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PUMP GP-GEAR 3866646 - Caterpillar


3866646 PUMP GP-GEAR Caterpillar parts 306
Rating:
64
Alternative (cross code) number:
CA3866646
386-6646
3866646
Caterpillar 3866646 PUMP GP-GEAR
Weight: 22 pounds 9 kg.

Buy PUMP GP-GEAR 3866646 Caterpillar genuine, new aftermarket tractor parts with delivery
MINI HYD EXCAVATOR,

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$650.00

18 Oct 2025

CN: Nancy-Parts sto
Gear Pump 386-6646 3866646 XYohykai Fits for CAT 306
XYohykai ◆Part Name◆:Gear Pump || ◆Part Number◆:386-6646 3866646 || ◆Application◆: XYohykai Fits for CAT 306 || ◆Notice◆-Application information provided is for reference only. Please confirm the part number and compare old parts before purchase. If you have any question pls feel free to ask us. || ◆Worth Choice◆-This product has stable performance high reliability easy installation and fast response.
$650.00

18 Oct 2025

CN: QX construction
Gear Pump 386-6646 3866646 Compatible with CAT 306
DJCXYSM Product Name:Gear Pump || Part Number:386-6646 3866646 || Application: Compatible with CAT 306 || NOTE: To avoid unnecessary returns DJCXYSM please check the part number before purchasing or tell us the picture of your engine model and nameplate to reduce the error rate. || Tip: Please purchase according to the part number, as there may be discrepancies between the pictures and the actual product.
$650.00

18 Oct 2025

CN: Fikowjs-Machine
Gear Pump 386-6646 3866646 Fikowjs Compatible for CAT 306
Fikowjs TIP: Please purchase according to the old part number, appearance is not able to judge the accuracy of the product. || Product Name:Gear Pump || Product Number:386-6646 3866646 || Application: Compatible for CAT 306 || NOTE: There are many kinds of products in Fikowjs parts, if you can't find the part number you need, please consult us, we will reply soon!
Number on catalog scheme: 5
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Compatible equipment models: 3866646:

MINI HYD EXCAVATOR  306   Caterpillar

Information:


Illustration 1 g00902963
(1) Refer to this Power Train Specifications, "Solenoid Valve (Torque Converter Lockup Clutch)". (2) Torque for nut ... 50 5 N m (37 4 lb ft) (3) Torque for two plugs ... 70 7 N m (50 5 lb ft) (4) Torque for seven plugs ... 5.5 1.5 N m (50 13 lb in)
Illustration 2 g00902966
Section A-A (5) Torque for plug ... 30 3 N m (22 2 lb ft) (6) Torque for four bolts ... 30 7 N m (22 5 lb ft) (7) 8E-6144 Spring Length under test force ... 79.0 mm (3.11 inch) Test force ... 141 9 N (32 2 lb) Free length after test ... 95.8 mm (3.77 inch) Outside diameter ... 14.8 mm (0.58 inch) Color code ... white stripe and red stripe (8) 6Y-7267 Spring Length under test force ... 65 mm (2.6 inch) Test force ... 55.28 2.76 N (12.428 0.621 lb) Free length after test ... 96.13 mm (3.785 inch) Outside diameter ... 8.12 mm (0.320 inch) Color code ... red stripe (9) Shim Pack Thickness of one 8J-4452 Shim ... 0.12 mm (0.005 inch) One 8J-4452 Shim will change the pressure approximately. ... 12 kPa (1.8 psi) Thickness of one 2S-0675 Spacer ... 0.4 mm (0.02 inch) One 2S-0675 Spacer will change the pressure approximately. ... 39 kPa (5.7 psi) Thickness of one 9J-1330 Shim ... 0.79 mm (0.031 inch) One 9J-1330 Shim will change the pressure approximately. ... 76 kPa (11 psi) (10) Torque for bolt ... 30 4 N m (22 3 lb ft) (11) 9P-0683 Spring Length under test force ... 25.4 mm (1.0 inch) Test force ... 35.6 2.8 N (8.00 0.63 lb) Free length after test ... 66.04 mm (2.600 inch) Outside diameter ... 21.4 mm (0.84 inch) (12) 4M-2381 Spring Quantity ... 2 Length under test force ... 12.2 mm (0.48 inch) Test force ... 2.30 0.18 N (0.517 0.041 lb) Free length after test ... 22.6 mm (0.89 inch) Outside diameter ... 7.62 mm (0.300 inch) (13) 9D-7884 Spring Length under test force ... 18.62 mm (0.733 inch) Test force ... 161.5 N (36.31 lb) Free length after test ... 23.88 mm (0.940 inch) Outside diameter ... 15.79 mm (0.622 inch) Color code ... white stripe (14) 8P-9739 Orifice Orifice thickness ... 6.60 mm (0.260 inch)
Illustration 3 g00902922
(15) Torque for plug ... 25 5 N m (18 4 lb ft)
Illustration 4 g00902968
Section B-B (16) Shim Pack Thickness of one 5J-2721 Shim ... 0.13 mm (0.005 inch) One 5J-2721 Shim will change the pressure approximately. ... 10 kPa (1.5 psi) Thickness of one 6J-3993 Shim ... 0.25 mm (0.010 inch) One 6J-3993 Shim will change the pressure approximately. ... 19 kPa (2.8 psi) Thickness of one 5J-1036 Shim ... 0.80 mm (0.032 inch) One 5J-1036 Shim will change the pressure approximately. ... 60 kPa (8.7 psi)

Caterpillar parts catalog:

Caterpillar parts catalog
306 Mini Hydraulic Excavator MXH00001-UP (MACHINE) POWERED BY 4M40 Engine
306 Excavator SMD00001-UP (MACHINE) POWERED BY 4M40 Engine


Parts pump Caterpillar catalog:

2128639 PUMP GP-ENGINE OIL
305.5, 306, 307C, 307D, 308C, 308D
1905729 PUMP GP-WATER
305.5, 306, 307C, 307D, 308C, 308D
1461978 PUMP AS-FUEL INJECTION
305.5, 306, 307B, 307C, 307D, 308C
2128641 PUMP GP-ENGINE OIL
305.5, 306, 307C, 307D, 308C, 308D
1905767 PUMP AS
305.5, 306, 307C, 307D, 308C, 308D
0857183 PUMP
305.5, 306, 307B, 307C, 307D
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