PUMP GP-PISTON 1003259 - Caterpillar



1003259 PUMP GP-PISTON Caterpillar parts 416B, 426B, 428B, 436B, 438B
Rating:
63
Alternative (cross code) number:
CA1003259
100-3259
1003259
Caterpillar 1003259 PUMP GP-PISTON
Weight: 60 pounds 27 kg.

Buy PUMP GP-PISTON 1003259 Caterpillar genuine, new aftermarket tractor parts with delivery
BACKHOE LOADER,

Related part:
1003259  PUMP GP-HYD  0R9645  R

You can buy:

 
$1 750

27 Jan 2017
MOVO Hydraulics

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$2,172.99

16 Dec 2025
74.6[33.57] pounds
US: RAParts Inc.
Stevens Lake Parts One New Piston Pump Fits CAT, Fits Caterpillar 3054, 416B, 426B, 428B, 436B, 438B Models Interchangeable with 100-3259, 100-3259-A, 1003259, 1003259-A, HYI60-0103
Stevens Lake Parts One New Aftermarket Replacement Piston Pump Group || This Is An Aftermarket Replacement Part Made To Meet Or Exceed OEM Specifications.
$2,172.99

16 Dec 2025
74.6[33.57] pounds
US: RAParts Inc.
RAParts 1003259 Piston Pump Group Fits Caterpillar Loader 416B 426B 428B 436B 438B
Reliable Aftermarket Parts One New Aftermarket Replacement Piston Pump Group Fits Caterpillar Models:416B, 426B, 428B, 436B, 43 || OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. || Please Note: Some Listings Use Stock Images for Reference and May Differ from the Actual Product. || This Aftermarket Part Is Made to Meet or Exceed Manufacturer (OEM) Specifications. || All OEM part numbers and logos are to be used for identification purposes only.
$1,245.00

15 Dec 2025

CN: QX construction
100-3259 0R-9645 1003259 Hydraulic Piston Pump Compatible with CAT Engine 3054 Backhoe Loader 416B 426B 428B 436B 438B
DJCXYSM Product Name: Hydraulic Pump || Part number:100-3259 0R-9645 1003259 0R9645 || Application:Compatible with CAT Engine 3054 Backhoe Loader 416B 426B 428B 436B 438B || NOTE: To avoid unnecessary returns, please check the part number before purchasing, or tell us the picture of your engine model and nameplate to reduce the error rate. thank you. || Tip: If you have any questions before or after sale, please contact us in time. We'll help you out as soon as possible. Thank you!
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Compatible equipment models: 1003259:

BACKHOE LOADER  416B   426B   428B   436B   438B   Caterpillar

Caterpillar parts catalog:

Caterpillar parts catalog
428B BACKHOE LOADER 7EJ00001-05999 (MACHINE) POWERED BY 3054 DIESEL ENGINE
416B Backhoe Loader 8ZK00001-05999 (MACHINE) POWERED BY 3054 Engine
438B BACKHOE LOADER 3KK03000-UP (MACHINE) POWERED BY 3054 DIESEL ENGINE
416B Backhoe Loader 8ZK06000-11031 (MACHINE) POWERED BY 3054 Engine
426B BACKHOE LOADER 5YJ02300-UP (MACHINE) POWERED BY 3054 DIESEL ENGINE
436B BACKHOE LOADER 6MJ00800-UP (MACHINE)
428B Backhoe Loader 7EJ06000-09446 (MACHINE) POWERED BY 3054 Engine
416B Backhoe Loader 8SG00001-11999 (MACHINE) POWERED BY 3054 Engine
416B Backhoe Loader 8SG12000-14798 (MACHINE) POWERED BY 3054 Engine


Information:

