1666681 KIT-WHEEL CYLINDER Caterpillar parts
814B, 815B, 966D, D25C
Rating:
Alternative (cross code) number:
CA1666681
166-6681
1666681
CA1666681
166-6681
1666681
Weight: 4 pounds 2 kg.
ARTICULATED TRUCK, WHEEL LOADER,
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1666681 Wheel Cylinder Kit fits Caterpillar 814B 815B D25C 966D - Replaces 1666681-8V2539
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance.
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【PACK SIZE】This product is a pack of 1, making it easy to stock up and ensure you have the necessary parts on hand for maintenance.
1666681 Wheel Cylinder Kit fits Caterpillar 966D 814B 815B D25C - Replaces 1666681-8V2539
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
1666681 Wheel Cylinder Kit fits Caterpillar 966D 814B 815B D25C - Replaces 1666681-8V2539
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
ZBOX 【DESIGNED TO REPLACE】 1666681 - 8V2539 || 【FITMENT MODELS】 Fits Caterpillar 814B - 815B - D25C - 966D || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
Compatible equipment models: 1666681:
Information:
Conditions Which Generate This Code:
Illustration 1 g00722721
Rear view of the PRCM (1) 40-pin connector (2) Relay module
Table 1
Load Specifications For the Internal Relays of the PRCM    
Relay Module and Number     Ratings For Resistive Loads     Ratings For Inductive Loads    
"K1"     7 milliamperes to 1 Amperes (24 DCV)     None (1) (2) (3)    
"K2", "K3", "K4", "K5" (terminal 24), "K6" and "K7"     0.5 to 10 amperes (24 DCV)     0.5 to 10 Amperes (24 DCV) (3)    
"K5" (terminals 23 and 36)     0.5 to 10 Amperes (24 DCV) and 0.5 to 10 Amperes (24 ACV)     0.5 to 5 Amperes (24 DCV) and 0.5 to 7.5 Amperes (110 ACV)    
( 1 ) Do NOT connect inductive loads to these terminals.
( 2 ) The contacts of the relay that is connected to terminals 13 and 14 are gold flashed. The gold socket contact provides a source of low impedance for a low current resistive load. Loads that draw higher currents, currents that are of similar levels as terminals 23 and 36 in table 1 can be applied. However, if heavier loads are applied, the gold flashing will be permanently burned. This will eliminate the gold flashing from the contacts. This does not result in damage to the relay contacts, but the contacts can no longer be used for low current loads.
( 3 ) "K1" (terminals 13 and 14) is not fused.
Illustration 2 g00709866
The Connections for the PRCM to the Relay ModuleThe PRCM provides the internal relay outputs for customer's use. All relays are located in the relay module on the rear of the PRCM. If the CAT data link fails, the relay remains in the state required by the last valid input state. The relay may also be programmed to reset to the OFF position. Refer to Systems Operation, "Setpoint Viewing and Programming".The Possible cause of a CID 0479 FMI 04 is a short circuit of the "K3" relay coil. Clear the diagnostic code from the fault log when the troubleshooting procedure is completed.
Do not apply AC voltages to any relay module terminal other than terminals 23 and 36 of K5 and terminals 13 and 14 of K1 or permanent damage to the relay module will result. All other terminals have flyback diodes connected to them that increase relay life when driving inductive loads; however, this limits their use to DC voltages.
Note: All 3K-8782 Fuses ("AGC-10") in the relay module are rated at 10 Amperes DCV. Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE.
Turn the ECS to the OFF/RESET position and then turn the ECS to the STOP position.
Press the "MODE" key until the diagnostic code viewing/clearing menu appears.
Observe the upper display. Check that the CID 0479 FMI 04 is active.Note: The "DIAG" indicator will be flashing and the CID 0479 FMI 04 will be present on the display if the
Illustration 1 g00722721
Rear view of the PRCM (1) 40-pin connector (2) Relay module
Table 1
Load Specifications For the Internal Relays of the PRCM    
Relay Module and Number     Ratings For Resistive Loads     Ratings For Inductive Loads    
"K1"     7 milliamperes to 1 Amperes (24 DCV)     None (1) (2) (3)    
"K2", "K3", "K4", "K5" (terminal 24), "K6" and "K7"     0.5 to 10 amperes (24 DCV)     0.5 to 10 Amperes (24 DCV) (3)    
"K5" (terminals 23 and 36)     0.5 to 10 Amperes (24 DCV) and 0.5 to 10 Amperes (24 ACV)     0.5 to 5 Amperes (24 DCV) and 0.5 to 7.5 Amperes (110 ACV)    
( 1 ) Do NOT connect inductive loads to these terminals.
