Mounts on top of the engine under the top cover with the logo
For vehicles with the earlier B46A/B48A (Gen1) Engine only - Not compatible with the B46D/B48D (Gen2) Engine
Eliminate crankcase pressure with one easy breather! Two Prong for Stock Valve Cover
2X Entries Into Our F80 M3 Sweepstakes For models with the Gen2 B58 or B48 engines only (B58TU / B48TU) For vehicles with the Gen2 B58C or B58D engine only
Includes the components needed to replace the two biggest B48 cooling issues, plus most of the "while you are in there" parts we highly recommend replacing - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA) For later models with the B48 Gen2 (B48D) engine only - Not compatible with earlier Gen1 engines
Brand:
ES#:
5425175
Mfg#:
G2XB48DOFHL2KT
Ships in 1 Business Day
ON SALE!
$1733.99
This product was last offered at the strikethrough price on 06-15-2026
Mounts on top of the engine under the top cover with the logo. Includes valve cover gasket.
2X Entries Into Our F80 M3 Sweepstakes We Price Match - Give Us A Call or Chat! For vehicles with the earlier B46A/B48A (Gen1) Engine only - Not compatible with the B46D/B48D (Gen2) Engine
Whether you're repairing or upgrading your engine, we have engine parts from the most respected suppliers in the business. Purchase engine parts like connecting rods, valves, camshafts, cylinder heads, engine blocks, pistons, and more from ECS Tuning for your next engine repair or overhaul.
Lifetime Replacement
