AVSPARE.COM
parts catalog

RING-SEAL 2478789 - Caterpillar


2478789 RING-SEAL Caterpillar parts 315C, 315D L, 316E L, 318D L, 318D2 L, 318E L, 319D, 319D L, 319D LN, 320C, 320D, 320D FM, 320D FM RR, 320D2, 320D2 L, 323D L, 323D LN, 323D SA
Rating:
42
Alternative (cross code) number:
CA2478789
247-8789
2478789
Caterpillar 2478789 RING-SEAL
Weight: 0.03 pounds 0 kg.
Information:
GAP  8  mm
ID  69.08  mm
THICKNESS  8.5  mm
WALL THICKNESS  4.96  mm

Buy RING-SEAL 2478789 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR,

Compare Prices: .

As an associate, we earn commssions on qualifying purchases through the links below
$29.99

23 Oct 2025

US: Work House Sign
Marathon Red Frame With Hearts A-Frame Double Sided 23x23 in. sign
Work House Signs Durable Folding A-Frame Sign – Made from industrial-grade coroplast (corrugated plastic) that is lightweight, waterproof, and UV-resistant, built to handle indoor or outdoor use. || Double-Sided Display – Features two 23"x23" sign panels for maximum visibility from both directions, making it ideal for sidewalk advertising, storefront signage, open house signs, and event promotions. || Lightweight & Portable – Easy to carry, set up, and fold flat for compact storage or transport; perfect for temporary business signs, trade shows, and real estate marketing. || Versatile Business Signage – Use as a sidewalk sign, retail display board, restaurant menu stand, or event directional sign—a cost-effective solution for high-impact advertising. || Professional Presentation – Clean, modern design delivers a polished look that draws attention to your message, ideal for small businesses, restaurants, boutiques, and service providers.
$26.99

19 Sep 2024

RU: conghuan2001a
#US Replacement Part for Starter Solenoid Relay Fits for Kawasaki KLT200 DUCSTER 1981 82 1983 relpart#2478789
Generic NOTE - Package included: 1 Set ONLY. Please check all carefully (photos and model) and make sure it will compatible with your original one. || Manufacturer Part Number: AIT21Sol-Eb-37.
$16.58
 

07 Mar 2022

US: Florida-Parts-Z
2478789 - Ring-Seal for Caterpillar (CAT)
FIRST PRICE PARTS
Number on catalog scheme: 16
  For full view, you need register

Compatible equipment models: 2478789:

Information:

Disassembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     132-5451     Holding Fixture     1    
B     1U-6400     Three Jaw Puller     1    
C     1P-0510     Driver Gp     1    
D     1U-6671     Flange Puller Tool Group     1    
E     1U-7608     Chain Wrench     1    
F     1P-1859     Retaining Ring Pliers     1    
G     1P-1857     Retaining Ring Pliers     1    Start By:
Remove the auxiliary water pump. Refer to Disassembly and Assembly, "Auxiliary Water Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01051914
Remove bolts (5) . Remove manifold (6) , the plate, and the gaskets from the body of the auxiliary water pump.
Remove guide pin (4) from manifold (6) . Remove the O-ring seal from the guide pin.
Remove nut (1) and the washer from the shaft.Note: Some older models have a key in the shaft, newer models do not have a key.
Use Tooling (A) and Tooling (B) to remove drive gear (2) . If necessary, remove key (3) from the shaft.
Remove bolts (8) . Use Tooling (B) to remove body (7) from body (9) .
Illustration 2 g01051941
Remove seal (10) from body (7) .
Use Tooling (G) to remove retaining ring (11) .
Use Tooling (C) to remove bearing (12) .
Illustration 3 g01051950
Remove bolts (17) . Remove cover (16) .
Use Tooling (F) to remove retaining ring (18) from the shaft.
Use Tooling (G) to remove retaining ring (19) from bearing housing (13) .
Remove bolts (14) . Remove bolts (22) . Use Tooling (D) to remove body (21) from body (9) .
Remove Tooling (D) . Remove bearing housing (13) and shims (15) from body (21) .
Use Tooling (C) to remove bearing (20) from bearing housing (13) .
Illustration 4 g01051994
Remove sleeve (23) .
Remove seal assembly (24) .
Remove sleeve (35) .
Remove seal assembly (34) .
Remove spacer (33) .
Remove O-ring seal (26) and O-ring seal (27) from body (9) .
Remove port plate (32) .
Remove impeller (25) from shaft (28) .Note: Impeller (25) has right-hand threads.
Remove shaft (28) and impeller (30) from body (9) .
Place shaft (28) into a soft jawed vise. Use Tooling (E) in order to remove impeller (30) .Note: Impeller (30) has left-hand threads.
Remove ring (31) from body (9) .
Remove plate (29) from body (9) .

