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SEAL-O-RING 3678470 - Caterpillar


3678470 SEAL-O-RING Caterpillar parts 324D, 329D LN, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E L, 336E LN, 336F L, 340D L, 340D2 L, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L,...
Rating:
59
Alternative (cross code) number:
CA3678470
367-8470
3678470
Caterpillar 3678470 SEAL-O-RING
Weight: 0.14 pounds 0 kg.

Buy SEAL-O-RING 3678470 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR,

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$20.29

26 Aug 2025

US: QUALITY PARTS
3678470 Seal O Ring (New AFTERMARKET) - G&T Engine Parts
G&T Engine Parts Fits equipment: EXCAVATOR: 345D L, 345C, 349EL, 340F, 324D L, 345D L VG, 330D L, 349D2 L, 349D2, 336F L, 349DL, 345CL, 336D2 L, 336D, 340D2 L, 336D L, 336F L XE, 336F LN, 349E, 336D2 GC, 336D2 L XE, 345D, 349EL VG, 336D2, 329D LN, 336EL, 330D LN, 336D LN, 330D, 349D, 329D L, 352F-VG, 340F L LRE, 336E LN, 340D L, 349FL, 336E, 336D2 XE, 349FL XE, 330D MH, 336F LN XE, 324D. || Condition: NEW AFTERMARKET || Weight: 0.44 lbs || Dimensions: 10-11.03-11.03 in || 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.
$16.97
 

07 Jul 2022
0.1984[0.09] Pounds
US: ProperBuy
CTP Caterpillar Hnbr (78) O-Ring (3678470) Aftermarket
CTP
$19.04
 

06 Mar 2019

REPLACEMENT CATERPILLAR: REPLACEMENT CAT
CATERPILLAR 3678470 SEAL-LINKAGE NEW
Number on catalog scheme: 3
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Information:

System Operation Description:Use this procedure to troubleshoot suspect problems with the circuit for the sensor supplies.This procedure covers the following diagnostic codes:
41-3 8 Volt DC Supply : Voltage Above Normal
41-4 8 Volt DC Supply : Voltage Below Normal
145-3 12 Volt DC Power Supply : Voltage Above Normal
145-4 12 Volt DC Power Supply : Voltage Below Normal
262-3 5 Volt Sensor DC Power Supply : Voltage Above Normal
262-4 5 Volt Sensor DC Power Supply : Voltage Below NormalThe Electronic Control Modules (ECM) supply operating voltage to the engine's sensors. Refer to Illustration 1 for details.Note: Terminals J1-2 and J1-18 are connected together inside the ECM. A short circuit on one of these terminals will cause a short circuit on the other terminal.The most likely cause of a diagnostic code are a poor connection or a problem in a wiring harness. The next likely cause is a problem with a sensor. The least likely cause is a problem with the ECM.Logged diagnostic codes provide a historical record. Before you begin this procedure, use Caterpillar Electronic Technician (ET) to print the logged codes to a file.This troubleshooting procedure may generate additional diagnostic codes. Keep your mind on correcting the cause of the original diagnostic code. Clear the diagnostic codes after the problem is resolved."DESIRED SPEED" Potentiometer (if equipped)The ECM provides 5.0 0.5 VDC to the "DESIRED SPEED" potentiometer (if equipped).A 262-3 diagnostic code is activated if both of these conditions occur:
The desired speed signal wire is shorted to a voltage source that is greater than +5 volts.
The "DESIRED SPEED" potentiometer is near the maximum desired speed or at the maximum desired speed.A 262-4 diagnostic code is activated if both of these conditions occur:
The desired speed signal wire is shorted to ground.
The "DESIRED SPEED" potentiometer is near the maximum desired speed or at the maximum desired speed.Illustration 1 is the schematic diagram for the operating voltage to the sensors. If the optional Auxiliary Sensing Module is not installed, the air inlet pressure sensor is connected to the ECM.
Illustration 1 g01325468Test Step 1. Inspect the Electrical Connectors and Wiring
Remove the electrical power from the engine. Note: For the following steps, refer to Troubleshooting, "Electrical Connectors - Inspect".
Thoroughly inspect the following connectors:
ECM connectors
Connectors on the terminal box
Check the torque of the allen head screws for the ECM connectors.
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the circuits for the sensors.
Check the harness and wiring for corrosion, for abrasion and for pinch points from each sensor to the ECM. Expected Result:All connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - All connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points. The components are in good condition with proper connections. If you are troubleshooting a problem with the 5 volt supply for the ECM, proceed to Test Step 2. Otherwise, proceed to Test Step 4.
Not

Cat SIS web machinery list:

