8S3970 Chamber Assy Fits Caterpillar 8S3990, 9S8679, 2423438, 3256042, 8S-3970

One New Aftermarket Replacement Pre-Combustion Chamber Assembly Fits Caterpillar (Fits CAT) 3304 and 3306 Engines

This aftermarket replacement pre-combustion chamber assembly (Chamber A) Fits Caterpillar 3304 and 3306 diesel engines used across a wide range of Fits CAT construction and industrial equipment. The precombustion chamber is the space in the cylinder head where fuel is initially ignited before combustion spreads to the main cylinder, making it a critical component for reliable engine starting and performance. Compatible with glow plugs 3T8705 and 3T9561.

Specifications

• Part Type: Pre-Combustion Chamber Assembly (Chamber A)
• Compatible Glow Plugs: 3T8705, 3T9561
• Length: 6.1 in.
• Height: 2.6 in.
• Weight: approx. 2.6 lbs.

Compatible Models

Fits Caterpillar Engines: 3304, 3306, D330C, D333C, 1673C

Fits Caterpillar Excavators: 225

Fits Caterpillar Motor Graders: 12F, 12G, 14E, 14G, 120, 120B, 120G, 130G, 140, 140G, 143, 215

Fits Caterpillar Track Loaders: 941, 941B, 951B, 951C, 955K, 955L, 977, 977K, 977L

Fits Caterpillar Track-Type Tractors: D4D, D4E, D5, D5B, D6C, D6D, D7F, D7G

Fits Caterpillar Wheel Loaders: 920, 930, 930R, 930T, 950, 966C, 966R, 980B

Fits Caterpillar Wheel Dozers: 814, 815, 816

Fits Caterpillar Scrapers: 627, 627B, 637, 637B

Fits Caterpillar Pipelayers: 561C, 561D, 571F, 571G, 572F, 572G

Fits Caterpillar Wheel Skidders: 518, 528

Fits Caterpillar Compactors / Other: 4, 4A, 5, 6, 6A, 6S, SR4

Replaces Part Number(s):

8S3970, 8S-3970, 5S6795, 5S-6795, 7S7142, 7S-7142, 8S3990, 9S8679, 2423438, 242-3438, 3256042, 325-6042

New aftermarket replacement part - not remanufactured, not used.