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RING-SEAL 3S1278 - Caterpillar


3S1278 RING-SEAL Caterpillar parts 621, 621B, 621E, 621F, 621G, 621H, 621K, 621R, 623, 623B, 623E, 623F, 623G, 623H, 623K, 623K LRC, 627, 627B, 627E, 627F, 627G, 627H, 627K, 627K LRC, 631C, 631E, 631G, 633C, 633D, 633E II, 637B, 637D, ...


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Rating:
16
Alternative (cross code) number:
CA3S1278
3S-1278
3S1278
Caterpillar 3S1278 RING-SEAL
Weight: 0.02 pounds 0 kg.
Information:
ID  367.87  mm
MATERIAL  (PTFE) Plastic - Glass filled 
RADIAL HEIGHT  1.52  mm
CS<br>STYLE  Rect Sq 
AXIAL WIDTH  2.29 

Buy RING-SEAL 3S1278 Caterpillar genuine, new aftermarket tractor parts with delivery
QUARRY TRUCK, WHEEL TRACTOR-SCRAPER,

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3S1278 - Ring-Seal for Caterpillar (CAT)
$22.02
 

28 Jan 2024

US: Florida-Parts-Z
3S1278 - Ring-Seal for Caterpillar (CAT)
FIRST PRICE PARTS
3S1278 - Ring-Seal for Caterpillar (CAT)
$22.02
 

15 Jul 2022

US: Florida-Parts-Z
3S1278 - Ring-Seal for Caterpillar (CAT)
FIRST PRICE PARTS
3S1278 Ring - Fits: 627K 657E 627K 631K 775D
$17.75
 

15 Jul 2022

Amazon.com
3S1278 Ring - Fits: 627K 657E 627K 631K 775D
GEN Compatible Models - 627K 657E 627K 631K 775D || Related Items - 3P8158 3P8161 3P8215 || PLANETARY TRANS GROUP
Show more prices Caterpillar parts
Number on catalog scheme: 17
Caterpillar 3S1278 Parts scheme RING-SEAL
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Compatible equipment models: 3S1278:

QUARRY TRUCK  775B   775D  
TRACTOR  772B  
TRUCK  769C   773B   773D   773E   773F   773G   773G LRC   773G OEM   775D   775E   775F   775G   775G LRC   775G OEM   777  
UNDERGROUND ART TRUCK  AD55B   AD60  
WHEEL LOADER  980   980B  
WHEEL SCRAPER  621E   623E   623F   627   627B   627E   637B   637D   657B   657E   657G  
WHEEL TRACTOR  621   621B   621E   621F   621G   621H   621R   623   623B   623E   623G   623H   627   627B   627E   627F   627G   627H   631C   631E   631G   633C   633D   633E II   637D   637E   637G   641B   650B   651E   657E   657G  
WHEEL TRACTOR-SCRAPER  621K   623K   623K LRC   627K   627K LRC   Caterpillar

Information:

3304 And 3306 Industrial EnginesDescription of Change: An improved plunger and a new spring are used in the mechanical shutoff groups on 3304 and 3306 Industrial Engines. A change was made to the design of the plunger. This change will keep the diaphragm out from behind the head of the plunger. Formerly, it was possible for the diaphragm to get behind the head of the plunger and prevent engine shut-off. The new spring is made of a different steel that has more resistance to the stresses in this application. The former spring has, at times, broken.
Adaptable As: The improved 3N2817 Plunger and the new 1W9509 Spring are direct replacements for the former 3N2817 Plunger and the former 4B258 Spring. The part number of the plunger did not change.
Location of parts in mechanical shutoff group.
New and former designs of plunger.

Cat SIS web machinery list:

