Cummins Air Filter Holder 3630538 KTA38

The Air Filter Holder 3630538 is an OEM-engineered component designed for Cummins KTA38 (38L, 1,400–2,300 hp) engines in industrial, marine, and power generation applications. It securely mounts the air filter assembly to the engine, ensuring stable airflow and protecting the intake system from vibration-induced damage. Constructed from high-strength cast aluminum alloy, it withstands 150 N·m torque and operating temperatures up to 180°F (82°C), while maintaining a lightweight design (1.8 kg).

Structural Integrity

- Cast Aluminum Alloy: Resists corrosion and thermal stress, outlasting plastic alternatives by twice as long.

- Reinforced Rib Design: Reduces vibration transmission by 40%, extending filter service life.

- Precision Fit: Direct bolt-on installation for KTA38-G5 engines (2015+ models)-no modifications required.

Airflow Optimization

- Engineered Clearance: Ensures unobstructed air passage to the turbocharger.

- Mounting Stability: Prevents filter element misalignment, maintaining 99.9% filtration efficiency.

OE Compliance

- Meets Cummins' ISO 16889 (multi-pass test) and SAE J1723 durability standards.

- Matches factory specifications for weight, dimensions, and bolt patterns.

Part Number : 3630538 (Rev B, 2025 formulation)

Compatibility : Cummins KTA38-G5 (2015+) engines

Material : Cast aluminum alloy (Al-Si-Mg)

Max Torque Rating : 150 N·m (110 ft-lb)

Temperature Range : -40°F to 392°F (-40°C to 200°C)

Weight : 1.8 kg (3.97 lb)

Mounting Points : 4-bolt pattern (M8 × 1.25 threads)

Finish : Powder-coated black (RAL 9005)

Installation Steps:

1. Torque Sequence: Apply 25 ± 2 N·m (18 ft-lb) to mounting bolts in a star pattern.

2. Alignment Check: Use alignment jig P/N 3975652 to ensure ≤0.5 mm deviation.

3. Vibration Test: Verify no lateral movement at 2,100 RPM (maximum engine speed).

Maintenance Schedule:

- Every 500 Hours: Inspect for cracks or corrosion.

- Every 2,000 Hours: Retorque mounting bolts to specification.

- Lubrication: Apply anti-seize compound to threads during reinstallation.