3200 Family Of EnginesReference: Service Magazine; May 15, 1989; Page 7; "New Head Gasket Used". Two cylinder head gaskets are used in production and parts service of the 3200 Family of Engines. The 7C-1599 Cylinder Head Gasket is used in all new production 3208 engines. This gasket has a green bead around the sealing surfaces, and the fire ring inside diameter is 117.12 0.37 mm (4.611 .015 in).The 7W-2059 Cylinder Head Gasket is used in all new production 3204 engines as well as 3208 remanufactured engines. This gasket has an orange bead around the sealing surfaces, and the fire ring inside diameter is 119.50 0.37 mm (4.705 .015 in).
PLEASE NOTE THE COLOR AND DIMENSIONAL DIFFERENCES IN THESE TWO GASKETS.
For parts service, the 7W-2059 Cylinder Head Gasket may be used in all 3204 or 3208 engines. The 7C-1599 Cylinder Head Gasket may only be used in 3208 engines with standard cylinder bores that have never been repaired with a cylinder sleeve. As shown above, the 7C-1599 Cylinder Head Gasket has a smaller inside diameter. Use of this gasket in engines that have had cylinder sleeves installed may lead to gasket failure due to the fire ring overlapping the flange of the cylinder sleeve.
The following charts identify the gasket kits that include the 7C-1599 Cylinder Head Gasket or the 7W-2059 Cylinder Head Gasket.

Parts pump Caterpillar catalog:

6I0911 PUMP GP-ENGINE OIL
3054, 312, 315, 317, 416B, 426B, 428B, 436B, 438B, 914G, AP-800C, BG-225B, CB-534B, CB-534C, CB-535B, CP-433C, CS-431C, IT14G, PS-300B
6I0570 PUMP GP-FUEL TRANSFER
3054, 307, 416B, 426B, 428B, 436B, 438B, CB-534B, CB-534C, CB-535B, CP-433C, CS-431C, PS-300B, TH103, TH62, TH63, TH82, TH83
6I0441 PUMP GP-WATER
3054, 307, 312, 315, 317, 416B, 426B, 428B, 436B, 438B, AP-800C, BG-225B, CB-434B, CB-434C, CB-534B, CB-534C, CB-535B, CB-544, CB-545, CP-433C, CS-431C, TH103, TH62, TH63, TH82, TH83
6I0252 PUMP GP-ENGINE OIL
3054, 307, 416B, 428B, CB-434B, CB-434C, CB-544, CB-545, CP-433C, CS-323C, CS-431C, TH62, TH63, TH82
6Y3864 PUMP GP-HYDRAULIC
416, 416B, 426, 426B, 428, 428B, 436, 436B, 438, 438B, RT50
6Y4341 PUMP GP-CRESCENT
416, 426, 426B, 428, 428B, 436, 436B, 438, 438B, RT50
1186796 PUMP GP-METERING
416B, 426B, 428B, 436B, 438B
1514825 PUMP GP-WATER
3054, 307, 312, 315, 317, 416B, 416C, 426C, 428B, 428C, 436C, 438C, 914G, AP-800C, BG-225B, CB-434B, CB-544, CB-545, IT14G, TH62, TH63, TH82, TH83
9W5426 PUMP GP-CRESCENT (SHW CRESENT)
416, 426, 426B, 428, 436B, 438B, RT50
6I0253 PUMP AS-ENGINE OIL
3054, 3054B, 307, 416B, 416C, 416D, 424D, 428B, 428C, CB-434B, CB-434C, CB-544, CB-545, CP-433C, CS-323C, CS-431C, PS-150B, TH210, TH215, TH62, TH63, TH82
6I0912 PUMP AS-ENGINE OIL
3054, 3054B, 312, 312B L, 312C, 315, 315B L, 317, 416B, 416C, 416D, 420D, 426C, 428B, 428C, 428D, 430D, 432D, 436C, 438C, 438D, 442D, 554, 908, 914G, AP-800C, BG-225B, BG-225C, CB-434C, CB-534B, CB-53...
1213220 PUMP GP-FUEL TRANSFER
3054, 3054B, 307, 312, 312C, 315, 315B L, 317, 416B, 416C, 426C, 428B, 428C, 436C, 438C, 914G, AP-800C, BG-225B, CB-434B, CB-434C, CB-534B, CB-534C, CB-544, CB-545, CP-433C, CS-323C, CS-431C, IT14G, M...
3621096 PUMP GP-FUEL PRM & WATER SEP
953D, 963D, D6K LGP, D6K XL, D6N, PL61
3522154 PUMP GP-WATER
3126, 322C, 322C FM, 938G, 950G, 962G, IT38G, IT62G
2003269 PUMP GP-MAIN HYDRAULIC
385B, 385C, 385C FS, 385C L, 385C L MH, 5090B