Caterpillar parts catalog
773E Off-Highway Truck PRB00001-UP (MACHINE) POWERED BY 3412E Engine
773E Off-Highway Truck DJS00001-UP (MACHINE) POWERED BY 3412E Engine
775B Truck 7XJ00200-UP (MACHINE) POWERED BY 3412 Engine
773B Off-Highway Truck 63W04200-UP (MACHINE) POWERED BY 3412 Engine
773D Off-Highway Truck 7ER00001-00380 (MACHINE) POWERED BY 3412E Engine
775D Truck 6KR00001-00123 (MACHINE) POWERED BY 3412E Engine
773D Off-Highway Truck 7CS00001-UP (MACHINE) POWERED BY 3412E Engine
773D Off-Highway Truck 7ER00381-UP (MACHINE) POWERED BY 3412E Engine
775D Quarry Truck 6KR00124-UP (MACHINE) POWERED BY 3412E Engine
775D Quarry Truck 8AS00001-UP (MACHINE) POWERED BY 3412E Engine
773E Off-Highway Truck BDA00001-UP (MACHINE) POWERED BY 3412E Engine
775E Off-Highway Truck BEC00001-UP (MACHINE) POWERED BY 3412E Engine
773F Off-Highway Truck EED00001-UP (MACHINE) POWERED BY C27 Engine
775F Off-Highway Truck DLS00001-UP (MACHINE) POWERED BY C27 Engine
773D Off-Highway Truck NBJ00001-UP (MACHINE) POWERED BY 3412E Engine
773E Off-Highway Truck ASK00001-UP (MACHINE)
773G LRC Off-Highway Truck MWH00001-UP (MACHINE) POWERED BY C27 Engine
773F OEM Off-Highway Truck EXD00001-UP (MACHINE) POWERED BY C27 Engine
775F OEM Off-Highway Truck EYG00001-UP (MACHINE) POWERED BY C27 Engine
773G Off-Highway Truck JWS00001-UP (MACHINE) POWERED BY C27 Engine
775G Off-Highway Truck MJS00001-UP (MACHINE) POWERED BY C27 Engine
775G LRC Off-Highway Truck RFM00001-UP (MACHINE) POWERED BY C27 Engine
3412E Engine Emissions Retrofit Repower Tier I For 772B, 773B, And 775B Machines 63W00001-UP (MACHINE)
773G OEM Off-Highway Truck T5T00001-UP (MACHINE) POWERED BY C27 Engine
775G OEM Off-Highway Truck T5F00001-UP (MACHINE) POWERED BY C27 Engine
773G OEM Off-Highway Truck T5S00001-UP (MACHINE) POWERED BY C27 Engine
775G OEM Off-Highway Truck T5W00001-UP (MACHINE) POWERED BY C27 Engine
773E Off-Highway Truck KEG00001-UP (MACHINE) POWERED BY 3412E Engine
637K Wheel Tractor Scraper WTY00001-UP (MACHINE)
631K OEM Wheel-Tractor Sctraper WT400001-UP (MACHINE) POWERED BY C18 Engine
631K OEM Wheel-Tractor Scraper WT600001-UP (MACHINE) POWERED BY C18 Engine
657E Tractor PS PP 90Z00001-UP (MACHINE) POWERED BY 3412C Engine
651E Wheel Tractor-Scraper 89Z00001-UP (MACHINE) POWERED BY 3412 Engine
657E Wheel Scraper 86Z00001-UP (MACHINE) POWERED BY 3408 Engine
657E Coal Wheel Tractor-Scraper 6MB00001-UP (MACHINE) POWERED BY 3408 Engine
627E Scraper PS 6EB00001-UP (MACHINE) POWERED BY 3306 Engine
623E Wheel Tractor/Scraper 5SG00001-00479 (MACHINE) POWERED BY 3406 Engine
627E WHEEL Tractor-Scraper 3WJ00001-UP (MACHINE)
631E Series II Wheel Tractor-Scraper 1AB01446-01639 (MACHINE) POWERED BY 3408 Engine
637E Series II Wheel Tractor-Scraper 1FB00532-00659 (MACHINE) POWERED BY 3408 Engine
621E Wheel Tractor-Scraper 2PD01011-UP (MACHINE) POWERED BY 3406 Engine
631E Series II Wheel Tractor/Scraper 3ND00523-UP (MACHINE) POWERED BY 3408 Engine
621E Wheel Tractor-Scraper 6AB01428-UP (MACHINE) POWERED BY 3406 Engine
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
631E Series II Wheel Tractor 1AB01640-UP (MACHINE) POWERED BY 3408E Engine
637E Series II Wheel Tractor 1FB00660-UP (MACHINE) POWERED BY 3408E Engine
631E Series II Tractor 1NB00872-01389 (MACHINE) POWERED BY 3408C Engine
631E Series II Wheel Tractor 1NB01390-UP (MACHINE) POWERED BY 3408E Engine
657E Wheel Tractor 5YR00001-UP (MACHINE) POWERED BY 3412E Engine
657E Wheel Scraper 7KR00001-UP (MACHINE) POWERED BY 3408E Engine
