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do88 Transmission Cooler - BMW S58 (G80/G82/G87) 2020-2026

do88 SKU: DOBOC-210
Price
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The ZF 8HP behind the S58 is strong, but added power and track use push the factory transmission cooling past its limit, which shows up as slower shifts and risks damaging the gearbox. do88's replacement raises core volume by 71% and cooling surface area by 50% while holding similar oil pressures, and lifts the oil volume in the cooler from 0.6 to 0.85 litres, a 42% increase. Harmonica tubes with internal channels carry the flow and a dual pass layout keeps the fluid in the core longer so more heat is shed. OEM style quick connect fittings make it a drop-in change.

Specifications

Type Liquid to air automatic transmission cooler for the ZF 8HP, dual pass
Position Front, external transmission oil circuit
Core Volume 71% larger than OE
Active Cooling Area 50% larger than OE
Oil Capacity 0.85 L (OE 0.6 L, 42% more)
Construction Harmonica tubes with internal channels, dual pass flow
Inlet/Outlet OEM style quick connect
Quantity 1
OEM Replacement 17118095284
Part Number OC-210

Documents: Installation Instructions (PDF)

This part fits:

Year Make Model Submodel
2023 BMW M2 G87 (S58)
2024 BMW M2 G87 (S58)
2025 BMW M2 G87 (S58)
2026 BMW M2 G87 (S58)
2020 BMW M3 M3 / Competition / CS (G80)
2021 BMW M3 M3 / Competition / CS (G80)
2022 BMW M3 M3 / Competition / CS (G80)
2023 BMW M3 M3 / Competition / CS (G80)
2024 BMW M3 M3 / Competition / CS (G80)
2025 BMW M3 M3 / Competition / CS (G80)
2026 BMW M3 M3 / Competition / CS (G80)
2020 BMW M4 M4 / Competition / CSL (G82)
2021 BMW M4 M4 / Competition / CSL (G82)
2022 BMW M4 M4 / Competition / CSL (G82)
2023 BMW M4 M4 / Competition / CSL (G82)
2024 BMW M4 M4 / Competition / CSL (G82)
2025 BMW M4 M4 / Competition / CSL (G82)
2026 BMW M4 M4 / Competition / CSL (G82)

Shipping

  • Orders placed before 3 PM ET typically ship the same business day. Some items ship within 1 to 3 business days.
  • Standard, expedited, and overnight options at checkout.
  • Oversized items ship by freight and take longer.
  • Backordered items ship as soon as stock lands. Contact us for lead times.
  • International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

  • 30-day returns on new, uninstalled items in original packaging with all hardware.
  • Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
  • Installed or used parts cannot be returned. Confirm fitment before you install.
  • Special orders and custom items are final sale.
  • Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy
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