Bronze 379-8856 Engine Overhaul Kits for 3406 Machine Engines{1000} Caterpillar

Bronze 379-8856 Engine Overhaul Kits for 3406 Machine Engines{1000}

Usage:

D8N 1XJ

Track-Type Tractor:: D8N (S/N: 9TC1-UP; 1XJ1-UP; 5TJ1-UP; 7TK1-UP); D8R (S/N: 7XM1-UP; 9EM1-UP)

Introduction

The purpose of this Special Instruction is to have a one safe source for referring to 3406 rebuild kits. Use the following tables for your engine arrangement to identify your rebuild kit parts list.

Bronze Overhaul Kits by Arrangement

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Table 1
Arrangement	Bronze Kit	Machine Model	Engine Serial Number Prefix
105-9697	379-8856	3406C(D8R)	41Z
4W-9497	379-8856	3406(D8N)	11N
9Y-5555	379-8856	3406(D8N)	11N
222-5432	379-8856	3406C(D8R)	41Z

Exhaust Sleeves

Only use the 194-8124 Sleeves that are found in the package that is labeled "BB" if your engine is listed in the table below. Use of the sleeves is not optional. If the sleeves are used and not needed, engine performance could be compromised. Also, if the sleeves are not used and should be used engine performance could be compromised.

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Table 2
Arrangement	Bronze Kit	Machine Model	Engine Serial Number Prefix
105-9697	379-8856	3406C(D8R)	41Z

Legend

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Table 3
Legend
Note	Component Description
B	Head Gasket and O-Rings
C	Water Temperature Regulator and Gasket
D	Turbocharger Gaskets and O-Rings
F	Fuel Lines and O-Rings
H	Front Structure
J	Rear Structure
K	Single Fuel Injector
M	Piston Gp
N	Cylinder Block Gp
O	Oil Pan Gp
P	Filter Gp
R	Oil Cooler Gp
S	Water Pump Gp
T	Water Lines Gp
U	Oil Lines Gp
W	Aftercooler and Air Lines Gp
BB	Exhaust Sleeve

