Ignitions and Electrical Charging Systems

Porsche

Lightweight Lithium-Ion Battery

$5,000.00

SKU: 991-611-040-52

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In Stock
Ships by Aug 2
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INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Porsche 991-611-040-52 is a genuine OEM lightweight battery specifically engineered for performance applications. This lithium-ion unit features a 40 amp rating and an 18 Ah capacity, making it an ideal choice for race circuits where weight reduction is crucial. It serves as a high-performance alternative to standard vehicle batteries. This battery is designed for direct fitment in various Porsche 911 models, including the GT3 and GT3 RS. Fitment is confirmed for model years such as 2014 through 2019, often specifying 3.0L or 3.8L H6 - Gas engines. Owners can verify compatibility with their specific Porsche 911 configuration.

Fitment

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Specifications

BrandPorsche
Part Number991-611-040-52
CategoryIgnitions and Electrical

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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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