Replacement part Cylinder Head 8N6000 8N6004 suit for CAT engine D342

Basic Info.

Product Details

• Item Model：8N6001 8N6004

• Date First Listed：2024/12/02

• Manufacturer：Diron Parts

Product Description

• Part Number：8N6000 8N6004

• Part Type：Cylinder Head

• Compatible Equipment：Replacement part Cylinder Head 8N6000 8N6004 suit for CAT engine D342

Product Introduction: Cylinder Heads 8N6000 and 8N6004 for Caterpillar D342 Diesel Engine

Overview

The Cylinder Heads 8N6000 and 8N6004 are precision-engineered components designed for the Caterpillar D342 diesel engine, critical for sealing the combustion chamber, housing the valves, and facilitating efficient airflow and fuel combustion. These parts are essential for maintaining engine performance and reliability in heavy-duty applications, such as track-type tractors and pipelayers. Available as new aftermarket, remanufactured, or genuine OEM parts, they provide robust solutions for engine maintenance.

Clarification on Engine Type and Part Numbers

The previous query referenced a “CAT gas engine D342,” which was corrected to confirm the D342 as a diesel engine. The Caterpillar D342 is a 6-cylinder, 20.4L diesel engine used in heavy machinery such as D8H, D8K tractors, and 583K pipelayers. The current query pairs 8N6000 and 8N6004. Notably, 8N6000 is primarily a casting number used in D342 cylinder heads, including 8N6001 and 8N6004, rather than a distinct part number for a specific head. This response clarifies their roles: 8N6004 is a counterbore (non-spacer plate) cylinder head, while 8N6000 is the base casting shared by heads like 8N6001 (spacer plate) and 8N6004. The response focuses on 8N6004 as the primary head, with 8N6000 addressed as a casting reference.

Key Features

Dimensions: Specific dimensions are not publicly detailed, but approximate measurements for similar 3400-series heads are 1028.7 mm (length), 393.7 mm (width), and 292.1 mm (height). D342 heads are likely comparable due to engine size. Typical bare cylinder heads weigh approximately 200-250 lbs (91-113 kg), with loaded assemblies heavier due to pre-installed components.

Material: Constructed from high-grade cast iron, designed to withstand extreme temperatures, pressures, and mechanical stresses in the D342 diesel engine. Features precision-machined surfaces for optimal sealing, heat dissipation, and durability.

Design:

8N6000: A casting number used in D342 cylinder heads, including 8N6001 (spacer plate) and 8N6004 (counterbore). It represents the base casting before machining into specific head configurations. Not typically sold as a standalone part but integral to 8N6001 and 8N6004 assemblies.

8N6004: Counterbore (non-spacer plate) cylinder head, designed for D342 engines with counterbore block configurations. Includes valve seats, guides, and ports optimized for efficient combustion and exhaust flow. Available as a bare head (with valve guides and seats) or loaded assembly with pre-installed valves, springs, premium valve stem seals, retainers, and injector cups. Features advanced cooling passages to manage engine temperature effectively.

Compatibility: Compatible with Caterpillar D342 diesel engines, used in:

Track-Type Tractors: D8H (e.g., serial numbers 36A05329-UP, 46A24433-UP), D8K.

Pipelayers: 583, 583K.

Marine Applications: D342 marine engines (e.g., serial number 50B01025-UP).

Engines: D342 (inline 6-cylinder, 20.4L, 2-valve per cylinder configuration, diesel, precombustion chamber), with specific serial numbers (e.g., 49B01091-UP for D342 engine, 50B01025-UP for D342 marine engine). The 8N6004 is specific to counterbore block engines, while 8N6000 is the casting number for heads like 8N6001 (spacer plate) and 8N6004. Exact compatibility must be verified using the engine’s serial number and block type (counterbore for 8N6004) via CAT SIS, as per Caterpillar’s policy.

Cross-References:

8N6000: Casting number, associated with 8N6001, 8N6004, 7N6358 (spacer plate), 7N6357 (counterbore), 4N7041, 7N1962, 5N8505, 5N8506.

8N6004: 8N-6004, CA8N6004, 8N6000 (casting), 7N6357, 2473369, CA2473369, 247-3369, 8H5980, 8N4229.

The 8N6004 is interchangeable with earlier counterbore heads (e.g., 8H5980) for non-spacer plate D342 engines, while 8N6000 links to both spacer plate (8N6001) and counterbore (8N6004) configurations, depending on machining.

FAQ