
Wiseco · New
Wiseco GROOVE LOCK SPACER 4.002 - 4.060inch Oil Rail Support Shelf Stock
MPN W4953 · Store SKU wisW4953
Supplier stock checked 11/7/2026, 5:45:40 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
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. Wiseco offers a range of performance accessories to help you get your performance rebuild done right, including ring compressors, chamber mold kits, piston components, and more. 3.970 - 4.029 Groove Lock Spacer, .200 Radial Wall 3.970 - 4.029 Groove Lock Spacer
Manufacturer fitment & guides
Check W4953 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- California Proposition 65: Y