Wiseco · Clearance
Wiseco Groove Lock Spacer - 3.894-3.950inch bores Oil Rail Support Shelf Stock
MPN GLS41 · Store SKU wisGLS41
Supplier stock checked 11/7/2026, 7:10:37 AM UTC. Adding a part does not reserve it.
Clearance and scratch-and-dent parts are final sale. No returns or refunds.
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
Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. Wiseco Groove Lock Spacers are engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco's Mentor, Ohio manufacturing facility.
Manufacturer fitment & guides
Check GLS41 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Clearance item. All sales are final under the supplier clearance policy.