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Cat® 145-7390 Engine Intake Valve (40 mm OD) for C7 and 3126B Series Engines

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  2. Cat® 145-7390 Engine Intake Valve (40 mm OD) for C7 and 3126B Series Engines
Cat® 145-7390 Engine Intake Valve (40 mm OD) for C7 and 3126B Series Engines
Cat® 145-7390 Engine Intake Valve (40 mm OD) for C7 and 3126B Series Engines

High-performance Cat® 145-7390 Intake Valve (40 mm) for C7 and 3126B engines. Forged from Alloy Chromium steel for maximum heat resistance and reliability in 325D and 324D excavators. Optimize your engine's combustion efficiency with genuine-quality replacement parts. Contact us for bulk pricing.

Technical Specifications 145‑7390 ‑ Intake Valve for CAT C7/3126 Engines

145‑7390 Intake Valve — High‑Performance Engine Inlet Valve

The 145‑7390 Intake Valve is a precision‑manufactured cylinder‑head component for Caterpillar C7 and 3126 series engines. With a 40‑mm head diameter, it accurately controls intake air‑fuel mixture entry during the intake stroke. Precise opening‑closing timing ensures high volumetric efficiency, stable combustion and reliable engine power output.

1. Technical Specifications

Technical ParameterSpecification Details
Part Number145‑7390 (1457390)
Product TypeIntake / Inlet Valve
Valve Head Diameter40 mm
MaterialHigh‑Strength Chromium‑Alloy Steel
Overall Dimensions (L × H)8.1 in (205.7 mm) × 2.1 in (53.3 mm)
Core FunctionIntake Air‑Fuel Mixture Control & Combustion‑Chamber Sealing

2. Machine Compatibility

This intake valve fits various Caterpillar construction machines powered by C7 / 3126 series engines:

  • Excavators: 324D, 324D L, 325D, 325D L, 328D LCR, 325C, 322C FM, M325D MH

  • Engine Platforms: C7 Industrial / Truck Engine, 3126, 3126B, 3126E

  • Wheel Loaders: 950H, 962H, 938G II, 950G II, 962G II

  • Dozers: D5N, D6N

  • Motor Graders: 120H, 140M, 140G, 135H

  • Special‑Purpose Machines: 953C/963C Track Loaders, 561N Pipelayers, AP‑755 Pavers

3. Key Features & Advantages

  • Heat‑Resistant Alloy Material: Chromium‑alloy steel resists high‑temperature ablation and valve‑face recession, improving long‑term durability under heavy‑load operation.

  • OEM‑Standard Precision Machining: Manufactured to CAT original dimensional standards, ensuring stable sealing performance and avoiding cylinder‑pressure leakage.

  • Optimized Combustion Efficiency: Accurate intake timing reduces carbon accumulation and exhaust emissions, maintaining stable engine power and fuel economy.

  • Overhaul‑Friendly Durability: High structural strength allows re‑grinding reuse during engine overhaul, lowering fleet maintenance costs.

Commercial Reference Information
Product: Engine Intake Valve
Cross Part Number: 1457390
MOQ: 1‑12 PCS
Warranty Period: 6‑12 Months

For bulk wholesale, technical consultation and engine‑valve component solutions:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]

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