GoWesty Throttle Body for Original EFI

Part #: GVW-TB-DF-N

VW Part #: 025133061

Works With: 1984-91

Weight: 3.00 lbs

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Price: $279.95

We are extremely proud of our high-quality, brand-new, GoWesty-designed throttle body for your 2.1L and late 1.9L Vanagon fitted with original VW fuel injection.

• New 52mm anodized billet aluminum throttle body housing
• New anodized aluminum throttle plate.
• Sealed, stainless ball bearings locate the throttle shaft rotationally. No bushings to wear out.
• Precise shims locate the throttle shaft axially. No more throttle plate/housing contact and resulting wear of both.
• All new hardware
• Pre-adjusted throttle position switch (TPS)

These throttle body assemblies are completely new and have no core charge!

Note: This throttle body is a direct fit for all 2.1L throttle bodies and 1.9L throttle bodies that have 1 micro switch located under the throttle body.* This throttle body is NOT a direct replacement for 1.9L throttle bodies with the two micro switches on top of the TB, modification to the EFI wiring harness is required for that application. The Bosch Sealed 2 Pin Female Connector Kit is necessary to make this modification.

Note for Digijet (83-85 1.9L USA Vanagons):

The vacuum port on our throttle body is used on all Vanagons for the fuel tank vapor control system, and for the vacuum advance side of the Digijet distributor diaphragm. Connect the vacuum advance side of the distributor diaphragm to the vacuum port on the new throttle body. The vacuum retard port is connected to the intake manifold vacuum. Simply T off of the vacuum line that runs to the fuel pressure regulator and plumb it to the vacuum retard port on the distributor diaphragm.

*This throttle body is NOT compatible with the GoWesty Engine Management System (GW-EFI). It is for Digifant/Digijet fuel injection only. If you are ready to update your vehicle to a modern and reliable fuel injection system, please click the link above.

Product Videos

The stock throttle body is a poorly-built design, and it is the cause of many problems after 20+ years of operation. One of the main issues with the stock design is that the shaft is not shimmed properly, which causes the throttle shaft and plate to move downward (gravity). This downward force causes the throttle plate to come into contact with the throttle body housing, and the resulting wear creates some serious issues: air flow around the plate leads to high and unstable engine idle speeds; the throttle can stick open or closed, which creates a very unpleasant driving experience, and can be dangerous. This contact also causes the shaft to become uncentered, which increases shaft-to-throttle body wear. The throttle position switch becomes nearly impossible to adjust properly, meaning the Digifant system has no good indication of whether the system is actually at idle (for idle control) or actually at full throttle—which can wreak havoc with the Digifant system.

This GoWesty designed throttle body eliminates all of these problems. The throttle body housing is bored smooth to a 52mm diameter and fitted with a brand-new anodized aluminum throttle plate. The housing is machined for common size sealed ball bearings, which hold the shaft firmly in place. Every throttle shaft is shimmed properly to locate the throttle plate and prevent contact with the housing over time. Each throttle position switch and throttle plate stop has been pre-adjusted in-house during assembly. 

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