Caterpillar parts catalog
336 Excavator JHD00001-UP (MACHINE) POWERED BY C9.3B Engine
340 Excavator TYH00001-UP (MACHINE) POWERED BY C9.3B Engine
352F XE VG Excavator XAJ00001-UP (MACHINE) POWERED BY C13 Engine
352F XE VG Excavator SD200001-UP (MACHINE) POWERED BY C13 Engine
336F & 336F L Excavators DSW00001-UP (MACHINE) POWERED BY C9.3 Engine
336F XE & 336F LXE Excavators NAJ00001-UP (MACHINE) POWERED BY C9.3 Engine
349F & 349F L Excavators HLB00001-UP (MACHINE) POWERED BY C13 Engine
352F Excavator WNA00001-UP (MACHINE) POWERED BY C13 Engine
349D2 L Excavator GAX00001-UP (MACHINE) POWERED BY C13 Engine
336F L & 336F LN Excavators KCS00001-UP (MACHINE) POWERED BY C9.3 Engine
352F XE Excavator MDR00001-UP (MACHINE) POWERED BY C13 Engine
336D2 L Excavator MBP00001-UP (MACHINE) POWERED BY C9 Engine
340F Excavator RBD00001-UP (MACHINE) POWERED BY C9.3 Engine
336D2 L Excavator DGR00001-UP (MACHINE) POWERED BY C9 Engine
336D2 L Excavator TMC00001-UP (MACHINE) POWERED BY C9 Engine
336 Excavator YBN00001-UP (MACHINE) POWERED BY C9.3B Engine
336 GC Excavator EBJ00001-UP (MACHINE) POWERED BY C7.1 Engine
336 Excavator GDY00001-UP (MACHINE) POWERED BY C9.3 Engine
336 GC Excavator JFW00001-UP (MACHINE) POWERED BY C7.1 Engine
336 Excavator DKS00001-UP (MACHINE) POWERED BY C9.3B Engine
336 Excavator SP900001-UP (MACHINE) POWERED BY C9.3 Engine
345 GC Excavator KEF00001-UP (MACHINE) POWERED BY C9.3 Engine
336 Excavator FEL00001-UP (MACHINE) POWERED BY C9.3B Engine
349 Excavator LKG00001-UP (MACHINE) POWERED BY C13 Engine
352 Excavator MGR00001-UP (MACHINE) POWERED BY C13 Engine
349 Excavator RBY00001-UP (MACHINE) POWERED BY C13 Engine
330D & 330D L Excavators EDX00001-UP (MACHINE) POWERED BY C9 Engine
345C L Hydraulic Excavator ESD00001-UP (MACHINE) POWERED BY C13 Engine
345C LC Excavator DHP00001-UP (MACHINE) POWERED BY C13 Engine
345C & 345C L Excavators BWY00001-UP (MACHINE) POWERED BY C13 Engine
345C Excavator TAJ00001-UP (MACHINE) POWERED BY C13 Engine
345C & 345C L Hydraulic Excavator ELS00001-UP (MACHINE) POWERED BY C13 Engine
345C UHD Excavator SPC00001-UP (MACHINE) POWERED BY C13 Engine
330D L & 330D N Hydraulic Excavator GGE00001-UP (MACHINE) POWERED BY C-9 Engine
345C L Hydraulic Excavator FPC00001-UP (MACHINE) POWERED BY C13 Engine
345C L Hydraulic Excavator GPH00001-UP (MACHINE) POWERED BY C13 Engine
345C L Hydraulic Excavator LYS00001-UP (MACHINE) POWERED BY C13 Engine
330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine
330D L Excavator T2Y00001-UP (MACHINE) POWERED BY C-9 Engine
330D Material Handler PEL00001-UP (MACHINE) POWERED BY C9 Engine
330D L Excavators B6H00001-UP (MACHINE) POWERED BY C9 Engine
330D & 330D L Excavators EAH00001-UP (MACHINE) POWERED BY C9 Engine
330D Excavator ERN00001-UP (MACHINE) POWERED BY C-9 Engine
330D L Excavator HAS00001-UP (MACHINE) POWERED BY C9 Engine
345D Excavator NEG00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavator JKN00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavators PBT00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavator EEH00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavator YEE00001-UP (MACHINE) POWERED BY C13 Engine
345C L Excavator S5M00001-UP (MACHINE) POWERED BY C13 Engine
330D L Excavator LRM00001-UP (MACHINE) POWERED BY C9 Engine
345D L Excavators RGG00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavators RGD00001-UP (MACHINE) POWERED BY C13 Engine
345C L Excavator SCN00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavator MLK00001-UP (MACHINE) POWERED BY C13 Engine
324D & 324D L Excavators JZR00001-UP (MACHINE) POWERED BY C7 Engine
330D L Excavator R2D00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator W3K00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator J2F00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator WET00001-UP (MACHINE) POWERED BY C9 Engine
336D L & 336D LN Excavator KDJ00001-UP (MACHINE) POWERED BY C9 Engine
336D & 336D L Excavators KKT00001-UP (MACHINE) POWERED BY C9 Engine
336D & 336D L Excavators JBT00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavators M4T00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator JBF00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator DTS00001-UP (MACHINE) POWERED BY C9 Engine
336D & 336D L Excavators PGW00001-UP (MACHINE) POWERED BY C9 Engine
345D L Excavator BYC00001-UP (MACHINE) POWERED BY C13 Engine
329D L & 329D LN Excavators EBM00001-UP (MACHINE) POWERED BY C7 Engine
336D L & 336D LN Excavators MYG00001-UP (MACHINE) POWERED BY C9 Engine
345D L Excavators KFH00001-UP (MACHINE) POWERED BY C13 Engine
345D L Excavators NLM00001-UP (MACHINE) POWERED BY C13 Engine
336E L & 336E LN Excavators TMZ00001-UP (MACHINE) POWERED BY C9.3 Engine
336E L Excavators BZY00001-UP (MACHINE) POWERED BY C9.3 Engine
349E L Excavators KFX00001-UP (MACHINE) POWERED BY C13 Engine
349E L Excavators MPZ00001-UP (MACHINE) POWERED BY C13 Engine
349E L-VG Excavators DGE00001-UP (MACHINE) POWERED BY C13 Engine
336D L Excavator LMG00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator JWR00001-UP (MACHINE) POWERED BY C9 Engine
336E L Excavators FJH00001-UP (MACHINE) POWERED BY C9.3 Engine
340D L Excavator JTN00001-UP (MACHINE) POWERED BY C9 Engine
349D & 349D L Excavators MEN00001-UP (MACHINE) POWERED BY C13 Engine
349D L Excavator PZG00001-UP (MACHINE) POWERED BY C13 Engine
349D L Excavators JGB00001-UP (MACHINE) POWERED BY C13 Engine
349D L Excavator WTD00001-UP (MACHINE) POWERED BY C13 Engine
336E & 336E L Excavators CMR00001-UP (MACHINE) POWERED BY C9.3 Engine
349E & 349E L Excavators FJB00001-UP (MACHINE) POWERED BY C13 Engine
349D L Excavator RBJ00001-UP (MACHINE) POWERED BY C13 Engine
336D L Excavator PTB00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator MDS00001-UP (MACHINE) POWERED BY C9 Engine
336D L Excavator ZML00001-UP (MACHINE) POWERED BY C9 Engine
336D L Mobile Hydraulic Power Unit L5X00001-UP (MACHINE) POWERED BY C9 Engine
349D & 349D L Excavators GKF00001-UP (MACHINE) POWERED BY C13 Engine


