Browse our selection of quality engine oil filler cap o-ring parts designed specifically for your Buick Regal. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
25th Anniversary Edition · Base · CXL · Custom · GS · GSE · Gran Sport · LS · LSE · Limited · Olympic Gold Edition · Premium · Sport Touring
Coupe · Sedan
L4 2.0L · L4 2.4L · V6 3.1L · V6 3.8L
Automatic · Manual
