Alpina B4 Radiator cap

Compare Alpina B4 radiator cap from trusted brands — check fitment by engine

Browse Radiator cap parts for Alpina B4

Radiator cap for Alpina B4: all models

Alpina B4 Convertible F33 Alpina B4 Coupe F32

Special offers for Alpina B4 Radiator cap and other engine cooling system spares

Radiator Hose Radiator Engine cooling water pump Coolant thermostat Engine cooling fan Coolant expansion tank Coolant Flange Coolant Pipe

Hot Picks: our best-selling Alpina B4 Radiator cap

Popular Radiator cap parts at great prices.

GATESRC130RC130£7.99

AKS DASIS751648N751648N£10.99

METZGER AUTOTEILE2141038OE-PART£19.99

FEBI BILSTEIN184638184638£5.99

Related models for this part

B3 Coupe E46 B5 G30 B5 Touring G31 B6 Convertible F12 B6 Gran Coupe F06 B7 F01 F02

Top OE numbers for Cap, radiator

Common original equipment numbers linked to stocked alternatives.

Radiator cap for Alpina B4 — what you need to know

Finding the right radiator cap for your Alpina B4 is essential for safe and reliable driving. We offer a wide selection from leading manufacturers, all with TecDoc-verified fitment for your specific vehicle.

When choosing radiator cap for your Alpina B4, consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.

All radiator cap listed on this page are confirmed compatible with Alpina B4. Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.

Frequently Asked Questions

What radiator cap fits a Alpina B4?

We have radiator cap options verified for Alpina B4. Select your exact engine above to confirm fitment. All compatibility data is verified through TecDoc.

How many radiator cap options are available for Alpina B4?

There are 0 radiator cap options available for the Alpina B4. Prices vary by brand and specification.

What brands make radiator cap for Alpina B4?

Multiple brands offer radiator cap for the Alpina B4. All parts are new, with TecDoc-verified fitment and our 14-day guarantee.

How do I find the OE part number for Alpina B4 radiator cap?

Check your Alpina B4 owner's manual or service book for the original part number. You can also use our OE number search to find compatible aftermarket alternatives. The part number is often printed on the existing component.