8C3091 SEAL-O-RING Caterpillar parts
325C, 550, 570, 580, 580B, 918F, 924F, 938G, 950F, 950G, 962G, CB-434, D5M, D6N
Rating:
Alternative (cross code) number:
CA8C3091
8C-3091
8C3091
CA8C3091
8C-3091
8C3091
Weight: 0.03 pounds 0 kg.
Information:
CROSS SECTION DIAMETER
5.33
mm
DASH SIZE
362
ID
158.12
mm
MATERIAL
Silicone (VMQ) Rubber - 70 Duro
OD
0
mm
EXCAVATOR, WHEEL LOADER,
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$13.56
02 Apr 2022
US: Florida-Parts-Z
8C3091 - Seal-O-Ring for Caterpillar (CAT)
FIRST PRICE PARTS
FIRST PRICE PARTS
$8.35
26 Nov 2018
CATERPILLAR AFTERMARKET: CATERPILLAR AFT
CATERPILLAR SEAL O RING 8C3091 NEW
$6.99
27 Jun 2022
0.1102[0.05] Pounds
US: ProperBuy
8C3091 Seal O Ring Fits Caterpillar
TCP Warranty
TCP Warranty
Number on catalog scheme:
6
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Compatible equipment models: 8C3091:
Information:
Disassembly Procedure
Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove". Inlet and Exhaust Valves
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
B 8S-2263 Spring Tester 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00905560
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Illustration 2 g00618922
Use Tooling (A) to compress valve spring (1).
Remove retainer lock (2).
Release the tension on Tooling (A). Remove Tooling (A).
Remove valve rotator (3), outer spring (5), inner spring (4), and seal (6). Note: If the valves will be reused, mark the valves for identification upon assembly.
Remove valve (7) from the cylinder head.
Use Tooling (B) to measure the force of the valve springs. Refer to Specifications for the correct spring force.
Repeat Steps 1 through 6 for the remaining valves. Bridge Dowels
Table 2
Required Tools
Tool Part Number Part Description Qty
C 5P-0944 Dowel Puller Group 1
5P-0942 Dowel Extractor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01051069
If the bridge dowels will be replaced, use Tooling (C) to remove bridge dowel (8) from the cylinder head. Inlet and Exhaust Valve Seat Inserts
Table 3
Required Tools
Tool Part Number Part Description Qty
D 166-7441 Valve Seat Extractor Tool 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Use Tooling (D) to remove the valve seat inserts from the cylinder head.
Thoroughly clean valve seat bores in the cylinder head. Inlet and Exhaust Valve Guides
Table 4
Required Tools
Tool Part Number Part Description Qty
E 7M-3975 Valve Guide Driver 1
5P-1729 Valve Guide Bushing 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Use Tooling (E) and a hammer to remove the valve guides from the cylinder head. Valve Lifters
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: The valve lifters may also be removed with the cylinder head on the engine. Remove the camshaft and use the following steps in order to remove the valve lifters with the cylinder head on the engine.
Illustration 4 g01051072
Illustration 5 g01051073
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Pull valve lifter (9) out of the cylinder head.
Remove guide spring (10) from the valve lifter.
Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove". Inlet and Exhaust Valves
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
B 8S-2263 Spring Tester 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00905560
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Illustration 2 g00618922
Use Tooling (A) to compress valve spring (1).
Remove retainer lock (2).
Release the tension on Tooling (A). Remove Tooling (A).
Remove valve rotator (3), outer spring (5), inner spring (4), and seal (6). Note: If the valves will be reused, mark the valves for identification upon assembly.
Remove valve (7) from the cylinder head.
Use Tooling (B) to measure the force of the valve springs. Refer to Specifications for the correct spring force.
Repeat Steps 1 through 6 for the remaining valves. Bridge Dowels
Table 2
Required Tools
Tool Part Number Part Description Qty
C 5P-0944 Dowel Puller Group 1
5P-0942 Dowel Extractor 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g01051069
If the bridge dowels will be replaced, use Tooling (C) to remove bridge dowel (8) from the cylinder head. Inlet and Exhaust Valve Seat Inserts
Table 3
Required Tools
Tool Part Number Part Description Qty
D 166-7441 Valve Seat Extractor Tool 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Use Tooling (D) to remove the valve seat inserts from the cylinder head.
