Wiseco · New
Wiseco 103.39mm Black Anodized Ring Compressor Sleeve
MPN RCS40900 · Store SKU wisRCS40900
Supplier stock checked 11/7/2026, 7:11:19 PM 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
Wiseco ring compressor sleeves are forged in-house in the USA and are a precision solution to assist in your high-performance engine build. Ring Compressor Sleeve 103.39 mm Bore Ring Compressor Sleeve 103.39mm
Manufacturer fitment & guides
Check RCS40900 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y