( 2 ) The contacts of the relay that is connected to terminals 13 and 14 are gold flashed. The gold socket contact provides a source of low impedance for a low current resistive load. Loads that draw higher currents, currents that are of similar levels as terminals 23 and 36 in table 1 can be applied. However, if heavier loads are applied, the gold flashing will be permanently burned. This will eliminate the gold flashing from the contacts. This does not result in damage to the relay contacts, but the contacts can no longer be used for low current loads.
( 3 ) "K1" (terminals 13 and 14) is not fused.
Illustration 2 g00709866
The Connections for the PRCM to the Relay ModuleThe PRCM provides the internal relay outputs for customer's use. All relays are located in the relay module on the rear of the PRCM. If the CAT data link fails, the relay remains in the state required by the last valid input state. The relay may also be programmed to reset to the OFF position. Refer to Systems Operation, "Setpoint Viewing and Programming".The Possible cause of a CID 0479 FMI 04 is a short circuit of the "K3" relay coil. Clear the diagnostic code from the fault log when the troubleshooting procedure is completed.
Do not apply AC voltages to any relay module terminal other than terminals 23 and 36 of K5 and terminals 13 and 14 of K1 or permanent damage to the relay module will result. All other terminals have flyback diodes connected to them that increase relay life when driving inductive loads; however, this limits their use to DC voltages.
Note: All 3K-8782 Fuses ("AGC-10") in the relay module are rated at 10 Amperes DCV. Test Step 1. CHECK THE STATUS OF THE DIAGNOSTIC CODE.
Turn the ECS to the OFF/RESET position and then turn the ECS to the STOP position.
Press the "MODE" key until the diagnostic code viewing/clearing menu appears.
Observe the upper display. Check that the CID 0479 FMI 04 is active.Note: The "DIAG" indicator will be flashing and the CID 0479 FMI 04 will be present on the display if the
Caterpillar parts catalog:
Parts kit Caterpillar catalog:
2436718
KIT-CRANKSHAFT BEARING
16G, 16H NA, 24H, 24M, 3406, 3406B, 3406C, 3406E, 3412, 3412C, 3412D, 3412E, 3456, 365C, 365C L, 365C L MH, 374D L, 374F L, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5080, 5...
16G, 16H NA, 24H, 24M, 3406, 3406B, 3406C, 3406E, 3412, 3412C, 3412D, 3412E, 3456, 365C, 365C L, 365C L MH, 374D L, 374F L, 375 L, 385B, 385C, 385C FS, 385C L, 385C L MH, 390D, 390D L, 390F L, 5080, 5...
7E8923
KIT-CRANKSHAFT BEARING
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 1673C, 1...
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12H ES, 12H NA, 12K, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160H, 160H ES, 160H NA, 160K, 163H, 163H NA, 1673C, 1...
9S2013
KIT-RELAY TERMINAL
120G, 120H, 120H ES, 120H NA, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 235, 24H, 30/30, 3114,...
120G, 120H, 120H ES, 120H NA, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 235, 24H, 30/30, 3114,...
9S2291
KIT-POSITIVE DIODE
120G, 120H, 120H ES, 120H NA, 12G, 12H ES, 12H NA, 130G, 135H NA, 140G, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 235, 3114, 3116, 3126B, 3176B, 3176C, 3196, 3...
120G, 120H, 120H ES, 120H NA, 12G, 12H ES, 12H NA, 130G, 135H NA, 140G, 140H ES, 140H NA, 143H, 14G, 14H NA, 160G, 160H ES, 160H NA, 163H NA, 16G, 16H NA, 235, 3114, 3116, 3126B, 3176B, 3176C, 3196, 3...
2339207
KIT-SEAL
120K, 120M, 12H, 12H ES, 12H NA, 12K, 12M, 140G, 140H, 140H ES, 140H NA, 140K, 140M, 14H, 14H NA, 14M, 160H, 160H ES, 160H NA, 160K, 160M, 16G, 16H, 16H NA, 16M, 446B, 446D, 450E, 613C, 613C II, 613G,...
120K, 120M, 12H, 12H ES, 12H NA, 12K, 12M, 140G, 140H, 140H ES, 140H NA, 140K, 140M, 14H, 14H NA, 14M, 160H, 160H ES, 160H NA, 160K, 160M, 16G, 16H, 16H NA, 16M, 446B, 446D, 450E, 613C, 613C II, 613G,...
8S4680
KIT-SEAL
130G, 140G, 16G, 215, 235, 245, 3208, 3304, 3306, 3306B, 3406, 3406B, 3408, 3412, 3508, 3512, 3516, 561C, 572G, 613, 627E, 637E, 815B, 826C, 920, 950B, 963, 966C, 977K, 980C, D4D, D5H, D6D, D7G, PR-75...