379-8856 Engine Overhaul Kit By Engine Arrangement

9Y-5555 Engine Ar

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Table 4
Bronze 379-8856 Engine Overhaul Kit 3406(D8N) Engine Serial Number 11N Arrangement 9Y-5555 Engine Ar
Quantity	Part Number	Part Name	Note
11	106-1792	Taperlock Stud	B
11	108-3612	Spacer	B
6	129-9452	Exhaust Manifold Gasket	B
1	214-7568	O-Ring Seal	B
4	2N-2766	Locknut	B
1	2S-3770	Spacer	B
12	305-6843	Guide Spring	B
24	3E-6772	Seal	B
2	3S-5496	O-Ring Seal	B
4	4N-0699	Gasket	B
6	4N-7253	Chamber Gasket	B
1	4S-6137	Taperlock Stud	B
3	5P-5678	Seal	B
2	5S-1188	O-Ring Seal	B
1	6I-3066	Cylinder Head Gasket	B
1	6I-4024	Plate Gasket	B
1	6V-3831	O-Ring Seal	B
6	7L-4774	O-Ring Seal	B
1	8C-5196	O-Ring Seal	B
12	5m-2894	Hard Washer	B
4	0L-1022	Cup Plug	B
1	248-5513	Temperature Regulator	C
1	3S-9643	Lip Type Seal	C
1	4N-1156	Regulator Cover Gasket	C
2	7C-0307	Gasket	C
1	114-2687	O-Ring Seal	D
1	1S-4295	Gasket	D
1	1S-4810	Oil Drain Gasket	D
1	1S-6595	Oil Supply Gasket	D
1	1W-1898	Gasket	D
4	2N-2765	High Temperature Bolt	D
12	2N-2766	Locknut	D
6	117-1385	O-Ring Seal	F
2	1P-0436	Gasket	F
5	238-5080	O-Ring Seal	F
2	238-5081	O-Ring Seal	F
1	271-2489	Washer Seal	F
1	4M-0189	O-Ring Seal	F
1	4W-4616	Quad Ring Seal	F
2	5P-5846	O-Ring Seal	F
1	6V-3319	O-Ring Seal	F
1	7W-4487	Special Washer	F
6	8H-9204	Felt Washer	F
6	8L-2779	O-Ring Seal	F
1	9L-9098	Carbon Stop Seal	F
1	9X-7715	Quad Ring Seal	F
1	131-7123	Bushing	H
1	142-5867	Crankshaft Seal	H
1	147-0182	O-Ring Seal	H
1	166-9142	Gasket	H
1	166-9146	Gasket	H
1	2W-0459	Gasket	H
1	4N-2695	Cover Gasket	H
1	5P-4889	O-Ring Seal	H
2	6B-2250	Gasket	H
8	5P-4255	Locking Bolt	H
1	156-5198	O-Ring Seal	H
5	3G-2292	Locking Bolt	H
1	142-5868	Crankshaft Seal	J
1	155-5619	Gasket	J
4	214-7566	O-Ring Seal	J
1	214-7568	O-Ring Seal	J
1	234-8937	Integral Seal	J
1	2A-1162	Gasket	J
1	3F-1547	O-Ring Seal	J
1	4M-6480	Gasket	J
1	4N-0933	Gasket	J
1	5P-8286	O-Ring Seal	J
1	6V-5141	O-Ring Seal	J
2	8M-9315	Bushing	J
1	114-3362	O-Ring Seal	K
6	328-5573	Connecting Rod Bearing	M
1	118-5068	O-Ring Seal	N
1	214-7566	O-Ring Seal	N
2	214-7568	O-Ring Seal	N
1	238-5083	O-Ring Seal	N
1	238-5084	O-Ring Seal	N
2	250-0466	O-Ring Seal	N
2	3S-5496	O-Ring Seal	N
6	4N-0685	Bushing	N
1	4N-6658	Bushing	N
1	7W-6081	Gasket	N
1	8T-6757	Pipe Plug	N
3	165-6170	Plug	O
2	353-5065	Oil Pan Gasket	O
1	4N-7266	Oil Pan Gasket	O
1	6V-3830	O-Ring Seal	O
1	7W-0845	Gasket	P
1	1r-1808	Engine Oil Filter	P
1	1R-0749	Fuel Filter	P
2	2P-4305	Gasket	P
1	109-0077	O-Ring Seal	R
2	113-5304	O-Ring Seal	R
1	4W-0435	Quad Ring Seal	R
1	109-0076	O-Ring Seal	S
1	109-0077	O-Ring Seal	S
1	122-3772	O-Ring Seal	S
1	125-0434	Integral Seal	S
1	9M-3786	O-Ring Seal	S
1	109-0077	O-Ring Seal	T
2	6L-9589	Gasket	T
3	2N-3350	O-Ring Seal	U
2	2P-3760	Gasket	U
1	3E-6790	O-Ring Seal	U
4	5P-8068	O-Ring Seal	U
2	8C-5230	O-Ring Seal	U
6	2N-8204	Gasket	W
4	6V-9769	O-Ring Seal	W

