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Engines and Components› Pistons and Piston Rings

Mahle

Piston Kit

$824.54 $758.57 Save $65.97

SKU: M002 930285037T

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

This Mahle Motorsport 930285037T piston set includes TBC coated, forged 4032 pistons designed for Subaru WRX 2.5L STI, Forester, and Legacy vehicles. The pistons feature a 100.0mm bore, 30.7mm compression height, 79.0mm stroke, and are designed for a 130.5mm rod with a 23mm pin. They have a -19.3cc crown volume, weigh 405g, and result in an 8.5CR (compression ratio) with a 4032 alloy. The set includes pistons, pins, and round wire clips, and piston rings (1.0mm, 1.0mm, 2.0mm) with specific coatings and materials for optimal performance. Sold as a set of 4.
Show original supplier description

Part #: 930285037T

SUBARU WRX 2.5L STI, FORESTER, LEGACY 100.0mm x 30.7mm CH, 79.0mm stroke,130.5mm rod,23mm pin,-19.3cc,405g,8.5CR, 4032.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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

BrandMahle
Part NumberM002 930285037T
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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.

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