GSC Power Division · New
GSC P-D BMW N63/S63 (+.003in Oversize) Intake/Exhaust Valve Guide - Single
MPN 3139.003-1 · Store SKU gsc3139.003-1
Supplier stock checked 11/7/2026, 7:24:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
GSC P-D BMW N63/S63 (+.003in Oversize) Intake/Exhaust Valve Guide - Single
Manufacturer fitment & guides
Check 3139.003-1 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y