Parts seal Caterpillar catalog:

2552272 SEAL GP-DUO-CONE
328D LCR, 330C L, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L, 345C MH, 345D L, 349D L, 349E, 349E ...
2059025 SEAL GP-DUO-CONE
330C, 330D L, 330D MH, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L
1264002 SEAL-O-RING
330C, 330D L, 330D MH, 345B II, 345B II MH, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 374D L, 374F L
2147880 SEAL GP-DUO-CONE
345B II, 345C, 345C L, 365B, 365B II, 365C, 365C L, 365C L MH, 374D L, 374F L
3678471 SEAL-O-RING
345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L VG, 349F L, 365B II, 365C, 365C L, 374D L, 374F L, 385B, 385C, 385C L, 390D, 390D L, 390F L
0931347 SEAL-O-RING
328D LCR, 345B II, 345B L, 345C, 345C L, 345D L, 349E L, 349E L VG, 349F L, 350, 365B, 365B II, 365B L, E650
2590734 SEAL-U-CUP
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2667957 SEAL-BUFFER
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2667960 SEAL-O-RING
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
2590736 SEAL-U-CUP
345B II, 345C, 345D, 345D L, 349D, 349D L
2667958 SEAL-BUFFER
345B II, 345C, 345D, 345D L, 349D, 349D L
1289270 SEAL-U-CUP
330B, 330B L, 330C L, 330D, 330D L, 336D
1915646 SEAL-U-CUP
324D, 325C, 325D L, 328D LCR, 330C, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 340D L, 385C L
3338688 SEAL-U-CUP
324D, 329D LN, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E L, 336E LN, 336F L, 340D L, 340D2 L, 345B II, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349E...
3338687 SEAL-BUFFER
324D, 329D LN, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E L, 336E LN, 336F L, 340D L, 340D2 L, 345B II, 345C, 345C L, 345D, 345D L, 345D L VG, 349D, 349D L, 349E...
3640951 SEAL-U-CUP
320D, 320D FM, 320D2
2966165 SEAL-RING
320D, 320D GC, 323D L, 323D2 L
3423574 SEAL
323E L, 324D L, 324E, 324E LN, 329D L, 329D LN, 329E, 329E LN, 336D L, 336D LN, 336E, 336E H, 336E LH, 336E LN, 345D, 345D L, 345D L VG, 349D L, 349E, 349E L VG, 374F L, 390F L
3423572 SEAL
323E L, 324D L, 324E, 324E LN, 329D L, 329D LN, 329E, 329E LN, 336D L, 336D LN, 336E, 336E H, 336E HVG, 336E LH, 336E LN, 345D, 345D L, 345D L VG, 349D L, 349E, 349E L HVG, 349E L VG, 374F L, 390F L
1645165 SEAL
321C, 321D LCR, 325C, 328D LCR
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