HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob - HKS 51999-AF001
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HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob

HKS
HKS51999-AF001
4957266829110
Shift Knobs
12 Units In Stock - Ships Next Business Day
$ 135.00
$ 135.00

The HKS 15-21 Subaru WRX STI 6MT Carbon Shift Knob is designed for the 2004-2014 Subaru Impreza and the other applications in the fitment table. Match manufacturer part number 51999-AF001, the complete vehicle or system configuration, dimensions, connections, and included components before ordering.

Key Features

  • Exact configuration is identified by the manufacturer part number
  • Dimensions, material, finish, quantity, and interface vary by listing
  • Vehicle or system compatibility must be confirmed before ordering
  • Included components are limited to what the exact listing states

Fitment

Years Make Model Application
2004-2014 Subaru Impreza Confirm engine, body style, system configuration, and exact interface
2015-2021 Subaru WRX Confirm engine, body style, system configuration, and exact interface

Specifications

Brand HKS
Manufacturer Part Number 51999-AF001
Product Type Shift Knobs
Fitment Type Vehicle Specific
Condition New
Spherical section diameter 47 mm
Material Carbon fiber
Package dimensions 55 x 55 x 80 mm
Package weight 0.16 kg
Package Dimensions/Weight 55 x 55 x 80 mm, 0.16 kg

What's Included

One new HKS shift knobs identified by manufacturer part number 51999-AF001, in the quantity stated by the title. Additional wiring, pipes, hoses, clamps, fittings, gaskets, fluids, tuning, tools, and installation hardware are included only when expressly listed for this exact part number.

About HKS

HKS develops exhaust, forced-induction, cooling, engine, electronics, and exterior components for import and performance vehicle applications.

Related HKS Products

Frequently Asked Questions

How do I confirm this HKS part is correct?
Match the exact manufacturer part number, dimensions, material, finish, quantity, electrical requirements, and connection or mounting interface before ordering.

Is this a complete kit?
Only the components stated in the title and What’s Included section are supplied. Related wiring, fittings, hoses, clamps, sensors, tools, or hardware may be sold separately.

Can this part be used in a custom application?
Universal parts may work when every dimension and interface is verified. Vehicle-specific or system-specific parts should not be treated as universal without current manufacturer confirmation.

Installation Instructions

Follow the current HKS instructions and the vehicle service manual for part number 51999-AF001. Compare every component, connection, dimension, and mounting point before disassembly. Use the correct tools, fasteners, torque values, fluids, wiring protection, and safety procedures, then inspect for leaks, interference, heat exposure, clearance, and secure operation before normal use.

Request For Information

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Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

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