VALVE-INLET 1085902 - Caterpillar



1085902 VALVE-INLET Caterpillar parts 16G, 3406, 3406B, 375, 375 L, 5080, 578, 621E, 621F, 623E, 623F, 627E, 627F, 814B, 826C, 980C, 980F, D8N, RR-250, SM-350, SS-250
Rating:
20
Alternative (cross code) number:
CA1085902
108-5902
1085902
Caterpillar 1085902 VALVE-INLET
Weight: 0.39 pounds 0 kg.

Buy VALVE-INLET 1085902 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR, WHEEL TRACTOR,

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$44.05

16 Oct 2025

US: QUALITY PARTS
108-5902 Valve-Inlet (Surplus Open Box) - G&T Engine Parts
G&T Engine Parts Fits equipment: MARINE PRODUCTS: 3406B, 3406; WHEEL TRACTOR-SCRAPER: 621F, 627E, 623F, 627F, 621E, 623E; PIPELAYER: 578; ENGINE - GENERATOR SET: 3406C, 3406B; MOTOR GRADER: 16H NA, 16G; WHEEL-TYPE LOADER: 980F II, 980F, 980C. || Condition: Surplus Open Box || Weight: 0.55 lbs || Related Items: 1085902, 1152368, 1w3859, 2w2622, 3848704, 4n5654, m1085902, m1152368, m1w3859, m2w2622, m3848704, m4n5654 || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
$499.99

11 Jun 2025

US: HD Switch
HD Switch BIGBearing HiTorque 210ftlb Solid Billet Rotor & Billet Pulley Blade PTO Clutch 114-8150 fits Toro Z Master Z593-D Z595-D Warner Type Mag-Stop PTO 5218-314 108-5902 108-5970 110-0862
HD Switch High Torque Coil: This OEM Upgrade Clutch is Diesel Tested at 210ftlbs of Torque. Higher Torque Means this Clutch holds Strong Even in the Toughest Cuts and Prevent damaging Microslipping. || BigBearing: Addresses the number 1 failure. A Bigger pulley bearing extends clutch life, and it is replaceable. || Billet Rotor: Designed for diesel and tough applications. The HD Clutch inner rotor is a 1-piece solid steel rotor. || Tough Billet Pulleys: Billet Pulleys Reduce Belt Wear and Maintain Perfect Blade Speed. Our Billet Pulley Design uses a Snap Ring and Allows for Bearing Replacement || Premium C3 Bearings: To Combat Heat HD Designed and Spec’d these bearings with C3 Clearances, Premium High Temperature Grease and on Most Models a Larger Tougher Bearing. Cool Coil Technology & Premium C3 Bearings: We use a Proprietary Composite Material Instead of Plastic. This Allows the heat to Escape the Clutch Faster and We Use a Premium C3 Bearing Designed Specifically for Clutch Heat. Less Heat & Premium Bearings = Longer Life
$479.99
 

18 Jul 2024

US: HD Switch
HD Switch 114-8150 BigBearing Solid Billet Rotor & Billet Pulley HiTorque 205ftlb Blade PTO Clutch fits Toro Z Master Z593-D Z595-D fits Warner Type Mag-Stop PTO 5218-314 108-5902 108-5970 110-0862
HD Switch Tough Billet Pulleys: Billet Pulleys Reduce Belt Wear and Maintain Perfect Blade Speed. Our Billet Pulley Design uses a Snap Ring and Allows for Bearing Replacement. || High Torque Coil: Higher Torque Means this Clutch holds Strong Even in the Toughest Cuts. || Premium C3 Bearings: HD Designed and Spec’d these bearings with C3 Clearances, Premium High Temperature Grease and on Most Models a Larger Tougher Bearing. || Cool Coil Technology: We use a Proprietary Composite Material Instead of Plastic. This Allows the heat to Escape the Clutch Faster. Less Heat = Longer Life || LIGHTNING-FAST HANDLING: ALL Orders Before 2pm EST HANDLE SAME DAY
Number on catalog scheme: 2
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Compatible equipment models: 1085902:

