1220322 Valve-Intake Fits Caterpillar Models

One New Aftermarket Replacement Intake Valve for Caterpillar (Cat) 3400 Series Engines

This aftermarket replacement intake valve fits Caterpillar (Cat) 3400 series diesel engines used across a wide range of construction, earthmoving, and industrial equipment. The intake valve controls airflow into the combustion chamber, opening and closing to allow the air/fuel mixture to enter the cylinders during the intake stroke. It is a precision engine component subject to high heat and wear, making quality replacement critical for engine performance and longevity.

Specifications

• Length: 8.1 in. (205.74 mm)
• Head Diameter: 2.1 in. (53.34 mm)
• Weight: approx. 0.44 lbs.

Compatible Caterpillar Engine Models

Caterpillar 3400 Series Engines: 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412D, 3412E

Caterpillar Equipment (representative): 621B, 621E, 621F, 623B, 623E, 623F, 627E, 627F, 631D, 631E, 631G, 633D, 633E II, 637D, 637E, 637G, 639D, 651E, 657E, 836, D8N, D8L, D8R, D9R, PM-565B, PM3412, PR-450C, PR1000, RM250C, RR250B, SS250B, SCT673, SPS342, SPT342

Replaces Part Number(s):

1220322, 122-0322

Aftermarket Interchange Numbers

M-1220322 (Interstate-McBee), IPD 1220322, 3848703, 384-8703, 211-4280, PAI 391943, 01830S (FP Diesel)

New aftermarket replacement part - not remanufactured, not used.