222-5432 Engine Ar

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Table 5
Bronze 379-8856 Engine Overhaul Kit 3406C(D8R) Engine Serial Number 41Z Arrangement 222-5432 Engine Ar
Quantity	Part Number	Part Name	Note
1	8C-5196	O-Ring Seal	B
1	6V-3831	O-Ring Seal	B
6	7L-4774	O-Ring Seal	B
1	6I-3066	Cylinder Head Gasket	B
1	6I-4024	Plate Gasket	B
2	5S-1188	O-Ring Seal	B
3	5P-5678	Seal	B
12	5M-2894	Hard Washer	B
1	4S-6137	Taperlock Stud	B
6	4N-7253	Chamber Gasket	B
24	3E-6772	Seal	B
12	305-6843	Guide Spring	B
1	2S-3770	Spacer	B
12	2N-2766	Locknut	B
6	129-9452	Exhaust Manifold Gasket	B
4	4N-0699	Gasket	B
11	108-3612	Spacer	B
11	106-1792	Taperlock Stud	B
4	0L-1022	Cup Plug	B
6	194-8124	Sleeve	BB
1	3S-9643	Lip Type Seal	C
1	248-5513	Temperature Regulator	C
2	7C-0307	Gasket	C
1	4N-1156	Regulator Cover Gasket	C
1	114-2687	O-Ring Seal	D
1	1S-4295	Gasket	D
1	1S-4810	Oil Drain Gasket	D
1	1S-6595	Oil Supply Gasket	D
1	1W-1898	Gasket	D
4	2N-2765	High Temperature Bolt	D
4	2N-2766	Locknut	D
1	061-7539	O-Ring Seal	F
6	117-1385	O-Ring Seal	F
2	1P-0436	Gasket	F
1	214-7568	O-Ring Seal	F
6	7W-4487	Special Washer	F
1	214-7566	O-Ring Seal	F
5	238-5080	O-Ring Seal	F
1	238-5081	O-Ring Seal	F
1	4W-2754	Quad Ring Seal	F
2	5P-5846	O-Ring Seal	F
1	6V-3319	O-Ring Seal	F
6	8H-9204	Felt Washer	F
2	8M-9315	Bushing	F
6	8L-2779	O-Ring Seal	F
1	9X-7715	Quad Ring Seal	F
1	131-7123	Bushing	H
5	3G-2292	Locking Bolt	H
1	6B-2250	Gasket	H
1	2W-0459	Gasket	H
1	142-5867	Crankshaft Seal	H
1	166-9142	Gasket	H
1	166-9146	Gasket	H
1	4N-2695	Cover Gasket	H
8	5p-4255	Locking Bolt	H
1	147-0182	O-Ring Seal	H
1	5P-4889	O-Ring Seal	H
1	4M-0189	O-Ring Seal	J
1	142-5868	Crankshaft Seal	J
1	234-8937	Integral Seal	J
1	155-5619	Gasket	J
1	3F-1547	O-Ring Seal	J
1	6V-5141	O-Ring Seal	J
1	2A-1162	Gasket	J
1	5P-8286	O-Ring Seal	J
1	4M-6480	Gasket	J
6	114-3362	O-Ring Seal	K
6	271-2489	Washer Seal	K
6	9L-9098	Carbon Stop Seal	K
6	328-5573	Connecting Rod Bearing	M
3	165-6170	Plug	N
1	238-5083	O-Ring Seal	N
2	250-0466	O-Ring Seal	N
4	3S-5496	O-Ring Seal	N
1	7W-6081	Gasket	N
5	7W-6534	Pipe Plug	N
6	7X-7732	Pipe Plug	N
3	8T-6757	Pipe Plug	N
6	4N-0685	Bushing	N
1	4N-6658	Bushing	N
1	118-5068	O-Ring Seal	N
1	6V-3830	O-Ring Seal	O
1	7W-0845	Gasket	O
1	4N-7266	Oil Pan Gasket	O
2	353-5065	Oil Pan Gasket	O
2	2P-4305	Gasket	P
1	1r-1808	Engine Oil Filter	P
1	214-7568	O-Ring Seal	P
1	1R-0749	Fuel Filter	P
1	214-7566	O-Ring Seal	P
2	113-5304	O-Ring Seal	R
1	109-0076	O-Ring Seal	S
2	6L-9589	Gasket	T
2	214-7566	O-Ring Seal	U
1	214-7567	O-Ring Seal	U
3	2N-3350	O-Ring Seal	U
4	5P-8068	O-Ring Seal	U
2	2P-3760	Gasket	U
2	8C-5230	O-Ring Seal	U
1	3E-6790	O-Ring Seal	U
2	153-5484	Gasket	W
1	4N-0933	Gasket	W
4	6V-9769	O-Ring Seal	W
1	7W-0688	Gasket	W
6	2N-8204	Gasket	W

4W-9497 Engine Ar

Note: This bronze engine overhaul kit is for engines with wide journal connecting rods only S/N:11N00479-UP. For earlier engine serial numbers, contact your local Cat dealer.