EXCAVATOR  375   375 L  
FRONT SHOVEL  5080  
GEN SET ENGINE  3406B  
INDUSTRIAL ENGINE  3406   3406B  
LANDFILL COMPACTOR  826C  
MARINE ENGINE  3406B  
MOTOR GRADER  16G  
PIPELAYER  578  
ROAD RECLAIMER  RR-250  
SOIL STABILIZER  SS-250  
STABILIZER MIXER  SM-350  
TRACK-TYPE TRACTOR  D8N  
TRUCK ENGINE  3406B  
WHEEL DOZER  814B  
WHEEL LOADER  980C   980F  
WHEEL SCRAPER  623E   623F   627E  
WHEEL TRACTOR  621E   621F   627F   Caterpillar

Cat SIS web machinery list:

Caterpillar parts catalog
3406B Truck Engine 4MG03600-UP
3406B Truck (PEEC) Engine 8TC01413-UP
3406B Generator Set 4RG00001-01501
3406 Industrial Engine 90U19731-UP
3406B Truck Engine(PEEC) 5YG00001-UP
3406B Truck Engine 5KJ00001-07799
3406B Truck Engine(PEEC) 2EK00001-UP
3406B Truck Engine 3ZJ00001-16181
3406B Truck Engine (PEEC III) 4CK00001-00845
3406B Generator Set Engine 4JK00001-00098
3406C Truck Engine (Electronic) 4CK00846-UP
3406C Truck Engine 3ZJ16182-60112
3406C Truck Engine 5KJ07800-UP
3406C Truck Engine 3ZJ60113-UP
3406C Marine Engine 4TB03482-UP
3406C Industrial Engine 6TB09857-UP
3406C Generator Set 2WB11476-UP
3406C Generator Set 4JK00099-UP
3406C Generator Set Engine 4RG01502-UP
RM-350, SM-350 Reclaimer, Stabilizer Mixer 1RM00001-00059 (MACHINE) POWERED BY 3406C Engine
RR-250 Road Reclaimer 6ED00363-00440 (MACHINE) POWERED BY 3054 Engine
SS-250 Soil Stabilizer 6DD00324-00389 (MACHINE) POWERED BY 3406 Engine
826C Landfill Compactor 87X00587-UP (MACHINE)
16G Motor Grader 93U02679-UP (MACHINE) POWERED BY 3406 Engine
578 Pipelayer 8HB00001-UP (MACHINE) POWERED BY 3406 Engine
3406C Industrial Engine 6TB09857-UP
3406 Engine Emissions Upgrade Group Retrofit Tier I Equivalent Level for 16G & 16H Motor Grader 6ZJ00001-UP (MACHINE)
375 & 375 L Excavators 1JM00001-UP (MACHINE) POWERED BY 3406 Engine
375 and 375 L Excavators 6NK00001-UP (MACHINE) POWERED BY 3406 Engine
5080 Excavator 6XK00001-UP (MACHINE) POWERED BY 3406B Engine
980C Wheel Loader 63X06575-UP (MACHINE) POWERED BY 3406 Engine
627E WHEEL Tractor-Scraper 3WJ00001-UP (MACHINE)
980F Wheel Loader 8CJ00001-UP (MACHINE) POWERED BY 3406 Engine
621E Wheel Tractor-Scraper 6AB01428-UP (MACHINE) POWERED BY 3406 Engine
D8N Track-Type Tractor 7TK00001-UP (MACHINE)
621F Wheel Tractor Scraper 4SK00001-UP (MACHINE) POWERED BY 3406 Engine
621F Wheel Tractor-Scraper 8PL00001-UP (MACHINE) POWERED BY 3406C Engine
627F Wheel Tractor Scraper 1DL00001-UP (MACHINE)
623F Wheel Tractor-Scraper 5SG00480-UP (MACHINE) POWERED BY 3406C Engine
623F Wheel Tractor-Scraper 3XW00001-UP (MACHINE) POWERED BY 3406C Engine
3406 Engine Emissions Retrofit Upgrade Tier I for 621E,621F,623E,623F,627E,627F, and 814B Tractor and Scraper 16Z00001-UP (MACHINE)
3406 Engine Emissions Upgrade Group Retrofit Tier I Equivalent Level for 980C, 980F, & 980F Series II Wheel Loader 63X00001-UP (MACHINE)


