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B58 Racing
MaxCap Billet Oil Cap + Coolant Cap Set - B58 / S58 (Gold or Silver), photo 1 of 8
FTP Motorsport

MaxCap Billet Oil Cap + Coolant Cap Set - B58 / S58 (Gold or Silver)

$130.00 Available

Ships from the brand or distributor, usually in 3–7 business days

Make sure this fits your car

Fits: BMW/Toyota B58 and BMW S58 (choose your engine)

Color: Select one
Engine: Select one
1
  • Shipping at real carrier rates
  • 30-day returns on unused parts
  • Fitment help before you buy
Questions about fitment?Email a B58 tech with your VIN, and we'll confirm before you order.

This set swaps the plastic oil filler cap and coolant cap for CNC-machined billet versions. It's a simple way to tidy up a B58 or S58 engine bay, and it's one of the few parts you'll touch every time you check the fluids.

What you get

  • Billet oil filler cap, precision CNC machined.
  • Matching billet coolant cap in the same finish.

Pick your options

  • Color: Gold or Silver.
  • Engine: B58 or S58. Choose the one in your car, since the caps are made for each engine.

Guides for this part

B58 Common Problems by Generation (Gen 1, Gen 2 and 2025+) and the Parts That Fix Them

The B58 is one of BMW's most reliable modern engines, and most of its problems are leaks, not failures. The ones that come up again and again are the oil filter housing gasket, coolant leaks (water pump, expansion tank,

S58 Common Problems (G80 M3, G82 M4, G87 M2, X3 M and X4 M) and the Parts That Fix Them

The S58 is still a young engine, and its public problem record is short. The most serious items we found are two BMW delivery stops on small groups of early engines: a 2019 X3 M and X4 M build window where BMW replaced t

BMW S58 Mods Guide: M2, M3, M4, X3 M and X4 M Upgrades in Order

On an S58, start with a tune and cooling. These cars make a lot of power stock, and heat is what holds them back on hot days and back-to-back pulls. Next come downpipes and a tune built for them, then fuel: an ethanol an

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