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Table 6
Bronze 379-8856 Engine Overhaul Kit 3406(D8N) Engine Serial Number 11N Arrangement 4W-9497 Engine Ar
Quantity	Part Number	Part Name	Note
11	106-1792	Taperlock Stud	B
11	108-3612	Spacer	B
6	129-9452	Exhaust Manifold Gasket	B
1	214-7568	O-Ring Seal	B
12	2N-2766	Locknut	B
1	2S-3770	Spacer	B
12	305-6843	Guide Spring	B
24	3E-6772	Seal	B
2	3S-5496	O-Ring Seal	B
2	4L-8337	O-Ring Seal	B
4	4N-0699	Gasket	B
6	4N-7253	Chamber Gasket	B
1	4S-6137	Taperlock Stud	B
3	5P-5678	Seal	B
2	5S-1188	O-Ring Seal	B
1	6I-3066	Cylinder Head Gasket	B
1	6I-4024	Plate Gasket	B
1	6V-3831	O-Ring Seal	B
6	7L-4774	O-Ring Seal	B
1	8C-5196	O-Ring Seal	B
12	5M-2894	Hard Washer	B
4	0L-1022	Cup Plug	B
10	371-8115	Hose	B
2	9M-2904	Hose Clamp	B
1	248-5513	Temperature Regulator	C
3	238-5080	O-Ring Seal	C
1	4N-1156	Regulator Cover Gasket	C
2	7C-0307	Gasket	C
1	114-2687	O-Ring Seal	D
1	1S-4810	Oil Drain Gasket	D
1	1S-6595	Oil Supply Gasket	D
1	1W-1898	Gasket	D
4	2N-2765	High Temperature Bolt	D
4	2N-2766	Locknut	D
2	4L-8337	O-Ring Seal	D
1	7M-7273	Gasket	D
1	061-7539	O-Ring Seal	F
6	117-1385	O-Ring Seal	F
2	1P-0436	Gasket	F
2	238-5081	O-Ring Seal	F
1	271-2489	Washer Seal	F
1	4J-7533	O-Ring Seal	F
1	4M-0189	O-Ring Seal	F
1	4W-4616	Quad Ring Seal	F
2	5P-5846	O-Ring Seal	F
1	6V-3319	O-Ring Seal	F
1	7W-4487	Special Washer	F
6	8H-9204	Felt Washer	F
6	8L-2779	O-Ring Seal	F
1	9L-9098	Carbon Stop Seal	F
1	9X-7715	Quad Ring Seal	F
1	131-7123	Bushing	H
1	142-5867	Crankshaft Seal	H
1	147-0182	O-Ring Seal	H
1	166-9142	Gasket	H
1	166-9146	Gasket	H
1	2W-0459	Gasket	H
1	4N-2695	Cover Gasket	H
1	5P-4889	O-Ring Seal	H
2	6B-2250	Gasket	H
8	5p-4255	Locking Bolt	H
5	3G-2292	Locking Bolt	H
1	142-5868	Crankshaft Seal	J
1	155-5619	Gasket	J
5	214-7568	O-Ring Seal	J
1	4M-6480	Gasket	J
1	4N-0933	Gasket	J
2	4N-1230	O-Ring Seal	J
2	9X-7371	O-Ring Seal	J
1	114-3362	O-Ring Seal	K
6	328-5573	Connecting Rod Bearing	M
2	214-7568	O-Ring Seal	N
1	238-5083	O-Ring Seal	N
1	238-5084	O-Ring Seal	N
2	250-0466	O-Ring Seal	N
2	3S-5496	O-Ring Seal	N
6	4N-0685	Bushing	N
1	4N-6658	Bushing	N
1	7W-6081	Gasket	N
5	7W-6534	Pipe Plug	N
1	118-5068	O-Ring Seal	N
3	8T-6757	Pipe Plug	N
3	165-6170	Plug	O
2	353-5065	Oil Pan Gasket	O
1	4N-7266	Oil Pan Gasket	O
1	6V-3830	O-Ring Seal	O
1	7W-0845	Gasket	O
1	1R-1808	Engine Oil Filter	P
1	1R-0749	Fuel Filter	P
1	214-7566	O-Ring Seal	P
1	2P-4305	Gasket	P
1	214-7566	O-Ring Seal	P
2	113-5304	O-Ring Seal	R
1	4W-0435	Quad Ring Seal	R
2	109-0076	O-Ring Seal	S
1	125-0434	Integral Seal	S
1	214-7566	O-Ring Seal	U
1	214-7567	O-Ring Seal	U
3	2N-3350	O-Ring Seal	U
2	2P-3760	Gasket	U
4	5P-8068	O-Ring Seal	U
2	8C-5230	O-Ring Seal	U
1	214-7566	O-Ring Seal	U
1	3E-6790	O-Ring Seal	U
1	2N-8204	Gasket	W
6	109-0078	O-Ring Seal	W