Information:

Description
Illustration 1 g01285804
Location of the Field Coil Driver (1) Field Coil Driver Assembly
Illustration 2 g01285844
Field Coil Driver AssemblyThe Field Coil Driver Assembly (1) provides DC current to the upper field coil and the lower field coil of each flywheel assembly. The assembly (1) consists of two field coil driver boards and a heat sink. The assembly (1) is located behind the swing out panel at the top of the cabinet for the flywheel.Removal Procedure
Refer to Systems Operation, Testing and Adjusting, RENR7654, "Internal Component Preremoval Steps (Flywheel Cabinet)" in order to shut down the system and gain access to internal components.
Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins. When not in use, keep the module in the static-shield bag. Follow these guidelines when you handle any module:Touch a grounded object to discharge static potential.Wear an approved wrist-strap grounding device.Do not touch the bus connector or connector pins.Do not touch circuit components inside the module.If available, use a static-safe work station.
Illustration 3 g01285940
Diagram of the Field Coil Driver Board
Disconnect all connectors. Refer to Illustration 3. Verify each label for each connector for subsequent installation.
Remove the left front bolt and the right rear bolt that holds the assembly (1) to the top of the cabinet for the flywheel.
Loosen the left rear bolt and the right front bolt that holds the assembly (1) to the top of the cabinet for the flywheel.
Remove the assembly (1) off the loosened bolts in order to remove the assembly (1) from the cabinet.Installation Procedure
Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins. When not in use, keep the module in the static-shield bag. Follow these guidelines when you handle any module:Touch a grounded object to discharge static potential.Wear an approved wrist-strap grounding device.Do not touch the bus connector or connector pins.Do not touch circuit components inside the module.If available, use a static-safe work station.
Position the assembly (1) under the two loosened bolts at the top of the cabinet for the flywheel.
Tighten the two bolts.
Install the remaining two bolts that hold the assembly to the top panel of the cabinet.
Tighten the bolts to the appropriate specifications.
Install all connectors to the boards. Verify the labeling on each connector with the location of the connector. Refer to Illustration 3.
Calibrate the Field Coil Driver. Refer to Systems Operation, Testing and Adjusting, RENR9988, "Flywheel Field Coil Current - Calibrate".

Parts valve Caterpillar catalog:

