Track OrderOrder Status & ReturnsHelpGift CardsHelpHelp CenterPhone1-800-345-4545
Shop by Category

Most Popular

Restoration

Shop All Categories

Shop New ProductsShop ALL BrandsTech ArticlesDeals
MY ACCOUNT
Order Status & Returns
CONTACT USHELP CENTER
Logo
Cart0
$000
OE-Style 1-Row Radiator, Volkswagen Jetta, Volkswagen Beetle, Volkswagen Passat
InfoVehicle Info Needed
CSF RADIATORSPART NUMBER: 281-3921

OE-Style 1-Row Radiator, Volkswagen Jetta, Volkswagen Beetle, Volkswagen Passat

$9599
ShippingShips on Sep 07, 2026
Lowest PriceLowest Price Guarantee

Audi/Volkswagen
OE-Style 1-Row Radiator
  • Volkswagen Jetta, Volkswagen Beetle, Volkswagen Passat
  • Aluminum Core, Plastic Tank
    • See Fitment Tab Below

      CSF Radiators 3921 Features:

      • Inlet Diameter: 1 1/4 Left in.
      • Tech Note: O.E.M. style Plastic tank & Aluminum core with quick-connect inlet & outlet pipe.
      • Tank Material: Plastic
      • Cap Included: No
      • Outlet Width (in): 1 5/8
      • Outlet Length (in): 17 11/16
      • Oil Cooler (in): No
      • Radiator Core Row Quantity: 1
      • Inlet Width (in): 1 5/8
      • Inlet Length (in): 17 11/16
      • Down Flow Or Cross Flow Type: Cross Flow
      • Core Width: 17 in.
      • Core Thickness: 1 1/4 in.
      • Core Material: Aluminum
      • Core Length: 25 9/16 in.
      • Outlet Diameter: 1 1/4 Right in.

      • Industry-Leading Direct-Fit Radiator Upgrades

      CSF offers Direct-Fit Radiators built to OE specifications providing a simple drop-in-fitment. These radiators are upgrades over factory units and deliver efficient cooling performance and reliability for some of today's most popular vehicle models. They utilize high-quality materials and are available in three configurations: Plastic and Copper-Brass, Plastic and Aluminium, and Copper-Brass.

    Part TypeRadiator
    Product LineCSF Direct-Fit OE-Style Radiators
    BrandCSF RADIATORS
    Package Height5.0
    Package Width20.0
    Package Length32.0
    Weight7.0 PG
    Part CategoryReplacement Parts
    Part FitmentDirect Fit
    Vendor Part Number3921
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    16705 Service Pro Antifreeze Concentrate [1 gallon]

    GLOCKNER OIL

    16705 Service Pro Antifreeze Concentrate [1 gallon]

    Part Number : 708-16705
    $1999
    No Spill Coolant Filling Funnel Kit [15-Piece]

    JEGS

    No Spill Coolant Filling Funnel Kit [15-Piece]

    Part Number : 555-51220
    $1999$23.29
    You Save$3.30
    Racing Super Coolant Additive [16 oz.]

    JEGS

    Racing Super Coolant Additive [16 oz.]

    Part Number : 555-72324
    $1279$13.89
    You Save$1.10
    Racing Coolant and Antifreeze with LP-3 [1 Gallon]

    JEGS

    Racing Coolant and Antifreeze with LP-3 [1 Gallon]

    Part Number : 555-72316
    $2526$36.99
    You Save$11.73
    Ice Water Racing Coolant [1 Gallon, Non-Glycol]

    JEGS

    Ice Water Racing Coolant [1 Gallon, Non-Glycol]

    Part Number : 555-72314
    $2899$31.99
    You Save$3.00
    Funnel [8.5 in. Overall Length]

    JEGS

    Funnel [8.5 in. Overall Length]

    Part Number : 555-W4064
    $599$6.99
    You Save$1.00
    Cooling System Pressure Tester Kit

    JEGS

    Cooling System Pressure Tester Kit

    Part Number : 555-W89733
    $19399$213.99
    You Save$20.00
    Deluxe Antifreeze Tester

    JEGS

    Deluxe Antifreeze Tester

    Part Number : 555-W1656C
    $599$6.99
    You Save$1.00
    Penetrating Oil [11 oz. Aerosol Can]

    LUCAS OIL

    Penetrating Oil [11 oz. Aerosol Can]

    Part Number : 639-11043
    $854$9.49
    You Save$0.95
    LED Drop Light with Built-In 120V Outlet

    JEGS

    LED Drop Light with Built-In 120V Outlet

    Part Number : 555-W2237
    $2899$31.99
    You Save$3.00
    60 LED Work Light

    JEGS

    60 LED Work Light

    Part Number : 555-81927
    $2569$31.99
    You Save$6.30
    Heavy-Duty Steel Workbench [59.5 in. x 27.5 in. Bench Top]

    JEGS

    Heavy-Duty Steel Workbench [59.5 in. x 27.5 in. Bench Top]

    Part Number : 555-81440
    $32498
    Workbench Utility Mat [24 in. x 16 in.]

    JEGS

    Workbench Utility Mat [24 in. x 16 in.]

    Part Number : 555-80170
    $2569$31.99
    You Save$6.30
    99-Piece Tool Set with 4-Drawer Carry Case

    JEGS

    99-Piece Tool Set with 4-Drawer Carry Case

    Part Number : 555-80428
    $9699$143.99
    You Save$47.00
    8-Piece Screwdriver Set

    JEGS

    8-Piece Screwdriver Set

    Part Number : 555-W904
    $1099$12.99
    You Save$2.00
    3-piece SAE Flare Nut line Wrench Set

    JEGS

    3-piece SAE Flare Nut line Wrench Set

    Part Number : 555-W350
    $1499$16.99
    You Save$2.00
    5-Piece Pry Bar Set

    JEGS

    5-Piece Pry Bar Set

    Part Number : 555-80024
    $2669$28.99
    You Save$2.30
    Lo Boy Creeper 250 lb. Capacity

    JEGS

    Lo Boy Creeper 250 lb. Capacity

    Part Number : 555-81154
    $5999$65.99
    You Save$6.00
    6-Ton Jack Stands

    JEGS

    6-Ton Jack Stands

    Part Number : 555-80037
    $8099
    3-Ton Aluminum Floor Jack [6,000 lbs. Capacity]

    JEGS

    3-Ton Aluminum Floor Jack [6,000 lbs. Capacity]

    Part Number : 555-80077
    $24999$285.99
    You Save$36.00
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!