4N7870 MUFFLER AS Caterpillar parts
120G, 12G, 130G, 3304, 3306, 930
Rating:
Alternative (cross code) number:
CA4N7870
4N-7870
4N7870
CA4N7870
4N-7870
4N7870
Weight: 16 pounds 7 kg.
GEN SET ENGINE, WHEEL LOADER,
You can buy:
US$193.97
28 May 2025
FridayParts
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4N7870 Muffler fits Caterpillar 120G 130G 140G 14G 160G 12G 3304 930T Series II 930T 3306 930 3304B D4E D6D D6G D6C D7E - Replaces 1123249-112-3249
ZBOX 【DESIGNED TO REPLACE】 1123249 - 112-3249 - 112-3249-A - 1123249-A - 1270308 - 1270308-A - 247-2661 - 247-2661-A - 4N7870 - 4N-7870 - 4N-7870-A - 4N7870-A - 4N8464 - 4N-8464 - 4N-8464-A - 4N8464-A || 【FITMENT MODELS】 Fits Caterpillar 12G - 3304B - 3306 - 120G - 130G - 140G - 14G - 160G - 930 - D6C - D7E - 3304 - D4E - 930T SERIES II - 930T - D6D - D6G - D6GSR - D6FSR || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
ZBOX 【DESIGNED TO REPLACE】 1123249 - 112-3249 - 112-3249-A - 1123249-A - 1270308 - 1270308-A - 247-2661 - 247-2661-A - 4N7870 - 4N-7870 - 4N-7870-A - 4N7870-A - 4N8464 - 4N-8464 - 4N-8464-A - 4N8464-A || 【FITMENT MODELS】 Fits Caterpillar 12G - 3304B - 3306 - 120G - 130G - 140G - 14G - 160G - 930 - D6C - D7E - 3304 - D4E - 930T SERIES II - 930T - D6D - D6G - D6GSR - D6FSR || 【AMERICAN OWNED & OPERATED】Fully owned and operated within the United States, our business is dedicated to contributing to local economies, supporting American jobs, and fostering community growth. || 【QUALITY REPLACEMENT】Engineered for durability and performance, our parts meet or exceed OEM specifications. Ideal for construction and agriculture machinery, ensuring reliability and efficiency in tough working conditions. || 【EASY INSTALLATION】Our parts are designed for a straightforward fit, making maintenance quick and simple, which helps reduce downtime and keep your equipment running smoothly.
Replacement for fits 4N7870 1123249 Exhaust Muffler Fits CAT Fits Caterpillar 12G 120G-14G D6C D6
Jinzhirullx
Jinzhirullx
Number on catalog scheme:
1
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Compatible equipment models: 4N7870:
Information:
Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-9895 Crossblock 1
3H-0465 Push Puller Plate 2
8F-6123 Bolt 2
0S-1575 Bolt 4
- Washer (3/4 inch Copper) 4
B 8T-0455 Liner Projection Tool Group 1
C 2P-8260 Cylinder Liner Installer 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Install the spacer plate gasket and the spacer plate. Refer to Disassembly and Assembly, "Spacer Plate - Remove and Install". Note: Ensure that all surfaces are clean and dry when the spacer plate gasket is installed.
Clean the cylinder liner and the cylinder bore in the cylinder block.
Position the cylinder liner in the cylinder bore without the seals or the filler band.
Illustration 1 g00578873
Typical example
Use the following steps to check the cylinder liner projection:
Install four bolts (4) and the washers from Tool (A). Tighten the bolts evenly in four steps. Step 1 ... 14 N m (10 lb ft)Step 2 ... 35 N m (25 lb ft)Step 3 ... 70 N m (50 lb ft)Step 4 ... 95 N m (70 lb ft)
Install crossbar (2), plates (3), and bolts (1) from Tool (A). Ensure that crossbar (2) is in position at the center of the cylinder liner. Also ensure that the surface of the cylinder liner is clean. Tighten bolts (1) evenly in four steps. Step 1 ... 7 N m (5 lb ft)Step 2 ... 20 N m (15 lb ft)Step 3 ... 35 N m (25 lb ft)Step 4 ... 70 N m (50 lb ft)
Check the distance from the bottom of crossblock (2) to the top of the spacer plate. The distance at both ends of the crossbar must be equal.
Check the liner projection with Tool (B) at four locations on the cylinder liner. The cylinder liner projection must be 0.129 0.070 mm (0.0051 0.0028 inch). A distance of 0.05 mm (0.002 inch) must be the maximum difference between the measurements. Note: If the cylinder liner is turned in the cylinder block, there will be a difference in the liner projection.
Illustration 2 g00578874
If the liner projection is not 0.129 0.070 mm (0.0051 0.0028 inch), check the thickness of the following items: (5) Spacer plate ... 12.313 0.025 mm (0.4848 0.0010 inch) (6) Spacer plate gasket ... 0.208 0.025 mm (0.0082 0.0010 inch) (7) Cylinder liner flange ... 12.65 0.02 mm (0.498 0.001 inch)
Place an alignment mark on the cylinder liner and the cylinder block in order to install the cylinder liner in the same position.
