Air and Fuel Intake Manifolds and Components

aFe POWER

85mm Billet Throttle Body

$723.45

SKU: 46-39101

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The aFe 85mm Billet Throttle Body is a direct-fit upgrade designed for 2018-2020 Ford F-150 models with the 5.0L engine. It features an 85mm bore diameter and is crafted from precision-machined 6061-T6 billet aluminum with a black anodized finish.

This throttle body is engineered to provide noticeable power gains, with manufacturer claims of +17 horsepower and +15 lb-ft of torque.
Show original supplier description
The aFe POWER 85mm Billet Throttle Body is precision-machined from billet 6061-T6 aluminum with a black anodized finish, offering a subtle yet custom look. This upgrade increases the bore diameter from the stock 80mm to 85mm, aerodynamically improving the air flow path. aFe designed this throttle body to provide dyno-proven horsepower and torque gains, with up to +17 HP and +15 lb-ft of torque reported. Its design out-flows the OE by 17% at Wide Open Throttle (WOT) and significantly improves airflow at 90% throttle blade opening for smoother power delivery in the upper RPM range. The 85mm diameter is chosen specifically because it requires no custom tuning and provides a direct path into the stock 84mm intake manifold opening, avoiding the need for manifold modifications. The product is compatible with the stock intake tube or aftermarket cold air intakes without requiring special adapters. It is primarily designed for the Ford Mustang GT 18-25 V8-5.0L and also fits select F-Series trucks. A specific fitment note indicates that for the 2024 Mustang 5.0L, two throttle bodies are required.
Vehicle Symptoms
  • Sluggish acceleration from stop
  • Lack of top-end power
  • Throttle response feels delayed
  • Engine feels restricted at high RPM
  • Noticed power loss after adding other mods
Relevant Conversations
  • aFe 85mm throttle body F-150 5.0 review
  • 2018 F-150 throttle body upgrade gains
  • best throttle body for 5.0L F-150
  • aFe vs BBK throttle body F-150
  • how to install aFe throttle body F-150
  • F-150 sluggish throttle response fix
  • F-150 throttle body with cold air intake
  • 85mm throttle body Ford F-150 dyno
  • aFe 46-39101 install tips
  • F-150 5.0 performance throttle body

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandaFe POWER
Part Number46-39101
CategoryAir and Fuel

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

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