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    • 88-98 GMT400 (OBS)
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    Kloc Fabrication

    • Automotive Products
      • 88-98 GMT400 (OBS)
        • Shop All 88-98 GMT400 Products
        • Transmission Coolers & Line Kits
        • Coolant Reservoirs & Surge Tanks
        • Washer Fluid Reservoirs
        • Crankcase Breather Filters & Catch Cans
        • Engine Oil Cooler Accessories
      • Squarebody C/K
      • Ford Mustang
      • Fittings & Caps
    • Bargain Bin
    • Custom Reservoirs
    • Order Processing & Shipment
    • Contact
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    Aftermarket solutions for all 1988-1998 GMT400 Vehicles.

    Featured products

    • 1988-1998 GMT400 (C/K1500) Notched Hood Latch Bracket

      1988-1998 GMT400 (C/K1500) Notched Hood Latch Bracket

      1988-1998 GMT400 (C/K1500) Notched Hood Latch Bracket

      54 reviews

      4.98 / 5.0

      (54) 54 total reviews

      Regular price From $165.75 USD
      Regular price Sale price From $165.75 USD
      Unit price /  per 
    • Tru-Cool 40K Installation Bundle (For 1988-1998 GMT400 C/K)

      Tru-Cool 40K Installation Bundle (For 1988-1998 GMT400 C/K)

      Tru-Cool 40K Installation Bundle (For 1988-1998 GMT400 C/K)

      27 reviews

      5.0 / 5.0

      (27) 27 total reviews

      Regular price From $495.00 USD
      Regular price Sale price From $495.00 USD
      Unit price /  per 
    • Tru-Cool 40K Line Kits

      Tru-Cool 40K Line Kits

      Tru-Cool 40K Line Kits

      20 reviews

      4.9 / 5.0

      (20) 20 total reviews

      Regular price From $165.00 USD
      Regular price Sale price From $165.00 USD
      Unit price /  per 
    • Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)

      Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)

      Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)

      22 reviews

      4.64 / 5.0

      (22) 22 total reviews

      Regular price $150.00 USD
      Regular price Sale price $150.00 USD
      Unit price /  per 
    • 1988-1998 GMT400 (C/K1500) Coolant & Breather Filter Combo Tank

      1988-1998 GMT400 (C/K1500) Coolant & Breather Filter Combo Tank

      1988-1998 GMT400 (C/K1500) Coolant & Breather Filter Combo Tank

      8 reviews

      5.0 / 5.0

      (8) 8 total reviews

      Regular price From $450.00 USD
      Regular price Sale price From $450.00 USD
      Unit price /  per 
    • 1988-1998 GMT400 (C/K1500) Pressurized Surge Tank

      1988-1998 GMT400 (C/K1500) Pressurized Surge Tank

      1988-1998 GMT400 (C/K1500) Pressurized Surge Tank

      17 reviews

      5.0 / 5.0

      (17) 17 total reviews

      Regular price From $280.00 USD
      Regular price Sale price From $280.00 USD
      Unit price /  per 
    • 1988-1998 GMT400 (C/K) Coolant Overflow Reservoir

      1988-1998 GMT400 (C/K) Coolant Overflow Reservoir

      1988-1998 GMT400 (C/K) Coolant Overflow Reservoir

      24 reviews

      5.0 / 5.0

      (24) 24 total reviews

      Regular price From $250.00 USD
      Regular price Sale price From $250.00 USD
      Unit price /  per 
    • 1993-1998 GMT400 (C/K) 6.5L Diesel Coolant Reservoir

      1993-1998 GMT400 (C/K) 6.5L Diesel Coolant Reservoir

      1993-1998 GMT400 (C/K) 6.5L Diesel Coolant Reservoir

      11 reviews

      5.0 / 5.0

      (11) 11 total reviews

      Regular price From $315.00 USD
      Regular price Sale price From $315.00 USD
      Unit price /  per 
    • 1988-1994 GMT400 (C/K1500) Washer Fluid Reservoir

      1988-1994 GMT400 (C/K1500) Washer Fluid Reservoir

      1988-1994 GMT400 (C/K1500) Washer Fluid Reservoir

      21 reviews

      5.0 / 5.0

      (21) 21 total reviews

      Regular price From $215.00 USD
      Regular price Sale price From $215.00 USD
      Unit price /  per 
    • 1995 GMT400 (C/K1500) Washer Fluid Reservoir

      1995 GMT400 (C/K1500) Washer Fluid Reservoir

      1995 GMT400 (C/K1500) Washer Fluid Reservoir

      1 review

      5.0 / 5.0

      (1) 1 total reviews

      Regular price From $255.00 USD
      Regular price Sale price From $255.00 USD
      Unit price /  per 
    View all

    Let customers speak for us

    from 233 reviews
    Quality and packaging

    Honestly it was over packed and over labeled hahaha but who's complaining? Not me. Quality looks on point, after I install it, i'll update the review. Thanks!

