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Air and Fuel› Throttle Cables, Linkages, Brackets and Components

Tomei

Actuator Spring

$7.00 $6.30 Save $0.70

SKU: TB401B-SPR07

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Tomei TB401B-SPR07 is an actuator spring for turbochargers. It is available in various colors, including red, blue, and silver.
Show original supplier description
The Tomei TB401B-SPR07 is a genuine replacement actuator spring designed to restore or fine-tune the performance of your turbocharged system. As a critical component of the wastegate mechanism, this spring plays a vital role in regulating boost pressure by ensuring proper clamp load and alignment. This actuator spring is part of Tomei's extensive line of turbocharger repair parts, allowing you to service and maintain your existing turbocharger without needing to replace the entire unit. It is compatible with various Tomei turbocharger models, including those listed under the MX EJ S/S and MX 1JZ series. The product is readily available and often offered in different colors to suit specific applications or preferences, such as red, blue, or silver. While specific horsepower or torque gains are not quantifiable for this individual part, a properly functioning actuator spring is essential for the overall efficiency and responsiveness of the turbocharger system.

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

BrandTomei
Part NumberTB401B-SPR07
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

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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