Technical Specifications: Caterpillar 7F-1866 Engine Oil Pump BoltThe Caterpillar 7F-1866 Bolt is a high-tensile, precision-machined mechanical fastener. It is engineered primarily to secure the engine oil pump assembly to the engine block web, maintaining optimal alignment and structural integrity to support uniform engine lubrication and oil pressure performance.
1. Core Dimensions & Fastener Specs
- Thread Size: 3/8 - 16 (Standard Coarse Thread)
- Drive / Hex Head Size: 14.29 mm (9/16 in Across Flats)
- Grip Length: 34.92 mm (1.375 in)
-
Thread Configuration: Coarse
2. Material & Manufacturing Specs
-
Material Grade: High-strength hardened alloy steel matrix.
-
Surface Treatment / Coating: Heavy-duty galvanized or zinc-plated coating to provide corrosion resistance against engine oil exposure and hot thermal environments.
-
Structural Profile: Standard hexagonal bolt head optimized to withstand specific target installation torque specs without head shearing or thread stripping.
3. System & Equipment Compatibility
This hardware fastener is deployed inside the internal oil pump attachment groups of large industrial diesel systems and auxiliary heavy machinery configurations:
-
Engine System: Fits a wide variety of legacy and heavy-duty Caterpillar engine architectures, specifically applied within internal oil pump groups, timing gear housing clamps, and block pan mount frameworks.
-
System Application: Formulated to handle continuous high-vibration engine environments, keeping the pump flange flush against sealing gaskets.
4. Part Cross-References
- Alternative Part Numbers: 7F1866, 7F 1866