Cat SIS web machinery list:

Caterpillar parts catalog
315C & 315C L Excavators CFB00001-UP (MACHINE) POWERED BY 3046 Engine
320C U & 320C LU Excavators MAC00001-UP (MACHINE) POWERED BY 3066 Engine
315C & 315C L Excavators AKE00001-UP (MACHINE) POWERED BY 3046 Engine
320C & 320C L Excavators RAW00001-UP (MACHINE) POWERED BY 3066 Engine
323D & 323D L Excavator SDC00001-UP (MACHINE) POWERED BY 3066 Engine
323D LN & 323D S Excavators CYD00001-UP (MACHINE) POWERED BY 3066 Engine
323D L Excavator JLG00001-UP (MACHINE) POWERED BY C6.4 Engine
320D FM Forest Swing Machine CYZ00001-UP (MACHINE) POWERED BY C6.4 Engine
320D RR FM Forest Swing Machine SRT00001-UP (MACHINE) POWERED BY 3066 Engine
323D L Excavator PBM00001-UP (MACHINE) POWERED BY 3066 Engine
315D L Excavator CJN00001-UP (MACHINE) POWERED BY C4.2 Engine
319D L & 319D LN Excavators EAW00001-UP (MACHINE) POWERED BY C4.2 Engine
319D Excavators BZH00001-UP (MACHINE) POWERED BY C4.2 Engine
320D & 320D L Excavators FAL00001-UP (MACHINE) POWERED BY C6.4 Engine
315D L Excavator NCM00001-UP (MACHINE) POWERED BY C4.2 Engine
323D LN & 323D S Excavators RAC00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators JGZ00001-UP (MACHINE) POWERED BY 3066 Engine
323D L Excavator BYM00001-UP (MACHINE) POWERED BY C6.4 Engine
320D & 320D L Excavators A6F00001-UP (MACHINE) POWERED BY C6.4 Engine
320D FM Forest Swing Machine BWW00001-UP (MACHINE) POWERED BY C6.4 Engine
315D L Excavator KBD00001-UP (MACHINE) POWERED BY C4.2 Engine
323D L Excavator NDE00001-UP (MACHINE) POWERED BY C6.4 Engine
320D Excavator BZP00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator LFL00001-UP (MACHINE) POWERED BY C6.4 Engine
323D L Excavator YSD00001-UP (MACHINE) POWERED BY C6.4 Engine
323D & 323D L Excavators WGC00001-UP (MACHINE) POWERED BY C6.4 Engine
315D L Excavator BZN00001-UP (MACHINE) POWERED BY C4.2 Engine
315D L Excavator JGS00001-UP (MACHINE) POWERED BY C4.2 Engine
319D L & 319D LN Excavators AYF00001-UP (MACHINE) POWERED BY C4.2 Engine
319D L & 319D LN Excavators KFM00001-UP (MACHINE) POWERED BY C4.2 Engine
323D, 323D L & 323D LN Excavators CWG00001-UP (MACHINE) POWERED BY C6.4 Engine
315D L Excavator TLE00001-UP (MACHINE) POWERED BY C4.2 Engine
319D L & 319D LN Excavators WBJ00001-UP (MACHINE) POWERED BY C4.2 Engine
323D SA Excavator NES00001-UP (MACHINE) POWERED BY C6.4 Engine
315D L Excavator JHA00001-UP (MACHINE) POWERED BY C4.2 Engine
316E L Excavator DZW00001-UP (MACHINE) POWERED BY C4.4 Engine
316E L Excavator YZZ00001-UP (MACHINE) POWERED BY C4.4 Engine
320D Excavator KHN00001-UP (MACHINE) POWERED BY C6.4 Engine
319D L Excavator KRM00001-UP (MACHINE) POWERED BY C4.2 Engine
316E L Excavator WZY00001-UP (MACHINE) POWERED BY C4.4 Engine
318D L Excavator ZKJ00001-UP (MACHINE) POWERED BY C4.2 Engine
318E L Excavator DZF00001-UP (MACHINE) POWERED BY C4.4 Engine
318D2 L Excavator WGR00001-UP (MACHINE) POWERED BY 3054C Engine
320D2 Excavator DFM00001-UP (MACHINE) POWERED BY C7.1 Engine
320D2 & 320D2 L Excavators KHR00001-UP (MACHINE) POWERED BY C7.1 Engine
320D2 Excavator XBB00001-UP (MACHINE) POWERED BY C7.1 Engine
320D2 Excavator MDJ00001-UP (MACHINE) POWERED BY C7.1 Engine


