, ...
1252970
CORE AS-OIL COOLER
318C, 319C, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
318C, 319C, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
2459207
CORE AS-RADIATOR
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, M325D L MH, M325D MH
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, M325D L MH, M325D MH
2459208
CORE AS-OIL COOLER
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, 329D LN, M325D L MH, M325D MH
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, 329D LN, M325D L MH, M325D MH
2653624
CORE AS-RADIATOR
320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 323D L, 323D LN
320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D LRR, 320D RR, 323D L, 323D LN
2653625
CORE AS-OIL COOLER
320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 321C, 321D LCR, 323D L, 323D LN, 323D SA
3535549
CORE AS-RADIATOR
324D, 324D FM, 324D L, 325D, 325D FM, 325D L, 326D L, 329D, 329D L
324D, 324D FM, 324D L, 325D, 325D FM, 325D L, 326D L, 329D, 329D L
3535551
CORE AS-OIL COOLER
324D, 324D FM, 324D L, 325D, 325D FM, 325D L, 326D L, 329D, 329D L
324D, 324D FM, 324D L, 325D, 325D FM, 325D L, 326D L, 329D, 329D L
3128338
CORE AS-OIL COOLER
320D, 320D FM, 320D GC, 320D L, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 321D LCR, 323D L, 323D LN, 323D SA, 323D2 L
320D, 320D FM, 320D GC, 320D L, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 321D LCR, 323D L, 323D LN, 323D SA, 323D2 L
4331670
CORE AS-RADIATOR
320D, 320D FM
320D, 320D FM
3609273
CORE AS-RADIATOR
320D, 320D FM, 320D GC, 320D L, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA
320D, 320D FM, 320D GC, 320D L, 320D LRR, 320D RR, 323D L, 323D LN, 323D SA
3128340
CORE AS-RADIATOR
320D, 320D L, 323D L, 323D LN, 323D SA
320D, 320D L, 323D L, 323D LN, 323D SA
2459208
CORE AS-OIL COOLER
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, 329D LN, M325D L MH, M325D MH
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, 329D LN, M325D L MH, M325D MH
2459207
CORE AS-RADIATOR
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, M325D L MH, M325D MH
324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 329D, 329D L, M325D L MH, M325D MH
2054962
CORE AS
322C, 322C FM, 325C, 325C FM, M325C MH
322C, 322C FM, 325C, 325C FM, M325C MH
2451846
CORE AS-AFTERCOOLER
322C, 322C FM, 325C, 325C FM
322C, 322C FM, 325C, 325C FM
2054964
CORE AS-AFTERCOOLER
322C, 322C FM, 325C, 325C FM
322C, 322C FM, 325C, 325C FM
2419553
CORE AS-RADIATOR
322C, 322C FM, 325C, 325C FM
322C, 322C FM, 325C, 325C FM
1415974
CORE AS-OIL COOLER
322B LN, 325B L
322B LN, 325B L
1756405
CORE AS-RADIATOR
322B L, 325B L
322B L, 325B L
1406538
CORE AS-OIL COOLER
322B L, 325B L
322B L, 325B L
1241607
CORE AS-OIL COOLER
322B L, 325B, 325B L
322B L, 325B, 325B L
1099516
CORE AS-RADIATOR
322B L, 325B, 325B L
322B L, 325B, 325B L
7N3111
CORE AS-RADIATOR
528, 528B, 530B
528, 528B, 530B