130G, 140G, 16G, 215, 235, 245, 3208, 3304, 3306, 3306B, 3406, 3406B, 3408, 3412, 3508, 3512, 3516, 561C, 572G, 613, 627E, 637E, 815B, 826C, 920, 950B, 963, 966C, 977K, 980C, D4D, D5H, D6D, D7G, PR-75...
7N7436
KIT-PISTON RING
14G, 16G, 3176, 3176B, 3304, 3306, 3306B, 3406B, 3406E, 3512, 615C, 621, 621E, 621R, 815B, 966C, 966D, 966F, 966F II, 980C, 980F, C-10, C-12, D25C, D300B, D30C, D350C, D35C
14G, 16G, 3176, 3176B, 3304, 3306, 3306B, 3406B, 3406E, 3512, 615C, 621, 621E, 621R, 815B, 966C, 966D, 966F, 966F II, 980C, 980F, C-10, C-12, D25C, D300B, D30C, D350C, D35C
6V1277
KIT-GASKET
3306, 814B, 815B, 816B, 966D, 973, D6D, G3306
3306, 814B, 815B, 816B, 966D, 973, D6D, G3306
1U0381
KIT (flex plate repair-large)
235, 615, 615C, 621, 621B, 621E, 621F, 621G, 623B, 623E, 627B, 627E, 627F, 627G, 631C, 633D, 641B, 651E, 657E, 657G, 773, 824C, 826C, 966C, 966D, 966R, 977L, 983B
235, 615, 615C, 621, 621B, 621E, 621F, 621G, 623B, 623E, 627B, 627E, 627F, 627G, 631C, 633D, 641B, 651E, 657E, 657G, 773, 824C, 826C, 966C, 966D, 966R, 977L, 983B
9W1495
KIT-METER SERVICE
215B, 215C, 215D, 225, 229, 229D, 231D, 235B, 235C, 235D, 245, 245B, 245D, 631E, 657E, 784B, 785, 785B, 789, 789B, 793B, 793C, 814B, 826C, 834B, 836, 916, 926, 926A, 936, 936F, 988B, 992C, D8L, D9L, I...
215B, 215C, 215D, 225, 229, 229D, 231D, 235B, 235C, 235D, 245, 245B, 245D, 631E, 657E, 784B, 785, 785B, 789, 789B, 793B, 793C, 814B, 826C, 834B, 836, 916, 926, 926A, 936, 936F, 988B, 992C, D8L, D9L, I...
2G7182
KIT-CARTRIDGE
611, 615, 615C, 621, 621B, 621E, 621F, 623E, 623F, 627B, 627E, 627F, 631E, 633E II, 637D, 637E, 641B, 651E, 657E, 69D, 768C, 769, 769C, 769D, 771C, 771D, 772, 773B, 773D, 775B, 775D, 776, 776C, 776D, ...
611, 615, 615C, 621, 621B, 621E, 621F, 623E, 623F, 627B, 627E, 627F, 631E, 633E II, 637D, 637E, 641B, 651E, 657E, 69D, 768C, 769, 769C, 769D, 771C, 771D, 772, 773B, 773D, 775B, 775D, 776, 776C, 776D, ...
2G7183
KIT-REFILL
611, 615, 615C, 621, 621B, 621E, 621F, 623E, 623F, 627B, 627E, 627F, 631E, 633E II, 637D, 637E, 641B, 651E, 657E, 69D, 768C, 769, 769C, 769D, 771C, 771D, 772, 773B, 773D, 775B, 775D, 776, 776C, 776D, ...
611, 615, 615C, 621, 621B, 621E, 621F, 623E, 623F, 627B, 627E, 627F, 631E, 633E II, 637D, 637E, 641B, 651E, 657E, 69D, 768C, 769, 769C, 769D, 771C, 771D, 772, 773B, 773D, 775B, 775D, 776, 776C, 776D, ...
9V0205
KIT-CYLINDER REPAIR
814B, 815B, 966D, D25D, D40D
814B, 815B, 966D, D25D, D40D
3G2865
KIT-FRONT
980C
980C
8V2540
KIT
966D, D25C, D30C, D350C, D35C, D35HP, D400
966D, D25C, D30C, D350C, D35C, D35HP, D400
7X2730
KIT-SEAL
980C, R1600, R1600G
980C, R1600, R1600G
7X2701
KIT-SEAL
980C, 980F, 980F II
980C, 980F, 980F II
7X2688
KIT-SEAL
980C, 980F, 980F II
980C, 980F, 980F II
2Y8739
KIT-REPAIR
966C
966C
8R1932
KIT-LINING
966C
966C