    Dnice
    11/06/2026
    GMT400/5.7L 350 Oil Cooler AN Line Kit
    Nothing but the best

    All I can saw is I’m more than happy with my purchase from Kloc Fabrication. From the time I contacted them to see if they would do something custom to the time it was delivered they were on top of it. I almost hate putting it on the truck because it’s so nice. Quality work all the way around. You can’t go wrong ordering from Kloc.

    Stephen Dunn
    11/06/2026
    Can’t be beat.

    All I can saw is I’m more than happy with my purchase from Kloc Fabrication. From the time I contacted them to see if they would do something custom to the time it was delivered they were on top of it. I almost hate putting it on the truck because it’s so nice. Quality work all the way around. You can’t go wrong ordering from Kloc.

    Stephen Dunn
    11/06/2026
    1988-1998 GMT400 (C/K1500) Pressurized Coolant Surge Tank & Breather Filter Combo
    Great Product

    Arrived fast and of great quality, well worth the money spent! Hopefully no more oil leaks or seepage!

    Ethan VanHorn
    11/05/2026
    GMT400/5.7L 350 Oil Cooler AN Line Kit

    great product

    Braxton
    11/02/2026
    1988-1998 GMT400 (C/K1500) Coolant & Breather Filter Combo Tank

    Great product, fast shipping. Will be purchasing more.

    Angel
    11/01/2026
    1988-1994 GMT400 (C/K1500) Washer Fluid Reservoir
    Washer reservoir

    Kloc fabrication is a top-notch company, their quality is 100% , both products I received from them were more than I expected. Their quality and craftsmanship is outstanding. I would recommend kloc fabrication to anybody.

    Jeffrey Neuman
    11/01/2026
    1988-1994 GMT400 (C/K1500) Washer Fluid Reservoir

    awesome company awesome product ill definitely be keeping an eye out for other obs parts.

    Aaron
    10/27/2026
    1988-1998 GMT400 (C/K1500) Pressurized Surge Tank
    Tank reservoir

    Awesome great product 👍

    Ronald Gimenez
    10/25/2026
    1988-1998 GMT400 (C/K) Coolant Overflow Reservoir
    91 c1509 overflow tank

    Kloc fabrication did an amazing job on fabricating this overflow tank for my 1991 Chevy C 1500. On a scale from 1 to 10 they’re a 10. Spencer was very friendly and knowledgeable. They also installed a – six fitting on the tank for me.

    Jeffrey Neuman
    10/11/2026
    1988-1998 GMT400 (C/K) Coolant Overflow Reservoir
    excellent service and product

    Fast shipping and product came fully protected and also came with attachments for installation. I especially appreciate the mote that came with the product.

    Jorge rosales
    10/11/2026
    Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)
    Cooler and lines

    Got a tru cool 40k and a set of lines for my 6l80 and it showed up fast and everything looks great

    Joe G
    10/05/2026
    Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)
    Coolant Reservoir

    Tank came in when he said it would and the fit and finish was amazing . Fits perfectly with the tubs

    Bryan gaston
    09/28/2026
    1988-1998 GMT400 (C/K) Coolant Reservoir for SLOSH TUBZ
    Black billet overflow tank 96 2dr tahoe

    This masterpiece is a work of art!!
    Sight glass in front,vented cap and even added arp 12pt 771-1002 stainless steel bolts..powdercoated matte black 6an fitting with black braided hose!! Its a show piece!! Fast shipping,replys quickly and the best part its family owned right here in the USA!!!😎👍🏻

    Dale Hall
    09/27/2026
    1988-1998 GMT400 (C/K) Coolant Overflow Reservoir
    Trustworthy parts and and service!

    Communication was excellent. Parts are quality. I had a cooler that was damaged in shipping and it was replaced immediately. Quick response and no stress. Packaging was nice and neat on the first shipment as well as the second. Attention to detail for sure. My parts came with quality inspection dates prior to shipping. Quality service.

    Vic
    09/21/2026
    Tru-Cool MAX 40,000 GVW (LPD47391 Replacement)

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    Kloc Fabrication

    Kloc Fabrication is a small family-owned and operated business. We strive for unmatched quality and customer support for every product and order.

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