633E Series II Wheel Tractor 2PS00001-UP (MACHINE) POWERED BY 3408E Engine
657E WHEEL SCRAPER-COAL BOWL 6PR00001-UP (MACHINE) POWERED BY 3408E Engine
657E Wheel Tractor 6TR00001-UP (MACHINE) POWERED BY 3412E Engine
651E Wheel Tractor 4YR00001-UP (MACHINE) POWERED BY 3412E Engine
623F Wheel Tractor-Scraper 3XW00001-UP (MACHINE) POWERED BY 3406C Engine
621G Wheel Tractor ALP00001-UP (MACHINE) POWERED BY 3406E Engine
623G Wheel Tractor ARW00001-UP (MACHINE) POWERED BY 3406E Engine
623G WHEEL SCRAPER AWB00001-UP (MACHINE)
627G Wheel Tractor AXF00001-UP (MACHINE) POWERED BY 3406E Engine
631G WHEEL TRACTOR AWK00001-UP (MACHINE) POWERED BY 3408E Engine
637G WHEEL TRACTOR AXT00001-UP (MACHINE) POWERED BY 3408E Engine
621G Wheel Tractor CEN00001-UP (MACHINE) POWERED BY 3406E Engine
623G Wheel Tractor CES00001-UP (MACHINE) POWERED BY 3406E Engine
627G Wheel Tractor CEX00001-UP (MACHINE) POWERED BY 3406E Engine
637G Wheel Tractor CEH00001-UP (MACHINE) POWERED BY 3408E Engine
631G Wheel Tractor CLR00001-UP (MACHINE) POWERED BY 3408E Engine
657G Wheel Tractor W1B00001-UP (MACHINE) POWERED BY C18 Engine
657G Wheel Scraper-Coal Bowl W1F00001-UP (MACHINE) POWERED BY C15 Engine
657G Wheel Scraper W1E00001-UP (MACHINE) POWERED BY C15 Engine
657G Wheel Tractor W1C00001-UP (MACHINE) POWERED BY C18 Engine
621G Wheel Tractor DBB00001-UP (MACHINE) POWERED BY C15 Engine
623G Wheel Tractor DBC00001-UP (MACHINE) POWERED BY C15 Engine
627G Wheel Tractor DBD00001-UP (MACHINE) POWERED BY C15 Engine
631G Wheel Tractor DFA00001-UP (MACHINE) POWERED BY C18 Engine
637G Wheel Tractor DFJ00001-UP (MACHINE)
657G Wheel Tractor-Auger A4G00001-UP (MACHINE) POWERED BY C-18 Engine
657G Wheel Scraper-Auger GER00001-UP (MACHINE) POWERED BY C-15 Engine
621H Wheel Tractor Scraper DBK00001-UP (MACHINE) POWERED BY C13 Engine
623H Wheel Tractor Scraper DBF00001-UP (MACHINE) POWERED BY C13 Engine
627H Wheel Tractor Scraper DBW00001-UP (MACHINE)
621G Wheel Tractor (US Military) KJW00001-UP (MACHINE) POWERED BY C15 Engine
AD55B Underground Articulated Truck JNW00001-UP (MACHINE) POWERED BY C27 Engine
621H Wheel Tractor Scraper EAZ00001-UP (MACHINE) POWERED BY C13 Engine
623H Wheel Tractor Scraper EJD00001-UP (MACHINE) POWERED BY C13 Engine
627H Wheel Tractor Scraper LCT00001-UP (MACHINE)
621G Wheel Tractor (US Military) NEL00001-UP (MACHINE) POWERED BY C15 Engine
621H OEM Wheel Tractor NYY00001-UP (MACHINE) POWERED BY C13 Engine
621H OEM Wheel Tractor HKK00001-UP (MACHINE) POWERED BY C13 Engine
621K Wheel Tractor-Scraper WTA00001-UP (MACHINE) POWERED BY C13 Engine
623K Wheel Tractor-Scraper WTB00001-UP (MACHINE) POWERED BY C13 Engine
627K Wheel Tractor-Scraper WTC00001-UP (MACHINE)
621K Wheel Tractor-Scraper WTL00001-UP (MACHINE) POWERED BY C13 Engine
623K Wheel Tractor-Scraper WTM00001-UP (MACHINE) POWERED BY C13 Engine
627K Wheel Tractor-Scraper WTN00001-UP (MACHINE)
AD60 Articulated Underground Truck KNW00001-UP (MACHINE) POWERED BY C27 Engine
621K OEM Wheel Tractor WTE00001-UP (MACHINE) POWERED BY C13 Engine
621K OEM Wheel Tractor WTP00001-UP (MACHINE) POWERED BY C13 Engine
631K Wheel Tractor Scraper WTR00001-UP (MACHINE) POWERED BY C18 ENGINE
637K Wheel Tractor Scraper WTS00001-UP (MACHINE)
637K Wheel Tractor Scraper WTT00001-UP (MACHINE)
631K Wheel Tractor Scraper WTW00001-UP (MACHINE) POWERED BY C18 Engine
637K Wheel Tractor Scraper WTX00001-UP (MACHINE)
AD60 Underground Articulated Truck NNW00001-UP (MACHINE) POWERED BY C27 Engine