Thoroughly clean valve seat bores in the cylinder head. Inlet and Exhaust Valve Guides
Table 4
Required Tools
Tool Part Number Part Description Qty
E 7M-3975 Valve Guide Driver 1
5P-1729 Valve Guide Bushing 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Use Tooling (E) and a hammer to remove the valve guides from the cylinder head. Valve Lifters
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: The valve lifters may also be removed with the cylinder head on the engine. Remove the camshaft and use the following steps in order to remove the valve lifters with the cylinder head on the engine.
Illustration 4 g01051072
Illustration 5 g01051073
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Pull valve lifter (9) out of the cylinder head.
Remove guide spring (10) from the valve lifter.
Cat SIS web machinery list:
Parts seal Caterpillar catalog:
320C, 320D, 320D L, 320D LN, 320D LRR, 320D2, 320D2 L, 322C, 323D L, 323D2 L, 324D, 324D L, 325C, 325D L, 329D, 329D L
320C, 320D, 321B, 321C, 321D LCR, 322C, 324D, 324D L, 325C, 325C L, 328D LCR, 330C L
320C, 320D, 320D L, 320E L, 325C, 325C L, 325D, 325D L, 328D LCR, 329D, 329D L, 330C L
1390, 2590, 325B L, 325C, 325C L, 325D L, 325D MH, 330B L, 330C L, 330D, 330D L, 336D, 345B, 345B II, 345B II MH, 385B, 541, 541 2, 551, 552, 552 2, M325B, TK1051, TK741, TK751, TK752, W330B, W345B II
322C, 322C FM, 324D FM, 324D FM LL, 325C, 325C FM, 325D FM, 325D FM LL, 325D L, 325D MH, 328D LCR, 329D L, 330C, 330C L, 330D, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336...
322B, 324D, 324D L, 325B, 325C, 325D L, 326D L, 329D, 329D L, 330B, 330B L, 330C L, 330D, 330D L, 336D, 336D L, 336D2
325B, 325C, 325C L, 325D, 325D L, 328D LCR, 329D, 329D L
325B, 325C, 325C L, 325D, 325D L, 328D LCR, 329D, 329D L
325C, 325C L, 325D, 325D L, 328D LCR, 329D, 329D L
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
325C, 330C L, 330D L, 336D, 336D2, 340D L, 340D2 L, 345B II, 345C, 345D, 345D L, 349D, 349D L
5Y2317
SEAL SET
D8L
D8L
1290T, 1390, 2491, 2590, 312D, 325C, 325D FM, 325D FM LL, 328D LCR, 330B, 330B L, 330C, 330C FM, 330C L, 330C MH, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, ...
2059115
SEAL GP-DUO CONE
325C, 330B L, OEMS
325C, 330B L, OEMS
325C, 328D LCR, 330B L, 330C, 330C FM, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, OEMS
216, 216B, 216B3, 226B, 226B3, 228, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247, 247B, 247B3, 248, 252B, 252B3, 256C, 257B, 257B3, 257D, 259B3, 259D, 262C, 262C2, 262D, 267, 267B,...
216, 216B, 216B3, 226B, 226B3, 228, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247, 247B, 247B3, 248, 252B, 252B3, 256C, 257B, 257B3, 257D, 259B3, 259D, 262C, 262C2, 262D, 267, 267B,...
12G, 140G, 14G, 205B, 216, 216B, 216B3, 226B, 226B3, 228, 232B, 236, 236B, 236B3, 236D, 242B, 242B3, 242D, 246C, 246D, 247, 247B, 247B3, 248, 252B, 252B3, 256C, 257B, 257B3, 257D, 259B3, 259D, 262C, 2...
120H, 120H ES, 120H NA, 120K, 120K 2, 12H, 12K, 12M, 135H, 135H NA, 140G, 140K, 140K 2, 140M, 140M 2, 160K, 160M, 160M 2, 2290, 2390, 2391, 2491, 2590, 30/30, 3114, 3116, 3126, 3126B, 3126E, 320B, 322...
1090, 1190, 1190T, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 1290T, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 1390, 140G, 140H, 140H ES, 140H NA...
216, 228, 236, 236B, 247, 248, 267, 3306, 35, 416B, 416C, 416D, 416E, 420D, 420E, 422E, 424D, 426C, 428B, 428C, 428D, 430D, 430E, 432D, 432E, 434E, 436C, 438B, 438C, 438D, 442D, 442E, 444E, 446B, 45, ...