WEHRLI CUSTOM FAB WCF100358 UNIVERSAL T4 SPACER PLATE KIT 1.5IN W/STUDS & GASKETS

Wehrli WCF100358 Universal 1.5" T4 Spacer Plate Kit

The WEHRLI CUSTOM FAB WCF100358 UNIVERSAL T4 SPACER PLATE KIT 1.5IN W/STUDS & GASKETS is built for serious turbo setups that need extra room for manifolds, pedestals, downpipes, or wastegate plumbing. This 1.5" thick divided T4 spacer plate raises and spaces the turbocharger off the T4 flange, helping with fitment and heat management while maintaining a strong, leak-free seal.

Constructed from heavy-gauge steel and finished in a black ceramic coating, this spacer kit is designed to stand up to high EGT, boosted daily drivers, and competition engines alike. Wehrli includes the correct M10 hardware and a pair of T4 gaskets so you can bolt it in and get back to tuning.

Key Features & Benefits

• 1.5" thick divided T4 spacer plate for additional turbo height and clearance.
• Steel construction with black ceramic coating for excellent heat resistance and durability.
• Universal T4 flange pattern — works with standard T4 turbo manifolds, pedestals, and housings.
• Helps clear tight firewalls, shock towers, valve covers, and custom turbo piping.
• Includes M10 mounting studs, nuts, and washers for a solid clamping load.
• Comes with two T4 gaskets for proper sealing on both sides of the spacer.
• Perfect for custom single, S300/S400, and compound turbo applications.

What's Included

• 1 x 1.5" thick divided T4 steel spacer plate, ceramic coated black.
• 4 x M10 mounting studs (approx. 2.75" long).
• 4 x M10 nuts.
• 4 x M10 washers.
• 2 x T4 turbo flange gaskets.

Vehicle Fitment / Applications

This kit uses a standard T4 flange and is sold as a universal turbo accessory. It is commonly used in custom diesel and gas turbocharger builds, including but not limited to:

• GM Duramax platforms using T4 turbo pedestals and manifolds.
• 5.9L and 6.7L Cummins builds converted to T4 turbochargers.
• Ford Power Stroke and other custom T4 turbo swaps.
• Any engine using a T4-flanged manifold or pedestal where extra turbo height/offset is required.

Because every custom turbo install is different, minor fabrication may be required. Always verify firewall, hood, and downpipe clearance after test fitting.

Typical Uses

• Raising the turbocharger to clear engine covers, valve covers, or intake runners.
• Shifting the turbo position for better downpipe or wastegate routing.
• Improving access to turbo oil feed/return lines or manifold hardware.
• Fine-tuning turbo placement on custom manifolds, pedestals, or compound setups.

Recommended Wehrli & CPP Diesel Upgrades

Build a complete, clean turbo setup by pairing the WCF100358 spacer with these Wehrli components available at CPP Diesel:

• WEHRLI WCF100800 UNIVERSAL T4 SPACER PLATE KIT 1IN W/STUDS & GASKETS — 1" T4 spacer for builds that need less height.
• WEHRLI CUSTOM FAB WCF100118 UNIVERSAL T4 SPACER PLATE KIT 0.5IN W/STUDS & GASKETS — 0.5" T4 spacer for fine adjustment or tight engine bays.
• WEHRLI WCF100325 L5P DURAMAX T4 TURBO PEDESTAL — T4 pedestal for L5P Duramax trucks, ideal with Wehrli spacer plates.
• WEHRLI WCF100717 UNIVERSAL 4IN INLET DRY AIR FILTER (USE W/WCF KITS) — high-flow dry filter that pairs well with custom T4 turbo systems.

Specifications

FAQ

The spacer sits between your T4 manifold/pedestal and the turbo, raising the turbo about 1.5" and adding a bit of separation. This helps with firewall clearance, downpipe routing, wastegate plumbing, and heat management while still maintaining a proper T4 seal.

It is universal to the T4 flange pattern. As long as your manifold or pedestal and turbo both use a standard T4 flange, this spacer will bolt up. Because every custom build is different, some trimming or small changes to intercooler piping, downpipe, or heat shielding may be required. Professional installation is recommended on tight or high-horsepower setups.

In most builds, the impact on spool is minimal compared to the overall benefits in fitment and heat control. The exhaust path is only slightly longer, and the divided T4 crossover is preserved. In return, you gain the clearance needed to run larger housings, external gates, or more ideal downpipe routing, which often improves drivability and reliability.

Stacking spacers is generally not recommended, as it increases leverage on the studs and can make it harder to maintain clamp load and gasket seal. Instead, choose the thickness that best fits your build (0.5", 1", or 1.5") using Wehrli spacer options or a combination of Wehrli and CPP Diesel T4 components designed for the height you need.

Yes, and this kit includes them. You get two new T4 gaskets so you can seal both sides of the spacer (manifold-to-spacer and spacer-to-turbo). Always install on clean, flat flanges and torque the hardware in a cross pattern to the recommended spec.