105-9697 Engine Ar

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Table 7
Bronze 379-8856 Engine Overhaul Kit 3406C(D8R) Engine Serial Number 41Z Arrangement 105-9697 Engine Ar
Quantity	Part Number	Part Name	Note
11	106-1792	Taperlock Stud	B
11	108-3612	Spacer	B
6	129-9452	Exhaust Manifold Gasket	B
4	2N-2766	Locknut	B
2	2S-3770	Spacer	B
1	305-6843	Guide Spring	B
24	3E-6772	Seal	B
2	3S-5496	O-Ring Seal	B
6	4N-0699	Gasket	B
1	4N-7253	Chamber Gasket	B
1	4S-6137	Taperlock Stud	B
1	5P-5678	Seal	B
1	5S-1188	O-Ring Seal	B
1	6I-3066	Cylinder Head Gasket	B
1	6I-4024	Plate Gasket	B
1	6V-3831	O-Ring Seal	B
1	7L-4774	O-Ring Seal	B
1	8C-5196	O-Ring Seal	B
5	5m-2894	Hard Washer	B
5	0L-1022	Cup Plug	B
6	194-8124	Sleeve	BB
1	248-5513	Temperature Regulator	C
4	3S-9643	Lip Type Seal	C
1	4N-1156	Regulator Cover Gasket	C
4	7C-0307	Gasket	C
1	114-2687	O-Ring Seal	D
1	1S-4295	Gasket	D
1	1S-4810	Oil Drain Gasket	D
1	1S-6595	Oil Supply Gasket	D
1	1W-1898	Gasket	D
1	2N-2765	High Temperature Bolt	D
12	2N-2766	Locknut	D
1	061-7539	O-Ring Seal	F
6	117-1385	O-Ring Seal	F
2	1P-0436	Gasket	F
5	238-5080	O-Ring Seal	F
1	238-5081	O-Ring Seal	F
2	271-2489	Washer Seal	F
1	4M-0189	O-Ring Seal	F
1	4W-2754	Quad Ring Seal	F
3	5P-5846	O-Ring Seal	F
2	6V-3319	O-Ring Seal	F
1	7W-4487	Special Washer	F
2	8H-9204	Felt Washer	F
6	8L-2779	O-Ring Seal	F
2	9L-9098	Carbon Stop Seal	F
6	9X-7715	Quad Ring Seal	F
1	131-7123	Bushing	H
1	142-5867	Crankshaft Seal	H
1	147-0182	O-Ring Seal	H
1	166-9142	Gasket	H
1	166-9146	Gasket	H
1	2W-0459	Gasket	H
1	4N-2695	Cover Gasket	H
1	5P-4889	O-Ring Seal	H
2	6B-2250	Gasket	H
1	5p-4255	Locking Bolt	H
8	3g-2292	Locking Bolt	H
1	142-5868	Crankshaft Seal	J
1	155-5619	Gasket	J
4	214-7566	O-Ring Seal	J
1	214-7568	O-Ring Seal	J
1	234-8937	Integral Seal	J
6	2A-1162	Gasket	J
1	3F-1547	O-Ring Seal	J
1	4M-6480	Gasket	J
4	4N-0933	Gasket	J
4	5P-8286	O-Ring Seal	J
1	6V-5141	O-Ring Seal	J
6	8M-9315	Bushing	J
6	114-3362	O-Ring Seal	K
6	328-5573	Connecting Rod Bearing	M
1	214-7566	O-Ring Seal	N
2	214-7568	O-Ring Seal	N
1	238-5083	O-Ring Seal	N
1	238-5084	O-Ring Seal	N
1	250-0466	O-Ring Seal	N
2	3S-5496	O-Ring Seal	N
1	4N-0685	Bushing	N
1	4N-6658	Bushing	N
6	7W-6081	Gasket	N
1	9x-7378	O-Ring Seal	N
3	8T-6757	Pipe Plug	N
1	7w-6534	Pipe Plug	N
2	7x-7732	Pipe Plug	N
1	118-5068	O-Ring Seal	N
3	165-6170	Plug	O
12	353-5065	Oil Pan Gasket	O
6	4N-7266	Oil Pan Gasket	O
1	6V-3830	O-Ring Seal	O
1	7W-0845	Gasket	O
1	1R-1808	Engine Oil Filter	P
1	1R-0749	Fuel Filter	P
2	2P-4305	Gasket	P
1	109-0077	O-Ring Seal	R
2	113-5304	O-Ring Seal	R
1	109-0076	O-Ring Seal	S
1	109-0077	O-Ring Seal	S
1	109-0077	O-Ring Seal	T
1	6L-9589	Gasket	T
2	214-7567	O-Ring Seal	U
4	2N-3350	O-Ring Seal	U
6	2P-3760	Gasket	U
1	3E-6790	O-Ring Seal	U
2	5P-8068	O-Ring Seal	U
1	8C-5230	O-Ring Seal	U
2	153-5484	Gasket	W
3	2N-8204	Gasket	W
1	6V-9769	O-Ring Seal	W
6	7W-0688	Gasket	W
6	109-0078	O-Ring Seal	W