4D2295 VALVE
613C, 621E, 631E, 641B, 657, 769C, 769D, 771C, 771D, 772, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777D, 784B, 785B, 789B, 793B, 793C, 920, 926, 930, 936F, 950, 950F, 966C, 966D, 980C, 980F, D9H
3D2239 VALVE AS-TIRE
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 130G, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 160H, 160K, 160M...
2D2510 VALVE
16, 16G, 621, 621B, 621E, 621F, 623, 623B, 623E, 627, 627B, 627E, 630A, 630B, 631B, 631C, 633, 633C, 637, 637B, 641, 641B, 650B, 651, 651B, 657, 657B, 666, 776, 777, 824B, 825B, 834, 980C, 988, 992, 9...
1432677 VALVE-AIR RELIEF
611, 615C, 621E, 621F, 623E, 623F, 627E, 627F, 631E, 633E II, 637E, 651E, 657E, 69D, 769C, 769D, 771C, 771D, 773B, 773D, 775B, 775D, 776C, 776D, 777D, 785C, 785D, 789D, 793B, 793C, 793D, 797B, 994, 99...
8X5444 VALVE GP-RELAY
16G, 16H NA, 611, 615C, 621E, 621F, 621G, 623E, 623F, 623G, 627E, 627F, 627G, 631E, 631G, 633E, 637E, 637G, 651E, 657E, 657G, 769D, 771D, 773D, 775D, 776C, 777D
6K6824 VALVE AS-CHECK
518, 528, 623E, 920, 930
8D7057 VALVE-GOVERNOR CONTROL
621F, 623E, 623F, 627F, 769C, 771C, 772B, 773B, 775B, 777, 777B, 785, 994
4D1138 VALVE
120G, 120H, 12G, 12H, 12H NA, 130G, 135H, 140G, 140H, 140H NA, 143H, 14G, 14H, 14H NA, 160G, 160H, 163H, 16G, 16H, 16H NA, 5110B, 518, 5230, 5230B, 528, 621B, 631C, 633C, 639D, 666, 769, 769C, 769D, 7...
4D3398 VALVE
120G, 650B, 666, 768B, 768C, 769, 769C, 770, 770G, 770G OEM, 771D, 772, 772G, 772G OEM, 920, 930, 988, 988B, 992, 992C, AD30, AD45, AD45B, AE40 II, R1600, R1600G, R1600H, R1700 II, R1700G, R2900, R290...
6V4705 VALVE GRINDING
3306, 814B, 815B, 816B, 966D
5V8927 VALVE AS
814B, 824C, 834B, 950B/950E, 950F, 950F II, 960F, 966D, 966F, 980C, 980F, 980F II, 988B, 992C
9U4537 VALVE GP-TIRE
834B, 844, 844H, 844K, 980C, 980F, 980F II, 988B, 988F, 988F II, 990, 990 II, 990H, 990K, AD55, AD55B, AD60, R2900G, R3000H, RM-300, RM-350B, RM-500
1389057 VALVE
14H NA, 14M, 16G, 16H NA, 3116, 3176C, 3196, 3306, 3306C, 3406B, 3406C, 3406E, 611, 615C, 621F, 623E, 623F, 627F, 814B, 980C, 980F, C-10, C-12, C11, C13, C15, C18, C7, C9, CX31-C13I, CX31-C15I, CX35-P...
1072731 VALVE GP-SOLENOID
3412C, 3516, C18, CG137-08, CG137-12, CX35-P800, G3304B, G3306, G3306B, G3406, G3408, G3408C, G3412, G3412C, G3508, G3508B, G3512, G3512B, G3516, G3516B, G3520B
6D0238 VALVE AS
120B, 120G, 12G, 130G, 140B, 1673C, 1674, 1676, 1693, 215, 225, 235, 3160, 3176, 3176B, 3176C, 3196, 3208, 3304, 3306, 518, 627B, 637D, 910, 920, 930, 931B, 931C, 941, 950, 951B, 955K, 955L, 966C, 977...
1777374 VALVE-CHECK
3126B, 3176C, 3196, C13, C15, C18, C30, C32, C7, C9, TH35-C13T, TH35-C15T
3009952 VALVE AS-CHECK
3126B, 3176C, 3196, C-12, C12, C13, C15, C18, C32, C7, C9, TH35-C13T, TH35-C15T, TH48-E70
2767333 VALVE-BALL
3406E, C-15, C15, C18, G3516C
1650536 VALVE AS-CHECK
24H, 3412E, 5110B, 631D, 631E, 651E, 657E, 769C, 769D, 773B, 773D, 773E, 775B, 775E, 834B, 844, 988B, 988F II, 990, 992C, C30, C32, D10N, D8L, D9L, D9N
2338136 VALVE-CHECK
24H, 3412E, 5110B, 631D, 631E, 651E, 657E, 769C, 769D, 773B, 773D, 773E, 775B, 775E, 834B, 844, 988B, 988F II, 990, 992C, C30, C32, D10N, D8L, D9L, D9N
1384313 VALVE
24H, 3408E, 3412E, 5110B, 631D, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 69D, 769C, 769D, 771D, 773B, 773D, 773E, 775B, 775D, 775E, 834B, 836, 844, 988B, 988F II, 990, 990 II, 992C, AD40, AD45, AE...
1212028 VALVE-INLET
3508, 3508B, 3512, 3512B, 3516, 3516B
3R8116 VALVE-PRESSURE RELIEF
3406B, 3508, 3512, 3516, 508
1061111 VALVE-EXHAUST
16G, 3406, 3406B, 375, 375 L, 5080, 578, 621E, 621F, 623E, 623F, 627E, 627F, 814B, 826C, 980C, 980F, D8N, G3606, G3608, G3612, G3616, RR-250, SM-350, SS-250