Remove Tool (A), Tool (B), and the spacer plate. Also remove the cylinder liner.
Illustration 3 g00578875
Typical example
Apply liquid soap to seals (5), the grooves of the cylinder liner, and the cylinder block.
Install seals (5) on the cylinder liner.
Dip the filler band (6) in clean engine oil. Immediately install filler band (6) in the groove that is under the cylinder liner flange.
Illustration 4 g00578876
Typical example
Install the cylinder liner immediately after filler band (6) is installed on the cylinder liner. Ensure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-9895 Crossblock 1
3H-0465 Push Puller Plate 2
8F-6123 Bolt 2
0S-1575 Bolt 4
- Washer (3/4 inch Copper) 4
B 8T-0455 Liner Projection Tool Group 1
C 2P-8260 Cylinder Liner Installer 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Install the spacer plate gasket and the spacer plate. Refer to Disassembly and Assembly, "Spacer Plate - Remove and Install". Note: Ensure that all surfaces are clean and dry when the spacer plate gasket is installed.
Clean the cylinder liner and the cylinder bore in the cylinder block.
Position the cylinder liner in the cylinder bore without the seals or the filler band.
Illustration 1 g00578873
Typical example
Use the following steps to check the cylinder liner projection:
Install four bolts (4) and the washers from Tool (A). Tighten the bolts evenly in four steps. Step 1 ... 14 N m (10 lb ft)Step 2 ... 35 N m (25 lb ft)Step 3 ... 70 N m (50 lb ft)Step 4 ... 95 N m (70 lb ft)
Install crossbar (2), plates (3), and bolts (1) from Tool (A). Ensure that crossbar (2) is in position at the center of the cylinder liner. Also ensure that the surface of the cylinder liner is clean. Tighten bolts (1) evenly in four steps. Step 1 ... 7 N m (5 lb ft)Step 2 ... 20 N m (15 lb ft)Step 3 ... 35 N m (25 lb ft)Step 4 ... 70 N m (50 lb ft)
Check the distance from the bottom of crossblock (2) to the top of the spacer plate. The distance at both ends of the crossbar must be equal.
Check the liner projection with Tool (B) at four locations on the cylinder liner. The cylinder liner projection must be 0.129 0.070 mm (0.0051 0.0028 inch). A distance of 0.05 mm (0.002 inch) must be the maximum difference between the measurements. Note: If the cylinder liner is turned in the cylinder block, there will be a difference in the liner projection.
Illustration 2 g00578874
If the liner projection is not 0.129 0.070 mm (0.0051 0.0028 inch), check the thickness of the following items: (5) Spacer plate ... 12.313 0.025 mm (0.4848 0.0010 inch) (6) Spacer plate gasket ... 0.208 0.025 mm (0.0082 0.0010 inch) (7) Cylinder liner flange ... 12.65 0.02 mm (0.498 0.001 inch)
Place an alignment mark on the cylinder liner and the cylinder block in order to install the cylinder liner in the same position.
Remove Tool (A), Tool (B), and the spacer plate. Also remove the cylinder liner.
Illustration 3 g00578875
Typical example
Apply liquid soap to seals (5), the grooves of the cylinder liner, and the cylinder block.
Install seals (5) on the cylinder liner.
Dip the filler band (6) in clean engine oil. Immediately install filler band (6) in the groove that is under the cylinder liner flange.
Illustration 4 g00578876
Typical example
Install the cylinder liner immediately after filler band (6) is installed on the cylinder liner. Ensure
Caterpillar parts catalog:
Parts muffler Caterpillar catalog:
12G, 140G, 14G, 160G
16, 3126B, 3304, 3306, 3306B, 3406, 3406B, 3406C, 621, 623, 980, C-9, C7, C9, CX31-C9I, TH31-E61
120G, 12G, 130G, 930R
1123553
MUFFLER GP
3306
3306
3306, 3306B
8N8730
MUFFLER AS
3306, 3406, 3406B, C13, RM-250C, RR-250, RR-250B, SM-350, SS-250
3306, 3406, 3406B, C13, RM-250C, RR-250, RR-250B, SM-350, SS-250
3208, 3304, 3306, 3306B, 515, 518, 518C, 525, 527
4W1017
MUFFLER AS
3304
3304
12G, 140G, 14G, 160G, D6F SR, D6G SR
930, 930R, D4D, D4E
120G, 12G
3786752
MUFFLER AS
236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D
236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D
4373550
MUFFLER AS
236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D
236D, 242D, 246D, 257D, 259D, 262D, 277D, 279D, 287D, 289D
3848804
MUFFLER AS
434F, 444F
434F, 444F
3593496
MUFFLER AS
422F
422F
3593495
MUFFLER AS
416F, 420F, 422F, 428F, 430F, 432F, 434F
416F, 420F, 422F, 428F, 430F, 432F, 434F
3897181
MUFFLER AS
424B, 424B HD
424B, 424B HD
0815671
MUFFLER AS
RT100
RT100
3208, 3304, 3306, 3306B, 515, 518, 518C, 525, 527
7E9516
MUFFLER AS
65, 75
65, 75