Parts ring Caterpillar catalog:

2344574 RING
320C, 320D, 320D L, 320D2, 320D2 L, 320E, 320E L, 320E LN, 325C, 325D, 325D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329E LN
1948359 RING-SEAL
320C, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 321D LCR, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 3...
2144501 RING-SEAL
320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D L, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E L, 322C, 323D L, 323D2 L, 324D, 324D L, 324E, 324E L, 324E LN, 326D L
1261870 RING-SEAL
320D, 320E, 320E L, 320E RR, 321B, 321C, 321D LCR, 322B, 322C, 325C L
2478791 RING-SEAL
1390, 2590, 320C, 320D, 320D FM, 320D2, 320D2 L, 322C, 323D L, 323D LN, 323D SA, 324D, 324D FM, 324D L, 324D LN, 325C, 325D, 325D FM, 325D L, 329D L, 329D LN, 329E, 330D MH, 521B, 522B, 541, 541 2, 55...
2344483 RING
323D L, 323D LN, 324D, 324D FM, 324D L, 324D LN, 324E L, 324E LN, 325D, 325D FM, 325D L, 329D L, 329D LN, 329E L, 329E LN, 330D L
2344485 RING
323D L, 323D LN, 324D, 324D FM, 324D L, 324D LN, 324E L, 324E LN, 325D, 325D FM, 325D L, 329D L, 329D LN, 329E L, 329E LN, 330D L
2344487 RING-BACKUP
323D L, 323D LN, 324D, 324D FM, 324D L, 324D LN, 324E L, 324E LN, 325D, 325D FM, 325D L, 329D L, 329D LN, 329E L, 329E LN, 330D L
2344581 RING-BACKUP
320D, 320D FM, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D FM, 324D L, 324E, 324E L, 324E LN, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329...
2344584 RING-BACKUP
320D, 320D FM, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D FM, 324D L, 324E, 324E L, 324E LN, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329...
2344585 RING
320D, 320D FM, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D FM, 324D L, 324E, 324E L, 324E LN, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329...
2344586 RING
320D, 320D FM, 320D L, 320D2, 320D2 L, 320E LN, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 324D FM, 324D L, 324E, 324E L, 324E LN, 325D, 325D L, 326D L, 328D LCR, 329D, 329D L, 329E, 329E L, 329...
2667859 RING-SEAL
315C, 315D L, 316E L, 318D L, 318D2 L, 318E L
1347179 RING
311D LRR, 311F LRR, 312C L, 312D, 312E, 312E L, 314C, 314D CR, 314D LCR, 314E CR, 320E, 320E LN, 324E, 324E LN, 329E, 329E LN
1076541 RING-RETAINING
312C, 312C L, 315C, 318C, 319C, 320 L, 320B, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 3...
1038253 RING
312C L, 318C, 319C, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR,...
1038252 RING
312C L, 318C, 319C, 320B, 320B FM LL, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 GC, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR,...
2324114 RING
312C, 312C L, 315C, 318C, 319C, 319D, 319D L, 319D LN, 320C, 320D, 320D L, 320D LN, 320D LRR, 320D RR, 320D2, 320D2 L, 320E LN, 321C, 321D LCR, 322C, 323D L, 323D LN, 323D SA, 323D2 L, 323E L, 324D, 3...
1838452 RING-RETAINING
583T, 587R, 587T, 621G, 627G, 631G, 637G, 963D, 973C, D7E, D7E LGP, D8R, D8R II, D8T, HA871, M315C, M315D, M316C, M316D, M318C, M318C MH, M318D, M318D MH, M322D MH, PL83, PL87, TK371, TK381
1007740 RING-RETAINING
311B, 312E, 312E L, 316E L, 318E L, 320E, 320E L, 320E LN, 323E L, 324E, 324E L, 324E LN, 325B, 329E, 329E L, 329E LN, 350, 365B, 365B L, 375, 385B, 901C, 902C, 903C, 904B, 904H, D3K XL, D4K XL, D5K L...
1158523 RING-RETAINING
307, M313C, M315C, M316C, M318C, M318C MH, M322C
7J6288 RING-BACKUP
12E, 613, 613C, 613C II, 613G, D25D, D40D, M313C, M315C, M316C, M318C, M318C MH, M322C
1976792 RING
M313C, M315C, M316C, M318C, M318C MH, M322C
1682629 RING
315C, 315D L, 316E L, 320C, 320D, 320E, 320E L, 320E LRR, 320E RR, 321C, 322C, 330D L
Back to top
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.