Parts ring Caterpillar catalog:

6G1732 RING-LOCK
69D, 768C, 769C, 769D, 770, 770G, 770G OEM, 771C, 771D, 772, 772G, 772G OEM, AD55, AD55B, AD60, R2900G, R3000H
8T7693 RING
69D, 769C, 769D, 770, 770G, 770G OEM, 771C, 771D, 772, 772G, 772G OEM
3G3470 RING-WEAR
69D, 769C, 769D, 770G, 770G OEM, 771C, 771D, 772G, 772G OEM, 795F AC, 795F XQ, 797F
3402373 RING-RETAINING
769C, 769D, 770G, 770G OEM, 771C, 771D, 772G, 772G OEM
7J3300 RING-WEAR
69D, 769C, 769D, 771C, 771D, 773
8J9936 RING-WEAR
777, 777B, 777D
5P9957 RING-RETAINING
793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F, D10, D10N, D10R, D11N, D11R, D11T
3402376 RING-RETAINING
793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
8J2577 RING
769, 772, 773, 773B, 776, 777
9J1795 RING
769, 772, 773B, 776, 777
1T1355 RING
769C, 772B, 773B, 785, D35HP, D400
3K8692 RING-BACKUP
518, 518C, 844, 844H, 844K, 854G, 854K, D10N, D11N, D11R, D11T, D4HTSK II, D4HTSK III, D5HTSK II, D8R, D8R II, D8T, D9N, D9R, D9T
3S0141 RING-SEAL
641B, 650B, 651E, 657E, 657G, 777
1S6478 RING-SEAL
16, 641B, 650B, 651E, 657E, 657G, 769C, 772B, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, 824B, 993K, 994D, 994F, 994H, AD55B, AD60
8W2731 RING
651E, 657E
5D6285 RING-SEAL
641B, 650B, 651E, 657B, 657E, 657G
5S7779 RING-RETAINING
621, 621B, 621E, 621F, 621G, 621H, 621K, 621R, 623, 623B, 623E, 623F, 623G, 623H, 623K, 623K LRC, 627B, 627E, 627F, 627G, 627H, 627K, 627K LRC, 631C, 631E, 631G, 633C, 633D, 633E II, 637D, 637E, 637G,...
8W3064 RING-ADJUSTMENT
24H, 631E, 631G, 633E II, 637E, 637G, 651E, 657E, 657G, 770, 770G, 770G OEM, 772, 772B, 772G, 772G OEM, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G O...
5D6792 RING-RETAINING
16G, 24H, 24M, 611, 615, 615C, 621B, 623B, 627, 627B, 631C, 631E, 633D, 637D, 637E, 641B, 650B, 651E, 657B, 657E, 657G, 772, 773, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 77...
1S9496 RING-SEAL
621, 621B, 621E, 621F, 621G, 621H, 621K, 621R, 623, 623B, 623E, 623F, 623G, 623H, 623K, 623K LRC, 627, 627B, 627E, 627F, 627G, 627H, 627K, 627K LRC, 631C, 631E, 631G, 633C, 633D, 633E II, 637B, 637D, ...
3S1279 RING-SEAL
631E, 637E, 641B, 650B, 651E, 657E, 657G, 777, D7E, D7E LGP
1S7347 RING-SEAL
621, 621B, 621E, 621F, 621G, 621H, 621K, 621R, 623, 623B, 623E, 623F, 623G, 623H, 623K, 623K LRC, 627, 627B, 627E, 627F, 627G, 627H, 627K, 627K LRC, 631C, 631E, 631G, 633C, 633D, 633E II, 637D, 637E, ...
8S6328 RING-RETAINING
641B, 651E, 657E, 657G, 777
9S2843 RING-LOCK
631E, 637E, 641B, 651E, 657E, 657G, 69D, 735, 735B, 740, 740B, 768C, 769C, 769D, 770, 770G, 770G OEM, 771C, 771D, 772, 772G, 772G OEM, 777, AD45B, AD55, D400E II
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