Skip To Content
    Shopping Cart
    O-Ring Kit - 321306

    O-Ring Kit

    The PAI 321306 Turbocharger O-Ring Kit is crafted for Caterpillar 3406E, C15, C16, and C18 turbocharger assemblies. It includes all necessary O-rings, gaskets, and seals for leak-free performance and OEM-grade quality. Direct cross-references include Caterpillar part 3252721, 110-4901, 140-9877, 189-5391, and others—ensuring compatibility and ease of installation. Made by PAI in the U.S., backed with a 2-year unlimited-mileage warranty, and sold by Wofford Truck Parts.

    Pai Industries Part No: 321306

    $87.59

    Quantity Selection

    Specifications

    The PAI 321306 Turbocharger O-Ring Kit is a complete sealing solution tailored for Caterpillar’s 3406E, C15, C16, and C18 turbochargers. Precisely engineered components—O-rings, gaskets, and seals—ensure proper fit and secure installation, effectively preventing turbo leakage and preserving boost integrity. Cross-referenced to an array of OE part numbers including Caterpillar 110-4901, 140-9877, 189-5391, 213-8203, 217-2332, 241-0825, and 325-2721, making it a versatile and reliable choice for rebuilds or maintenance. Manufactured under ISO 9001:2015 standards in the U.S., this PAI kit comes with a 2-year unlimited-mileage warranty. Offered by Wofford Truck Parts, it’s the trusted option for fleet and service professionals needing assured sealing performance.
    Weight
    1.26

    Compatibility

    Freightliner Classic / FLD / Coronado – late 1980s through early 2000s

    Peterbilt (e.g., 379, 379EXHD) – late 1980s through early 2000s

    Kenworth W900 / T800 – late 1980s through early 2000s

    Mack CH Series (with CAT engines) – 1990s–early 2000s

    International 9000/9200/9900 Series – 1990s–early 2000s

    Western Star 4800 / 4900 – 1990s–early 2000s


    Alternative Part Numbers

    Caterpillar 110-4901
    Caterpillar 140-9877
    Caterpillar 189-5391
    Caterpillar 213-8203
    Caterpillar 217-2332
    Caterpillar 241-0825
    Caterpillar 325-2721
    PAI 321306

    Related Parts
    Oil Drain O-Ring - A-23530682
    Oil Drain O-Ring - A-23530682 $0.71
    Cylinder Sleeve O-Ring Kit - M-680086C1
    Cylinder Sleeve O-Ring Kit - M-680086C1 $5.46
    Injector Kit O-Ring - MCBN14INJ
    Injector Kit O-Ring - MCBN14INJ $3.04
    O-Ring - 121217
    O-Ring - 121217 $0.64
    O-Ring - 121221
    O-Ring - 121221 $0.61
    O-Ring - 121237
    O-Ring - 121237 $0.29
    Injector O-Ring Kit - 121309
    Injector O-Ring Kit - 121309 $25.67
    O-Ring - 121315
    O-Ring - 121315 $2.93
    O-Ring - 121316
    O-Ring - 121316 $2.48
    O-Ring - 121366
    O-Ring - 121366 $4.87
    O-Ring - 121423
    O-Ring - 121423 $9.14
    O-Ring - 131360
    O-Ring - 131360 $2.58
    O-Ring Kit - 321285
    O-Ring Kit - 321285 $9.20
    O-Ring Kit - 321306
    O-Ring Kit - 321306 $87.59
    O-Ring - 321390
    O-Ring - 321390 $3.54
    O-Ring - 621254
    O-Ring - 621254 $0.94
    O-Ring - 621212
    O-Ring - 621212 $1.90
    O-Ring - 621252
    O-Ring - 621252 $4.90

    This website uses cookies to provide users the best possible experience. Learn more. Please also review our terms of use and terms of sale.