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Suspension and Components Front Suspension Components

SPL PARTS INC.

SPL Parts Porsche 981/991 Front Trailing Arms

$799.00 $629.01 Save $169.99

SKU: S015 SPL TR 991

In Stock
In Stock
Ships by Sep 21
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The SPL Adjustable Front Caster Arms are designed for the Porsche 911 (991) and 718 Boxster/Cayman (981/982). These arms replace the factory caster/trailing arm with a fully adjustable, spherical-bearing design. This allows for a wide range of front caster adjustment to optimize turn-in response and correct left/right caster variance.
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Part #: SPL TR 991

SPL Front Caster/Thrust/Tension rods provide a wide range of front caster adjustment, allowing precise alignment for optimal turn-in response and to compensate for variances between left and right caster. Any changes to front camber will change front caster necessitating adjustable arms for a proper alignment. Low-friction, smooth articulating FK Spherical Bearings eliminate the stock mushy rubber bushing to provide a more responsive steering feel. Anti dive geometry can also be tuned with the use of our 6061 aluminum spacers. These arms are designed to be used with the OEM or OEM style front lower control arms.Our parts are engineered for maximum performance. Billet Aluminum alloy 2024 hex rods are precision CNC machined and gun drilled to reduce unsprung weight while maintaining high strength and stiffness. Our exclusive 360 degree Rotating Clamp design allows for easy access to quickly and precisely locking in your desired alignment settings. Long gone are the days of fumbling with wrenches to tighten jam nuts while trying to trying to keep your bearings oriented correctly. Blue Anodized Titanium hardware shaves even more unsprung weight from the arms and offers superior strength. These arms are designed for use in high performance street and race vehicles

Features:

  • Proudly made, engineered, and assembled in the USA.

SPL Porsche 991 / 981 Front Adjustable Caster Arms

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

BrandSPL PARTS INC.
Part NumberS015 SPL TR 991

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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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